WO2006061907A1 - Mold repairing method, mold and molded product - Google Patents

Mold repairing method, mold and molded product Download PDF

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Publication number
WO2006061907A1
WO2006061907A1 PCT/JP2004/018415 JP2004018415W WO2006061907A1 WO 2006061907 A1 WO2006061907 A1 WO 2006061907A1 JP 2004018415 W JP2004018415 W JP 2004018415W WO 2006061907 A1 WO2006061907 A1 WO 2006061907A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
molding die
inorganic adhesive
resistant inorganic
repairing
Prior art date
Application number
PCT/JP2004/018415
Other languages
French (fr)
Japanese (ja)
Inventor
Toshiaki Kitazawa
Original Assignee
Asahi Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Co., Ltd filed Critical Asahi Co., Ltd
Priority to PCT/JP2004/018415 priority Critical patent/WO2006061907A1/en
Priority to PCT/JP2005/022701 priority patent/WO2006062208A1/en
Priority to JP2006546781A priority patent/JP4726803B2/en
Publication of WO2006061907A1 publication Critical patent/WO2006061907A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings

Definitions

  • the present invention relates to a molding die repair method, a molding die, and a molded product.
  • FIG. 8 is a diagram schematically showing a molding die 110 used for aluminum die casting.
  • 8 (a) is a cross-sectional view of the molding die 110
  • FIG. 8 (b) is a perspective view of the moving die 120 in the molding die 110
  • FIG. 8 (c) is a fixed die in the molding die 110.
  • FIG. 8 the gates, runners, etc. for pouring molten aluminum into the cavity S are omitted.
  • FIG. 9 is a diagram showing a molded product P manufactured using the molding die 110.
  • 9A is a perspective view of the molded product P
  • FIG. 9B is a cross-sectional view of the molded product P.
  • the molding die 110 has a moving die 120 and a fixed die 130. Molding is performed by pouring molten aluminum into the cavity S formed between the moving mold 120 and the stationary mold 130. If molding is performed normally, as shown in Fig. 9, the molded product P will be manufactured according to the surface condition.
  • FIG. 10 to FIG. 12 are diagrams schematically illustrating how a molded product Px with burrs and sacrificial meat is manufactured.
  • Fig. 10 (a) is a cross-sectional view showing a molding die 110 in which cracks have occurred on the molding surface
  • Fig. 10 (b) is an enlarged cross-sectional view showing the part indicated by reference signs A-F in Fig. 10 (a).
  • Fig. 11 (a) is a perspective view of a molded product Px with burrs and fillet
  • Fig. Ll (b) is a cross-sectional view of the molded product Px with burrs and fillet.
  • Fig. 11 (a) is a perspective view of a molded product Px with burrs and fillet
  • Fig. Ll (b) is a cross-sectional view of the molded product Px with burrs and fillet.
  • Fig. 11 (a) is a perspective view of a molded product P
  • FIG. 12 (a) is an enlarged cross-sectional view of the portion indicated by reference sign A-1F in Fig. 11 (b), and Fig. 12 (b) is an enlarged view of the portion indicated by reference sign F 'in Fig. 12 (a) It is sectional drawing shown. [0006] That is, if molding is performed many times using the molding die 110, a crack as indicated by reference signs AF in FIG. 10 may occur on the surface of the molding die 110. As a result, a molded product Px with burrs and waste meat Q on the surface as shown by reference signs AF in FIGS. 11 and 12 is produced.
  • Molded products Px with such burrs and burrs Q may be defective.
  • the burrs and burrs Q on the surface of the molded products Px are scraped off with endless paper. Therefore, there is a problem that it takes time and cost.
  • this molded product Px has burrs and waste meat Q, it will cause damage to the molded product or mold when taking out the molded product Px from the mold 110! .
  • Patent Document 1 Japanese Patent Laid-Open No. 3-433
  • the above-described conventional method for repairing a molding die has a problem that a high-level welding technique is required. Further, the conventional method for repairing a molding die has a problem that it takes a lot of time and cost to close all the cracks that may occur on the molding surface of the molding die by welding. Further, in the conventional method for repairing a molding die, there is a problem that it is not easy to flatten the raised portion formed after the crack is closed. Furthermore, in the conventional method of repairing a mold, it is not possible to plug a surface portion inside the crack (for example, 1 to 2 mm from the surface). On the other hand, since it is not easy to close the bottom part inside the crack, when the crack reaches the cooling pipe of the molding die, for example, the cooling piping part in the molding die There was a problem that it was difficult to repair.
  • the present invention was made to solve the above-described problems, and does not require advanced welding technology, a great amount of time and cost, and a raised portion formed after plugging a crack. It is an object of the present invention to provide a method for repairing a molding die which is easy to flatten and can easily close a bottom portion inside a crack. It is another object of the present invention to provide a molding die repaired by such a molding die repair method and various molded products manufactured using the molding die.
  • the method for repairing a molding die of the present invention includes a heat-resistant inorganic adhesive filling step of filling a heat-resistant inorganic adhesive inside a crack generated on a molding surface of the molding die.
  • the inside of the crack generated on the molding surface of the molding die is filled with a heat-resistant inorganic adhesive.
  • the surface is free of burrs and meat.
  • the surface of the molded product is free from burrs and sacrificial meat, the molded product and the mold are not damaged when the molded product is taken out from the mold.
  • the crack can be closed only by filling the inside of the crack with a heat-resistant inorganic adhesive, so that a high-level welding technique is not required. Further, even if many cracks occur on the molding surface of the molding die, it is easy to fill all of these cracks with a heat-resistant inorganic adhesive, and much time and cost are not required. Further, even if a raised portion of the heat-resistant inorganic adhesive is formed on the molding surface, the raised portion can be easily flattened using a file or endless paper.
  • the heat-resistant inorganic adhesive can be filled up to the bottom portion inside the crack. It is also easy to close the bottom portion inside the crack.
  • a heat resistant inorganic adhesive containing a large number of inorganic ceramic particles and an inorganic polymer can be preferably used as the heat resistant inorganic adhesive.
  • a shift between a moving die and a stationary die can be selected as a molding die to be repaired.
  • the molding die repair method of the present invention as the molding die to be repaired, it is possible to select a molding die having an extrusion pin and a deviation of the molding die without an extrusion pin. .
  • the first heat-resistant inorganic adhesive contains a large number of ceramic particles having a first average particle diameter. And a second heat-resistant inorganic adhesive comprising a plurality of ceramic particles having a second average particle size larger than the first average particle size.
  • the first heat-resistant inorganic adhesive and the second heat-resistant inorganic adhesive are included in the cracks generated on the molding surface of the molding die. It is preferable to fill the agents in this order.
  • the first heat-resistant inorganic adhesive is mainly filled in the bottom portion inside the crack, so that not only the surface portion inside the crack but also the crack. It is also easy to close the bottom portion in the interior of the.
  • the second heat-resistant inorganic adhesive is mainly filled in the cracks except for the bottom part, the mechanical properties of the heat-resistant inorganic adhesive filled in the cracks The strength can be made sufficiently high.
  • the first heat-resistant inorganic adhesive contains a large number of ceramic particles having a first average particle diameter.
  • a heat-resistant inorganic adhesive, a second heat-resistant inorganic adhesive containing a plurality of ceramic particles having a second average particle size larger than the first average particle size, and the second average particle size A heat-resistant inorganic adhesive preparation step for preparing a third heat-resistant inorganic adhesive containing a plurality of ceramic particles having a small third average particle diameter, and in the heat-resistant inorganic adhesive filling step,
  • the first heat-resistant inorganic adhesive, the second heat-resistant inorganic adhesive, and the third heat-resistant inorganic adhesive are placed in this order in the cracks generated on the molding surface of the molding die. Preferred to fill ,.
  • the first heat-resistant inorganic adhesive is mainly filled in the bottom portion inside the crack, so that not only the surface portion inside the crack but also the crack It is also easy to close the bottom portion in the interior of the.
  • the second heat-resistant organic adhesive is mainly filled in the inside of the crack except for the surface portion and the bottom portion, the heat resistance filled in the inside of the crack. It becomes possible to sufficiently increase the mechanical strength of the inorganic adhesive.
  • the surface portion inside the crack is mainly filled with the third heat-resistant inorganic adhesive, the surface of the molded mold after the repair has a sufficiently smooth surface. It becomes possible to do.
  • the first heat-resistant inorganic adhesive is one having a lower viscosity than the second heat-resistant inorganic adhesive.
  • the first heat-resistant inorganic adhesive is one having a lower viscosity than the second heat-resistant inorganic adhesive.
  • the heat-resistant inorganic adhesive is preferably a thermosetting inorganic adhesive.
  • the molding die is left as it is under relatively mild conditions (for example, normal temperature of 1 to 200 ° C). It is possible to solidify the heat-resistant inorganic adhesive simply by leaving it to stand.
  • the heat-resistant inorganic adhesive is a one-component heat-curable inorganic adhesive.
  • the molding die is repeatedly subjected to a thermal cycle with a large temperature difference during the molding process. And with force, in the repair method of a molding die of the present invention, because it is less Saryoku X 10- 6 Z ° C of linear expansion coefficient between mold and heat-resistant inorganic adhesive, molding Even when subjected to a cooling cycle with a large temperature difference during the process, no large stress is generated between the mold and the heat-resistant inorganic adhesive, and as a result, the heat-resistant inorganic adhesive peels off from the mold. This can be suppressed, and the life of the mold after repair can be extended.
  • the difference between the linear expansion rate of the mold and the linear expansion coefficient of the heat-resistant inorganic adhesive more preferably be less 3 X 10- 6 Z ° C ingredients and child and following 2 X 10- 6 Z ° C is more preferred.
  • the difference between the linear expansion coefficient of the first heat-resistant inorganic adhesive and the linear expansion coefficient of the molding die and the second the difference between the linear expansion coefficient of the heat-resistant inorganic adhesive and mold linear expansion coefficient it is preferable that the respective following 4 X 10- 6 Z ° C.
  • the linear expansion coefficient obtained by weighted averaging of the first heat-resistant inorganic adhesive and the second heat-resistant inorganic adhesive the difference between the mold linear expansion coefficient it is also preferably not more than 4 X 10- 6 Z ° C.
  • the difference between the linear expansion coefficient of the first heat-resistant inorganic adhesive and the linear expansion coefficient of the molding die, The difference between the linear expansion coefficient of the heat-resistant inorganic adhesive and the molding mold and the difference between the linear expansion coefficient of the third heat-resistant inorganic adhesive and the linear expansion coefficient of the mold are 4 X is preferably not more than 10- 6 Z ° C.
  • the first heat-resistant inorganic adhesive, the second heat-resistant inorganic adhesive, and the third heat-resistant inorganic adhesive a weighted average coefficient of linear expansion of the agent, the difference between the mold linear expansion coefficient, it is also preferably not more than 4 X 10- 6 Z ° C.
  • Silica-based inorganic adhesives have a relatively large linear expansion coefficient and good followability to the surface to be joined. Therefore, the silica-based inorganic adhesive has good compatibility with molding dies having a relatively large linear expansion coefficient. Become.
  • the heat-resistant inorganic adhesive preferably contains conductive fine particles.
  • the heat-resistant inorganic adhesive contains conductive fine particles, the brittleness of the filling after the heat-resistant inorganic adhesive is cured is improved. The effect that it can improve the property is also obtained.
  • the heat-resistant inorganic adhesive prior to performing the heat-resistant inorganic adhesive filling step, it is preferable to perform a step of washing the inside of the crack to be filled with an organic solvent.
  • the molding die is a molding die for rubber molding or a molding die for resin molding, fill the heat-resistant inorganic adhesive prior to performing the heat-resistant inorganic adhesive filling step.
  • the heat-resistant inorganic adhesive prior to performing the heat-resistant inorganic adhesive filling step, it is preferable to perform a step of washing the inside of the crack to be filled with a strong alkaline aqueous solution and a step of washing the inside of the crack to be filled with the heat-resistant inorganic adhesive with an organic solvent.
  • the molding die is a glass molding die or a die casting molding die
  • the inside of the crack is filled with a strong alkaline aqueous solution prior to performing the heat-resistant inorganic adhesive filling step.
  • the cleaning step and the step of cleaning the inside of the crack with an organic solvent, the glass and fat component or the metal and the fat component that may be present inside the crack can be removed. For this reason, the adhesion between the molding die and the heat-resistant inorganic adhesive is improved.
  • the method for repairing a molding die according to any one of (1) and (8) above includes a die for die casting molding, a molding die for glass molding, and a molding die for rubber molding. Forces that can be applied to all molds for molding molds and resin moldings Particularly effective when the mold is a mold for die casting.
