Lost foam casting coating

A lost foam casting and coating technology, which is applied to casting molding equipment, coatings, casting molds, etc., can solve the problems of poor adhesion, coating and leveling, and achieve good coating and leveling, and high-quality The effect of lowering the film temperature and increasing the initial tack

Active Publication Date: 2017-06-13
重庆市九明机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The refractory coatings currently used have poor adhesion, coating and leveling properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A kind of lost foam casting coating, comprises following components: 50kg of quartz powder, 1kg of vegetable rubber powder, 10kg of kaolin, 6kg of bentonite, 4kg of methyl methacrylate, 1kg of chloroprene latex and 0.2kg of catalyst, described catalyzer is potassium persulfate - sodium bisulfite, and the mass ratio of the oxidant component of the catalyst to the reducing agent component is 1:1, and the vegetable rubber powder is corn starch.

[0012] During preparation, various raw material components are poured into a stirring tank and stirred at room temperature for 1-2 hours.

Embodiment 2

[0014] A kind of lost foam casting coating, comprises following components: 55kg of quartz powder, 1.5kg of vegetable rubber powder, 12kg of kaolin, 7kg of bentonite, 5kg of methyl methacrylate, 1.5kg of chloroprene latex and 0.3kg of catalyst, described catalyzer is super Dibenzoyl-N,N-xylaniline is oxidized, and the mass ratio of the oxidizing agent component of the catalyst to the reducing agent component is 1.5:1, and the vegetable rubber powder is potato starch.

[0015] During preparation, various raw material components are poured into a stirring tank and stirred at room temperature for 1-2 hours.

Embodiment 3

[0017] A kind of lost foam casting coating, comprises following components: 60kg of quartz powder, 2kg of vegetable rubber powder, 15kg of kaolin, 8kg of bentonite, 6kg of methyl methacrylate, 2kg of chloroprene latex and 0.4kg of catalyst, described catalyst is hydroxyl peroxide Dicumyl-tetraethylenepentamine, and the mass ratio of the oxidant component of the catalyst to the reducing agent component is 2:1, and the vegetable rubber powder is tapioca starch.

[0018] During preparation, various raw material components are poured into a stirring tank and stirred at room temperature for 1-2 hours.

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PUM

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Abstract

Disclosed is a lost foam casting coating. The lost foam casting coating comprises, by weight, 50-60 parts of quartz powder, 1-2 parts of vegetable glue powder, 10-15 parts of kaolin, 6-8 parts of bentonite, 4-6 parts of methyl methacrylate, 1-2 parts of neoprene latex and 0.2-0.4 part of catalyst. The lost foam casting coating with the structure has the advantages of being high in adhesive force, coating property and levelling property.

Description

technical field [0001] The invention relates to a coating for lost foam casting. Background technique [0002] Lost foam casting is known as "new casting technology in the 21st century" and "green casting technology". It is widely used and promoted in the field of cast iron, and the quality of castings has been greatly improved. Enterprises, especially small and medium-sized enterprises, are investing more and more in lost foam casting technology. The lost foam casting technology is to bond and combine foamed plastic models similar in size and shape to the castings to form a model cluster. After brushing with a refractory coating and drying, it is buried in dry quartz sand for vibration molding, and liquid metal is poured under certain conditions. The method of vaporizing the model and occupying the position of the model, solidifying and cooling to form the required casting. Compared with the traditional casting technology, due to the use of highly gasified foam plastics t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 李天柱
Owner 重庆市九明机械制造有限公司
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