Heat insulation anti-sticking coating for mechanical cast steel machining and preparation method of heat insulation anti-sticking coating

An anti-sticking coating and cast steel technology, applied in metal processing equipment, casting molding equipment, coating, etc., can solve the problems of low heat resistance temperature, easy decarburization, easy oxidation, etc.

Inactive Publication Date: 2014-12-10
珠海市龙圣模具材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application aims at the technical problems of low heat-resistant temperature, easy to corrode, easy to oxidize, low relative density and easy decarburization of existing water-soluble coatings, and provides a kind of heat-insulating anti-sticking coating and its preparation method for mechanical casting steel processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take by weight 100 parts of magnesia powder, 4 parts of barium metaborate, 0.5 part of water glass, 30 parts of N-methylpyrrolidone, 2 parts of activated bentonite, 25 parts of dimethyl formamide, 1 part of magnesium chloride, 5 parts of xylene, 0.1 part of barium chloride, 15 parts of polytetrafluoroethylene, 1 part of polyimide, 7 parts of ethyl acetate, 10 parts of aluminum paste, and 5 parts of iron oxide red.

[0023] Put magnesia powder, activated bentonite, magnesium chloride and barium chloride into the wheel mill, dry mix for 10 minutes, then add water glass, mix and grind for 10 minutes, polyimide, polytetrafluoroethylene, xylene, ethyl acetate and Put dimethylformamide into the reaction kettle and mix evenly, then mix with the raw materials after the second step of mixing and milling for 5 minutes, add the remaining raw materials, grind in the three-roller for 2 hours, and control the viscosity at 18s before use.

[0024] The relative density of the product i...

Embodiment 2

[0026] Take by weight 100 parts of magnesia powder, 16 parts of barium metaborate, 4.5 parts of water glass, 50 parts of N-methylpyrrolidone, 6 parts of activated bentonite, 45 parts of dimethyl formamide, 5 parts of magnesium chloride, 25 parts of xylene, 3 parts of barium chloride, 35 parts of polytetrafluoroethylene, 20 parts of polyimide, 13 parts of ethyl acetate, 30 parts of aluminum paste, and 15 parts of iron oxide red.

[0027] Put magnesia powder, activated bentonite, magnesium chloride and barium chloride into the wheel mill, dry mix for 30 minutes, then add water glass, mix and grind for 30 minutes, polyimide, polytetrafluoroethylene, xylene, ethyl acetate and Put dimethylformamide into the reaction kettle and mix evenly, then mix with the raw materials after the second step of mixing and milling for 10 minutes, add the remaining raw materials, grind in the three-roller for 4 hours, and control the viscosity at 20s before use.

[0028] The relative density of the p...

Embodiment 3

[0030]Take by weight 100 parts of magnesia powder, 8 parts of barium metaborate, 1.5 parts of water glass, 35 parts of N-methylpyrrolidone, 3 parts of activated bentonite, 28 parts of dimethyl formamide, 2 parts of magnesium chloride, 10 parts of xylene, 0.5 parts of barium chloride, 20 parts of polytetrafluoroethylene, 5 parts of polyimide, 8 parts of ethyl acetate, 15 parts of aluminum paste, and 9 parts of chromium oxide green.

[0031] Put magnesia powder, activated bentonite, magnesium chloride and barium chloride into the wheel mill, dry mix for 15 minutes, then add water glass, mix and grind for 15 minutes, polyimide, polytetrafluoroethylene, xylene, ethyl acetate and Put dimethyl formamide into the reaction kettle and mix evenly, then mix with the raw materials after the second step of mixing and milling for 6 minutes, add the remaining raw materials, grind in the three-roller for 2.5 hours, and control the viscosity at 19s before use.

[0032] The relative density of ...

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PUM

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Abstract

The invention discloses a heat insulation anti-sticking coating for mechanical cast steel machining and a preparation method of the heat insulation anti-sticking coating. The preparation method comprises the steps of weighing magnesia powder, meta-barium borate, water glass, N-methyl-2-pyrrolidinone, activated bentonite, dimethyl formamide, magnesium chloride, xylene, barium chloride, polytetrafluoroethylene, polyimide, ethyl acetate, aluminum paste and paint, feeding magnesia powder, activated bentonite and barium chloride into an edge runner, performing dry mixing, and adding water glass for mixed grinding; feeding polyimide, polytetrafluoroethylene, xylene, ethyl acetate and dimethyl formamide into a reaction kettle for uniform mixing to obtain a mixture, mixing the mixture with the mixed-ground raw materials, adding the rest of the raw materials, grinding the raw materials in a three-roller machine, and adjusting the viscosity. The relative density of a product is 16-18, and the product can be solidified at low temperature; the product can resist high temperature of 1,000-1,200 DEG C, cannot be separated, does not corrode metal equipment, protects steel materials from being oxidized, avoids decarbonization and can be widely produced to continuously replace the conventional material.

Description

technical field [0001] The invention relates to a paint for mechanical processing, in particular to a heat-insulating and anti-adhesive paint for mechanical casting steel processing and a preparation method thereof, belonging to the technical field of cast steel paint. Background technique [0002] Foundry coatings are the basic coatings for gravity-type metal casting and are suitable for all metal molds. The casting coating particles are relatively coarse, but it has good thermal insulation performance, which can prevent the casting from lack of meat and cold shut during casting. Suitable for thin section castings and large flat castings, also suitable for feed ports, hubs, pistons, connecting rods, cylinders, etc. In general, there are several methods of coating and hanging casting coatings, including brushing, dipping, showering, spraying or a combination of dipping. Among them, the dipping method has the advantages of high production efficiency, saving paint, uniform co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 陈凌王琰任琪程晓
Owner 珠海市龙圣模具材料有限公司
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