CN100391649C - Member for producing castings - Google Patents
Member for producing castings Download PDFInfo
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- CN100391649C CN100391649C CNB2003801031933A CN200380103193A CN100391649C CN 100391649 C CN100391649 C CN 100391649C CN B2003801031933 A CNB2003801031933 A CN B2003801031933A CN 200380103193 A CN200380103193 A CN 200380103193A CN 100391649 C CN100391649 C CN 100391649C
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- producing castings
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Abstract
A part for casting obtained by converting base paper for paper tubing into a tube and containing an organic fiber, an inorganic fiber, and a binder. The part is preferably obtained by winding the base paper into tubing. The part preferably contains 10 to 70 parts by weight of the organic fiber, 1 to 80 parts by weight of the inorganic fiber, 10 to 85 parts by weight of the binder. The organic fiber is preferably pulp fiber.
Description
Technical field
The member for producing castings and the manufacture method thereof that the present invention relates to paper tube is configured as tubulose with body paper and make, and use this member for producing castings to make the method for foundry goods.
Background technology
When making foundry goods, usually use foundry sand to form mold (having core as required) with die cavity, form simultaneously inlet, cast gate, runner and ingate to this die cavity supplying melting metal (below, they are called running gate system), and further form steam vent, rising head, gas outlet.Such running gate system, steam vent, rising head, gas outlet form with mold with foundry sand usually, perhaps use the running gate system component parts that is made of refractory materials such as pottery, bricks to form running gate system.
Under the situation that above-mentioned running gate system etc. and mold are formed, be difficult to make the configuration of running gate system complicated, be easy to sneak into foundry sand to motlten metal.On the other hand, using under the situation of the running gate system constitute by aforementioned refractory material etc., when motlten metal contacts aforementioned running gate system etc., reducing temperature of melt metal easily.In addition, when forming running gate system etc., must cut off refractory material, and twine the refractory material that cuts off so that they are linked together, operate pretty troublesome with adhesive tape with high speed cutters such as diamond cutters.In addition, after the cast, have following problem: because thermal shock etc. cause breakages such as running gate system, produce a large amount of trade wastes, bothersome during its waste treatment.Like this, the running gate system operation that is made of refractory material is inconvenient in a word.
As the technology that solves this problem, known have a for example real technology of opening flat 1-60742 communique record of Japanese patent application.This technology is to use by organic or inorganic fiber and organic or inorganic adhesive mixes the employed refractory material of component parts that heat-insulating material that the slurry shaping that forms obtains replaces aforementioned running gate system.
Yet the running gate system etc. that has made up organic fiber and organic bond has following problem: owing to thermal decomposition produces bigger contraction, spill motlten metal from this running gate system etc. when supplying melting metal.In addition, the aforementioned heat-insulating material of combination inorfil and inorganic bond, owing to be difficult to be configured as stereoscopic-state such as hollow, so use that this heat-insulating material can not form corresponding to the running gate system of various die cavity shapes etc.
On the other hand, known a kind of casting paper core, it is to mix inorganic powder and/or inorfil in cellulose fibre, so that the consumption of cellulose fibre reduces.It is generally acknowledged, contraction when this casting can reduce drying with the paper core, the gas that produces by cellulose fibre when suppressing casting and the generation of tarry macromolecular compound, consequently, casting flaw is prevented from, and casting operation is improved (for example with reference to the flat 9-253792 communique of Japanese Patent Application Laid-Open).
Yet, because the casting that above-mentioned document is put down in writing does not contain adhesive with the paper core, so can not be applicable to and the corresponding running gate system of various die cavity shapes.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of member for producing castings and manufacture method thereof, and use this member for producing castings to make the method for foundry goods, this casting can suppress owing to thermal contraction, operability excellence that thermal decomposition produces with parts, and can form and corresponding running gate system of various die cavity shapes etc.
The present invention is by providing following member for producing castings, thereby realize aforementioned purpose, this member for producing castings is paper tube to be configured as tubulose with body paper and the member for producing castings made, it contains organic fiber, carbon fiber and adhesive, and the content with respect to described organic fiber, described carbon fiber and described adhesive amounts to 100 weight portions, contains 7～80 weight portion carbon fibers.
In addition, the invention provides a kind of manufacture method of having used the foundry goods of the member for producing castings that contains organic fiber, carbon fiber and adhesive, wherein, aforementioned member for producing castings is configured in the foundry sand.
