Production method of casting alcohol based paints using resin bonded sand

A production method and resin sand technology, which are applied in casting molding equipment, coatings, molds, etc., can solve the problems of easy cracking, high cost of foundry coatings, rough surface, etc., and achieve good crack resistance and high sand resistance. , good stability

Inactive Publication Date: 2008-10-22
QINGDAO HAILONG MACHINERY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of high cost of casting coatings, rough surface and easy cracks after painting, the present invention invents a production method of resin sand casting alcohol-based coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Get 60 kilograms of high alumina bauxite powder, 20 kilograms of graphite powder, 6 kilograms of dextrin powder, 6 kilograms of bentonite powder, 1 kilogram of polyvinyl butyral, 2 kilograms of iron oxide powder, 2.5 kilograms of rosin, 2.5 kilograms of 665 phenolic resin, After ball milling, rubber milling, screening, mixing and stirring evenly, 100 kg of high-performance casting coating can be obtained.

Embodiment 2

[0017] Get 120 kilograms of high alumina bauxite powder, 40 kilograms of graphite powder, 12 kilograms of dextrin powder, 12 kilograms of bentonite powder, 2 kilograms of polyvinyl butyral, 4 kilograms of iron oxide powder, 5 kilograms of rosin, 5 kilograms of 665 phenolic resins, After ball milling, rubber milling, screening, mixing and stirring evenly, 200 kg of high-performance casting coating can be obtained.

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PUM

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Abstract

The invention provides a production method for casting alcohol-based coating with a resin sand, comprising the compositions as follows: high bauxite powders, graphite powders, dextrin powders, bentonite powders, polyvinyl butyral, ferric oxide powders, colophony and 665 phenolic resin; the proportion of the composition is as follows: 60% of high bauxite powders, 20% of graphite powders, 5%-7% of dextrin powders, 5%-7% of bentonite powders, 0.5%-1% of polyvinyl butyral, 2%-3% of ferric oxide, 2%-3% of colophony and 2%-3% of 665 phenolic resin. The method of the invention solves the problems of the current clay sand dry-typed casting coating such as high cost, coarse surface after coating and easy cracking and is suitable for the application in the casting production.

Description

technical field [0001] The invention relates to the field of casting, in particular to a coating for improving the surface quality of casting moulds. Background technique [0002] Most of the current foundry coatings are clay sand dry coatings made by mixing process. The disadvantages are high cost, rough surface and easy cracks after painting. Contents of the invention [0003] In order to solve the problems of high cost of casting coatings, rough surface and easy cracks after painting, the present invention invents a production method of resin sand casting alcohol-based coatings. [0004] In order to solve the above problems, the present invention adopts a technical scheme that is a production method of resin sand casting alcohol-based coating, comprising: [0005] 1. Its composition is: high alumina bauxite powder, graphite powder, dextrin powder, bentonite powder, polyvinyl butyral, iron oxide powder, rosin, 665 phenolic resin. [0006] 2. The composition ratio is: h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 黄建勇任世斌马海波孙胜祖聂珍平
Owner QINGDAO HAILONG MACHINERY GRP
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