  • the molding die of the present invention is a molding die repaired by the method for repairing a molding die described in any one of (1) and (9) above.
  • the molding die of the present invention is a molding die in which the inside of the crack is filled with a heat-resistant inorganic adhesive, a high-quality molded product having no burrs or burrs on the surface is manufactured. be able to. Also, due to this, by using the molding die of the present invention, the molded product or the molding die is not damaged when the molded product is taken out from the molding die. [0055] (11) The molded product of the present invention is a molded product manufactured using the molding die described in (10) above.
  • the molded product of the present invention is a molded product manufactured using the excellent molding die as described above, it is a molded product with high quality and low manufacturing cost.
  • Examples of such molded products include various metal products such as aluminum, zinc, and magnesium when the molding die is a die casting molding die.
  • various glass products are exemplified.
  • various rubber products are exemplified.
  • the molding die is a molding die for resin molding, various types of resin products are exemplified.
  • FIG. 1 is a diagram schematically illustrating a method for repairing a molding die according to Embodiment 1.
  • FIG. 2 is a diagram schematically showing the method for repairing the molding die according to the first embodiment.
  • FIG. 3 is a view showing a molded product Pa manufactured by a molding die 110a.
  • FIG. 4 is a diagram schematically showing a method for repairing a molding die according to a second embodiment.
  • FIG. 5 is a view showing a molded product Pb manufactured by a molding die 110b.
  • FIG. 6 is a diagram schematically showing a method for repairing a molding die according to the third embodiment.
  • FIG. 7 is a diagram schematically showing a method for repairing a molding die according to a fourth embodiment.
  • FIG. 8 is a diagram schematically illustrating the molding die 110.
  • FIG. 9 is a view showing a molded product P manufactured by the molding die 110.
  • FIG. 10 A diagram schematically illustrating how a molded product Px with burrs and meat is produced.
  • FIG. 11 A diagram schematically illustrating how a molded product Px with burrs and meat is produced.
  • FIG. 12 A diagram schematically illustrating how a molded product Px with burrs and meat is produced.
  • FIG. 1 and FIG. 2 are diagrams schematically illustrating the repair method for the molding die according to the first embodiment.
  • FIG. 1 (a) is a cross-sectional view showing a repaired mold 110a
  • FIG. 1 (b) is an enlarged cross-sectional view showing a portion indicated by reference signs AF in FIG. 1 (a).
  • FIG. 2 (a) -FIG. 2 (d) are enlarged views showing each step in the molding die repair method according to the first embodiment.
  • FIG. 3 is a view showing a molded product Pa manufactured by the molding die 110a.
  • Fig. 3 (a) is a perspective view of the molded product Pa
  • Fig. 3 (b) is a cross-sectional view of the molded product Pa.
  • the molding die 110a has a moving die 120a and a fixed die 130a.
  • the method for repairing a molding die according to Embodiment 1 includes cracks (marks) generated on the molding surface of a molding die 110a (moving die 120a and fixed die 130a) for aluminum die casting.
  • No. A-F. Includes a step of filling the heat-resistant inorganic adhesive 140 with Then, the molding die repair method according to Embodiment 1 includes the following (P1) step one (P4) step.
  • the inside of the cracks 122a and 132a is cleaned with a strong alkaline aqueous solution.
  • a strong alkaline aqueous solution for example, a potassium hydroxide aqueous solution is used.
  • the cracks 122a and 132a are cleaned with an organic solvent.
  • an organic solvent For example, acetone is used as the organic solvent.
  • Fig. 2 (b) shows the inner surface of the cracks 122a and 132a when the organic solvent cleaning process is completed.
  • (P3) Heat-resistant inorganic adhesive filling step As shown in FIG. 2 (c), the heat-resistant inorganic adhesive 140 is filled in the cracks 122a and 132a.
  • the heat-resistant inorganic adhesive 140 for example, Tolon Gosei Co., Ltd., one-component heat-curable inorganic adhesive, Aaron Ceramic C is used.
  • the raised part of the heat-resistant inorganic adhesive 140 is flattened.
  • the raised portion is flattened using a file.
  • the cracks 122a and 132a generated on the molding surface of the molding die 110a are filled with the heat-resistant inorganic adhesive 140. Therefore, as shown in Fig. 3, the surface of the molded product Pa is free from burrs and sacrificial meat. Further, since the surface of the molded product Pa is free of burrs and sagging, the molded product Pa and the molded mold 110a are not damaged when the molded product Pa is taken out from the molded mold 110a.
  • the cracks 122a and 132a can be closed only by filling the insides of the cracks 122a and 132a with the heat-resistant inorganic adhesive 140. It eliminates the need for advanced welding techniques. Moreover, even if many cracks are generated on the molding surface of the molding die 110a, it is easy to fill all of these cracks with the heat-resistant inorganic adhesive 140, and it does not require much time and cost. . Further, even if a raised portion of the heat-resistant inorganic adhesive 140 is formed on the surface of the molding surface, the raised portion can be easily flattened using a file or endless paper.
  • the heat-resistant inorganic adhesive 140 is filled up to the bottom portions of the cracks 122a and 132a. Is possible.
  • the average of ceramic particles contained in the heat-resistant inorganic adhesive 140 depends on the size, depth, and shape of the cracks 122a, 132a.
  • the particle size and the viscosity of the heat-resistant inorganic adhesive 140 it is possible to appropriately repair various cracks. That is, when the cracks 122a, 132a are cracks having an elongated shape, it is preferable to use a heat-resistant inorganic adhesive 140 having a small average particle diameter / containing ceramic particles and a low viscosity.
  • cracks 122a, 132a If the crack is a crack having a wide shape, it is preferable to use a heat-resistant inorganic adhesive 140 having a large average particle diameter, including ceramic particles and a relatively high viscosity.
  • the heat-resistant inorganic adhesive 140 since the heat-resistant inorganic adhesive 140 is used, after the heat-resistant inorganic adhesive 140 is filled in the cracks 122a and 132a, The heat-resistant inorganic adhesive 140 can be solidified by simply leaving the molding dies 120a and 130a as they are under relatively mild conditions (for example, normal temperature of 1 200 ° C.).
  • the linear expansion coefficient of the heat-resistant inorganic adhesive 140 is 13 X 10- 6 Z ° C, mold 110a
  • the heat-resistant inorganic adhesive 140 is filled.
  • the interior of cracks 122a and 132a is cleaned with a strong alkaline aqueous solution, and the interior of cracks 122a and 132a that are to be filled with heat-resistant inorganic adhesive 140 is cleaned with an organic solvent.
  • aluminum A1 and oil / fat components that may be present in the cracks 122a and 132a can be removed. For this reason, the adhesion between the molding die 110a and the heat-resistant inorganic adhesive 140 is improved.
  • the molding die 110a according to Embodiment 1 is a molding die repaired by the above-described repairing method.
  • the molding die 110a according to Embodiment 1 is a molding die in which the insides of the cracks 122a and 132a are filled with the heat-resistant inorganic adhesive 140. A quality molded product Pa can be produced. Further, due to this, the first embodiment is related. By using the molding die 110a, the molded product Pa and the molding die 110a are not damaged when the molded product Pa is taken out from the molding die 110a.
  • the molded product Pa according to the first embodiment is a molded product manufactured using the molding die 110a according to the first embodiment.
  • the molded product Pa according to the first embodiment is a molded product manufactured using the excellent molding die 110a as described above, and thus is a molded product with high quality and low manufacturing cost.
  • FIG. 4 is a diagram schematically illustrating the method for repairing the molding die according to the second embodiment.
  • FIG. 4 (a) is a cross-sectional view showing the repaired molding die 110b
  • FIG. 4 (b) is an enlarged cross-sectional view showing a portion indicated by reference signs AF in FIG. 4 (a).
  • FIG. 5 is a view showing a molded product Pb manufactured by the molding die 110b.
  • FIG. 5 (a) is a perspective view of the aluminum die-cast molded product Pb
  • FIG. 5 (b) is a cross-sectional view of the aluminum die-cast molded product Pb.
  • the molding die 110b for aluminum die casting has a moving die 120b and a fixed die 130b.
  • the method for repairing the molding die according to the second embodiment occurred on the molding surface of the molding die 110a (moving die 120a and fixed die 130a) for aluminum die casting molding.
  • heat-resistant inorganic adhesion is applied to the inside of the cracks (see symbols A, B, D, E) that occurred on surfaces other than the surface perpendicular to the removal direction of the molding die 110b.
  • Agent 140 is to be filled. That is, the heat-resistant inorganic adhesive 140 is not filled in the cracks (see symbols C and F) generated on the surface perpendicular to the removal direction of the molding die 110b.
  • the surface of the molded product Pb other than the surface perpendicular to the removal direction of the molding die 110b is burr, sanit Q
  • the problem is that it becomes impossible to take out the molded product from the mold,
  • the mold force can also solve the problem that the molded product or mold may be damaged when the molded product is taken out.
  • FIG. 6 is a diagram schematically illustrating a method for repairing the molding die according to the third embodiment.
  • the method for repairing a molding die according to Embodiment 3 includes a first heat-resistant inorganic adhesive 142 containing a number of ceramic particles having a first average particle diameter as the heat-resistant inorganic adhesive, and the first average Preparing a second heat-resistant inorganic adhesive 144 containing a number of ceramic particles having a second average particle size larger than the particle size, and preparing a molding surface of the molding die. Molding including a heat-resistant inorganic adhesive filling step in which the first heat-resistant inorganic adhesive 14 2 and the second heat-resistant inorganic adhesive 144 are filled in this order inside the cracks 122c and 132c that have occurred. This is a mold repair method.
  • the first heat-resistant inorganic adhesive 142 is mainly filled in the bottom portion inside the cracks 122 c and 132 c. That's true. Therefore, according to the method for repairing the molding die according to the third embodiment, not only the inner surface of the crack 122c and 132c but also the bottom portion of the inner surface of the crack 122c and 132c. It is also easy to block.
  • the second heat-resistant inorganic adhesive 144 is provided in the portions other than the bottom portion in the cracks 122c and 132c. Will be filled mainly. Therefore, according to the method for repairing a molding die according to the third embodiment, the mechanical strength of the heat-resistant inorganic adhesive 144 filled in the cracks 122c and 132c can be sufficiently increased.
  • FIG. 7 is a diagram schematically illustrating a method for repairing a molding die according to the fourth embodiment.
  • the method for repairing a molding die according to Embodiment 4 includes a first heat-resistant inorganic adhesive 142 containing a number of ceramic particles having a first average particle diameter as the heat-resistant inorganic adhesive, the first average A second heat-resistant inorganic adhesive 144 containing a number of ceramic particles with a second average particle size larger than the particle size and a number with a third average particle size smaller than the second average particle size
  • a method for repairing a molding die including an inorganic adhesive 142, a second heat resistant inorganic adhesive 144, and a third heat resistant inorganic adhesive 146 in this order, and a heat resistant inorganic adhesive filling step. is there.
  • the first heat-resistant inorganic adhesive 142 is mainly filled in the bottom portion inside the cracks 122 d and 132 d. That's true. For this reason, according to the method for repairing the molding die according to the fourth embodiment, not only the inner surface of the crack 122d and 132d but also the bottom portion of the inner surface of the crack 122d and 132d is blocked. It becomes easy.
  • the surface portion inside the cracks 122d, 132d is mainly filled with the third heat-resistant inorganic adhesive 146. Will be.
  • the surface of the molding die after the repair can be made sufficiently smooth.
  • the molding die repair method, the molding die, and the molded product of the present invention have been described based on the above embodiments, but the present invention is not limited to each of the above embodiments. Without departing from the scope of the present invention, the present invention can be carried out in various modes without departing from the scope, and for example, the following modifications are possible.
  • the method for repairing a molding die of the present invention is an aluminum Show the case of applying to a die for molding die casting!
  • the present invention is not limited to this.
  • the method for repairing a molding die of the present invention can also be applied to molding die for zinc casting, forging magnesium, and other die casting molding.
  • the molding die repair method of the present invention includes molding dies for molding various glass products, molding dies for molding various rubber products, molding dies for molding various resin products, and other product molding. It can also be applied to other molds.
  • the force using Aron Ceramic C of Toagosei Co., Ltd. as the heat-resistant inorganic adhesive is not limited to this.
  • Other heat-resistant inorganic adhesives can be used, or a heat-resistant inorganic adhesive containing conductive fine particles can be used.
  • the force of performing the step of washing the interior of the crack with a strong alkaline aqueous solution prior to performing the heat-resistant inorganic adhesive filling step is limited to this. It is not something.
  • the heat-resistant inorganic adhesive can be filled without performing the step of washing with a strong alkaline aqueous solution.