In addition, the invention provides a kind of manufacture method of aforementioned member for producing castings of the present invention, it has following operation: by the raw material slurry papermaking that contains aforementioned organic fiber and aforementioned carbon fiber at least is the operation of aforementioned paper tube with body paper; The aforementioned paper tube that is obtained by papermaking is configured as the operation of paper tube with body paper; With make the aforementioned paper tube obtain of being shaped contain the operation of aforementioned adhesion agent.
Description of drawings
Fig. 1 represents member for producing castings of the present invention is applied to the schematic diagram of cast gate with an embodiment of runner.
The stereogram of the state that the runner that Fig. 2 schematically represents embodiment that will be identical with above-mentioned Fig. 1 disposes with other member for producing castings such as molds.
The specific embodiment
Below, based on the preferred embodiment of the invention, the present invention will be described.
Member for producing castings of the present invention is paper tube to be configured as tubulose with body paper and the member for producing castings made, and it contains organic fiber, inorfil and adhesive.Member for producing castings of the present invention preferably is shaped with body paper by the coiling paper tube.When reeling, this paper tube can be overlapping with the part of body paper, also can be not overlapping.In addition, also many these paper tubes can be reeled overlappingly with body paper.When the foundry goods of making long tubular was made articles for use, preferably the paper tube with band shape was wound as helical form with body paper.Foundry goods of the present invention is made the articles for use paper tube of also can not reeling and is shaped with body paper, but for example with rectangular paper tube with body paper be rolled into cylindric, also 2 relative edge joints are closed and are shaped.If consider the intensity as member for producing castings, aforementioned paper tube is preferably 0.4～2mm with the thickness of body paper, is preferably 0.7～1.5mm especially.
Aforementioned organic fiber mainly becomes the skeleton of member for producing castings, and when casting, motlten metal can make the part or all of thermal decomposition of organic fiber, and after foundry goods was made, the part of thermal decomposition became the space.
As aforementioned organic fiber, except the paper fiber, can also list the synthetic fibers, regenerated fiber (for example, rayon fiber) of fibrillation etc., these fibers can use separately or mix and use two kinds or more kinds of.And, wherein, particularly from obtaining, reduce manufacturing expense easily and stably and, preferably using the paper fiber in the viewpoint that obtains enough intensity after the dehydration and after the drying.
For aforementioned paper fiber, except using wood pulp, can also use other non-wood pulp such as cotton pulp, linter pulp, bamboo and straw, and magma or old paper stock (recovery article) can be used or mix two kinds or more kinds of of uses separately.And, from viewpoints such as the easiness that obtains, stability, environmental protection, reduction manufacturing expense, preferred especially old paper stock.
If consider surface smoothing, the impact strength of the member for producing castings of shaping, uniformity of wall thickness etc., the average fiber length of aforementioned organic fiber is preferably 0.8～2.0mm, more preferably 0.9～1.8mm.
From as the shaping easiness of member for producing castings, guarantee intensity, reduce viewpoints such as gas generated that the content of the aforementioned organic fiber in the member for producing castings of the present invention is preferably 10～70 weight portions, more preferably 20～60 weight portions.In addition, in this manual, when being called weight portion, be meant that the total amount of relative organic fiber, inorfil and adhesive adds up to the value of 100 weight portions.
Aforementioned inorfil is the same with aforementioned organic fiber, mainly becomes the skeleton of member for producing castings, but when casting, also can not decompose or burn even be subjected to the heat of motlten metal, plays the effect of the original state that keeps member for producing castings.
For aforementioned inorfil, can list man-made mineral fibers such as carbon fiber, asbestos, ceramic fibre, natural mineral fiber etc., these fibers can use separately or mix and use two kinds or more kinds of.And, wherein, the carbonization owing to this organic bond during particularly from use organic bond adhesive makes the viewpoint of shrinking reduction, at high temperature also can keep high-intensity carbon fiber even preferably use, and, preferably use asbestos from reducing the viewpoint of manufacturing expense.
If the ease of processing that the drainability when considering the papermaking of guaranteeing paper tube usefulness body paper, paper tube are used body paper etc., the average fiber length of aforementioned inorfil is preferably 0.2～10mm, more preferably 0.5～8mm.
From guaranteeing the intensity as member for producing castings, paper tube that papermaking the obtains viewpoints such as ease of processing with body paper, the content of aforementioned inorfil is preferably 1～80 weight portion, more preferably 7～40 weight portions.
