A preparation method of cast-infiltration coating and preparation method of cast-infiltration coating

A technology of cast infiltration and coating, which is applied in the direction of coating, casting molding equipment, casting molds, etc., can solve the problems of heat resistance, suspension brushing, adhesion and poor leveling, etc., to prevent sand sticking defects, Moderate viscosity, good suspension effect

Active Publication Date: 2020-09-29
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor heat resistance, suspension, brushability, adhesion and leveling of cast-infiltrated coatings in the prior art, the invention provides a preparation method of cast-infiltrated coatings and a preparation method of cast-infiltrated coatings

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0036]An embodiment of the present invention provides a cast-infiltration coating for iron-based composite materials, which includes the following raw material components in mass percentages: 1.8% rosin resin, 1.1% phenolic resin, 0.5% polyvinyl butyral, 1.0% organic bentonite, 120 # Solvent oil 5.0%, silicon carbide 11%, ferrochrome powder 10%, and the balance is absolute ethanol.

[0037] Among them, the particle size of silicon carbide is 80 mesh, the ferrochrome powder is low-carbon ferrochrome powder, the chromium content is 22-26%, and the particle size is 200 mesh.

[0038] The preparation steps of the cast-infiltration coating for the above-mentioned iron-based composite material are as follows:

[0039] Step a, preparation of resin solution: add the weighed resole phenolic resin into 4wt% ethanol, stir for 3-5min to obtain the phenolic resin solution, then grind the weighed rosin resin into powder, and then mix it with 10g / min speed into the phenolic resin solution, ...

Embodiment 2

[0046] An embodiment of the present invention provides a cast-infiltration coating for iron-based composite materials, which includes the following raw material components in mass percentages: rosin resin 2.0%, phenolic resin 0.9%, polyvinyl butyral 0.4%, organic bentonite 1.2%, 120 # Solvent oil 6.0%, silicon carbide 12%, ferrochrome powder 12%, and the balance is absolute ethanol.

[0047] Among them, the particle size of silicon carbide is 70 mesh, the ferrochrome powder is low-carbon ferrochrome powder, the chromium content is 22-26%, and the particle size is 100 mesh.

[0048] The preparation steps of the cast-infiltration coating for the above-mentioned iron-based composite material are as follows:

[0049] Step a, preparation of resin solution: add the weighed resole phenolic resin into 5wt% ethanol, stir for 3-5min to obtain a phenolic resin solution, then grind the weighed rosin resin into powder, and then grind it at a speed of 10g / min Added in the phenolic resin so...

Embodiment 3

[0056] An embodiment of the present invention provides a cast-infiltration coating for iron-based composite materials, which includes the following raw material components in mass percentages: rosin resin 2.2%, phenolic resin 1.0%, polyvinyl butyral 0.6%, organic bentonite 1.5%, 120 # Solvent oil 4.0%, silicon carbide 13%, ferrochrome powder 8%, and the balance is absolute ethanol.

[0057] Among them, the particle size of silicon carbide is 100 mesh, the ferrochrome powder is low-carbon ferrochrome powder, the chromium content is 22-26%, and the particle size is 250 mesh.

[0058] The preparation steps of the cast-infiltration coating for the above-mentioned iron-based composite material are as follows:

[0059] Step a, preparation of resin solution: add the weighed resole phenolic resin into 7wt% ethanol, stir for 3-5min to obtain a phenolic resin solution, then grind the weighed rosin resin into powder, and then mix it at 10g / min speed into the phenolic resin solution, and...

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PUM

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Abstract

The invention discloses casting infiltration coating used for a ferrous matrix composite, a preparation method, and a method for preparing a casting infiltration coat by means of the casting infiltration coating. The casting infiltration coating comprises the following components including 1.8-2.2% of rosin resin, 0.9-1.1% of phenolic resin, 0.4-0.6% of polyvinyl butyral, 1.0-1.5% of organobentonite, 4.0-6.0% of solvent naphtha, 11-13% of silicon carbide, 8-12% of ferrochromium powder and the balance absolute ethyl alcohol. The casting infiltration coating used for the ferrous matrix compositehas the advantages of good suspension property, high strength and good breathability and levelling property, and meanwhile, coating is moderate in viscosity and good in brushability. According to detecting results, the viscosity change rate based on change of the rotating speed is above 0.057, the 2h suspension property is above 99.9%, the 24h suspension property reaches above 87.6%, the shakeoutflushing amount is above 0.14, the breathability can reach above 2.0, and the levelling property reaches above 510 mm.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a method for preparing cast-infiltrated coatings and a method for preparing cast-infiltrated coatings. Background technique [0002] A composite material is composed of two or more materials, usually with completely different properties, forming a state of complementary performance, and finally a material composed of an optimized combination. According to the different matrix materials, composite materials are usually divided into three categories, namely resin matrix composites (PMCs), metal matrix composites (MMCs), and ceramic matrix composites (CMCs). Compared with other composite materials, metal matrix composites have become a research hotspot in recent years due to their advantages such as high strength, high elastic modulus, good high temperature performance and fatigue resistance, good wear resistance and dimensional stability. [0003] The infiltration method is an im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C3/00B22D27/18
CPCB22C3/00B22D27/18
Inventor 谭建波王子一
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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