Full mold casting process

A solid casting and process technology, applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of low production efficiency, long research and development cycle, increased rate of unqualified products, etc., to achieve strong crack growth resistance and production. The effect of low cost and short processing time

Inactive Publication Date: 2016-09-28
池州埃美柯水表铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage in the use of automotive panel molds is severe wear, which leads to an increase in the rate of defective products and ultimately leads to low production efficiency
The size of the casting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] During specific implementation, a kind of full mold casting process comprises the following steps:

[0019] S1, using polystyrene foam as the solid mold casting material to make a polystyrene foam model;

[0020] S2, dissolving silicon powder in ethanol solution to make silicon powder paint, brushing the paint with polystyrene foam model for 2-3 times to air-dry and harden;

[0021] S3. Add the polystyrene foam model in S2 to the water glass sand molding, the particle size of the water glass sand is 50 mesh, pound the sand and compact it, pierce air holes on the sand mold, and blow CO2 gas for 5 minutes to fully harden the molding sand. Obtain a solid casting mold; when the size of the casting is large, add a sand box and increase the height of the riser, so that there will be no shrinkage cavity when the casting is finally solidified;

[0022] S4. Using a 200kg induction furnace, add 50 parts of pig iron, 40 parts of scrap steel, 2 parts of ferrochromium, 5 parts of f...

Embodiment 2

[0026] During specific implementation, a kind of full mold casting process comprises the following steps:

[0027] S1, using polystyrene foam as the solid mold casting material to make a polystyrene foam model;

[0028] S2, dissolving silicon powder in ethanol solution to make silicon powder paint, brushing the paint with polystyrene foam model for 2-3 times to air-dry and harden;

[0029] S3. Add the polystyrene foam model in S2 to the water glass sand molding, the particle size of the water glass sand is 70 mesh, pound the sand and compact it, pierce air holes on the sand mold, and blow CO2 gas for 10 minutes to fully harden the molding sand. Obtain a solid casting mold; when the size of the casting is large, add a sand box and increase the height of the riser, so that there will be no shrinkage cavity when the casting is finally solidified;

[0030] S4. Using a 200kg induction furnace, add 60 parts of pig iron, 30 parts of steel scrap, 5 parts of ferrochrome, 2 parts of fe...

Embodiment 3

[0034] During specific implementation, a kind of full mold casting process comprises the following steps:

[0035] S1, using polystyrene foam as the solid mold casting material to make a polystyrene foam model;

[0036] S2, dissolving silicon powder in ethanol solution to make silicon powder paint, brushing the paint with polystyrene foam model for 2-3 times to air-dry and harden;

[0037] S3. Add the polystyrene foam model in S2 to the water glass sand molding, the particle size of the water glass sand is 60 mesh, pound the sand and compact it, pierce air holes on the sand mold, and blow CO2 gas for 8 minutes to fully harden the molding sand. Obtain a solid casting mold; when the size of the casting is large, add a sand box and increase the height of the riser, so that there will be no shrinkage cavity when the casting is finally solidified;

[0038] S4. Using a 200kg induction furnace, add 55 parts of pig iron, 35 parts of steel scrap, 3 parts of ferrochromium, 3 parts of f...

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PUM

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Abstract

The invention discloses a full-shape casting process, which uses the full-shape casting technology to process automobile cover molds, selects polystyrene foam to make a casting mold, and uses water glass sand to make a full-shape casting mold, which is poured, cooled, and punched. Box, cleaning, sandblasting, cutting off the riser, to obtain the formed casting. The solid mold casting process of the present invention has the characteristics of good formability, low production cost, short processing time, high wear resistance, fatigue resistance and strong crack growth resistance.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a full mold casting process. Background technique [0002] In the production of automobile panel molds, it is the development trend of automobile molds at home and abroad to replace forged alloy molds with casting alloy molds. The biggest disadvantage in the use of automotive panel molds is severe wear, which leads to an increase in the rate of defective products and ultimately leads to low production efficiency. The size of the casting mold for some large automobile panels is too large, the solidification process is more complicated, the process adjustment is difficult, the research and development cycle is long, and the technology is difficult. Contents of the invention [0003] The invention provides a full-shape casting process, which adopts the full-shape casting technology, selects mold steel with appropriate chemical composition for pouring, and obtains mold castings fo...

Claims

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Application Information

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IPC IPC(8): B22C9/04
CPCB22C9/046
Inventor 马怒威
Owner 池州埃美柯水表铸造有限公司
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