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Water-based paint for full mold and preparation method and using method of water-based paint

A water-based coating and lost foam technology, applied in coatings, manufacturing tools, casting and molding equipment, etc., can solve the problems of high price and high cost, and achieve the effects of low production cost, good coating and hanging performance, and high refractoriness.

Inactive Publication Date: 2016-02-10
山东蒙凌工程机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coatings sold on the market today are expensive, costly, and one-component coatings

Method used

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  • Water-based paint for full mold and preparation method and using method of water-based paint
  • Water-based paint for full mold and preparation method and using method of water-based paint
  • Water-based paint for full mold and preparation method and using method of water-based paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of lost foam water-based paint described in the embodiment of the present invention comprises a primer and a topcoat, and the primer is composed of: 10-15 parts of 200-mesh quartz powder, 10-15 parts of 270-mesh quartz powder, 1.2-1.4 parts of sodium hydroxymethyl cellulose, 1.2-1.4 parts of lithium bentonite, 0.8-1.0 parts of starch, 0.024-0.026 parts of washing powder, 0.2-0.3 parts of iron oxide, and 90-100 parts of water; The composition in parts by weight is as follows: 10-15 parts of 200-mesh quartz powder, 10-15 parts of 270-mesh quartz powder, 0.8-1.0 parts of sodium hydroxymethylcellulose, 1.1-1.3 parts of sodium bentonite, 0.8-1.0 parts of flour, washing powder 0.024-0.026 parts, 110-120 parts of water.

Embodiment 2

[0024] A kind of preparation method of primer as described in embodiment 1, such as figure 1 shown, including the following steps:

[0025] Step 101: Dissolving 1.2-1.4 parts of hydroxymethylcellulose sodium in 10-20 parts of water, soaking for more than 24 hours to obtain solution A;

[0026] Step 102: Dissolve 0.8-1.0 parts of starch and 0.024-0.026 parts of washing powder in 30-40 parts of water, and stir for 2-5 hours to obtain solution B;

[0027] Step 103: Put 10-15 parts of 200-mesh quartz powder, 10-15 parts of 270-mesh quartz powder, 1.1-1.3 parts of lithium-based bentonite, and 0.2-0.3 parts of iron oxide in a grinder for 2-8 hours, and add 40 -60 parts of water, grind for 4-7 hours to obtain paste C;

[0028] Step 104: Add solutions A, B and paste C into a paint mixer with built-in wear-resistant steel balls, knead and grind for 12-20 hours to obtain a primer;

Embodiment 3

[0030] A kind of preparation method of top coating as described in embodiment 1, such as figure 2 shown, including the following steps:

[0031] Step 105: Dissolving 0.8-1.0 parts of hydroxymethylcellulose sodium in 10-20 parts of water, soaking for 4-6 hours to obtain solution D;

[0032] Step 106: Mix 10-15 parts of 200-mesh quartz powder, 10-15 parts of 270-mesh quartz powder, 0.8-1.0 parts of sodium hydroxymethylcellulose, 1.1-1.3 parts of sodium bentonite, 0.8-1.0 parts of flour, 0.024-0.026 Put one part of washing powder into the paint mixer, and after 4 hours of mixing, add 90-110 parts of water and solution D, and mix for 4 hours to get the top coat.

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Abstract

The invention relates to special paint for full molds, in particular to water-based paint for a full mold. The water-based paint for the full mold comprises a primer and a surface paint. The primer comprises, by weight, 10-15 parts of 200-mesh quartz powder, 10-15 parts of 270-mesh quartz powder, 1.2-1.4 parts of carboxymethyl cellulose sodium, 1.2-1.4 parts of lithium-based bentonite, 0.8-1.0 part of starch, 0.024-0.026 part of detergents, 0.2-0.3 part of ferric oxide and 90-100 parts of water. The surface paint comprises, by weight, 10-15 parts of 200-mesh quartz powder, 10-15 parts of 270-mesh quartz powder,, 0.8-1.0 part of carboxymethyl cellulose sodium, 1.1-1.3 parts of sodium bentonite, 0.8-1.0 part of flour, 0.024-0.026 part of detergents and 110-120 parts of water. The water-based paint for the full mold has the beneficial effects that the range of raw material sources of the water-based paint for the full mold is wide, the price is low, and the production cost is low; in addition, by coating the surface of a foam mold sample with the paint prepared through the formula, the breathability is high, the smearing performance is good, the refractoriness is high, and the water-based paint can be widely applied to the full mold casting industry.

Description

technical field [0001] The invention relates to a special paint for lost foam casting, in particular to a water-based paint for lost foam casting and its use and preparation method. Background technique [0002] When the lost foam is used to produce castings, the shape used is usually a plastic foam shape, and the plastic foam shape will generate a large amount of gas after high temperature. How to get out of these generated gases does not affect the various properties of the casting. The coating becomes the lost foam casting. One of the key links in the process, its performance affects the quality of the casting, so the coating is required to have good air permeability, refractoriness, and coating properties. The coatings sold on the market today are expensive, costly, and one-component coatings. Contents of the invention [0003] In view of the deficiencies in the above problems, the present invention provides a low-cost two-component special coating for lost foam casti...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 曹宗安邵明允邵长夫邵明钢单夫玺张强王磊庞晓东
Owner 山东蒙凌工程机械股份有限公司
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