From as the shaping easiness of member for producing castings, guarantee viewpoints such as intensity, with respect to aforementioned organic fiber, the ratio of aforementioned inorfil (content of inorfil/organic fiber content) is in weight ratio, for example when inorfil is carbon fiber, be preferably 1～60, more preferably 2～30.When using asbestos as inorfil, described ratio is preferably 10～90, and more preferably 20～80.
As the aforementioned adhesion agent, can list organic bond described later and inorganic bond.They can use or mix use separately.
For aforementioned organic bond, it is the material that plays the effect of the aforementioned organic fiber that makes in the member for producing castings of the present invention and aforementioned inorfil combination, or play the intensity that improves member for producing castings of the present invention, the material of the effect of intensity that the heat generation carbonization by motlten metal when casting keeps member for producing castings etc.
As aforementioned organic bond, can list heat-curing resins such as phenolic resins, epoxy resin, furane resins.And, wherein, particularly less, be difficult to burning, the viewpoints such as carbon yield height after the thermal decomposition (carbonization), preferred phenolic resins from the generation of fuel gas.In addition, in this phenolic resins, preferably do not need curing agent and can contain the solvable type phenolic resins that is immersed in the member for producing castings of the present invention.
For aforementioned inorganic bond, it is the material that plays the effect of the aforementioned organic fiber that makes in the member for producing castings of the present invention and aforementioned inorfil combination, can thermal decomposition and suppress the material of effect of the generation of burning gases and flame even play when casting yet, or play the material etc. of the effect of the carburizing when preventing to cast.
As aforementioned inorganic bond, can list colloidal silica, obsidian, mullite, perlite, silester and waterglass etc. with SiO
2Compound for main component.And, wherein, preferably use colloidal silica particularly from using separately and easy viewpoint such as coating.In addition, from preventing the viewpoint of carburizing, especially preferably use obsidian.Aforementioned inorganic bond also can use separately or mix and use two kinds or more kinds of.
If consider that the content of aforementioned adhesion agent (solid state component) is preferably 10～85 weight portions, more preferably 20～80 weight portions as the guaranteeing of the intensity of member for producing castings, shaping easiness etc.
When using obsidian adhesive in addition as the aforementioned adhesion agent, the content of this adhesive in the member for producing castings of the present invention is preferably 10～70 weight portions, more preferably 20～50 weight portions.
In addition, when using obsidian, preferably all containing 20 weight portion obsidians at least in the adhesive as the aforementioned adhesion agent.Can also only use obsidian as the aforementioned adhesion agent.
In addition, the binder combination of two or more that can fusing point is different is used.Particularly, from guaranteeing to prevent to soak to the conformality of the member for producing castings of high temperature (during casting) with when making viewpoint such as carbon, preferably with low-melting adhesive and the use of dystectic binder combination by normal temperature (casting before).In this case,, can list clay, waterglass, obsidian etc.,, can list above-mentioned with SiO as dystectic adhesive as low-melting adhesive
2Compound, mullite, wollastonite, Al for main component
2O
3Deng.
In member for producing castings of the present invention, can add the paper strength strengthening material.By adding paper strength strengthening material, the swelling of this paper tube in the time of can reducing adhesive to the paper tube impregnation.
The addition of paper strength strengthening material be preferably aforementioned organic fiber weight 1～20%, be preferably 2～10% especially.
As the paper strength strengthening material, can list polyvinyl alcohol, carboxymethyl cellulose (CMC), sponge (polyamidoamine epichlorohydrin resin) etc.
In member for producing castings of the present invention, can further add other compositions such as agglutinant, coloring agent.
The thickness of aforementioned member for producing castings can suitably be set according to the place of its use, if but consider reduction as the guaranteeing of the guaranteeing of the intensity of member for producing castings, aeration, manufacturing expense etc., for example, the thickness of the part that contacts with motlten metal is preferably 0.2～2mm, more preferably 0.4～1.5mm.
From guaranteeing that the intensity aspect considers, the compressive strength under the state of aforementioned member for producing castings before being used to cast be preferably 10N or more than, more preferably 30N or more than.
The viewpoint of the gas that produces from the thermal decomposition of doing one's utmost to suppress owing to organic bond, the moisture content (weight moisture capacity) under the state of aforementioned member for producing castings before being used to cast be preferably 10% or below, more preferably 8% or below.
