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Paint used for casting

A technology of coatings and raw materials, applied in casting molding equipment, coatings, casting molds, etc., can solve the problems of inability to form coatings and low suspension, and achieve good suspension stability and cohesion

Inactive Publication Date: 2015-12-09
蚌埠冠宜型材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, resin coating is commonly used, because it is a suspending liquid and has low suspending property, so it can be painted evenly by stirring continuously during use, otherwise a dense coating cannot be formed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: A coating used for casting, characterized in that it is made of the following raw materials in parts by mass: 20 parts of phenolic resin, 25 parts of rosin, 50 parts of carrier, 8 parts of zircon powder, 4 parts of carbon fiber, 6 parts of additives , 15 parts of ceramic powder, 5 parts of triphenyltin hydroxide.

[0013] The carrier is ethanol, the mass fraction of ethanol is greater than 95%, the boiling point is 70°C, and the density is 0.80g / cm 3 , and the flash point is 12°C.

[0014] The additives include the following components by weight: 2 parts of antiseptic, 3 parts of wetting agent, 2 parts of defoaming agent, and 1 part of oxidizing agent.

[0015] The method of using the paint is to achieve an appropriate thickness by one application, and the thickness of the paint layer is 1.5mm.

Embodiment 2

[0016] Embodiment 2: A coating used for casting, characterized in that it is made of the following raw materials in parts by mass: 10 parts of phenolic resin, 15 parts of rosin, 40 parts of carrier, 5 parts of zircon powder, 2 parts of carbon fiber, and 5 parts of additives , 10 parts of ceramic powder, 2 parts of triphenyltin hydroxide.

[0017] The carrier is ethanol, the mass fraction of ethanol is greater than 95%, the boiling point is 70°C, and the density is 0.80g / cm 3 , and the flash point is 12°C.

[0018] The additives include the following components in parts by weight: 1 part of preservative, 2 parts of wetting agent, 1 part of defoaming agent, and 0.5 part of oxidizing agent.

[0019] The method of using the paint is to achieve an appropriate thickness by one coating, and the thickness of the paint layer is 1mm.

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PUM

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Abstract

The invention relates to the field of molding sand casting, in particular to paint used for casting. The paint is characterized by comprising the following ingredients in parts by mass: 10 to 20 parts of phenolic resin, 15 to 25 parts of rosin, 40 to 50 parts of carriers, 5 to 8 parts of zircon powder, 2 to 4 parts of carbon fiber, 5 to 6 parts of additives, 10 to 15 parts of ceramic powder and 2 to 5 parts of fentin hydroxide. The paint has sufficient rapid-heating-resistant performance and high-temperature stability, and can bear the thermal stress action during high-temperature intense heating; coatings do not crack or peel off; and good suspension stability and good bondability are achieved.

Description

Technical field: [0001] The invention relates to the field of casting, and more specifically relates to a coating used in casting. Background technique: [0002] The coating used for sand casting is mainly to shield the interaction between the sand mold and the metal liquid, and form a dense refractory coating at the casting temperature to prevent the metal liquid from penetrating into the sand mold. Prevent from entering the liquid metal and affect the surface finish of the casting. At present, resin coating is commonly used, because it is a suspension liquid, and the suspension is low, and it can be painted evenly by stirring continuously during use, otherwise a dense coating cannot be formed. In the manufacturing process of integrally casting one-time forming doors in a vacuum environment, special coatings are required to achieve the desired effect. Invention content: [0003] The technical problem to be solved by the present invention is to overcome the existing tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 施文明薛君南
Owner 蚌埠冠宜型材科技有限公司
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