Water-based lost-foam casting coating

A technology of lost foam casting and coating, which is used in casting molding equipment, coatings, molds, etc., and can solve the problems of unstable finished product performance, poor coating and hanging properties of water-based casting coatings, poor fluidity, air permeability and strength comprehensive performance, etc. problem, to achieve the effect of reasonable formula design, good economic benefits and social value, and simple preparation

Inactive Publication Date: 2018-04-24
山东蒙沃变速器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, to seek a water-based lost foam casting coating and its preparation method, and to solve the comprehensive performance of the water-based casting coating in the prior art, such as coating performance, fluidity, air permeability and strength Poor, unstable performance of the finished product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A water-based casting paint of the present invention comprises the following raw materials in parts by weight: 1.6 parts of latex powder, 0.2 parts of xanthan gum, 3 parts of attapulgite, 0.3 part of CMC, 1 part of cooked starch, 50 parts of quartz powder, aluminum alum 80 parts of soil, 0.010 parts of penetrant;

[0022] Described preparation method is as follows:

[0023] (1), put CMC and water into the circular body of the disperser first, then add latex powder, xanthan gum, attapulgite into the batching tank, stir for two hours, and stir into a slurry;

[0024] (2). Then add mature starch and penetrating agent in turn, then add quartz powder, bauxite to the batching tank, stir for 3-4 hours, and stir into a slurry;

[0025] (3), add water in the mixer, continue to stir until obtaining the even emulsion coating that Baume degree is 1.7-1.9;

Embodiment 2

[0027] A water-based casting paint of the present invention comprises the following raw materials in parts by weight: 2.2 parts of latex powder, 0.5 part of xanthan gum, 4 parts of attapulgite, 1 part of CMC, 1.6 parts of cooked starch, 60 parts of quartz powder, aluminum alum 100 parts of soil, 0.015 parts of penetrant;

[0028] Described preparation method is as follows:

[0029] (1), put CMC and water into the circular body of the disperser first, then add latex powder, xanthan gum, attapulgite into the batching tank, stir for two hours, and stir into a slurry;

[0030] (2), then add ripening starch and penetrating agent successively, add quartz powder, bauxite in batching tank again, stir 3-4 hour, stir into slurry;

[0031] (3), add water in the mixer, continue to stir until obtaining the even emulsion coating that Baume degree is 1.7-1.9;

Embodiment 3

[0033] A water-based casting paint of the present invention comprises the following raw materials in parts by weight: 2 parts of latex powder, 0.4 part of xanthan gum, 3-4 parts of attapulgite, 0.3-1 part of CMC, 1-1.6 parts of cooked starch, quartz 50-60 parts of powder, 80 parts of bauxite, 0.010-0.015 parts of penetrant;

[0034] Described preparation method is as follows:

[0035] (1), put CMC and water into the circular body of the disperser first, then add latex powder, xanthan gum, attapulgite into the batching tank, stir for two hours, and stir into a slurry;

[0036] (2), then add ripening starch and penetrating agent successively, add quartz powder, bauxite in batching tank again, stir 3-4 hour, stir into slurry;

[0037] (3), add water in the mixer, continue to stir until obtaining the even emulsion coating that Baume degree is 1.7-1.9;

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Abstract

The invention relates to water-based lost-foam casting coating. The water-based lost-foam casting coating consists of the following raw material components in parts by weight: 1.6-2.2 parts of latex powder, 0.2-0.5 part of xanthan gum, 3-4 parts of attapulgite, 0.3-1 part of CMC, 1-1.6 parts of curing starch, 50-60 parts of quartz powder, 80-100 parts of bauxite, and 0.010-0.015 part of a penetrating agent. Compared with the prior art, the water-based lost-foam casting coating has the beneficial effects that: the formula design is reasonable, the preparation process is fine, finished product performances are stable, and the economic benefits and the social value are good.

Description

technical field [0001] The invention belongs to the technical field of lost foam casting, and relates to a water-based casting coating and a preparation method thereof. The coating has wide applicability, fine preparation technology and stable performance of finished products. Background technique [0002] Lost foam casting coating is one of the two key technologies of lost foam casting process. The performance of the coating directly affects the quality of the casting. The existing coatings are mainly obtained by the company's own preparation and purchase of finished coatings. The finished coatings sold in the market include adhesive solid coatings and paste coatings. The price is high and the quality is unstable. For The single configuration of ductile iron or gray iron has poor adaptability. It needs to set up a mixing station, which requires a large investment, and the coating performance and fluidity are insufficient. White molds are prone to whitening after soaking in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 王东杨国栋高向峰武娜高洪龙刘子利孙文龙张少运毛可岩高金宏
Owner 山东蒙沃变速器有限公司
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