From guaranteeing viewpoints such as intensity, lightweight, ease of processing, the density of aforementioned member for producing castings is preferably 0.5g/cm
3Or more than, 0.6～1.2g/cm more preferably
3
Below, the manufacture method of aforementioned member for producing castings is described.
At first, be distributed in the dispersant of regulation by making aforementioned organic fiber, aforementioned inorfil and aforementioned adhesion agent, thus preparation raw material slurry.In addition, because paper tube is carried out papermaking with body paper, and after making its dehydration, drying, after perhaps further paper tube being configured as paper tube with body paper, by being contained, adhesive is dipped in this paper tube, can make this paper tube contain adhesive, add adhesive so also can omit in the raw material slurry as required.
As aforementioned dispersant, except water, plain boiled water, can list ethanol, methyl alcohol equal solvent etc.And, the wherein stability of the stability that is shaped from papermaking and dehydration, quality, reduction expense, viewpoint such as simple to operate, preferred water.
If consider the paper tube surface smoothing of body paper of manufacturing, the uniformity of wall thickness etc., in the aforementioned base materials slurry, aforementioned organic fiber is preferably 0.1～3 weight % with respect to the consumption of aforementioned dispersant, more preferably 0.5～2 weight %.
In the aforementioned base materials slurry, can add additives such as agglutinant, anticorrisive agent.
Then, use the aforementioned base materials slurry, papermaking is the paper tube body paper.
With the papermaking process of body paper, for example, can adopt papermaking process such as the cylinder mould machine that uses as papermaking mode continuously, fourdrinier machine, short net paper machine, two-wire (paper) machine for paper tube, and as the papermaking process such as write by hand method of batch-type papermaking process.
For after papermaking, aforementioned paper tube also can keep conformality and mechanical strength with body paper, and this paper tube is dewatered with body paper, preferably be dewatered to moisture content (weight moisture capacity, below identical) and be 70% or below, more preferably to 60% or below.Paper tube after papermaking is used in the dewatering of body paper, for example, except dewatering by suction, the dewaterings such as method of can adopting and blow the forced air dehydration method, using backer roll and increased pressure board pressurizing and dehydrating.
The aforementioned paper tube of dehydration is then transferred in the drying process with the body paper body,, can be used the method that in the past always is used for the drying of paper for drying.
Then, resulting paper tube is made the ribbon of a plurality of Racks with the body paper severing,, obtain the paper tube of sandwich construction again with they overlapping helical forms that is wound as.
As required, adhesive is partly or entirely contained in the paper tube that is dipped into gained.As containing this adhesive that is dipped in this paper tube, can list bakelite, colloidal silica, silester, waterglass etc.
So, after being shaped, make the adhesive impregnation, also can omit in the raw material slurry and add adhesive at paper tube.
Then, under set point of temperature, the heat drying paper tube, thus finish the manufacturing of paper tube.Can after the aforementioned adhesion agent being contained be dipped into dried paper tube, this paper tube be processed as paper tube with body paper with body paper.
Member for producing castings of the present invention, for example, embodiment that can be as shown in Figure 1 is such, as the cast gate runner.In Fig. 1, symbol 1 expression cast gate runner.
Then, based on the manufacture method of using aforementioned cast gate with the foundry goods of runner, the manufacture method of foundry goods of the present invention is described.
At first, as shown in Figure 2, will be by aforementioned cast gate runner 1, and running gate system runner such as inlet 2, runner (comprising bend pipe (L type pipe)) 3, ingate 4, steam vent runner 5, rising head (top and sidepiece) is with runner 6,7, and the gas outlet has the member for producing castings that the mold 9 of the die cavity corresponding with the foundry goods shape of products (not shown) constituted and is configured on the position of regulation with runner 8 with in inside.
Then, these member for producing castings are embedded in the foundry sand (not shown), will stipulate that by aforementioned running gate system the motlten metal of forming imports in the aforementioned die cavity of mold 9.At this moment, when containing aforementioned organic bond in member for producing castings, the heat by motlten metal is with this adhesive and the thermal decomposition simultaneously of aforementioned organic fiber and carbonization, but can not damage the intensity as member for producing castings.In addition, because aforementioned inorfil can suppress the thermal contraction of the member for producing castings that produces owing to this thermal decomposition, so can not produce slight crack in aforementioned member for producing castings, they can not flow in motlten metal yet, and, can not sneak into foundry sand etc. in the motlten metal yet.In addition, because the organic fiber thermal decomposition, so mold is being taken apart and after taking out the foundry goods goods, can removed aforementioned member for producing castings from mold at an easy rate.