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  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention provides a mold repairing method. This method is characterized by comprising a heat resistant inorganic adhesive filling step of filling a heat resistant inorganic adhesive (140) into cracks (122, 132) formed on the molding surface of a movable mold (120a) and a fixed mold (130a) in a mold (110a) for aluminum die casting. In the mold repairing method, since the heat resistant inorganic adhesive (140) is filled into the cracks (122, 132) formed on the molding surface of the movable mold (120a) or the fixed mold (130a), burrs and padding (Q) are not formed. Further, since burrs and padding (Q) are not adhered onto the surface of a molded product (Pa), in taking out the molded product (Pa) from the movable mold (120a) and the fixed mold (130a), damage to the movable mold (120a), the fixed mold (130a), and the molded product (Pa) does not occur.

Description

明 細 書  Specification
成型金型の補修方法並びに成型金型及び成型製品  Mold repair method, mold and molded product
技術分野  Technical field
[0001] 本発明は、成型金型の補修方法並びに成型金型及び成型製品に関する。  The present invention relates to a molding die repair method, a molding die, and a molded product.
背景技術  Background art
[0002] 図 8は、アルミニウムダイカスト成型に用いる成型金型 110を説明するために模式的 に示す図である。図 8 (a)は成型金型 110の断面図であり、図 8 (b)は成型金型 110 における移動金型 120の斜視図であり、図 8 (c)は成型金型 110における固定金型 1 30の斜視図である。なお、図 8においては、溶融状態のアルミニウムをキヤビティ Sに 流し込むための湯口、湯道などについては省略してある。図 9は、成型金型 110を用 いて製造される成型製品 Pを示す図である。図 9 (a)は成型製品 Pの斜視図であり、 図 9 (b)は成型製品 Pの断面図である。  FIG. 8 is a diagram schematically showing a molding die 110 used for aluminum die casting. 8 (a) is a cross-sectional view of the molding die 110, FIG. 8 (b) is a perspective view of the moving die 120 in the molding die 110, and FIG. 8 (c) is a fixed die in the molding die 110. FIG. In FIG. 8, the gates, runners, etc. for pouring molten aluminum into the cavity S are omitted. FIG. 9 is a diagram showing a molded product P manufactured using the molding die 110. 9A is a perspective view of the molded product P, and FIG. 9B is a cross-sectional view of the molded product P.
[0003] 成型金型 110は、図 8に示すように、移動金型 120及び固定金型 130を有している 。成型は、移動金型 120と固定金型 130との間に形成されるキヤビティ Sに溶融状態 のアルミニウムを注湯することにより行われる。そして、正常に成型が行われると、図 9 に示すように、表面状態のょ 、成型製品 Pが製造されることになる。  As shown in FIG. 8, the molding die 110 has a moving die 120 and a fixed die 130. Molding is performed by pouring molten aluminum into the cavity S formed between the moving mold 120 and the stationary mold 130. If molding is performed normally, as shown in Fig. 9, the molded product P will be manufactured according to the surface condition.
[0004] ところで、このような成型金型 110を用いて何回も成型を行うと、成型金型 110の表 面 (特に、湯口の近傍の角部）にクラック、ピンホール、面荒れなど（以下、この明細書 ではこれらを総称して「クラック」という。）が発生することがある。そうなると、このクラッ クに起因して、表面にバリ、駄肉がついた成型製品が製造されることになる。 [0004] By the way, if molding is performed many times using such a molding die 110, cracks, pinholes, surface roughness, etc. on the surface of the molding die 110 (especially the corner near the gate) ( Hereinafter, in this specification, these are collectively referred to as “cracks”). Then, due to this crack, a molded product with burrs and meat on the surface is manufactured.
[0005] 図 10—図 12は、バリ、駄肉がついた成型製品 Pxが製造される様子を説明するた めに模式的に示す図である。図 10 (a)は成型面にクラックが発生した成型金型 110 を示す断面図であり、図 10 (b)は図 10 (a)の符号 A— Fに示す部分を拡大して示す 断面図である。図 11 (a)はバリ、駄肉がついた成型製品 Pxの斜視図であり、図 l l (b )はバリ、駄肉がついた成型製品 Pxの断面図である。図 12 (a)は図 11 (b)の符号 A 一 Fに示す部分を拡大して示す断面図であり、図 12 (b)は図 12 (a)の符号 F'に示す 部分をさらに拡大して示す断面図である。 [0006] すなわち、成型金型 110を用いて何回も成型を行うと、成型金型 110の表面には、 図 10の符号 A— Fに示すようなクラックが発生することがある。そうなると、これに起因 して、図 11及び図 12の符号 A— Fに示すようなバリ、駄肉 Qが表面についた成型製 品 Pxが製造されることになる。 FIG. 10 to FIG. 12 are diagrams schematically illustrating how a molded product Px with burrs and sacrificial meat is manufactured. Fig. 10 (a) is a cross-sectional view showing a molding die 110 in which cracks have occurred on the molding surface, and Fig. 10 (b) is an enlarged cross-sectional view showing the part indicated by reference signs A-F in Fig. 10 (a). It is. Fig. 11 (a) is a perspective view of a molded product Px with burrs and fillet, and Fig. Ll (b) is a cross-sectional view of the molded product Px with burrs and fillet. Fig. 12 (a) is an enlarged cross-sectional view of the portion indicated by reference sign A-1F in Fig. 11 (b), and Fig. 12 (b) is an enlarged view of the portion indicated by reference sign F 'in Fig. 12 (a) It is sectional drawing shown. [0006] That is, if molding is performed many times using the molding die 110, a crack as indicated by reference signs AF in FIG. 10 may occur on the surface of the molding die 110. As a result, a molded product Px with burrs and waste meat Q on the surface as shown by reference signs AF in FIGS. 11 and 12 is produced.
[0007] このようなバリ、駄肉 Qがついた成型製品 Pxは不良品となることがあり、その場合に は、成型製品 Pxの表面にあるバリ、駄肉 Qをエンドレスペーパーなどによって削り落 とす必要があるため、そのための時間、コストがかかるという問題がある。  [0007] Molded products Px with such burrs and burrs Q may be defective. In such cases, the burrs and burrs Q on the surface of the molded products Px are scraped off with endless paper. Therefore, there is a problem that it takes time and cost.
また、この成型製品 Pxにバリ、駄肉 Qがあると、成型金型 110から成型製品 Pxを取 り出す際に成型製品や成型金型の損傷を招くこととなると!/、う問題がある。  In addition, if this molded product Px has burrs and waste meat Q, it will cause damage to the molded product or mold when taking out the molded product Px from the mold 110! .
[0008] なお、これらの問題は、アルミニウムダイカスト成型に用いる成型金型だけに見られ る問題ではなぐ他の金属のダイカスト成型に用いる成型金型、ガラス成型に用いる 成型金型、ゴム成型に用いる成型金型、榭脂成型に用いる成型金型の場合などにも 共通して見られる問題である。  [0008] It should be noted that these problems are not problems seen only in the molding die used for aluminum die casting, but are used for molding die used for die casting of other metals, molding die used for glass molding, and rubber molding. This problem is also commonly seen in molding dies and molding dies used for resin molding.
[0009] そこで、従来より、上記のような問題を解決することのできる成型金型の補修方法が 開示されている (例えば、特許文献 1参照。 ) oこの成型金型の補修方法は、成型金 型の補修部分及び補修材の双方を例えば 1400°C以上に加熱して補修部分に溶融 池を作り、これを冷却するというものである。これにより、成型金型の表面に発生したク ラックを塞ぐことができ、上記のような問題を解決することができる。  [0009] Therefore, conventionally, a method for repairing a molding die that can solve the above-described problems has been disclosed (for example, refer to Patent Document 1). For example, both the repair part of the mold and the repair material are heated to, for example, 1400 ° C or more to create a molten pool in the repair part and cool it. As a result, the cracks generated on the surface of the molding die can be blocked, and the above problems can be solved.
[0010] 特許文献 1：特開平 3— 433号公報  Patent Document 1: Japanese Patent Laid-Open No. 3-433
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0011] し力しながら、上記した従来の成型金型の補修方法においては、高度の溶接技術 が必要であるという問題があった。また、従来の成型金型の補修方法においては、成 型金型の成型面に多数発生することのあるクラックのすべてを溶接により塞ぐには多 大な時間及びコストがかかるという問題があった。また、従来の成型金型の補修方法 においては、クラックを塞いだ後に形成される盛り上がり部分を平坦ィ匕するのが容易 ではないという問題があった。さらにまた、従来の成型金型の補修方法においては、 クラックの内部における表面部分 (例えば、表面から 1一 2mmの部分。）を塞ぐことは 容易である一方クラックの内部における底部分を塞ぐことは容易ではないため、クラッ クが成型金型の例えば冷却用配管まで達しているような場合には、成型金型におけ る冷却用配管部分の補修が容易ではな 、と 、う問題があった。 [0011] However, the above-described conventional method for repairing a molding die has a problem that a high-level welding technique is required. Further, the conventional method for repairing a molding die has a problem that it takes a lot of time and cost to close all the cracks that may occur on the molding surface of the molding die by welding. Further, in the conventional method for repairing a molding die, there is a problem that it is not easy to flatten the raised portion formed after the crack is closed. Furthermore, in the conventional method of repairing a mold, it is not possible to plug a surface portion inside the crack (for example, 1 to 2 mm from the surface). On the other hand, since it is not easy to close the bottom part inside the crack, when the crack reaches the cooling pipe of the molding die, for example, the cooling piping part in the molding die There was a problem that it was difficult to repair.
[0012] そこで、本発明は、上記した問題を解決するためになされたもので、高度の溶接技 術並びに多大な時間及びコストを必要とせず、クラックを塞いだ後に形成される盛り 上がり部分を平坦ィ匕するのが容易で、クラックの内部における底部分を塞ぐことも容 易な成型金型の補修方法を提供することを目的とする。また、このような成型金型の 補修方法によって補修された成型金型及びこの成型金型を用いて製造された各種 成型製品を提供することを目的とする。  [0012] Therefore, the present invention was made to solve the above-described problems, and does not require advanced welding technology, a great amount of time and cost, and a raised portion formed after plugging a crack. It is an object of the present invention to provide a method for repairing a molding die which is easy to flatten and can easily close a bottom portion inside a crack. It is another object of the present invention to provide a molding die repaired by such a molding die repair method and various molded products manufactured using the molding die.
課題を解決するための手段  Means for solving the problem
[0013] (1)本発明の成型金型の補修方法は、成型金型の成型面に発生したクラックの内部 に耐熱性無機接着剤を充填する耐熱性無機接着剤充填工程を含むことを特徴とす る。 [0013] (1) The method for repairing a molding die of the present invention includes a heat-resistant inorganic adhesive filling step of filling a heat-resistant inorganic adhesive inside a crack generated on a molding surface of the molding die. Suppose that
[0014] このため、本発明の成型金型の補修方法によれば、成型金型の成型面に発生した クラックの内部には耐熱性無機接着剤が充填されることになるため、成型製品の表面 にバリ、駄肉がっかなくなる。また、成型製品の表面にはバリ、駄肉がっかなくなるた め、成型金型から成型製品を取り出す際に成型製品や成型金型の損傷を招くことが なくなる。  [0014] Therefore, according to the method for repairing a molding die of the present invention, the inside of the crack generated on the molding surface of the molding die is filled with a heat-resistant inorganic adhesive. The surface is free of burrs and meat. In addition, since the surface of the molded product is free from burrs and sacrificial meat, the molded product and the mold are not damaged when the molded product is taken out from the mold.
[0015] また、本発明の成型金型の補修方法によれば、クラックの内部に耐熱性無機接着 剤を充填するだけでクラックを塞ぐことができるため、高度の溶接技術を必要としなく なる。また、成型金型の成型面にクラックが多数発生したとしても、これらのクラックの すべてに耐熱性無機接着剤を充填するのも容易であり、多大な時間及びコストを必 要としなくなる。また、成型面の表面に耐熱性無機接着剤の盛り上がり部分が形成さ れたとしても、この盛り上がり部分はやすりやエンドレスペーパーなどを用いて容易に 平坦ィ匕することができる。  [0015] Further, according to the method for repairing a molding die of the present invention, the crack can be closed only by filling the inside of the crack with a heat-resistant inorganic adhesive, so that a high-level welding technique is not required. Further, even if many cracks occur on the molding surface of the molding die, it is easy to fill all of these cracks with a heat-resistant inorganic adhesive, and much time and cost are not required. Further, even if a raised portion of the heat-resistant inorganic adhesive is formed on the molding surface, the raised portion can be easily flattened using a file or endless paper.
