Alcohol-based foundry coating with abrasive resistance and fabrication method thereof

A technology for casting coatings and manufacturing methods, applied in casting molding equipment, coatings, molds, etc., can solve the problems of low hardness, weak sand resistance, poor suspension stability, etc., and achieve good surface finish and improve wear resistance. The effect of strong energy and anti-stick sand

Inactive Publication Date: 2014-09-03
佛山市顺德区采和装饰材料有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, alcohol-based casting coatings in the prior art have many defects, such as poor suspension stability, easy delamination during long-distance transportation and storage, poor high temperature resis...

Method used

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Embodiment Construction

[0014] The wear-resistant alcohol-based casting coating is characterized in that it is made of the following raw materials in parts by weight: yellow dextrin 1.6, magnesium chloride 0.4, lithium-based bentonite 1, kaolin 45, zircon 34, carboxylate Sodium methylcellulose 2, zinc dithiophosphate 0.2, triphenyl phosphite 1.1, white latex 1.2, shell 9, phenolic resin 3, hexamethylenetetramine 2, ethanol 56, additive 3.

[0015] The auxiliary agent is made of the following raw materials in parts by weight: pig bone 27, rectorite 42, metakaolin 85, silica fume 30, silane coupling agent KH-5702, silica sol 0.4, nanometer silicon carbide powder 1, nanometer four Ferric oxide 1.2, angelica powder 1.2, sodium carboxymethyl starch 0.4, carboxymethyl cellulose 4, appropriate amount of water, the preparation method is to put pig bone, rectorite and metakaolin in a calciner at 560-680°C Calcined at low temperature for 2-3 hours, took it out, soaked it in 8-12% hydrochloric acid solution for...

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Abstract

The invention discloses an alcohol-based foundry coating with abrasive resistance. The alcohol-based foundry coating is characterized by being prepared from the following raw materials in parts by weight: 1.2-3.4 parts of yellow dextrin, 0.4-0.7 part of magnesium chloride, 1-2 parts of lithium bentonite, 45-60 parts of kaoline, 30-40 parts of zirconite, 2-3 parts of sodium carboxymethylcellulose, 0.2-0.4 part of zinc dithiophosphate, 0.6-1.2 parts of triphenyl phosphite, 0.7-1.3 parts of white emulsion, 9-13 parts of shell, 3-5 parts of phenolic resin, 2-4 parts of hexamine, 45-60 parts of ethanol and 3-6 parts of assistant. The coating prepared by the method has the characteristics of being good in abrasive resistance, good in suspension property, good in surface smoothness, free of sediment, free of agglomeration, good in mobility, strong in anti-burn property, good in stability and good in application prospect.

Description

technical field [0001] The invention relates to the field of casting coatings, in particular to a wear-resistant alcohol-based casting coating and a preparation method thereof. Background technique [0002] Foundry coatings refer to casting auxiliary materials that are used to coat the surface of the cavity or sand core to change their surface refractoriness, chemical stability, metal erosion resistance, sand sticking resistance, etc. It is composed of various properties. It is a dispersion system composed of high-quality materials, and its composition mainly includes refractory materials, suspending agents, carriers, binders and special additives. When acting on castings, it is required that the coating has good process performance, work performance, quality stability and application reproducibility. Prevent defects such as cracking, trachoma, and white iron formation caused by excessive local cooling of casting products. There are many kinds of casting coatings, which ca...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 方学军
Owner 佛山市顺德区采和装饰材料有限公司
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