For foundry sand, there is no particular limitation, can use the foundry sand that all the time uses in the manufacturing of foundry goods.
After casting finished, the temperature that is cooled to stipulate was also removed foundry sand, again the casting product was applied blasting treatment.In addition, remove nonuseable parts such as running gate system.Then, carry out post processings such as deburring processing as required, thereby finish the manufacturing of foundry goods.
As mentioned above, according to the member for producing castings of the present embodiment with use the manufacture method of the foundry goods of these parts, organic fiber is decomposed and form the space in the inside of this member for producing castings, on the other hand, can keep intensity by inorfil and adhesive, after mold is taken apart, can easily carry out the separation of these parts and remove as member for producing castings.Just, by using organic fiber, inorfil and adhesive, member for producing castings of the present invention is because when the mold moulding and casting during motlten metal, maintenance is as the intensity of member for producing castings, when mold was taken apart, its intensity reduced, so compare as the casting method in the past of member for producing castings with using refractory material, the waste treatment of member for producing castings is easy to, and the generation of waste materials amount also reduces significantly.
In addition, owing in member for producing castings of the present invention, contain organic fiber, inorfil and adhesive, so compare with the member for producing castings that only constitutes by organic fiber, flame amount during cast reduces, the thermal contraction that the intensity that can prevent the member for producing castings that organic fiber burning produces reduces and caused by the thermal decomposition (carbonization) of organic bond and produce the slight crack etc. of member for producing castings, can also preventing to produce foundry sand, to be blended into the goods that motlten metal causes not good.
In addition, because member for producing castings of the present invention has aeration,, can prevent to produce defective work so when the casting motlten metal, so-called pore can not produced in foundry goods owing to the gas that produces diffuses the casting sand side.
In addition, member for producing castings of the present invention is a lightweight, can easily cut off processing etc. by enough simple devices, and operability is also excellent.
The present invention is not limited to above-mentioned embodiment, in the scope that does not break away from aim of the present invention, can suitably change.
Member for producing castings of the present invention, except in the cast gate usefulness runner 1 of previous embodiments, using, can also be at inlet shown in Figure 2, runner, ingate, steam vent, rising head, the gas outlet is with using in the runner 2～8.
The manufacture method of foundry goods of the present invention not only is applicable to cast iron, can also be applicable in the casting of nonferrous metal such as aluminium and alloy thereof, copper and alloy thereof, nickel, lead.
Below, by embodiment the present invention is described more specifically.
[embodiment 1]
Use following raw material slurry, carry out papermaking, dehydration, dry again, obtain thickness and be 1mm, quantitatively be 440g/m according to following
2The paper tube body paper.Make following paper tube from the paper tube that makes with body paper, obtain having the cast gate runner (member for producing castings, the about 30g of weight) of following rerum natura ".
The adjusting of＜raw material slurry 〉
The organic fiber and the inorfil of following blending are disperseed in water, prepare about 1% (with respect to water, the gross weight of organic fiber and inorfil is 1 weight %) slurry after, add following adhesive and following agglutinant in this slurry, the mixing ratio (weight ratio) that obtains organic fiber, inorfil and adhesive is the raw material slurry of following value.
[blending of raw material slurry]
Organic fiber: disregard message paper, average fiber long for 1mm, freeness (CSF, below identical) be 150cc;
Inorfil: the fiber of carbon fiber (eastern レ (strain) make, trade name: " ト レ カ チ ヨ Star プ "), the long 3mm of fiber is put into beater, is that to be adjusted to freeness be 300cc for 26: 8 slurry with the weight mixing ratio of organic fiber and inorfil.
Inorganic bond: obsidian (" Na イ ス キ ヤ Star チ " that KINSEIMATEC company makes)
Organic bond: epoxies phenolic resins (manufacturing of Sumitomo ベ one Network ラ イ ト Co., Ltd.)
Agglutinant: (Mitsui サ イ テ Star Network company makes the polyacrylamide agglutinant, A110)
Dispersant: water
The weight mixing ratio of organic fiber, inorfil, inorganic bond, organic bond=26: 8: 48: 18
＜paper tube the Papermaking Conditions of body paper 〉
Use the above-mentioned raw materials composition, by the short net paper machine of apsacline, on-line velocity is that 1.5m/ divides papermaking down, makes the paper of moisture state.