[0016] さらにまた、耐熱性無機接着剤として、比較的低粘度の耐熱性無機接着剤を選択 すれば、クラックの内部における底部分まで耐熱性無機接着剤を充填することが可 能となるため、クラックの内部における底部分を塞ぐことも容易である。 [0017] 本発明の成型金型の補修方法においては、耐熱性無機接着剤として、多数の無 機セラミックス粒子と無機ポリマーとを含有する耐熱性無機接着剤を好ましく用いるこ とがでさる。 [0016] Furthermore, if a heat-resistant inorganic adhesive having a relatively low viscosity is selected as the heat-resistant inorganic adhesive, the heat-resistant inorganic adhesive can be filled up to the bottom portion inside the crack. It is also easy to close the bottom portion inside the crack. In the method for repairing a molding die of the present invention, a heat resistant inorganic adhesive containing a large number of inorganic ceramic particles and an inorganic polymer can be preferably used as the heat resistant inorganic adhesive.
[0018] 本発明の成型金型の補修方法にお!ヽては、補修対象の成型金型として、移動金 型及び固定金型の 、ずれをも選択することができる。  [0018] In the method for repairing a molding die of the present invention, a shift between a moving die and a stationary die can be selected as a molding die to be repaired.
また、本発明の成型金型の補修方法においては、補修対象の成型金型として、押 し出しピンのある成型金型及び押し出しピンのな 、成型金型の 、ずれをも選択する ことができる。  Further, in the molding die repair method of the present invention, as the molding die to be repaired, it is possible to select a molding die having an extrusion pin and a deviation of the molding die without an extrusion pin. .
[0019] 押し出しピンのない成型金型の成型面にクラックが発生すると、成型製品についた バリ、駄肉の存在により、成型金型から成型製品を取り出すことができなくなることが ある。本発明の成型金型の補修方法をこのような押し出しピンのない成型金型に適 用すると、そのような重大な問題が解消される。  [0019] If a crack occurs on the molding surface of a molding die without an extrusion pin, the molding product may not be able to be taken out from the molding die due to the presence of burrs and fillet on the molding product. When the method for repairing a molding die of the present invention is applied to such a molding die without an extrusion pin, such a serious problem is solved.
[0020] 一方、押し出しピンのある成型金型の成型面にクラックが発生すると、成型製品に ついたバリ、駄肉の存在により、成型金型力も成型製品を取り出しにくくなることがあ る。このような場合には、押し出しピンにより成型製品を成型金型から取り外すことが できるが、成型金型から成型製品を取り出す際に、成型製品や成型金型の損傷を招 くことがある。本発明の成型金型の補修方法をこのような押し出しピンのある成型金 型に適用すると、そのような問題も解消される。  [0020] On the other hand, if a crack occurs on the molding surface of a molding die having an extrusion pin, it may be difficult to remove the molding product due to the presence of burrs and fillets on the molding product. In such a case, the molded product can be removed from the molding die using the extrusion pin. However, when the molded product is taken out from the molding die, the molded product or the molding die may be damaged. When the method for repairing a molding die according to the present invention is applied to a molding die having such an extrusion pin, such a problem is solved.
[0021] 成型金型の成型面に発生したクラックのうち、成型金型の取り外し方向に垂直な面 に発生したクラックの場合には、上記した問題は起こり難い。このため、本発明の成 型金型の補修方法においては、成型金型の取り外し方向に垂直な面以外の面に発 生したクラックの内部に耐熱性無機接着剤を充填することが好ましい。  [0021] Among the cracks generated on the molding surface of the molding die, the above-described problem is unlikely to occur in the case of a crack generated on a surface perpendicular to the removal direction of the molding die. For this reason, in the mold repair method of the present invention, it is preferable to fill the inside of the crack generated on the surface other than the surface perpendicular to the removal direction of the mold with a heat-resistant inorganic adhesive.
[0022] このような方法とすることにより、押し出しピンのない成型金型における、成型金型 力も成型製品を取り出すことができなくなることがあると 、う問題や、押し出しピンのあ る成型金型における、成型金型から成型製品を取り出す際に、成型製品や成型金型 の損傷を招くことがあるという問題を解消することができる。  [0022] By adopting such a method, there is a problem in that it is impossible to take out the molded product due to the molding die force in the molding die without the extrusion pin, and the molding die having the extrusion pin. In this case, it is possible to solve the problem that the molded product or the mold may be damaged when the molded product is taken out from the mold.
[0023] もちろん、成型金型の成型面に発生したクラックのすべてに本発明の成型金型の 補修方法を適用することが好ましぐこの場合には、上記した問題を解消することがで きることに加えて、表面にバリ、駄肉のない優れた成型製品を製造することができる。 [0023] Of course, it is preferable to apply the molding die repair method of the present invention to all cracks generated on the molding surface of the molding die. In this case, the above-described problems can be solved. In addition to being able to produce, it is possible to produce an excellent molded product having no burrs and no meat on the surface.
[0024] (2)上記（1)に記載の成型金型の補修方法においては、前記耐熱性無機接着剤と して、第 1の平均粒径をもった多数のセラミックス粒子を含有する第 1の耐熱性無機 接着剤及び前記第 1の平均粒径よりも大きな第 2の平均粒径をもった多数のセラミツ タス粒子を含有する第 2の耐熱性無機接着剤を準備する耐熱性無機接着剤準備ェ 程をさらに含み、前記耐熱性無機接着剤充填工程においては、成型金型の成型面 に発生したクラックの内部に、前記第 1の耐熱性無機接着剤及び前記第 2の耐熱性 無機接着剤をこの順序で充填することが好まし 、。  [0024] (2) In the method for repairing a molding die described in (1) above, the first heat-resistant inorganic adhesive contains a large number of ceramic particles having a first average particle diameter. And a second heat-resistant inorganic adhesive comprising a plurality of ceramic particles having a second average particle size larger than the first average particle size. In the heat-resistant inorganic adhesive filling step, the first heat-resistant inorganic adhesive and the second heat-resistant inorganic adhesive are included in the cracks generated on the molding surface of the molding die. It is preferable to fill the agents in this order.
[0025] このような方法とすることにより、クラックの内部における底部分には第 1の耐熱性無 機接着剤が主として充填されることになるため、クラックの内部における表面部分の みならずクラックの内部における底部分を塞ぐことも容易になる。  [0025] By adopting such a method, the first heat-resistant inorganic adhesive is mainly filled in the bottom portion inside the crack, so that not only the surface portion inside the crack but also the crack. It is also easy to close the bottom portion in the interior of the.
[0026] また、クラックの内部における底部分を除く部分には第 2の耐熱性無機接着剤が主 として充填されることになるため、クラックの内部に充填された耐熱性無機接着剤の 機械的強度を十分に高くすることが可能になる。  [0026] In addition, since the second heat-resistant inorganic adhesive is mainly filled in the cracks except for the bottom part, the mechanical properties of the heat-resistant inorganic adhesive filled in the cracks The strength can be made sufficiently high.
[0027] (3)上記（1)に記載の成型金型の補修方法においては、前記耐熱性無機接着剤と して、第 1の平均粒径をもった多数のセラミックス粒子を含有する第 1の耐熱性無機 接着剤、前記第 1の平均粒径よりも大きな第 2の平均粒径をもった多数のセラミックス 粒子を含有する第 2の耐熱性無機接着剤及び前記第 2の平均粒径よりも小さな第 3 の平均粒径をもった多数のセラミックス粒子を含有する第 3の耐熱性無機接着剤を準 備する耐熱性無機接着剤準備工程をさらに含み、前記耐熱性無機接着剤充填工程 においては、成型金型の成型面に発生したクラックの内部に、前記第 1の耐熱性無 機接着剤、前記第 2の耐熱性無機接着剤及び前記第 3の耐熱性無機接着剤をこの 順序で充填することが好まし 、。  [0027] (3) In the method for repairing a molding die described in (1) above, the first heat-resistant inorganic adhesive contains a large number of ceramic particles having a first average particle diameter. A heat-resistant inorganic adhesive, a second heat-resistant inorganic adhesive containing a plurality of ceramic particles having a second average particle size larger than the first average particle size, and the second average particle size A heat-resistant inorganic adhesive preparation step for preparing a third heat-resistant inorganic adhesive containing a plurality of ceramic particles having a small third average particle diameter, and in the heat-resistant inorganic adhesive filling step, The first heat-resistant inorganic adhesive, the second heat-resistant inorganic adhesive, and the third heat-resistant inorganic adhesive are placed in this order in the cracks generated on the molding surface of the molding die. Preferred to fill ,.
[0028] このような方法とすることにより、クラックの内部における底部分には第 1の耐熱性無 機接着剤が主として充填されることになるため、クラックの内部における表面部分の みならずクラックの内部における底部分を塞ぐことも容易になる。  [0028] By adopting such a method, the first heat-resistant inorganic adhesive is mainly filled in the bottom portion inside the crack, so that not only the surface portion inside the crack but also the crack It is also easy to close the bottom portion in the interior of the.
[0029] また、クラックの内部における表面部分及び底部分を除く部分には第 2の耐熱性無 機接着剤が主として充填されることになるため、クラックの内部に充填された耐熱性 無機接着剤の機械的強度を十分に高くすることが可能になる。 [0029] In addition, since the second heat-resistant organic adhesive is mainly filled in the inside of the crack except for the surface portion and the bottom portion, the heat resistance filled in the inside of the crack. It becomes possible to sufficiently increase the mechanical strength of the inorganic adhesive.
[0030] さらにまた、クラックの内部における表面部分には第 3の耐熱性無機接着剤が主と して充填されることになるため、補修後の成型金型の表面を十分に平滑な面とするこ とが可能になる。  [0030] Furthermore, since the surface portion inside the crack is mainly filled with the third heat-resistant inorganic adhesive, the surface of the molded mold after the repair has a sufficiently smooth surface. It becomes possible to do.
[0031] 上記（2)又は（3)に記載の成型金型の補修方法においては、第 1の耐熱性無機接 着剤としては、第 2の耐熱性無機接着剤よりも粘度の低いものを用いることが好ましい  [0031] In the method for repairing a molding die described in (2) or (3) above, the first heat-resistant inorganic adhesive is one having a lower viscosity than the second heat-resistant inorganic adhesive. Preferably used
[0032] (4)上記（1)一（3)のいずれかに記載の成型金型の補修方法においては、前記耐 熱性無機接着剤は、熱硬化性無機接着剤であることが好まし ヽ。 [0032] (4) In the method for repairing a molding die according to any one of (1) and (3) above, the heat-resistant inorganic adhesive is preferably a thermosetting inorganic adhesive. .
[0033] このような方法とすることにより、クラックの内部に耐熱性無機接着剤を充填した後 は、成型金型をそのまま比較的穏和な条件 (例えば、常温一 200°C。）のもとに静置 するだけで耐熱性無機接着剤を固化することができる。  [0033] By adopting such a method, after filling the inside of the crack with the heat-resistant inorganic adhesive, the molding die is left as it is under relatively mild conditions (for example, normal temperature of 1 to 200 ° C). It is possible to solidify the heat-resistant inorganic adhesive simply by leaving it to stand.
[0034] 上記 (4)に記載の成型金型の補修方法にお!、ては、前記耐熱性無機接着剤は、 一液加熱硬化性無機接着剤であることがさらに好ましい。  [0034] In the method for repairing a molding die described in (4) above, it is more preferable that the heat-resistant inorganic adhesive is a one-component heat-curable inorganic adhesive.
[0035] このような方法とすることにより、複数の液を混合する必要がなくなるため、クラックの 内部に耐熱性無機接着剤を充填する際の作業性が向上するという効果が得られる。  [0035] By adopting such a method, there is no need to mix a plurality of liquids, so that the workability when filling the inside of the crack with the heat-resistant inorganic adhesive is improved.
[0036] (5)上記（1)一（4)のいずれかに記載の成型金型の補修方法においては、前記耐 熱性無機接着剤の線膨張率と前記成型金型の線膨張率との差を、 4 X 10— 6Z°C以 下とすることが好ましい。 (5) In the method for repairing a molding die according to any one of (1) and (4) above, the linear expansion coefficient of the heat-resistant inorganic adhesive and the linear expansion coefficient of the molding die the difference, it is preferable that the 4 X 10- 6 Z ° C hereinafter.
