CN101733362A - Method for casting metallic mold - Google Patents
Method for casting metallic mold Download PDFInfo
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- CN101733362A CN101733362A CN200910214172A CN200910214172A CN101733362A CN 101733362 A CN101733362 A CN 101733362A CN 200910214172 A CN200910214172 A CN 200910214172A CN 200910214172 A CN200910214172 A CN 200910214172A CN 101733362 A CN101733362 A CN 101733362A
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- mold
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Abstract
The invention discloses a method for casting a metallic mold. The method comprises the following steps of: a, preparing a foam plastic mold according to a shape of a casting, wherein the mold making material is common foam plastics; b, placing the foam plastic mold in a sand box, shaping the foam plastic mold by organic or inorganic resin sand which is the self-hardening sand; c, completely burning the foam plastic mold, and leaving a self-hardening sand mold cavity; d, applying a coating on the surface of the mold cavity; and e, mold closing and casting, and then cooling the mold cavity to form the casting. In the method, the foam mold replaces the wooden mold, so that the mold is conveniently prepared, the mold making time is greatly saved, and the shaped foam mold is not taken out to form an entity mold cavity, namely one foam mold which is completely similar to the casting in shape is left in the casting mold, and removed by burning to form the mold cavity, the coating is applied in the mold cavity, and then the mold cavity is cast. Therefore, the method is particularly suitable for producing single piece or various types of castings, and by the method, the cost is saved, the production period is shortened and the special tool equipment is not needed.
Description
Technical field
The present invention relates to foundry engieering, particularly relate to a kind of easy method for casting metallic mold.
Background technology
Usually, traditional sand casting all must be made mould earlier.Mold materials is generally timber, metal material or rigid plastics etc.Along with the difference of pattern-making material, life cycle costing, the complexity of molding also have nothing in common with each other.Along with the development of chemical science, the particularly invention of foam type material, and a large amount of production, casting field has that to develop a kind of cavityless casting be the lost foam casting technology.
Summary of the invention
The purpose of this invention is to provide a kind of sand that do not collapse, can effectively guarantee the lost-foam casting method of casting quality.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method for casting metallic mold comprises the steps: a), makes foamed polystyrene pattern according to the foundry goods shape; B), foamed polystyrene pattern is placed sandbox, use the organic or inorganic phenolic sand molding; C), foam mould lighted burnouts, stay the self-hardening sand die cavity; D), at the mold cavity surface daub; E), cooling formation foundry goods is poured into a mould in mould assembling.
Pattern-making material is the regular-type foam plastics in the described step a), and the resin sand in the described step b) is self-hardening sand.
The invention has the beneficial effects as follows: replace wooden model with bubbles model, simple for production, save a large amount of molding times, bubbles model does not take out after the moulding, be the entity die cavity, promptly one is retained in the casting mold with the on all four bubbles model of foundry goods shape, adopt the means of burning to make its disappearance, form die cavity brushing paint in die cavity again, and then pour into a mould, technology is simple, do not collapse sand, can effectively guarantee casting quality, this method is specially adapted to the castings production that single-piece is tasted with discrimination kind more, saves cost, shorten the production cycle, do not need special frock.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail.
A kind of method for casting metallic mold comprises the steps: a), makes foamed polystyrene pattern according to the foundry goods shape, and pattern-making material is the regular-type foam plastics; B), foamed polystyrene pattern is placed sandbox, use the organic or inorganic phenolic sand molding, resin sand is self-hardening sand; C), foam mould lighted burnouts, stay the self-hardening sand die cavity; D), at the mold cavity surface daub; E), cooling formation foundry goods is poured into a mould in mould assembling.
The present invention replaces wooden model with bubbles model, simple for production, save a large amount of molding times, bubbles model does not take out after the moulding, be the entity die cavity, promptly one is retained in the casting mold with the on all four bubbles model of foundry goods shape, adopt the means of burning to make its disappearance, form die cavity brushing paint in die cavity again, and then pour into a mould, technology is simple, do not collapse sand, can effectively guarantee casting quality, this method is specially adapted to the castings production that single-piece is tasted with discrimination kind more, saves cost, shorten the production cycle, do not need special frock.
The foregoing description is illustrative principle of the present invention and effect thereof only; and the embodiment of part utilization, for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. a method for casting metallic mold is characterized in that: comprise the steps
A), make foamed polystyrene pattern according to the foundry goods shape;
B), foamed polystyrene pattern is placed sandbox, use the organic or inorganic phenolic sand molding;
C), foam mould lighted burnouts, stay the self-hardening sand die cavity;
D), at the mold cavity surface daub;
E), cooling formation foundry goods is poured into a mould in mould assembling.
2. a kind of method for casting metallic mold according to claim 1 is characterized in that, pattern-making material is the regular-type foam plastics in the described step a), and the resin sand in the described step b) is self-hardening sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910214172A CN101733362A (en) | 2009-12-24 | 2009-12-24 | Method for casting metallic mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910214172A CN101733362A (en) | 2009-12-24 | 2009-12-24 | Method for casting metallic mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101733362A true CN101733362A (en) | 2010-06-16 |
Family
ID=42457683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910214172A Pending CN101733362A (en) | 2009-12-24 | 2009-12-24 | Method for casting metallic mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101733362A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039372A (en) * | 2011-01-11 | 2011-05-04 | 大连鸿骏源机械有限公司 | Lost foam casting method |
| CN103801653A (en) * | 2014-02-14 | 2014-05-21 | 山东旗开重型机械有限公司 | Rapid manufacturing method of resin casting mold |
| CN109550889A (en) * | 2017-09-25 | 2019-04-02 | 高淳县龙宁精密铸造有限公司 | Chief axis evaporative pattern and its method for casting main shaft ram |
| CN110014120A (en) * | 2019-05-16 | 2019-07-16 | 芜湖久弘重工股份有限公司 | A kind of casting and molding method that the wood that disappears combines |
-
2009
- 2009-12-24 CN CN200910214172A patent/CN101733362A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039372A (en) * | 2011-01-11 | 2011-05-04 | 大连鸿骏源机械有限公司 | Lost foam casting method |
| CN103801653A (en) * | 2014-02-14 | 2014-05-21 | 山东旗开重型机械有限公司 | Rapid manufacturing method of resin casting mold |
| CN109550889A (en) * | 2017-09-25 | 2019-04-02 | 高淳县龙宁精密铸造有限公司 | Chief axis evaporative pattern and its method for casting main shaft ram |
| CN110014120A (en) * | 2019-05-16 | 2019-07-16 | 芜湖久弘重工股份有限公司 | A kind of casting and molding method that the wood that disappears combines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100616 |