＜paper tube dehydration, the drying condition of body paper 〉
Clamp the paper that makes with felt, the dehydration while vacuumizing makes it pass through between 120 ℃ warm-up mill with the linear velocity that 1.5m/ divides, and makes the moisture content of this paper reach 5 weight % or following.
The forming process of＜paper tube 〉
The paper tube body paper that severing makes, obtain 5 ribbons that width is respectively 54.4mm, 54.8mm, 55.2mm, 55.6mm and 56.0mm, at first, the ribbon of width minimum is wound as helical form as paper tube, thereon further with the little order of width other 4 ribbons of reeling successively, make that internal diameter is about 30mm, density is 1.0g/cm
3Paper tube.At this moment, bonding between the ribbon with adhesive.
＜dry solidification operation 〉
The drying oven of 200 ℃ of aforementioned paper tube inputs is carried out drying in about 60 minutes, obtain runner.
[rerum natura of runner]
Thickness: 1.0mm
The manufacturing of＜foundry goods 〉
The runner that use is made by embodiment 1 constitutes running gate system shown in Figure 2, uses it to form mold, injects motlten metal (1400 ℃) from inlet.
The evaluation of the runner after＜foundry goods is made 〉
Do not observe to inlet return spray and from the violent flame of gas outlet.In addition, after casting, when mold is taken apart, runner intactly cover the metal that wherein solidifies around, can easily remove this runner by blasting treatment thereafter.
As mentioned above, confirm: can suppress the thermal contraction that produces owing to thermal decomposition, and operability is also excellent by the runner (member for producing castings) that embodiment 1 obtains.
Can provide according to the present invention and can suppress the thermal contraction that produces owing to thermal decomposition, and also excellent member for producing castings and the manufacture method thereof of operability, and use this member for producing castings to make the method for foundry goods.
Claims (16)
1. member for producing castings, its be by paper tube is repeated with the part of body paper or with the effective body paper lap wound of plurality of sheets of paper with described paper tube with paper roll around and be configured as tubulose and obtain, described member for producing castings contains organic fiber, carbon fiber and adhesive, and the content with respect to described organic fiber, described carbon fiber and described adhesive amounts to 100 weight portions, contains 7～80 weight portion carbon fibers.
2. the member for producing castings of putting down in writing according to claim 1, wherein, the content of described organic fiber is 10～70 weight portions, the content of described carbon fiber is 7～80 weight portions, the content of described adhesive is 10～85 weight portions, and the content of described organic fiber, described carbon fiber and described adhesive adds up to 100 weight portions.
3. the member for producing castings of putting down in writing according to claim 1 wherein, contains the adhesive of different two or more of fusing point in described adhesive.
4. the member for producing castings of putting down in writing according to claim 1, wherein, described adhesive is organic bond and/or inorganic bond.
5. the member for producing castings of putting down in writing according to claim 4, wherein, described inorganic bond is with SiO
2Compound for main component.
6. the member for producing castings of putting down in writing according to claim 1, wherein, described organic fiber is the paper fiber.
7. the member for producing castings of putting down in writing according to claim 1, wherein, the average fiber length of described organic fiber is 0.8～2.0mm, the average fiber length of described carbon fiber is 0.2～10mm.
8. the member for producing castings of putting down in writing according to claim 1, wherein, the thickness of the part that contacts with motlten metal is 0.2～2mm.
9. a manufacture method of having used the foundry goods of the member for producing castings that claim 1 puts down in writing wherein, is configured in described member for producing castings in the foundry sand.
10. the manufacture method of the foundry goods of putting down in writing according to claim 9, wherein, the described organic fiber that the heat of motlten metal contains described member for producing castings decomposes and forms the space in the inside of this member for producing castings.
11. the manufacture method of the foundry goods of putting down in writing according to claim 9 wherein, after casting finishes, is removed the nonuseable part of member for producing castings.
12. the manufacture method of the foundry goods of putting down in writing according to claim 11 wherein, after casting finishes, is removed the nonuseable part of member for producing castings by blasting treatment.
13. the manufacture method of the member for producing castings that a claim 1 is put down in writing, it has following operation: by the raw material slurry papermaking that contains described organic fiber and described carbon fiber at least is the operation of described paper tube with body paper; The described paper tube that obtains by papermaking with body paper by make this paper tube and repeat with the part of body paper or with many these paper tubes with the body paper lap wound to reel and to be configured as the operation of paper tube; With make the described paper tube obtain of being shaped contain the operation of described adhesive.
