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Nano titanium oxide alcohol-based casting coating and producing method thereof

A technology of nano-titanium oxide and casting coatings, which is applied to casting molding equipment, coatings, casting molds, etc., can solve the problems of low hardness, poor high temperature resistance, low metal erosion resistance, etc., and achieve unique process methods and air permeability Good, good environmental protection effect

Active Publication Date: 2014-10-08
湖州信倍连网络科技有限公司
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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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Embodiment Construction

[0014] The nano-titanium oxide alcohol-based casting coating is characterized in that it is made of the following raw materials in parts by weight: zircon powder 82, aluminum chloride 0.3, organic bentonite 1, ethylene bisstearamide 0.4, antioxidant Agent 1076 0.3, nano-titanium oxide 1, expanded perlite 7, starch 4, potassium iodide 0.8, phenolic resin 2, hexamethylenetetramine 3, ethanol 40, additive 3.

[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-570 3.4, simethicone 0.4, fatty alcohol polyvinyl ether-9 3.2, oxidation Iron 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, zircon into calcined Calcinate in the furnace at 550-680°C for 2-3 hours, take it out, soak it in 8-12% hydrochloric acid solution for 4-5 hours, fi...

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Abstract

The invention discloses a nano titanium oxide alcohol-based casting coating, which is characterized by being prepared from the following raw materials by weight: 75-85 parts of zircon powder, 0.3-0.6 part of aluminum chloride, 1-2 parts of organic bentonite, 0.4-0.7 part of ethylene bis stearamide, 0.2-0.5 part of antioxidant 1076, 1-3 parts of nano titanium oxide, 7-10 parts of expanded perlite, 4-6 parts of starch, 0.8-1.5 parts of potassium iodide, 2-5 parts of phenolic resin, 3-7 parts of hexamethylenetetramine, 40-50 parts of ethanol and 3-6 parts of an assistant; the nano titanium oxide alcohol-based casting coating is prepared by modified addition of the starch into the raw materials by use of a special process, so that the adhesion performance of the coating is increased, the coating prepared by optimized preparation method has the advantages of high temperature resistance, good abrasion resistance, and good air permeability.

Description

technical field [0001] The invention relates to the field of casting coatings, in particular to a nano-titanium oxide 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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IPC IPC(8): B22C3/00
Inventor 黄浩
Owner 湖州信倍连网络科技有限公司
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