[0037] 成型金型は、成型工程中に大きな温度差の冷熱サイクルを何度も受けることになる 。し力しながら、本発明の成型金型の補修方法においては、成型金型と耐熱性無機 接着剤との線膨張率との差力 X 10— 6Z°C以下とされているため、成型工程中に大 きな温度差の冷熱サイクルを受けても成型金型と耐熱性無機接着剤との間で大きな 応力が発生しなくなり、その結果、成型金型から耐熱性無機接着剤が剥げ落ちること が抑制され、補修後の成型金型の寿命を長くすることができる。 [0037] The molding die is repeatedly subjected to a thermal cycle with a large temperature difference during the molding process. And with force, in the repair method of a molding die of the present invention, because it is less Saryoku X 10- 6 Z ° C of linear expansion coefficient between mold and heat-resistant inorganic adhesive, molding Even when subjected to a cooling cycle with a large temperature difference during the process, no large stress is generated between the mold and the heat-resistant inorganic adhesive, and as a result, the heat-resistant inorganic adhesive peels off from the mold. This can be suppressed, and the life of the mold after repair can be extended.
[0038] この観点から言えば、前記耐熱性無機接着剤の線膨張率と前記成型金型の線膨 張率との差を、 3 X 10— 6Z°C以下とすることがより好ましぐ 2 X 10— 6Z°C以下とするこ とがさらに好ましい。 [0039] 上記（2)に記載の成型金型の補修方法にお!、ては、第 1の耐熱性無機接着剤の 線膨張率と成型金型の線膨張率との差及び第 2の耐熱性無機接着剤の線膨張率と 成型金型の線膨張率との差を、それぞれ 4 X 10— 6Z°C以下とすることが好ましい。 [0038] From this point of view, the difference between the linear expansion rate of the mold and the linear expansion coefficient of the heat-resistant inorganic adhesive, more preferably be less 3 X 10- 6 Z ° C ingredients and child and following 2 X 10- 6 Z ° C is more preferred. [0039] In the repair method of the molding die described in (2) above, the difference between the linear expansion coefficient of the first heat-resistant inorganic adhesive and the linear expansion coefficient of the molding die and the second the difference between the linear expansion coefficient of the heat-resistant inorganic adhesive and mold linear expansion coefficient, it is preferable that the respective following 4 X 10- 6 Z ° C.
[0040] また、上記（2)に記載の成型金型の補修方法にお!、ては、第 1の耐熱性無機接着 剤及び第 2の耐熱性無機接着剤の加重平均した線膨張率と、成型金型の線膨張率 との差を、 4 X 10— 6Z°C以下とすることも好ましい。 [0040] Further, in the method for repairing a molding die described in (2) above, the linear expansion coefficient obtained by weighted averaging of the first heat-resistant inorganic adhesive and the second heat-resistant inorganic adhesive the difference between the mold linear expansion coefficient, it is also preferably not more than 4 X 10- 6 Z ° C.
[0041] 上記（3)に記載の成型金型の補修方法にお!、ては、第 1の耐熱性無機接着剤の 線膨張率と成型金型の線膨張率との差、第 2の耐熱性無機接着剤の線膨張率と成 型金型の線膨張率との差及び第 3の耐熱性無機接着剤の線膨張率と成型金型の線 膨張率との差を、それぞれ 4 X 10— 6Z°C以下とすることが好ましい。 [0041] In the method for repairing the molding die described in (3) above, the difference between the linear expansion coefficient of the first heat-resistant inorganic adhesive and the linear expansion coefficient of the molding die, The difference between the linear expansion coefficient of the heat-resistant inorganic adhesive and the molding mold and the difference between the linear expansion coefficient of the third heat-resistant inorganic adhesive and the linear expansion coefficient of the mold are 4 X is preferably not more than 10- 6 Z ° C.
[0042] また、上記（3)に記載の成型金型の補修方法にお!、ては、第 1の耐熱性無機接着 剤、第 2の耐熱性無機接着剤及び第 3の耐熱性無機接着剤の加重平均した線膨張 率と、成型金型の線膨張率との差を、 4 X 10— 6Z°C以下とすることも好ましい。 [0042] Further, in the method for repairing a molding die described in (3) above, the first heat-resistant inorganic adhesive, the second heat-resistant inorganic adhesive, and the third heat-resistant inorganic adhesive a weighted average coefficient of linear expansion of the agent, the difference between the mold linear expansion coefficient, it is also preferably not more than 4 X 10- 6 Z ° C.
[0043] シリカ系無機接着剤は、線膨張率が比較的大きぐまた、被接合面への追随性がよ いため、線膨張率が比較的大きな成型金型に対して適合性のよいものとなる。  [0043] Silica-based inorganic adhesives have a relatively large linear expansion coefficient and good followability to the surface to be joined. Therefore, the silica-based inorganic adhesive has good compatibility with molding dies having a relatively large linear expansion coefficient. Become.
[0044] (6)上記（1)一（5)のいずれかに記載の成型金型の補修方法においては、前記耐 熱性無機接着剤には、導電性微粒子が含まれていることが好ましい。  [0044] (6) In the method for repairing a molding die according to any one of (1) and (5) above, the heat-resistant inorganic adhesive preferably contains conductive fine particles.
[0045] 成型金型における成型面の表面状態がひどくなると、成型金型の成型面全面を放 電加工により全面補修することもある。このような場合に、耐熱性無機接着剤に導電 性微粒子が含まれていると、クラックが無い部分とクラックに耐熱性無機接着剤が充 填された部分とで放電加工を同じ条件で行うことができるため、放電加工条件を複雑 ィ匕させることちない。  [0045] When the surface state of the molding surface in the molding die becomes severe, the entire molding surface of the molding die may be entirely repaired by electric discharge processing. In such a case, if conductive fine particles are contained in the heat-resistant inorganic adhesive, electric discharge machining should be performed under the same conditions for the portion where there is no crack and the portion where the crack is filled with the heat-resistant inorganic adhesive. Therefore, the EDM conditions must be complicated.
[0046] また、耐熱性無機接着剤に導電性微粒子が含まれていると、耐熱性無機接着剤が 硬化した後の充填物の脆さが改善されるため、補修後の成形金型の信頼性を高める ことができるという効果も得られる。  [0046] If the heat-resistant inorganic adhesive contains conductive fine particles, the brittleness of the filling after the heat-resistant inorganic adhesive is cured is improved. The effect that it can improve the property is also obtained.
[0047] (7)上記（1)一（6)のいずれかに記載の成型金型の補修方法においては、前記耐 熱性無機接着剤充填工程を行うのに先立って、前記耐熱性無機接着剤を充填しょう とするクラックの内部を有機溶剤で洗浄する工程を行うこととするのが好ましい。 [0048] 成型金型がゴム成型用の成型金型又は榭脂成型用の成型金型の場合には、耐熱 性無機接着剤充填工程を行うのに先立って、耐熱性無機接着剤を充填しょうとする クラックの内部を有機溶剤で洗浄する工程を行うことにより、クラックの内部に存在す ることがあるゴムや榭脂を取り除くことができる。このため、成型金型と耐熱性無機接 着剤との接着性が向上する。 [0047] (7) In the method for repairing a molding die according to any one of (1) and (6) above, prior to performing the heat-resistant inorganic adhesive filling step, the heat-resistant inorganic adhesive It is preferable to perform a step of washing the inside of the crack to be filled with an organic solvent. [0048] If the molding die is a molding die for rubber molding or a molding die for resin molding, fill the heat-resistant inorganic adhesive prior to performing the heat-resistant inorganic adhesive filling step. By performing the step of cleaning the inside of the crack with an organic solvent, it is possible to remove the rubber and resin that may be present inside the crack. For this reason, the adhesion between the molding die and the heat-resistant inorganic adhesive is improved.
[0049] (8)上記（1)一（6)のいずれかに記載の成型金型の補修方法においては、前記耐 熱性無機接着剤充填工程を行うのに先立って、前記耐熱性無機接着剤を充填しょう とするクラックの内部を強アルカリ性水溶液で洗浄する工程と、前記耐熱性無機接着 剤を充填しょうとするクラックの内部を有機溶剤で洗浄する工程とを行うこととするの が好ましい。  [0049] (8) In the method for repairing a molding die according to any one of (1) and (6) above, prior to performing the heat-resistant inorganic adhesive filling step, the heat-resistant inorganic adhesive It is preferable to perform a step of washing the inside of the crack to be filled with a strong alkaline aqueous solution and a step of washing the inside of the crack to be filled with the heat-resistant inorganic adhesive with an organic solvent.
[0050] 成型金型がガラス成型用の成型金型又はダイカスト成型用の成型金型の場合には 、耐熱性無機接着剤充填工程を行うのに先立って、クラックの内部を強アルカリ性水 溶液で洗浄する工程と、クラックの内部を有機溶剤で洗浄する工程とを行うことにより 、クラックの内部に存在することがあるガラス及び油脂成分又は金属及び油脂成分を 取り除くことができる。このため、成型金型と耐熱性無機接着剤との接着性が向上す る。  [0050] When the molding die is a glass molding die or a die casting molding die, the inside of the crack is filled with a strong alkaline aqueous solution prior to performing the heat-resistant inorganic adhesive filling step. By performing the cleaning step and the step of cleaning the inside of the crack with an organic solvent, the glass and fat component or the metal and the fat component that may be present inside the crack can be removed. For this reason, the adhesion between the molding die and the heat-resistant inorganic adhesive is improved.
[0051] (9)上記（1)一（8)のいずれかに記載の成型金型の補修方法は、ダイカスト成型用 の成型金型、ガラス成型用の成型金型、ゴム成型用の成型金型、榭脂成型用の成 型金型のすべてに、適用することができる力 前記成型金型がダイカスト成型用の成 型金型である場合に、特に効果がある。  [0051] (9) The method for repairing a molding die according to any one of (1) and (8) above includes a die for die casting molding, a molding die for glass molding, and a molding die for rubber molding. Forces that can be applied to all molds for molding molds and resin moldings Particularly effective when the mold is a mold for die casting.
[0052] ダイカスト成型においては、極めて大きな温度差及び圧力差の条件下で成型が行 われるため、成型金型にクラックが入りやすいからである。  [0052] In die casting, since molding is performed under conditions of extremely large temperature and pressure differences, cracks are likely to occur in the molding die.
[0053] (10)本発明の成型金型は、上記（1)一（9)のいずれかに記載の成型金型の補修方 法によって補修された成型金型である。  (10) The molding die of the present invention is a molding die repaired by the method for repairing a molding die described in any one of (1) and (9) above.
[0054] このため、本発明の成型金型は、クラックの内部が耐熱性無機接着剤で充填された 成型金型であるため、表面にバリ、駄肉のない高品質の成型製品を製造することが できる。また、このことに起因して、本発明の成型金型を用いることにより、成型金型 から成型製品を取り出す際に成型製品や成型金型の損傷を招くことがなくなる。 [0055] (11)本発明の成型製品は、上記（10)に記載の成型金型を用いて製造された成型 製品である。 [0054] Therefore, since the molding die of the present invention is a molding die in which the inside of the crack is filled with a heat-resistant inorganic adhesive, a high-quality molded product having no burrs or burrs on the surface is manufactured. be able to. Also, due to this, by using the molding die of the present invention, the molded product or the molding die is not damaged when the molded product is taken out from the molding die. [0055] (11) The molded product of the present invention is a molded product manufactured using the molding die described in (10) above.
[0056] このため、本発明の成型製品は、上記のように優れた成型金型を用いて製造され た成型製品であるため、高品質で製造コストの安い成型製品となる。  [0056] For this reason, since the molded product of the present invention is a molded product manufactured using the excellent molding die as described above, it is a molded product with high quality and low manufacturing cost.
このような成型製品としては、成型金型がダイカスト成型用の成型金型の場合には 、アルミニウム、亜鉛、マグネシウムなどの各種金属製品が例示される。成型金型が ガラス成型用の成型金型の場合には、各種ガラス製品が例示される。成型金型がゴ ム成型用の成型金型の場合には、各種ゴム製品が例示される。成型金型が榭脂成 型用の成型金型の場合には、各種榭脂製品が例示される。  Examples of such molded products include various metal products such as aluminum, zinc, and magnesium when the molding die is a die casting molding die. When the molding die is a molding die for glass molding, various glass products are exemplified. When the molding die is a molding die for rubber molding, various rubber products are exemplified. When the molding die is a molding die for resin molding, various types of resin products are exemplified.
図面の簡単な説明  Brief Description of Drawings
[0057] [図 1]実施形態 1に係る成型金型の補修方法を説明するために模式的に示す図であ る。  FIG. 1 is a diagram schematically illustrating a method for repairing a molding die according to Embodiment 1.
[図 2]実施形態 1に係る成型金型の補修方法を説明するために模式的に示す図であ る。  FIG. 2 is a diagram schematically showing the method for repairing the molding die according to the first embodiment.
[図 3]成型金型 110aによって製造される成型製品 Paを示す図である。  FIG. 3 is a view showing a molded product Pa manufactured by a molding die 110a.
