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Alcohol-based foundry coating with strong coating property and producing method thereof

A technology for casting coatings and manufacturing methods, which is applied to casting molding equipment, coatings, casting molds, etc., can solve problems such as poor high temperature resistance, low hardness, and weak sand-sticking resistance, and achieve improved suspension, smooth surface, and Strong coating 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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Embodiment Construction

[0014] The alcohol-based casting coating with strong applicability is characterized in that it is made of the following raw materials in parts by weight: bauxite clinker 68, aluminum dihydrogen phosphate 1.1, attapulgite 1, lignin 0.49, bauxite tailings 30, antioxidant 425 0.6, zinc sulfide 0.5, plantain taro residue 12, thermosetting phenolic resin 1, hexamethylenetetramine 2, ethanol 45, 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-5703.4, dimethyl silicone oil 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 Calcined at -680°C for 2-3 hours, took it out, soaked it in 8-12% hydrochloric acid solution for 4-5 hours, filtered it out, washed it r...

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Abstract

The present invention discloses an alcohol-based foundry coating with strong coating property, and the alcohol-based foundry coating with strong coating property is characterized by being prepared from the following raw materials by weight: 65-80 parts of bauxite curring material, 1.1-2.3 parts of aluminum dihydrogen phosphate, 1-2 parts of attapulgite clay, 0.4-0.9 part of lignin, 30-40 parts of bauxite tailings, 0.3-0.6 part of antioxidant 425, 0.5-0.8 part of zinc sulfide, 12-15 parts of canna edulis ker residue, 1-3 parts of thermosetting phenol resin, 2-4 parts of hexamethylenetetramine, 45-55 parts of ethanol and 3-5 parts of an assistant, the prepared coating has strong coating property, high temperature resistance, flame resistance, and bonding property; the suspending property of the coating prepared by using the canna edulis ker residue and the attapulgite clay as suspending agents is improved, and the coating is not easy to precipitate in the use process, is beneficial to obtain castings with smooth surfaces and no oxidation wrinkled skin.

Description

technical field [0001] The invention relates to the field of casting coatings, in particular to an alcohol-based casting coating with strong coating properties 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 c...

Claims

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Application Information

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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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