CN100351027C - Quick, intelligent and environment-friendly casting mould and method for manufacturing the same - Google Patents
Quick, intelligent and environment-friendly casting mould and method for manufacturing the same Download PDFInfo
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- CN100351027C CN100351027C CNB2006100099775A CN200610009977A CN100351027C CN 100351027 C CN100351027 C CN 100351027C CN B2006100099775 A CNB2006100099775 A CN B2006100099775A CN 200610009977 A CN200610009977 A CN 200610009977A CN 100351027 C CN100351027 C CN 100351027C
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Abstract
The present invention discloses a quick and intelligent environment protecting casting mould and a manufacturing method thereof, which relates to a casting mould for forming liquid metal and a manufacturing method. The present invention provides a quick and intelligent environment protecting mould in view of the abuses of incapability of flexibly controlling metal solidifying speed, poor surface finish and large powder dust and environmental pollution of sand mould manufacturing methods. A sand box (1) of the mould is filled with heat conducting wire (2) which is parallel with edges, and the end heads of the heat conducting wire (2) form shapes which are consistent with the shape of a casting to be formed. The heat conducting wire (2) needs to be parallelly placed in a direction which is in parallel with the edges in the sand box (1) during the preparing process of the casting mould, and the end heads of the heat conducting wire (2) form shapes which are consistent with the shape of the casting. The casting mould of the present invention can regulate heat conducting rate according to the solidifying needs of different positions of the casting, and castings with clear surfaces can be obtained. The method has the advantages of short manufacturing cycle, low cost, no pollution and capability of reutilization, and is favorable to popularization and application.
Description
Technical field
The present invention relates to a kind of casting mold and manufacture method thereof of liquid metal shaping usefulness.
Background technology
It is a kind of method of metal forming that liquid metal is shaped, and has a long history.Along with continuous progress in science and technology, significant variation has also taken place in the liquid metal manufacturing process, develops into permanent mold casting, the casting of magnetic ball, freezing casting etc. from sand casting, all reforms on formative method still is Modeling Material.Critical component-casting mold that decision is shaped becomes the emphasis and the focus of research always, is subjected to various countries scholar's great attention.The effect of casting mold mainly is the shaping effect, is also undertaking the effect of transmitting heat simultaneously.But, an open question has 2 points always for many years, the one, mold material, at present, the main formative method of undertaking castings production still is sand casting, although very big variation has taken place formative method, for example the seventies, high pressure multiple contact Modeling Technology was used in exploitation, the injection molding technology of the eighties, the static pressure moulding that the nineties occurs.The formative method development is very rapid, yet Modeling Material correspondingly but changes not quite, particularly enters 21 century, and Modeling Material still uses sand casting since time immemorial.For example, though the foundry of the Chinese first automotive casting factory has used modern foundry production line, yet, what Modeling Material used but is common sand mold, the dust in workshop is very big aborning on the one hand, has brought great harm for the workman of workshop, on the other hand, the waste molding sand in foundry every year reaches tons up to a hundred, the any value of utilizing again of these molding sand does not all have, can only landfill, therefore, cause the large tracts of land desertification, bring great harm to environment.And, in actual use, the sand mold heat transfer speed is slow and the each point heat transfer rate is identical, be difficult to realize the foundry goods of different setting rates for needing each point to have, the inner surface fineness of sand mold is low simultaneously, the cast(ing) surface fineness of preparation is poor, directly influences product quality, so mold material becomes the bottleneck factor that restriction obtains high quality casting.Solve the problem of sand casting, become one of focus and emphasis problem of founder author's research in the world wide.So the researcher has successively developed metal mold, magnetic ball casting mold and freezing casting mold, solved the problem of sand casting environmental pollution in varying degrees.Yet, because these methods of complex process all do not have to play a role in actual production.