[図 4]実施形態 2に係る成型金型の補修方法を説明するために模式的に示す図であ る。  FIG. 4 is a diagram schematically showing a method for repairing a molding die according to a second embodiment.
[図 5]成型金型 110bによって製造される成型製品 Pbを示す図である。  FIG. 5 is a view showing a molded product Pb manufactured by a molding die 110b.
[図 6]実施形態 3に係る成型金型の補修方法を説明するために模式的に示す図であ る。  FIG. 6 is a diagram schematically showing a method for repairing a molding die according to the third embodiment.
[図 7]実施形態 4に係る成型金型の補修方法を説明するために模式的に示す図であ る。  FIG. 7 is a diagram schematically showing a method for repairing a molding die according to a fourth embodiment.
[図 8]成型金型 110を説明するために模式的に示す図である。  FIG. 8 is a diagram schematically illustrating the molding die 110.
[図 9]成型金型 110によって製造される成型製品 Pを示す図である。  FIG. 9 is a view showing a molded product P manufactured by the molding die 110.
[図 10]バリ、駄肉がついた成型製品 Pxが製造される様子を説明するために模式的に 示す図である。  [FIG. 10] A diagram schematically illustrating how a molded product Px with burrs and meat is produced.
[図 11]バリ、駄肉がついた成型製品 Pxが製造される様子を説明するために模式的に 示す図である。 [図 12]バリ、駄肉がついた成型製品 Pxが製造される様子を説明するために模式的に 示す図である。 [FIG. 11] A diagram schematically illustrating how a molded product Px with burrs and meat is produced. [FIG. 12] A diagram schematically illustrating how a molded product Px with burrs and meat is produced.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0058] 以下、本発明の成型金型の補修方法並びに成型金型及び成型製品について、図 に示す実施の形態に基づいて説明する。  [0058] Hereinafter, a method for repairing a molding die, a molding die, and a molded product of the present invention will be described based on the embodiments shown in the drawings.
[0059] 〔実施形態 1〕  [Embodiment 1]
図 1及び図 2は、実施形態 1に係る成型金型の補修方法を説明するために模式的 に示す図である。図 1 (a)は補修された成型金型 110aを示す断面図であり、図 1 (b) は図 1 (a)の符号 A— Fに示す部分を拡大して示す断面図である。図 2 (a)—図 2 (d) は実施形態 1に係る成型金型の補修方法における各工程を拡大して示す図である。 図 3は、成型金型 110aによって製造される成型製品 Paを示す図である。図 3 (a)は 成型製品 Paの斜視図であり、図 3 (b)は成型製品 Paの断面図である。  FIG. 1 and FIG. 2 are diagrams schematically illustrating the repair method for the molding die according to the first embodiment. FIG. 1 (a) is a cross-sectional view showing a repaired mold 110a, and FIG. 1 (b) is an enlarged cross-sectional view showing a portion indicated by reference signs AF in FIG. 1 (a). FIG. 2 (a) -FIG. 2 (d) are enlarged views showing each step in the molding die repair method according to the first embodiment. FIG. 3 is a view showing a molded product Pa manufactured by the molding die 110a. Fig. 3 (a) is a perspective view of the molded product Pa, and Fig. 3 (b) is a cross-sectional view of the molded product Pa.
[0060] 成型金型 110aは、移動金型 120a及び固定金型 130aを有している。実施形態 1 に係る成型金型の補修方法は、図 1に示すように、アルミニウムダイカスト成型用の成 型金型 110a (移動金型 120a及び固定金型 130a)の成型面に発生したクラック (符 号 A— F参照。 )に耐熱性無機接着剤 140を充填する工程を含むものである。そして 、実施形態 1に係る成型金型の補修方法は、以下の (P1)工程一（P4)工程を含む。  [0060] The molding die 110a has a moving die 120a and a fixed die 130a. As shown in FIG. 1, the method for repairing a molding die according to Embodiment 1 includes cracks (marks) generated on the molding surface of a molding die 110a (moving die 120a and fixed die 130a) for aluminum die casting. No. A-F.) Includes a step of filling the heat-resistant inorganic adhesive 140 with Then, the molding die repair method according to Embodiment 1 includes the following (P1) step one (P4) step.
[0061] (P1)強アルカリ性水溶液による洗浄工程  [0061] (P1) Cleaning step with strong alkaline aqueous solution
移動金型 120aの成型面に発生したクラック 122a及び固定金型 130aの成型面に 発生したクラック 132aの内部に存在することがあるアルミニウム A1 (図 2 (a)参照。）を 除去するために、クラック 122a, 132aの内部を強アルカリ性水溶液で洗浄する。強 アルカリ性水溶液としては、例えば、水酸ィ匕カリウム水溶液を用いる。  In order to remove the crack 122a generated on the molding surface of the moving mold 120a and the aluminum A1 (see Fig. 2 (a)) that may exist inside the crack 132a generated on the molding surface of the stationary mold 130a, The inside of the cracks 122a and 132a is cleaned with a strong alkaline aqueous solution. As the strong alkaline aqueous solution, for example, a potassium hydroxide aqueous solution is used.
[0062] (P2)有機溶剤による洗浄工程  [0062] (P2) Cleaning process with organic solvent
クラック 122a, 132aの内部に存在することのある油脂成分（図示せず。）を除去す るために、クラック 122a, 132aの内部を有機溶剤で洗浄する。有機溶剤としては、例 えば、アセトンなどを用いる。図 2 (b)は、有機溶剤による洗浄工程が終了したときの クラック 122a, 132aの内咅の様子を示している。  In order to remove oil and fat components (not shown) that may be present in the cracks 122a and 132a, the cracks 122a and 132a are cleaned with an organic solvent. For example, acetone is used as the organic solvent. Fig. 2 (b) shows the inner surface of the cracks 122a and 132a when the organic solvent cleaning process is completed.
[0063] (P3)耐熱性無機接着剤充填工程 図 2 (c)に示すように、クラック 122a, 132aの内部に耐熱性無機接着剤 140を充填 する。耐熱性無機接着剤 140としては、例えば、東亞合成株式会社の一液加熱硬化 性無機接着剤であるァロンセラミック Cを用いる。 [0063] (P3) Heat-resistant inorganic adhesive filling step As shown in FIG. 2 (c), the heat-resistant inorganic adhesive 140 is filled in the cracks 122a and 132a. As the heat-resistant inorganic adhesive 140, for example, Tolon Gosei Co., Ltd., one-component heat-curable inorganic adhesive, Aaron Ceramic C is used.
[0064] (P4)平坦化工程  [0064] (P4) Planarization process
図 2 (d)に示すように、耐熱性無機接着剤 140の盛り上がり部分を平坦化する。盛り 上がり部分の平坦ィ匕は、例えばやすりを用いて行う。  As shown in Fig. 2 (d), the raised part of the heat-resistant inorganic adhesive 140 is flattened. For example, the raised portion is flattened using a file.
[0065] このため、実施形態 1に係る成型金型の補修方法によれば、成型金型 110aの成型 面に発生したクラック 122a, 132aの内部には耐熱性無機接着剤 140が充填される ことになるため、図 3に示すように、成型製品 Paの表面にバリ、駄肉がっくことがなく なる。また、成型製品 Paの表面にはバリ、駄肉がっかなくなるため、成型金型 110a から成型製品 Paを取り出す際に成型製品 Paや成型金型 110aの損傷を招くことがな くなる。  [0065] Therefore, according to the method for repairing a molding die according to the first embodiment, the cracks 122a and 132a generated on the molding surface of the molding die 110a are filled with the heat-resistant inorganic adhesive 140. Therefore, as shown in Fig. 3, the surface of the molded product Pa is free from burrs and sacrificial meat. Further, since the surface of the molded product Pa is free of burrs and sagging, the molded product Pa and the molded mold 110a are not damaged when the molded product Pa is taken out from the molded mold 110a.
[0066] また、実施形態 1に係る成型金型の補修方法によれば、クラック 122a, 132aの内 部に耐熱性無機接着剤 140を充填するだけでクラック 122a, 132aを塞ぐことができ るため、高度の溶接技術を必要としなくなる。また、成型金型 110aの成型面にクラッ クが多数発生したとしても、これらのクラックのすべてに耐熱性無機接着剤 140を充 填するのも容易であり、多大な時間及びコストを必要としなくなる。また、成型面の表 面に耐熱性無機接着剤 140の盛り上がり部分が形成されたとしても、この盛り上がり 部分はやすりやエンドレスペーパーなどを用いて容易に平坦ィ匕することができる。  [0066] Furthermore, according to the method for repairing a molding die according to Embodiment 1, the cracks 122a and 132a can be closed only by filling the insides of the cracks 122a and 132a with the heat-resistant inorganic adhesive 140. It eliminates the need for advanced welding techniques. Moreover, even if many cracks are generated on the molding surface of the molding die 110a, it is easy to fill all of these cracks with the heat-resistant inorganic adhesive 140, and it does not require much time and cost. . Further, even if a raised portion of the heat-resistant inorganic adhesive 140 is formed on the surface of the molding surface, the raised portion can be easily flattened using a file or endless paper.
[0067] また、実施形態 1に係る成型金型の補修方法によれば、耐熱性無機接着剤 140を 用いているため、クラック 122a, 132aの底部分まで耐熱性無機接着剤 140を充填 することが可能となる。  [0067] Further, according to the repair method of the molding die according to the first embodiment, since the heat-resistant inorganic adhesive 140 is used, the heat-resistant inorganic adhesive 140 is filled up to the bottom portions of the cracks 122a and 132a. Is possible.
[0068] また、実施形態 1に係る成型金型の補修方法によれば、クラック 122a, 132aの大 きさ、深さ、形状に応じて、耐熱性無機接着剤 140に含まれるセラミックス粒子の平均 粒径や、耐熱性無機接着剤 140の粘度を適宜調整することで、種々のクラック〖こ対し て適切な補修が可能になる。すなわち、クラック 122a, 132aが細長い形状を有する クラックである場合には、平均粒径の小さ!/、セラミックス粒子を含み粘度の低 、耐熱 性無機接着剤 140を用いるのが好ましい。その一方において、クラック 122a, 132a が幅広な形状を有するクラックである場合には、平均粒径の大き 、セラミックス粒子を 含み粘度の比較的高 、耐熱性無機接着剤 140を用いるのが好まし ヽ。 [0068] Further, according to the method for repairing the molding die according to Embodiment 1, the average of ceramic particles contained in the heat-resistant inorganic adhesive 140 depends on the size, depth, and shape of the cracks 122a, 132a. By appropriately adjusting the particle size and the viscosity of the heat-resistant inorganic adhesive 140, it is possible to appropriately repair various cracks. That is, when the cracks 122a, 132a are cracks having an elongated shape, it is preferable to use a heat-resistant inorganic adhesive 140 having a small average particle diameter / containing ceramic particles and a low viscosity. On the other hand, cracks 122a, 132a If the crack is a crack having a wide shape, it is preferable to use a heat-resistant inorganic adhesive 140 having a large average particle diameter, including ceramic particles and a relatively high viscosity.
[0069] また、実施形態 1に係る成型金型の補修方法によれば、耐熱性無機接着剤 140を 用いているため、クラック 122a, 132aの内部に耐熱性無機接着剤 140を充填した後 は、成型金型 120a, 130aをそのまま比較的穏和な条件 (例えば、常温一 200°C。 ) のもとに静置するだけで耐熱性無機接着剤 140を固化することができる。 [0069] Further, according to the method for repairing a molding die according to Embodiment 1, since the heat-resistant inorganic adhesive 140 is used, after the heat-resistant inorganic adhesive 140 is filled in the cracks 122a and 132a, The heat-resistant inorganic adhesive 140 can be solidified by simply leaving the molding dies 120a and 130a as they are under relatively mild conditions (for example, normal temperature of 1 200 ° C.).
[0070] また、実施形態 1に係る成型金型の補修方法によれば、一液加熱硬化性無機接着 剤を用いているため、複数の液を混合する必要がなくなるため、クラック 122a, 132a の内部に耐熱性無機接着剤 140を充填する際の作業性が向上するという効果もある [0070] Further, according to the method for repairing the molding die according to the first embodiment, since the one-component heat-curable inorganic adhesive is used, it is not necessary to mix a plurality of solutions. There is also an effect of improving workability when filling heat resistant inorganic adhesive 140 inside.
