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Pyroclastic rock alcohol-based casting coating and manufacturing method thereof

A pyroclastic rock and foundry coating technology, which is applied in foundry molding equipment, coatings, molds, etc., can solve the problems of inability to meet large-scale industrial production, single function of alcohol-based foundry coatings, and low resistance to metal scouring. , to achieve the effect of reducing the amount of defects, easy to promote, and low cost

Active Publication Date: 2014-12-10
湖州信倍连网络科技有限公司
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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 pyroclastic rock alcohol-based casting coating is characterized in that it is made of the following raw materials in parts by weight: fluorite powder 44, floating beads 7, white corundum 56, organic bentonite 1, pyroclastic rock 18, silicon Sol 1.2, light calcium carbonate powder 2, heavy calcium carbonate powder 0.5, tributyl phosphate 2.2, rapeseed residue 14, phenolic resin 2, hexamethylenetetramine 5, 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 ...

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Abstract

The invention discloses a pyroclastic rock alcohol-based casting coating. The pyroclastic rock alcohol-based casting coating is characterized by being composed of, by weight, 40 parts to 50 parts of fluorite powder, 5 parts to 8 parts of floating beads, 50 parts to 60 parts of white corundum, 1 part to 2 parts of organobentonite, 18 parts to 28 parts of pyroclastic rock, 1.2 parts to 3.1 parts of colloidal silica, 2 parts to 4 parts of light calcium carbonate powder, 0.5 part to 0.8 part of heavy calcium carbonate powder, 1.2 parts to 3.2 parts of tributyl phosphate, 14 parts to 17 parts of rapeseed residue, 2 parts to 4 parts of phenolic resin, 3 parts to 5 parts of hexamine, 45 parts to 60 parts of ethyl alcohol and 3 parts to 6 parts of auxiliaries. The coating manufactured through the method is low in cost and simple in technology. Manual stirring or mechanical stirring can be adopted. The pyroclastic rock alcohol-based casting coating is suitable for being produced in a small scale or a large scale, and is easy to popularize, and the manufactured coating has the advantages of being high in strength, resistant to high temperature and good in air permeability.

Description

technical field [0001] The invention relates to the field of casting coatings, in particular to a pyroclastic 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 can b...

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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