Sand mold is being undertaken the moulding task of finishing on the one hand, also to undertake the effect of transmitting heat on the other hand, desirable casting mold is a metal mold, and is still, the same with sand mold, because the casting mold material each point that uses is identical, therefore, still dumb aspect solidifying in control, sometimes, in order to realize that consecutive solidification also will cooperate technological measure to realize that this has just increased difficulty to practical application.The modern production requirement cycle is short, cost is low, how to produce qualified casting mold at short notice at low cost, making to casting mold is had higher requirement, though adopt method precision height such as traditional machining, numer centre processing, but cost height and long processing time, do not conform to the theory that shortens process time, cut down finished cost, suddenly wait to occur making fast, cheaply the casting mold new technology.
Summary of the invention
There is the problem of the cast(ing) surface fineness difference of the setting rate that can not control metal flexibly and preparation in the casting mold that uses at present liquid towards metal forming as sand mold, at the method for present manufacturing sand mold have that dust is big, the drawback of environmental pollution, complex process, the invention provides and a kind ofly can need regulate and can obtain the casting mold of any surface finish foundry goods at solidifying of foundry goods diverse location, provide simultaneously a kind of manufacturing cycle short, cost is low, the manufacture method of the pollution-free and recyclable casting mold that utilizes again.
A kind of casting mold, it comprises sandbox 1, and sandbox 1 has four frames, is full of the heat conductive filament parallel with frame 2 in the described sandbox 1, and all heat conductive filaments' 2 termination is formed and is desired the consistent shape of mould casting profile.
A kind of manufacture method of casting mold, the preparation process of casting mold is as follows: the sandbox 1 that is provided with four frames, the heat conductive filament 2 of installation and frame parallel direction laid parallel in sandbox 1 forms with the corresponding to shape of foundry goods profile the termination that is in the heat conductive filament 2 in the sandbox 1 and gets final product.
The present invention replaces traditional molding sand with metal or nonmetallic heat conductive filament, under the constraint of sandbox, form casting mold, heat conductive filament in the sandbox can adopt different materials to make, can realize different cooling capacities to different parts by the casting mold that the heat conductive filament of the hot rerum natura of difference forms, thereby realize consecutive solidification or solidify simultaneously, metal heat-conducting silk casting mold also has chilling action, can obtain to organize tiny equiax crystal, therefore can obtain high-quality foundry goods.
Casting mold of the present invention is a kind of quick casting mold: the common metal casting mold process-cycle is longer, and adopts the method for the invention and material, and average skilled worker just can be produced high-quality casting mold in 20-40 minute.The quality of mo(U)ld face depends on heat conductive filament's diameter, and the more little then cast(ing) surface of heat conductive filament's diameter fineness is high more, can choose the wire or the nonmetallic heat conductive filament of different-diameter during making as requested.
Casting mold of the present invention is a kind of intelligent casting mold: common casting mold is difficult to the control setting temperature, generally needs the adopting process measure to solve, and is very complicated.Casting mold of the present invention, can be under the guidance of numerical simulation, by metal or the nonmetallic heat conductive filament who chooses different thermal conductive properties, because the heat conductivility difference of same casting mold different parts, therefore, can realize control, realize consecutive solidification casting solidification, therefore, this casting mold has to a certain degree intelligent.
Casting mold of the present invention is a kind of environment-friendly casting mould: common casting mold adopts molding sand as Modeling Material more, the workshop dust is very big during moulding, give that the workman is healthy to bring great harm, and can only landfill to the antiquated sand that produced, make desertification, reduced cultivated area, brought great destruction to environment.Casting mold of the present invention only needs wire or nonmetal wire put in order in preparation process and gets final product, harmless, the non-environmental-pollution noiseless, it is low to process fast cost, can also melt back reprocessing for metal mold utilizes, also can select reuse according to concrete material for nonmetal casting mold, therefore casting mold of the present invention has fundamentally solved the drawback of existing sand mold breakdown environment, is beneficial to and applies.