[0071] また、耐熱性無機接着剤 140の線膨張率は 13 X 10— 6Z°Cであり、成型金型 110a [0071] The linear expansion coefficient of the heat-resistant inorganic adhesive 140 is 13 X 10- 6 Z ° C, mold 110a
(ダイス鋼 SKD— 61)の線膨張率（10. 8 X 10— 6Z°C)との差が 2. 2 X 10— 6Z°Cであ る。 Ru difference 2. 2 X 10- 6 Z ° C der the linear expansion coefficient (die steel SKD- 61) (10. 8 X 10- 6 Z ° C).
[0072] このため、成型金型 110aと耐熱性無機接着剤 140との間で大きな応力が発生しな Vヽため、長期間に渡って成型金型 110aから耐熱性無機接着剤 140が剥げ落ちるこ とが抑制され、成型金型 110aの寿命も長い。  [0072] For this reason, no large stress is generated between the molding die 110a and the heat-resistant inorganic adhesive 140, so that the heat-resistant inorganic adhesive 140 peels off from the molding die 110a over a long period of time. This is suppressed and the life of the mold 110a is long.
[0073] 実施形態 1に係る成型金型の補修方法にお!ヽては、上記したように、耐熱性無機 接着剤充填工程を行うのに先立って、耐熱性無機接着剤 140を充填しょうとするクラ ック 122a, 132aの内部を強アルカリ性水溶液で洗浄する工程と、耐熱性無機接着 剤 140を充填しょうとするクラック 122a, 132aの内部を有機溶剤で洗浄する工程とを 行うこととしているため、クラック 122a, 132aの内部に存在することがあるアルミ-ゥ ム A1及び油脂成分を取り除くことができる。このため、成型金型 110aと耐熱性無機 接着剤 140との接着性が向上する。  [0073] In the method for repairing a molding die according to Embodiment 1, as described above, prior to performing the heat-resistant inorganic adhesive filling step, the heat-resistant inorganic adhesive 140 is filled. The interior of cracks 122a and 132a is cleaned with a strong alkaline aqueous solution, and the interior of cracks 122a and 132a that are to be filled with heat-resistant inorganic adhesive 140 is cleaned with an organic solvent. In addition, aluminum A1 and oil / fat components that may be present in the cracks 122a and 132a can be removed. For this reason, the adhesion between the molding die 110a and the heat-resistant inorganic adhesive 140 is improved.
[0074] 実施形態 1に係る成型金型 110aは、図 1一図 3に示すように、上記した補修方法に よって補修された成型金型である。  [0074] As shown in Fig. 1 and Fig. 3, the molding die 110a according to Embodiment 1 is a molding die repaired by the above-described repairing method.
[0075] このため、実施形態 1に係る成型金型 110aは、クラック 122a, 132aの内部が耐熱 性無機接着剤 140で充填された成型金型であるため、表面にバリ、駄肉のない高品 質の成型製品 Paを製造することができる。また、このことに起因して、実施形態 1に係 る成型金型 110aを用いることにより、成型金型 110aから成型製品 Paを取り出す際 に成型製品 Paや成型金型 110aの損傷を招くことがなくなる。 [0075] Therefore, the molding die 110a according to Embodiment 1 is a molding die in which the insides of the cracks 122a and 132a are filled with the heat-resistant inorganic adhesive 140. A quality molded product Pa can be produced. Further, due to this, the first embodiment is related. By using the molding die 110a, the molded product Pa and the molding die 110a are not damaged when the molded product Pa is taken out from the molding die 110a.
[0076] 実施形態 1に係る成型製品 Paは、実施形態 1に係る成型金型 110aを用いて製造 された成型製品である。  [0076] The molded product Pa according to the first embodiment is a molded product manufactured using the molding die 110a according to the first embodiment.
[0077] このため、実施形態 1に係る成型製品 Paは、上記のように優れた成型金型 110aを 用いて製造された成型製品であるため、高品質で製造コストの安い成型製品となる。  [0077] For this reason, the molded product Pa according to the first embodiment is a molded product manufactured using the excellent molding die 110a as described above, and thus is a molded product with high quality and low manufacturing cost.
[0078] 〔実施形態 2〕  [Embodiment 2]
図 4は、実施形態 2に係る成型金型の補修方法を説明するために模式的に示す図 である。図 4 (a)は補修された成型金型 110bを示す断面図であり、図 4 (b)は図 4 (a) の符号 A— Fに示す部分を拡大して示す断面図である。  FIG. 4 is a diagram schematically illustrating the method for repairing the molding die according to the second embodiment. FIG. 4 (a) is a cross-sectional view showing the repaired molding die 110b, and FIG. 4 (b) is an enlarged cross-sectional view showing a portion indicated by reference signs AF in FIG. 4 (a).
図 5は、成型金型 110bによって製造される成型製品 Pbを示す図である。図 5 (a)は アルミニウムダイカスト成型製品 Pbの斜視図であり、図 5 (b)はアルミニウムダイカスト 成型製品 Pbの断面図である。  FIG. 5 is a view showing a molded product Pb manufactured by the molding die 110b. FIG. 5 (a) is a perspective view of the aluminum die-cast molded product Pb, and FIG. 5 (b) is a cross-sectional view of the aluminum die-cast molded product Pb.
[0079] アルミニウムダイカスト成型用の成型金型 110bは、移動金型 120b及び固定金型 1 30bを有している。実施形態 2に係る成型金型の補修方法は、図 4に示すように、ァ ルミニゥムダイカスト成型用の成型金型 110a (移動金型 120a及び固定金型 130a) の成型面に発生したクラック (符号 A— F参照。）のうち、成型金型 110bの取り外し方 向に垂直な面以外の面に発生したクラック (符号 A, B, D, E参照。）の内部に耐熱 性無機接着剤 140を充填することとしている。すなわち、成型金型 110bの取り外し 方向に垂直な面に発生したクラック (符号 C, F参照。）の内部には耐熱性無機接着 剤 140を充填しな 、こととして 、る。  The molding die 110b for aluminum die casting has a moving die 120b and a fixed die 130b. As shown in FIG. 4, the method for repairing the molding die according to the second embodiment occurred on the molding surface of the molding die 110a (moving die 120a and fixed die 130a) for aluminum die casting molding. Of the cracks (see symbols A-F), heat-resistant inorganic adhesion is applied to the inside of the cracks (see symbols A, B, D, E) that occurred on surfaces other than the surface perpendicular to the removal direction of the molding die 110b. Agent 140 is to be filled. That is, the heat-resistant inorganic adhesive 140 is not filled in the cracks (see symbols C and F) generated on the surface perpendicular to the removal direction of the molding die 110b.
[0080] このため、実施形態 2に係る成型金型の補修方法においては、図 4 (b)に示すよう に、符号 C, Fに示すクラックは残存するため、このような成型金型 110bを用いて製 造される成型製品 Pbは、図 5に示すように、これらのクラックに対応する位置にバリ、 駄肉 Qが発生することになる。  [0080] For this reason, in the method for repairing a molding die according to the second embodiment, as shown in Fig. 4 (b), cracks indicated by reference numerals C and F remain, so that such a molding die 110b is used. As shown in Fig. 5, the molded product Pb produced by using the burrs and burrs Q are generated at positions corresponding to these cracks.
[0081] し力しながら、実施形態 2に係る成型金型の補修方法によれば、成型製品 Pbにお ける成型金型 110bの取り外し方向に垂直な面以外の面にはバリ、駄肉 Qがっかなく なるため、成型金型から成型製品を取り出すことができなくなるという問題や、成型金 型力も成型製品を取り出す際に成型製品や成型金型の損傷を招くことがあるという問 題を解消することができる。 [0081] However, according to the method for repairing the molding die according to the second embodiment, the surface of the molded product Pb other than the surface perpendicular to the removal direction of the molding die 110b is burr, sanit Q The problem is that it becomes impossible to take out the molded product from the mold, The mold force can also solve the problem that the molded product or mold may be damaged when the molded product is taken out.
[0082] なお、実施形態 2に係る成型金型の補修方法にぉ 、て、成型製品 Pbにおける成型 金型 110bの取り外し方向に垂直な面に発生したバリ、駄肉 Qを除去する必要がある 場合には、ヤスリ等を用いてこれを除去することができる。  [0082] In addition, it is necessary to remove the burrs and waste meat Q generated on the surface perpendicular to the removal direction of the molding die 110b in the molded product Pb by the method for repairing the molding die according to the second embodiment. In some cases, this can be removed using a file or the like.
[0083] 〔実施形態 3〕  [Embodiment 3]
図 6は、実施形態 3に係る成型金型の補修方法を説明するために模式的に示す図 である。  FIG. 6 is a diagram schematically illustrating a method for repairing the molding die according to the third embodiment.
実施形態 3に係る成型金型の補修方法は、耐熱性無機接着剤として、第 1の平均 粒径をもった多数のセラミックス粒子を含有する第 1の耐熱性無機接着剤 142及び 第 1の平均粒径よりも大きな第 2の平均粒径をもった多数のセラミックス粒子を含有す る第 2の耐熱性無機接着剤 144を準備する耐熱性無機接着剤準備工程と、成型金 型の成型面に発生したクラック 122c, 132cの内部に、第 1の耐熱性無機接着剤 14 2及び第 2の耐熱性無機接着剤 144をこの順序で充填する耐熱性無機接着剤充填 工程とをこの順序で含む成型金型の補修方法である。  The method for repairing a molding die according to Embodiment 3 includes a first heat-resistant inorganic adhesive 142 containing a number of ceramic particles having a first average particle diameter as the heat-resistant inorganic adhesive, and the first average Preparing a second heat-resistant inorganic adhesive 144 containing a number of ceramic particles having a second average particle size larger than the particle size, and preparing a molding surface of the molding die. Molding including a heat-resistant inorganic adhesive filling step in which the first heat-resistant inorganic adhesive 14 2 and the second heat-resistant inorganic adhesive 144 are filled in this order inside the cracks 122c and 132c that have occurred. This is a mold repair method.
[0084] 実施形態 3に係る成型金型の補修方法においては、図 6に示すように、クラック 122 c, 132cの内部における底部分には第 1の耐熱性無機接着剤 142が主として充填さ れること〖こなる。このため、実施形態 3に係る成型金型の補修方法によれば、クラック 122c, 132cの内咅 こお ίナる表面咅分のみならずクラック 122c, 132cの内咅 こお ίナ る底部分を塞ぐことも容易になる。  In the molding die repair method according to Embodiment 3, as shown in FIG. 6, the first heat-resistant inorganic adhesive 142 is mainly filled in the bottom portion inside the cracks 122 c and 132 c. That's true. Therefore, according to the method for repairing the molding die according to the third embodiment, not only the inner surface of the crack 122c and 132c but also the bottom portion of the inner surface of the crack 122c and 132c. It is also easy to block.
[0085] また、実施形態 3に係る成型金型の補修方法においては、図 6に示すように、クラッ ク 122c, 132cの内部における底部分を除く部分には第 2の耐熱性無機接着剤 144 が主として充填されることになる。このため、実施形態 3に係る成型金型の補修方法 によれば、クラック 122c, 132cの内部に充填された耐熱性無機接着剤 144の機械 的強度を十分に高くすることが可能になる。  [0085] In addition, in the method for repairing a molding die according to Embodiment 3, as shown in Fig. 6, the second heat-resistant inorganic adhesive 144 is provided in the portions other than the bottom portion in the cracks 122c and 132c. Will be filled mainly. Therefore, according to the method for repairing a molding die according to the third embodiment, the mechanical strength of the heat-resistant inorganic adhesive 144 filled in the cracks 122c and 132c can be sufficiently increased.
[0086] 〔実施形態 4〕  [0086] [Embodiment 4]
図 7は、実施形態 4に係る成型金型の補修方法を説明するために模式的に示す図 である。 実施形態 4に係る成型金型の補修方法は、耐熱性無機接着剤として、第 1の平均 粒径をもった多数のセラミックス粒子を含有する第 1の耐熱性無機接着剤 142、第 1 の平均粒径よりも大きな第 2の平均粒径をもった多数のセラミックス粒子を含有する 第 2の耐熱性無機接着剤 144及び第 2の平均粒径よりも小さな第 3の平均粒径をもつ た多数のセラミックス粒子を含有する第 3の耐熱性無機接着剤 146を準備する耐熱 性無機接着剤準備工程と、成型金型の成型面に発生したクラック 122d, 132dの内 部に、第 1の耐熱性無機接着剤 142、第 2の耐熱性無機接着剤 144及び第 3の耐熱 性無機接着剤 146をこの順序で充填する耐熱性無機接着剤充填工程とをこの順序 で含む成型金型の補修方法である。 FIG. 7 is a diagram schematically illustrating a method for repairing a molding die according to the fourth embodiment. The method for repairing a molding die according to Embodiment 4 includes a first heat-resistant inorganic adhesive 142 containing a number of ceramic particles having a first average particle diameter as the heat-resistant inorganic adhesive, the first average A second heat-resistant inorganic adhesive 144 containing a number of ceramic particles with a second average particle size larger than the particle size and a number with a third average particle size smaller than the second average particle size Prepare the third heat-resistant inorganic adhesive 146 containing the ceramic particles of the heat-resistant inorganic adhesive preparation process and the first heat-resistant inside the cracks 122d and 132d generated on the molding surface of the mold A method for repairing a molding die including an inorganic adhesive 142, a second heat resistant inorganic adhesive 144, and a third heat resistant inorganic adhesive 146 in this order, and a heat resistant inorganic adhesive filling step. is there.
