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Casting paint for stainless steel casting

A technology of casting paint and stainless steel, which is applied in the direction of casting mould, casting mould composition, casting molding equipment, etc., can solve the problems of insufficient dimensional accuracy of castings, insufficient coating strength, slow self-drying speed, etc., and achieves fast self-drying speed, The effect of reducing production cost and reducing water content

Active Publication Date: 2016-01-20
郑州市超前涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing alcohol-based coatings have fast self-drying properties, they are expensive and pollute heavily, while water-based coatings are green and environmentally friendly, but the self-drying speed is slow and the coating strength is not enough
The coating with the application number 200910105995.7 is applied to stainless steel castings, not only the self-drying speed is slow, but for larger castings, it is not easy to produce sand, and the dimensional accuracy of the castings is not enough.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In parts by weight, the following components are made into coatings: 40 parts of magnesia powder, 10 parts of zirconium-containing composite silicate, 10 parts of potassium feldspar powder, the magnesia powder, zirconium-containing composite silicate, potassium feldspar The average particle size of stone powder is 500 mesh. 1 part of normal temperature binder, 3 parts of high temperature binder, 1 part of polyvinyl butyral, 2 parts of polyethylene glycol, 1 part of lithium bentonite, 2 parts of modified lignosulfonate containing amide structure , 16 parts of water, the magnesia powder, zirconium-containing composite silicate and potassium feldspar powder are all processed by calcining or electric melting. Good results can also be achieved with raw meal that has not been calcined or fused, but clinker works better.

[0019] The normal temperature binder mentioned above is a mixture of silica sol and latex, and the high temperature binder is a silicate binder.

Embodiment 2

[0021] In parts by weight, the following components are made into coatings: 50 parts of magnesia powder, 12 parts of zirconium-containing composite silicate, 15 parts of potassium feldspar powder, the magnesia powder, zirconium-containing composite silicate, potassium feldspar The average particle size of stone powder is 800 mesh. 2 parts of normal temperature binder, 2 parts of high temperature binder, 1 part of polyvinyl butyral, 3 parts of polyethylene glycol, 3 parts of lithium bentonite, 5 parts of modified lignosulfonate containing amide structure , 20 parts of water, the magnesia powder, zirconium-containing composite silicate and potassium feldspar powder are all processed by calcining or electric melting.

[0022] The normal temperature binder mentioned above is a mixture of silica sol and latex, and the high temperature binder is a silicate binder.

Embodiment 3

[0024] A mold coating for stainless steel castings, comprising the following components in parts by weight: 55 parts of magnesia powder, 15 parts of zirconium-containing composite silicate, 15 parts of potassium feldspar powder, the magnesia powder, containing The average particle size of zirconium composite silicate and potassium feldspar powder is 800 mesh. 3 parts of normal temperature binder, 3 parts of high temperature binder, 5 parts of polyvinyl butyral, 3 parts of polyethylene glycol, 3 parts of lithium bentonite, 5 parts of modified lignosulfonate containing amide structure , 32 parts of water, the magnesia powder, zirconium-containing composite silicate and potassium feldspar powder are all processed by calcining or electric melting.

[0025] The normal temperature binder mentioned above is a mixture of silica sol and latex, and the high temperature binder is a silicate binder.

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PUM

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Abstract

The invention discloses casting paint for a stainless steel casting. The casting paint comprises, by weight, 40-55 parts of magnesia powder, 10-15 parts of compound silicate containing zirconium, 10-15 parts of potassium feldspar powder, 1-3 parts of normal-temperature binding agents, 1-3 parts of high-temperature binding agents, 1-5 parts of polyvinyl butyral, 2-3 parts of polyethylene glycol, 1-3 parts of lithium-based bentonite, 2-5 parts of surface active agents and 16-35 parts of water. The magnesia powder, the compound silicate containing zirconium and the potassium feldspar powder are all subjected to calcinations treatment or electric melting treatment. The paint is water-based paint, the production cost can be effectively reduced, and environmental friendliness is achieved; in addition, the solvent water content of the paint is about 20%, the water content is obviously decreased compared with other water-based paint, the phenomenon of sand adhesion can be avoided through the cooperation of other components, the self-drying speed is high, and the performance is excellent.

Description

technical field [0001] The invention relates to a mold coating for stainless steel castings. Background technique [0002] According to the actual production situation, the cost of cleaning castings accounts for about 30% of the entire casting production cost, and after coating, after deducting the cost of coating and application, the cleaning cost of castings can be reduced to 10%. In addition to the advantages, the surface quality and appearance grade of the coated castings are significantly improved. [0003] Although the existing alcohol-based coatings have quick self-drying properties, they are costly and pollute heavily, while water-based coatings are green and environmentally friendly, but their self-drying speeds are slow and the coating strength is not enough. Application No. 200910105995.7 of the invention patent coating applied to stainless steel castings not only has a slow self-drying speed, but also has problems such as difficulty in sanding out for larger cas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 浦巧生
Owner 郑州市超前涂料有限公司