Description of drawings
Fig. 1 is a casting mold structure schematic diagram of the present invention, and Fig. 2 is the specific embodiment three described structural representations, and Fig. 3 is the A-A cutaway view of Fig. 2,
The specific embodiment
The specific embodiment one: present embodiment is a kind of casting mold, and it comprises sandbox 1, and with reference to Fig. 1, sandbox 1 has four frames, is full of the heat conductive filament parallel with frame 2 in the described sandbox 1, and all heat conductive filaments' 2 termination is formed and desired the consistent shape of mould casting profile.
The preparation process of casting mold is as follows: be provided with the sandbox 1 of four frames, the heat conductive filament 2 of installation and frame parallel direction laid parallel in sandbox 1 forms with the corresponding to shape of foundry goods profile the termination that is in the heat conductive filament 2 in the sandbox 1 and gets final product.
The specific embodiment two: present embodiment and the specific embodiment one difference are, a frame of described sandbox 1 is ambulatory splint 1-1, with reference to Fig. 2, Fig. 3, flexibly connect between described ambulatory splint 1-1 and adjacent two frames, and fix by fixture 5.The effect of ambulatory splint is to make between the interior heat conductive filament of sandbox and more closely arranges, and better guarantees the smooth shaping of foundry goods and the fineness requirement of cast(ing) surface.
The specific embodiment three: the described preparation process of present embodiment is as follows successively, with reference to Fig. 2, Fig. 3:
A. at first produce foundry goods model 3 and according to the desire mould casting determine heat conductive filament 2 material, heat conductive filament 2 can be in wire, alloy silk and the nonmetal wire any one, two or three.The model of foundry goods can adopt quick original shape manufacturing system or other modelling technology manufacturing, and determine heat conductive filament's material according to numerical simulation result, the heat conductive filament who needs Quench or slow cooling is arranged in place in special cooling of needs or insulation, can adopt wire or the alloy silk of making by the lower material of thermal conductivity factor for the position that needs slow cooling, for example, the heat conductive filament that makes of the nickel alloy that thermal conductivity factor is lower, titanium alloy or tungsten alloy material; The heat conductive filament who adopts the bigger material of thermal conductivity factor such as copper, graphite to make for the position that needs Quench;
C. heat conductive filament's 2 vertical pendulums are placed on model 3 and the template 4, heat conductive filament 2 fills up whole sandbox 1;
D. mobile ambulatory splint 1-1 clamps heat conductive filament 2;
E. the part with the high protruding injustice in model 3 tops cuts away, and then model 3 is taken out, and promptly obtains described metal mold.
Because the heat conductive filament of different parts can adopt different materials, solidify the purpose of order so can realize intelligent control, also have, owing to all be parallel between the heat conductive filament, so the space between the wire is bigger, the gas permeability of casting mold is fine.When reality is used, can leak to avoid metal liquid, but this not influence the effect of casting mold of the present invention at casting mold inner surface brush system one coating.
During actual the use; ambulatory splint can be connected with frame and fix by any way; as long as can realize the relative displacement between ambulatory splint and the adjacent frame and finally carry out relative fixed, all within protection scope of the present invention, and be not limited to a kind of mode that the present invention explains.
In addition; heat conductive filament of the present invention is not limited to cited nickel alloy wire, titanium alloy wire, tungsten alloy filament, copper wire, graphite silk; can select to have other wires, alloy silk and the nonmetal wire of corresponding thermal conductivity factor in actual use as required, all within protection scope of the present invention.Described heat conductive filament also can select the silk of major diameter or minor diameter as required, and the cross section of silk can be circle, rectangle or other rules, irregular cross section, all within protection scope of the present invention.
Claims (6)
1. casting mold, it comprises sandbox (1), it is characterized in that sandbox (1) has four frames, is full of the heat conductive filament parallel with frame (2) in the described sandbox (1), all heat conductive filaments' (2) termination is formed and the consistent shape of desire mould casting profile.
2. a kind of casting mold according to claim 1, it is characterized in that heat conductive filament (2) in the described sandbox (1) be in wire, alloy silk and the nonmetal wire any one, two or three.