14. the manufacture method of the member for producing castings of putting down in writing according to claim 13, wherein, described adhesive is an organic bond, and contains this organic bond by impregnation.
15. the manufacture method of the member for producing castings of putting down in writing according to claim 14 wherein, makes described raw material slurry contain described inorganic bond.
16. the manufacture method of the member for producing castings that a claim 1 is put down in writing, it has following operation: by the raw material slurry papermaking that contains described organic fiber, described carbon fiber and described adhesive at least is the operation of described paper tube with body paper; And the operation that is configured as paper tube by the described paper tube that papermaking obtains with body paper.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002329787 | 2002-11-13 | ||
| JP329787/2002 | 2002-11-13 | ||
| JP379397/2003 | 2003-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1711143A CN1711143A (en) | 2005-12-21 |
| CN100391649C true CN100391649C (en) | 2008-06-04 |
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ID=35707184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801031933A Expired - Fee Related CN100391649C (en) | 2002-11-13 | 2003-11-11 | Member for producing castings |
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| Country | Link |
|---|---|
| JP (1) | JP5036762B2 (en) |
| CN (1) | CN100391649C (en) |
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| CN106903300B (en) * | 2017-03-01 | 2019-02-19 | 浙江大学 | For producing metal casting high temperature resistant papery gate spool and its preparation method |
| CN107096891A (en) * | 2017-04-26 | 2017-08-29 | 常州万兴纸塑有限公司 | The preparation method of high temperature fiber papery sprue cup |
| GB201814136D0 (en) * | 2018-08-30 | 2018-10-17 | Remet Uk Ltd | Investment casting shell binders and compositions |
| JP7300921B2 (en) * | 2019-07-25 | 2023-06-30 | 株式会社巴川製紙所 | sheet for casting |
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| JPS511286Y1 (en) * | 1970-12-21 | 1976-01-16 | ||
| GB2047766A (en) * | 1979-04-28 | 1980-12-03 | Gullfiber Ab | Paper and board |
| JPS57190747A (en) * | 1981-05-19 | 1982-11-24 | Godo Imono Gijutsu:Kk | Production of refractory shell mold |
| JPH01278935A (en) * | 1988-04-28 | 1989-11-09 | Kamogawa Kogyo Kk | Construction of sprue system for lost foam pattern casting |
| JPH0531128A (en) * | 1991-05-31 | 1993-02-09 | G C:Kk | Ring lining material for dental die |
| US5205340A (en) * | 1989-06-27 | 1993-04-27 | Brown Foundry System, Inc. | Insulated paper sleeve for casting metal articles in sand molds |
| JPH09253792A (en) * | 1996-03-25 | 1997-09-30 | Nissan Motor Co Ltd | Paper core for casting and its manufacture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348026A (en) * | 1976-05-25 | 1978-05-01 | Nisshin Steel Co Ltd | Method and apparatus to manupacture core for casting mould |
| JPS55116751U (en) * | 1979-02-13 | 1980-08-18 |
-
2003
- 2003-11-11 CN CNB2003801031933A patent/CN100391649C/en not_active Expired - Fee Related
-
2009
- 2009-06-09 JP JP2009137884A patent/JP5036762B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511286Y1 (en) * | 1970-12-21 | 1976-01-16 | ||
| GB2047766A (en) * | 1979-04-28 | 1980-12-03 | Gullfiber Ab | Paper and board |
| JPS57190747A (en) * | 1981-05-19 | 1982-11-24 | Godo Imono Gijutsu:Kk | Production of refractory shell mold |
| JPH01278935A (en) * | 1988-04-28 | 1989-11-09 | Kamogawa Kogyo Kk | Construction of sprue system for lost foam pattern casting |
| US5205340A (en) * | 1989-06-27 | 1993-04-27 | Brown Foundry System, Inc. | Insulated paper sleeve for casting metal articles in sand molds |
| JPH0531128A (en) * | 1991-05-31 | 1993-02-09 | G C:Kk | Ring lining material for dental die |
| JPH09253792A (en) * | 1996-03-25 | 1997-09-30 | Nissan Motor Co Ltd | Paper core for casting and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009195991A (en) | 2009-09-03 |
| CN1711143A (en) | 2005-12-21 |
| JP5036762B2 (en) | 2012-09-26 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20080604 Termination date: 20201111 |