Improved pig-bone alcohol-based casting paint and production method thereof

Abstract

The invention discloses improved pig-bone alcohol-based casting paint. The improved pig-bone alcohol-based casting paint is characterized by being prepared from the following raw materials in parts by weight: 10 to 14 parts of high aluminum cement, 0.3 to 0.5 part of polyvinyl butyral, 0.2 to 0.6 part of alkyl sodium sulfonate, 45 to 60 parts of zircon powder, 40 to 60 parts of white corundum, 1 to 3 parts of nano-grade clay, 0.1 to 0.3 part of alkylated diphenylamines, 0.2 to 0.4 part of sodium nitrate, 1 to 2 parts of xanthan gum, 1.2 to 3.2 parts of hydrogen-containing silicon oil, 12 to 14 parts of pig bone, 3 to 5 parts of phenolic resin, 1 to 3 parts of hexamine, 40 to 50 parts of ethanol and 3 to 7 parts of additives. Animal bone such as the pig bone is added into the raw materials after being modified, so that a good suspension effect and good high temperature resistance can be realized; meanwhile, by comprehensively utilizing other raw materials to be composited, the prepared paint has the advantages of good fire resistance, great sand resistance, excellent coating property, good leveling property and the like, the problem that the casting paint utilized in the large-sized casting production enterprises in China depends on the import can be solved, the domestic blank can be filled, and the adaptability is good.

Description

technical field [0001] The invention relates to the field of casting coatings, in particular to a modified pork bone type 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,...

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 resistance, low hardness, poor chemical stability, and low metal erosion resistance. , weak sand resistance, etc., make alcohol-based casting coatings have a single function and cannot meet large-scale industrial production