3. a kind of casting mold according to claim 1 and 2, a frame that it is characterized in that described sandbox (1) is ambulatory splint (1-1), flexibly connects between described ambulatory splint (1-1) and adjacent two frames, and fixes by fixture (5).
4. the manufacture method of a casting mold, the preparation process that it is characterized in that casting mold is as follows: the sandbox (1) that is provided with four frames, the heat conductive filament (2) of installation and frame parallel direction laid parallel in sandbox (1) forms with the corresponding to shape of foundry goods profile the termination that is in the heat conductive filament (2) in the sandbox (1) and gets final product.
5. the manufacture method of a kind of casting mold according to claim 4 is characterized in that preparation process is as follows successively:
A. at first produce the model (3) of foundry goods and determine the material of heat conductive filament (2) according to the desire mould casting;
B. cast model (3) is placed on the template (4), around model (3), puts the sandbox (1) that has ambulatory splint (1-1) again;
C. heat conductive filament (2) vertical pendulum is placed on model (3) and the template (4), heat conductive filament (2) fills up whole sandbox (1);
D. mobile ambulatory splint (1-1) clamps heat conductive filament (2);
E. the part with the high protruding injustice in model (3) top cuts away, and then model (3) is taken out, and promptly obtains described metal mold.
6. according to the manufacture method of claim 4 or 5 described a kind of casting molds, it is characterized in that, adopt nickel alloy, titanium alloy or tungsten alloy material to make heat conductive filament (2) for the position that needs slow cooling according to the desire mould casting; Adopt copper or graphite material to make heat conductive filament (2) for the position that needs Quench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100099775A CN100351027C (en) | 2006-04-28 | 2006-04-28 | Quick, intelligent and environment-friendly casting mould and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100099775A CN100351027C (en) | 2006-04-28 | 2006-04-28 | Quick, intelligent and environment-friendly casting mould and method for manufacturing the same |
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| Publication Number | Publication Date |
|---|---|
| CN1843658A CN1843658A (en) | 2006-10-11 |
| CN100351027C true CN100351027C (en) | 2007-11-28 |
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| CNB2006100099775A Expired - Fee Related CN100351027C (en) | 2006-04-28 | 2006-04-28 | Quick, intelligent and environment-friendly casting mould and method for manufacturing the same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2114933A (en) * | 1981-08-12 | 1983-09-01 | United Technologies Corp | Mold box with means to support heater wires for making ceramic dies |
| CN86207887U (en) * | 1986-10-29 | 1987-09-02 | 桂林风动工具厂 | Squeese flask |
| SU1763078A2 (en) * | 1990-07-11 | 1992-09-23 | Южный Филиал Всесоюзного Научно-Исследовательского Института Судового Машиностроения "Сириус" | Vacuum molding equipment |
| CN2225915Y (en) * | 1994-05-12 | 1996-05-01 | 北京科技大学 | Vacuum seal moulding sand box with integrated air-extracting unit and box band |
| CN2356780Y (en) * | 1998-10-05 | 2000-01-05 | 清华大学 | Nested movable sandbox casting device |
-
2006
- 2006-04-28 CN CNB2006100099775A patent/CN100351027C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2114933A (en) * | 1981-08-12 | 1983-09-01 | United Technologies Corp | Mold box with means to support heater wires for making ceramic dies |
| CN86207887U (en) * | 1986-10-29 | 1987-09-02 | 桂林风动工具厂 | Squeese flask |
| SU1763078A2 (en) * | 1990-07-11 | 1992-09-23 | Южный Филиал Всесоюзного Научно-Исследовательского Института Судового Машиностроения "Сириус" | Vacuum molding equipment |
| CN2225915Y (en) * | 1994-05-12 | 1996-05-01 | 北京科技大学 | Vacuum seal moulding sand box with integrated air-extracting unit and box band |
| CN2356780Y (en) * | 1998-10-05 | 2000-01-05 | 清华大学 | Nested movable sandbox casting device |
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| Publication number | Publication date |
|---|---|
| CN1843658A (en) | 2006-10-11 |
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