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Coating used for dewaxing casting

A lost-wax casting and coating technology, which is applied to casting molding equipment, coatings, casting molds, etc., can solve the problem of easy peeling of paint, achieve the effect of not easy to fall off, and improve the yield

Inactive Publication Date: 2017-05-31
格润德(青岛)新型环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the binder used in lost wax casting coatings is mainly water glass, because water glass is cheap and easy to use, but it is difficult to use in high temperature precision casting, and the coating is easy to peel off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The coating for lost wax casting is prepared from the following raw materials in parts by weight: 25 parts of aluminum dihydrogen tripolyphosphate, 16 parts of bauxite, 26 parts of zircon, 10 parts of fly ash, and 5 parts of graphite.

[0009] Bauxite, zircon, fly ash and graphite in the above raw materials are ground into powder.

[0010] When making the shell, the lost-wax casting paint is mixed with water and stirred to meet the requirements, painted on the shell, dried and hardened, and then roasted.

Embodiment 2

[0012] The coating for lost wax casting is prepared from the following raw materials in parts by weight: 32 parts of aluminum dihydrogen tripolyphosphate, 18 parts of bauxite, 25 parts of zircon, 13 parts of fly ash, and 2 parts of graphite.

[0013] Bauxite, zircon, fly ash and graphite in the above raw materials are ground into powder.

[0014] When making the shell, the lost-wax casting paint is mixed with water and stirred to meet the requirements, painted on the shell, dried and hardened, and then roasted.

Embodiment 3

[0016] The coating for lost wax casting is prepared from the following raw materials in parts by weight: 235 parts of aluminum dihydrogen tripolyphosphate, 12 parts of bauxite, 27 parts of zircon, 12 parts of fly ash and 4 parts of graphite.

[0017] Bauxite, zircon, fly ash and graphite in the above raw materials are ground into powder.

[0018] When making the shell, the lost-wax casting paint is mixed with water and stirred to meet the requirements, painted on the shell, dried and hardened, and then roasted.

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PUM

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Abstract

The invention relates to a coating used for casting, in particular to a coating used for dewaxing casting. The coating comprises, by weight, 25-35 parts of aluminum dihydrogen tripolyphosphate, 12-18 parts of bauxite, 25-27 parts of zirconite, 10-13 parts of pulverized fuel ash and 2-5 parts of graphite. The coating used for dewaxing casting is composed of the aluminum dihydrogen tripolyphosphate and a high-resisting material, the prepared coating is resistant to high temperatures and not prone to disengaging, and the rate of finished products is increased.

Description

technical field [0001] The invention relates to a coating for casting, in particular to a coating for lost wax casting. Background technique [0002] At present, the binder used in the lost-wax casting coating is mainly water glass. Because water glass is cheap and easy to use, it is difficult to use in high-temperature precision casting, and the coating is easy to peel off. Contents of the invention [0003] In view of the above-mentioned technical problems, the present invention provides a coating for lost wax casting that is not easy to peel off. The technical scheme adopted in the present invention is as follows: [0004] The coating for lost wax casting is prepared from the following raw materials in parts by weight: 25-35 parts of aluminum dihydrogen tripolyphosphate, 12-18 parts of bauxite, 25-27 parts of zircon, 10-13 parts of fly ash, graphite 2 to 5 servings. [0005] Bauxite, zircon, fly ash and graphite in the above raw materials are ground into powder. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 黄亚楠
Owner 格润德(青岛)新型环保建材有限公司
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