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Quick-dry fireproof paint for evanescent mold manufacturing

A kind of refractory coating and function technology, applied in the direction of fire retardant coatings, coatings, etc., can solve the problem that the refractory coatings cannot meet the ideal requirements, and achieve the effect of reducing the workload of sand cleaning, improving the quality of castings, and making the coating dense and hard.

Inactive Publication Date: 2016-05-25
ANHUI SOLID FOUNDRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the lost foam casting process is currently developing rapidly, the refractory coating used does not meet the ideal requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Add 50 parts of acrylic resin and 20 parts of polyvinyl acetate into 400 parts of isopropanol, heat to reflux state and heat preservation treatment for 15 minutes, then add 4 parts of glucoside and 3 parts of nano-zirconia, and continue the reflux treatment for 10 minutes, that is Get material I;

[0018] (2) Fully mix 15 parts of volcanic ash, 10 parts of clay and 12 parts of zeolite powder, then heat to 70-80°C and keep it warm for 10 minutes, then add 8 parts of glyceryl monostearate and 3 parts of emulsified silicone oil to obtain material II;

[0019] (3) Add material II, 6 parts of sodium carboxymethyl cellulose, 6 parts of soap powder, 2 parts of adhesion promoter, 1 part of dibutyltin dilaurate and 2 parts of methyl ethyl ketoxime to material I, mix well and add to the ball mill , ball milled to a fineness of less than 50 μm.

[0020] Pretreatment of white clay: add 90 parts of white clay and 10 parts of polyvinyl alcohol to 300 parts of ethanol, mix well a...

Embodiment 2

[0023] (1) Add 60 parts of acrylic resin and 25 parts of polyvinyl acetate into 500 parts of isopropanol, heat to a reflux state for heat preservation for 15 minutes, then add 6 parts of glucoside and 2 parts of nano-zirconia, and continue the reflux treatment for 10 minutes, that is Get material I;

[0024] (2) Fully mix 20 parts of volcanic ash, 15 parts of clay and 10 parts of zeolite powder, then heat to 70-80°C and keep it warm for 10 minutes, then add 10 parts of glyceryl monostearate and 5 parts of emulsified silicone oil to obtain material II;

[0025] (3) Add material II, 8 parts of sodium carboxymethyl cellulose, 4 parts of soap powder, 2 parts of adhesion promoter, 2 parts of dibutyltin dilaurate and 1 part of methyl ethyl ketoxime to material I, mix well and add to the ball mill , ball milled to a fineness of less than 50 μm.

[0026] Pretreatment of white clay: add 100 parts of white clay and 15 parts of polyvinyl alcohol to 350 parts of ethanol, mix well and soa...

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PUM

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Abstract

The invention discloses quick-dry fireproof paint for evanescent mold manufacturing and relates to the technical field of casting. The quick-dry fireproof paint is prepared from, by weight, 50-60 parts of acrylic resin, 20-25 parts of polyvinyl acetate, 15-20 parts of volcanic ash, 10-15 parts of carclazyte, 10-15 parts of zeolite powder, 8-12 parts of glyceryl monostearate, 6-10 parts of sodium carboxymethylcellulose, 4-7 parts of soap powder, 4-7 parts of glucoside, 3-5 parts of silicone emulsion, 2-3 parts of nano-zirconia, 2-3 parts of adhesion promoter, 1-2 parts of dibutyltin dilaurate, 1-2 parts of methyl ethyl ketoxime and 400-500 parts of isopropanol. The paint can be solidified at normal temperature after being sprayed onto an evanescent mold, solidification time is less than an hour, a formed coating is dense and hard, sand burning of castings can be effectively prevented, sand cleaning workload can be reduced, a casting cavity can be protected, and then the quality of castings can be improved.

Description

Technical field: [0001] The invention relates to the technical field of casting, in particular to a refractory coating for quick-drying lost foam production. Background technique: [0002] Lost foam casting is to bond and combine paraffin or foam models similar in size and shape to castings to form model clusters. After brushing refractory paint and drying, they are buried in dry quartz sand for vibration modeling, and poured under negative pressure to vaporize the model. , a new casting method in which liquid metal occupies the position of the model, solidifies and cools to form a casting. Compared with traditional casting technology, lost foam casting has the following characteristics: 1) castings are of good quality and low cost; 2) material is not limited, suitable for any size; 3) high dimensional accuracy, smooth surface, less cleaning workload; 4) internal The defects are greatly reduced and the organization is compact; 5) large-scale and mass production can be reali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D131/04C09D101/28C09D7/12C09D5/18
CPCC09D133/00C08K2201/011C08L2201/02C08L2205/035C09D5/18C09D7/62C09D7/63C09D7/65C08L31/04C08L83/04C08L1/286C08K13/06C08K9/04C08K9/02C08K3/346C08K2003/2244C08K3/34
Inventor 何祥炎孙国政周万波
Owner ANHUI SOLID FOUNDRY CO LTD
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