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Modified steel slag alcohol-based casting coating and making method thereof

A steel slag alcohol-based, foundry coating technology, used in foundry molding equipment, coatings, molds, etc., can solve the problems of low hardness, easy delamination, poor suspension stability, etc., and achieves broad application prospects, no adhesion and separation, and breathable good effect

Active Publication Date: 2014-10-08
嘉兴如运建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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 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

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The modified steel slag alcohol-based casting coating is characterized in that it is made of the following raw materials in parts by weight: steel slag 25, graphite 55, zirconium dioxide 0.47, citric acid 1.2, sodium borate 0.5, rosin 3, polyphosphoric acid Ammonium 0.3, nano diatomite powder 1, ammonium benzoate 1.6, plant ash 8, phenolic resin 3, hexamethylenetetramine 2, ethanol 40, additive 4.

[0015] The auxiliary agent is made of the following raw materials in parts by weight: shell 23, sepiolite 39, zircon 57, silane coupling agent KH-5703.4, benzoic acid 0.4, ferrocene 3.2, iron oxide powder 2, coal tar 3. Calcium lignosulfonate 0.3, nano silicon carbide powder 0.3, calcium carbonate 2.3, polyvinyl alcohol 5, appropriate amount of water, the preparation method is to put shells, sepiolite and zircon into a calciner at 550-680 Calcined at ℃ for 2-3 hours, take it out, soak it in 8-12% hydrochloric acid solution for 4-5 hours, filter it out, wash it repeatedly wit...

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Abstract

The present invention discloses a modified steel slag alcohol-based casting coating, which is characterized by being prepared from the following raw materials by weight: 25-30 parts of steel slag, 55-60 parts of graphite, 0.4-0.7 part of zirconium dioxide, 1.2-2.1 parts of citric acid, 0.5-0.9 parts of sodium borate, 3-4 parts of rosin, 0.2-0.4 part of ammonium polyphosphate, 1-3 parts of nano diatomite powder, 0.6-2.1 parts of ammonium benzoate, 4-8 parts of plant ash, 3-5 parts of phenolic resin, 2-4 parts of hexamethylenetetramine, 40-55 parts of ethanol and 3-7 parts of an additive; by adding of the steel slag, the citric acid and the like, the prepared coating has the advantages of high temperature resistance, strong adhesion, good air permeability, easy brushing, high strength and the like, by use of the coating, separation of a casting from a casting mould can be fast and adhesion-free, and the modified steel slag alcohol-based casting coating is broad in application prospect.

Description

technical field [0001] The invention relates to the field of casting coatings, in particular to a modified steel slag 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, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 黄浩
Owner 嘉兴如运建筑科技有限公司
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