[0087] 実施形態 4に係る成型金型の補修方法においては、図 7に示すように、クラック 122 d, 132dの内部における底部分には第 1の耐熱性無機接着剤 142が主として充填さ れること〖こなる。このため、実施形態 4に係る成型金型の補修方法によれば、クラック 122d, 132dの内咅 こお ίナる表面咅分のみならずクラック 122d, 132dの内咅 こお ける底部分を塞ぐことも容易になる。  In the molding die repair method according to Embodiment 4, as shown in FIG. 7, the first heat-resistant inorganic adhesive 142 is mainly filled in the bottom portion inside the cracks 122 d and 132 d. That's true. For this reason, according to the method for repairing the molding die according to the fourth embodiment, not only the inner surface of the crack 122d and 132d but also the bottom portion of the inner surface of the crack 122d and 132d is blocked. It becomes easy.
[0088] また、実施形態 4に係る成型金型の補修方法においては、図 7に示すように、クラッ ク 122d, 132dの内部における表面部分及び底部分を除く部分には第 2の耐熱性無 機接着剤 144が主として充填されることになる。このため、実施形態 4に係る成型金 型の補修方法によれば、クラック 122d, 132dの内部に充填された耐熱性無機接着 剤 144の機械的強度を十分に高くすることが可能になる。  [0088] In addition, in the method for repairing a molding die according to Embodiment 4, as shown in FIG. The machine adhesive 144 will be mainly filled. For this reason, according to the repair method for the molding die according to the fourth embodiment, the mechanical strength of the heat-resistant inorganic adhesive 144 filled in the cracks 122d and 132d can be sufficiently increased.
[0089] さらにまた、実施形態 4に係る成型金型の補修方法においては、図 7に示すように、 クラック 122d, 132dの内部における表面部分には第 3の耐熱性無機接着剤 146が 主として充填されることになる。このため、実施形態 4に係る成型金型の補修方法によ れば、補修後の成型金型の表面を十分に平滑な面とすることが可能になる。  [0089] Furthermore, in the molding die repair method according to Embodiment 4, as shown in Fig. 7, the surface portion inside the cracks 122d, 132d is mainly filled with the third heat-resistant inorganic adhesive 146. Will be. For this reason, according to the method for repairing a molding die according to Embodiment 4, the surface of the molding die after the repair can be made sufficiently smooth.
[0090] 以上、本発明の成型金型の補修方法並びに成型金型及び成型製品を上記の各 実施形態に基づいて説明したが、本発明は上記の各実施形態に限られるものでは なぐその要旨を逸脱しな 、範囲にぉ 、て種々の態様にぉ 、て実施することが可能 であり、例えば次のような変形も可能である。  As described above, the molding die repair method, the molding die, and the molded product of the present invention have been described based on the above embodiments, but the present invention is not limited to each of the above embodiments. Without departing from the scope of the present invention, the present invention can be carried out in various modes without departing from the scope, and for example, the following modifications are possible.
[0091] (1)上記各実施形態においては、本発明の成型金型の補修方法を、アルミニウム铸 造用のダイカスト成型用の成型金型に適用した場合を示して！/ヽるが、本発明はこれ に限定されるものではない。本発明の成型金型の補修方法は、亜鉛铸造用、マグネ シゥム铸造用、その他のダイカスト成型用の成型金型に適用することもできる。また、 本発明の成型金型の補修方法は、各種ガラス製品成型用の成型金型、各種ゴム製 品成型用の成型金型、各種榭脂製品成型用の成型金型、その他の製品成型用の 成型金型に適用することもできる。 (1) In each of the above embodiments, the method for repairing a molding die of the present invention is an aluminum Show the case of applying to a die for molding die casting! However, the present invention is not limited to this. The method for repairing a molding die of the present invention can also be applied to molding die for zinc casting, forging magnesium, and other die casting molding. The molding die repair method of the present invention includes molding dies for molding various glass products, molding dies for molding various rubber products, molding dies for molding various resin products, and other product molding. It can also be applied to other molds.
[0092] (2)上記各実施形態にお!ヽては、耐熱性無機接着剤として、東亞合成株式会社のァ ロンセラミック Cを用いている力 本発明はこれに限定されるものではない。他の耐熱 性無機接着剤を用いることもできるし、導電性微粒子を含む耐熱性無機接着剤を用 いることちでさる。 [0092] (2) In each of the above-described embodiments, the force using Aron Ceramic C of Toagosei Co., Ltd. as the heat-resistant inorganic adhesive is not limited to this. Other heat-resistant inorganic adhesives can be used, or a heat-resistant inorganic adhesive containing conductive fine particles can be used.
[0093] (3)上記実施形態においては、耐熱性無機接着剤充填工程を行うのに先立って、ク ラックの内部を強アルカリ性水溶液で洗浄する工程を行っている力 本発明はこれに 限定されるものではない。強アルカリ性水溶液で洗浄する工程を行わないで、耐熱 性無機接着剤を充填することもできる。  [0093] (3) In the above embodiment, the force of performing the step of washing the interior of the crack with a strong alkaline aqueous solution prior to performing the heat-resistant inorganic adhesive filling step is limited to this. It is not something. The heat-resistant inorganic adhesive can be filled without performing the step of washing with a strong alkaline aqueous solution.

Claims

請求の範囲 The scope of the claims
[1] 成型金型の成型面に発生したクラックの内部に耐熱性無機接着剤を充填する耐熱 性無機接着剤充填工程を含むことを特徴とする成型金型の補修方法。  [1] A method for repairing a mold, comprising a heat-resistant inorganic adhesive filling step of filling a heat-resistant inorganic adhesive inside a crack generated on a molding surface of the mold.
[2] 請求項 1に記載の成型金型の補修方法にお!、て、  [2] The method for repairing the molding die according to claim 1!
前記耐熱性無機接着剤として、第 1の平均粒径をもった多数のセラミックス粒子を 含有する第 1の耐熱性無機接着剤及び前記第 1の平均粒径よりも大きな第 2の平均 粒径をもった多数のセラミックス粒子を含有する第 2の耐熱性無機接着剤を準備する 耐熱性無機接着剤準備工程をさらに含み、  As the heat-resistant inorganic adhesive, a first heat-resistant inorganic adhesive containing a large number of ceramic particles having a first average particle diameter and a second average particle diameter larger than the first average particle diameter Preparing a second heat-resistant inorganic adhesive containing a large number of ceramic particles having a heat-resistant inorganic adhesive preparing step;
前記耐熱性無機接着剤充填工程にお!ヽては、成型金型の成型面に発生したクラッ クの内部に、前記第 1の耐熱性無機接着剤及び前記第 2の耐熱性無機接着剤をこ の順序で充填することを特徴とする成型金型の補修方法。  In the heat-resistant inorganic adhesive filling step, the first heat-resistant inorganic adhesive and the second heat-resistant inorganic adhesive are placed inside the crack generated on the molding surface of the molding die. A method for repairing a molding die characterized by filling in this order.
[3] 請求項 1に記載の成型金型の補修方法にお!、て、 [3] The method for repairing the molding die according to claim 1!
前記耐熱性無機接着剤として、第 1の平均粒径をもった多数のセラミックス粒子を 含有する第 1の耐熱性無機接着剤、前記第 1の平均粒径よりも大きな第 2の平均粒 径をもった多数のセラミックス粒子を含有する第 2の耐熱性無機接着剤及び前記第 2 の平均粒径よりも小さな第 3の平均粒径をもった多数のセラミックス粒子を含有する第 3の耐熱性無機接着剤を準備する耐熱性無機接着剤準備工程をさらに含み、 前記耐熱性無機接着剤充填工程にお!ヽては、成型金型の成型面に発生したクラッ クの内部に、前記第 1の耐熱性無機接着剤、前記第 2の耐熱性無機接着剤及び前 記第 3の耐熱性無機接着剤をこの順序で充填することを特徴とする成型金型の補修 方法。  As the heat resistant inorganic adhesive, a first heat resistant inorganic adhesive containing a large number of ceramic particles having a first average particle diameter, a second average particle diameter larger than the first average particle diameter. A second heat-resistant inorganic adhesive containing a large number of ceramic particles and a third heat-resistant inorganic containing a large number of ceramic particles having a third average particle size smaller than the second average particle size A heat-resistant inorganic adhesive preparation step for preparing an adhesive; and in the heat-resistant inorganic adhesive filling step, the first heat treatment is performed inside the crack generated on the molding surface of the molding die. A method for repairing a mold, comprising filling a heat-resistant inorganic adhesive, the second heat-resistant inorganic adhesive, and the third heat-resistant inorganic adhesive in this order.
[4] 請求項 1一 3のいずれかに記載の成型金型の補修方法において、  [4] In the repair method of the molding die according to any one of claims 1 to 3,
前記耐熱性無機接着剤は、熱硬化性無機接着剤であることを特徴とする成型金型 の補修方法。  The method for repairing a mold, wherein the heat-resistant inorganic adhesive is a thermosetting inorganic adhesive.
[5] 請求項 1一 4のいずれかに記載の成型金型の補修方法において、  [5] In the repair method of the molding die according to any one of claims 1 to 4,
前記耐熱性無機接着剤の線膨張率と前記成型金型の線膨張率との差を、 4 X 10— 6Z°C以下とすることを特徴とする成型金型の補修方法。  A method for repairing a molding die, characterized in that a difference between a linear expansion coefficient of the heat-resistant inorganic adhesive and a linear expansion coefficient of the molding die is 4 X 10-6Z ° C or less.
[6] 請求項 1一 5のいずれかに記載の成型金型の補修方法において、 前記耐熱性無機接着剤には、導電性微粒子が含まれていることを特徴とする成型 金型の補修方法。 [6] In the repair method of the molding die according to any one of claims 1 to 5, A method for repairing a molding die, wherein the heat-resistant inorganic adhesive contains conductive fine particles.
[7] 請求項 1一 6のいずれかに記載の成型金型の補修方法において、  [7] In the repair method of the molding die according to any one of claims 1 to 6,
前記耐熱性無機接着剤充填工程を行うのに先立って、前記耐熱性無機接着剤を 充填しょうとするクラックの内部を有機溶剤で洗浄する工程を行うことを特徴とする成 型金型の補修方法。  Prior to performing the heat-resistant inorganic adhesive filling step, a method of repairing a mold, comprising performing a step of washing the inside of a crack to be filled with the heat-resistant inorganic adhesive with an organic solvent .
[8] 請求項 1一 6のいずれかに記載の成型金型の補修方法において、 [8] In the repair method of the molding die according to any one of claims 1 to 6,
前記耐熱性無機接着剤充填工程を行うのに先立って、前記耐熱性無機接着剤を 充填しょうとするクラックの内部を強アルカリ性水溶液で洗浄する工程と、前記耐熱性 無機接着剤を充填しょうとするクラックの内部を有機溶剤で洗浄する工程とを行うこと を特徴とする成型金型の補修方法。  Prior to performing the heat-resistant inorganic adhesive filling step, the step of washing the inside of the crack to be filled with the heat-resistant inorganic adhesive with a strong alkaline aqueous solution and the step of filling the heat-resistant inorganic adhesive are attempted. A method of repairing a molding die, comprising: a step of cleaning the inside of the crack with an organic solvent.
[9] 請求項 1一 8のいずれかに記載の成型金型の補修方法において、 [9] In the method for repairing a molding die according to any one of claims 1 to 8,
前記成型金型は、ダイカスト成型用の成型金型であることを特徴とする成型金型の 補修方法。  The method for repairing a molding die, wherein the molding die is a die for die casting.
[10] 請求項 1一 9のいずれかに記載の成型金型の補修方法によって補修された成型金 型。  [10] A molding die repaired by the molding die repair method according to any one of claims 1 to 9.
[11] 請求項 10に記載の成型金型を用いて製造された成型製品。  [11] A molded product produced using the molding die according to claim 10.
PCT/JP2004/018415 2004-12-09 2004-12-09 Mold repairing method, mold and molded product WO2006061907A1 (en)

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