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Evaporative pattern steel molder's paint and preparation method therefor

A technology of lost foam and cast steel, applied in the field of coatings, which can solve the problems of high temperature erosion resistance, low strength, easy cracking, etc., and achieve the effect of not easy to slag inclusion, high refractoriness, and not easy to bubble

Active Publication Date: 2020-01-17
安徽兰翔纺机科技有限公司
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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 solve the above-mentioned problems in the existing technology, and propose a kind of lost foam cast steel paint and preparation method thereof. The component configuration of the overall coating solves the defects of not being resistant to high temperature erosion, easy to crack, low strength and slag inclusion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 A preparation method of the lost foam cast steel coating of the present invention.

[0031] The invention provides a coating for lost foam cast steel and a preparation method thereof. In this embodiment, the coating is prepared with a raw material weight of 10 kg, and each raw material is weighed according to the following weight percentages, aluminum oxide 47.48%, silicon dioxide 31.6%, ferric oxide 0.5%, calcium oxide 0.11%, magnesium oxide 0.86%, potassium oxide 0.054%, sodium oxide 0.006%, titanium dioxide 2.4%, zirconium dioxide 6.79%, phenolic resin 1.6%, white latex 1.4%, Calcium-based bentonite 2.4%, wetting agent JFC: 0.13%, isopropanol 0.12%, CMC: 1.5%, silica sol 2.2%, polytetrafluoroethylene fiber 0.85%, namely take 4748g of aluminum oxide, silicon dioxide 3160g, 50g of ferric oxide, 11g of calcium oxide, 86g of magnesium oxide, 5.4g of potassium oxide, 0.6g of sodium oxide, 240g of titanium dioxide, 679g of zirconium dioxide, 160g of phenolic resi...

Embodiment 2

[0040] Example 2 Existing EPC coating and its preparation method.

[0041] In the present embodiment, the coating is prepared with a raw material weight of 10 kg, and each raw material is weighed according to the following weight percentages, 75% of silicon dioxide, 1% of ferric oxide, 0.2% of calcium oxide, 0.03% of potassium oxide, Aluminum 15.67%, CMC: 2%, white latex 2.3%, bentonite 2.5%, isopropanol 0.1%, phenolic resin 1.2%, that is, silicon dioxide 7500g, ferric oxide 100g, calcium oxide 20g, potassium oxide 3g , Aluminum oxide 1567g, CMC: 200g, white latex 230g, bentonite 250g, isopropanol 10g, phenolic resin 120g.

[0042] Concrete preparation steps are as follows:

[0043] Step 1, preparing the weighed silicon dioxide, ferric oxide, calcium oxide, potassium oxide, aluminum oxide, and bentonite into a powdery mixture of 200-250 mesh;

[0044] Step 2: Add an appropriate amount of water into the paint mixer, add the weighed white latex, phenolic resin, isopropanol, and ...

Embodiment 3

[0046] Example 3 A comparative example of the present invention, a coating for lost foam cast steel without adding polytetrafluoroethylene fibers and its preparation method.

[0047] In this embodiment, the coating is prepared with a raw material weight of 10 kg, and each raw material is weighed according to the following weight percentages, aluminum oxide 48.33%, silicon dioxide 31.6%, ferric oxide 0.5%, calcium oxide 0.11%, oxide Magnesium 0.86%, potassium oxide 0.054%, sodium oxide 0.006%, titanium dioxide 2.4%, zirconium dioxide 6.79%, phenolic resin 1.6%, white latex 1.4%, calcium-based bentonite 2.4%, wetting agent JFC: 0.13%, isopropyl Alcohol 0.12%, CMC: 1.5%, silica sol 2.2%, that is, take 4833g of aluminum oxide, 3160g of silicon dioxide, 50g of ferric oxide, 11g of calcium oxide, 86g of magnesium oxide, 5.4g of potassium oxide, and 0.6 g, titanium dioxide 240g, zirconium dioxide 679g, phenolic resin 160g, white latex 140g, calcium-based bentonite 240g, wetting agent...

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Abstract

The invention provides evaporative pattern steel molder's paint and a preparation method therefor and belongs to the technical field of paint. The evaporative pattern steel molder's paint is used forsolving the technical problems that the existing evaporative pattern paint is not resistant to high-temperature scouring, is prone to cracking, is low in strength and presents slag inclusion after pouring. The evaporative pattern steel molder's paint is prepared from the following raw materials according to a proper weight percent: aluminum oxide, silicon dioxide, ferric oxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, titanium dioxide, zirconium dioxide, phenol-formaldehyde resin, white latex, calcium bentonite, a humectant JFC, isopropanol, CMC, silica sol and polytetrafluoroethylene fibers. The paint has a good coating effect, is good in overall adhesive power, good in baking crack resistance, high in strength and good in high-temperature scouring resistance and isnot prone to a sagging phenomenon, the defect of scouring slag inclusion is effectively improved, a coating is automatically stripped after casting molding, the surface smoothness of products is good,and the surface quality of the products is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a lost foam cast steel coating and a preparation method thereof. Background technique [0002] Lost foam coating is an essential auxiliary material for lost foam casting to obtain high-quality castings with smooth surfaces. Lost foam casting coatings can prevent mechanical and thermal sand sticking of castings, improve the rigidity of foam plastic models, and prevent deformation during embedding. Contributes to the effects of rapid discharge of pyrolysis gas in a vanishing pattern. Lost foam coatings are generally composed of refractory aggregates, binders, carriers, surfactants, suspending agents, thixotropic agents and other additives. Various components are uniformly mixed together. It plays a comprehensive role in the molten metal pouring process. [0003] At present, the existing lost foam cast steel coatings in the market mainly use silicon dioxide as the main raw materi...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66Y02P10/20
Inventor 卓理财钱益新
Owner 安徽兰翔纺机科技有限公司
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