Preparation method of SiC/ZrO2 protective coating

A technology of protective coating and mass parts, applied in the field of preparation of SiC/ZrO2 protective coating, can solve the problems of high requirement of supercritical drying device, high production cost, low production efficiency, etc., so as to save sintering process and energy consumption cost. low, high productivity

Inactive Publication Date: 2019-04-16
GUANGDONG UNIV OF PETROCHEMICAL TECH
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this method for the prepared SiC / ZrO 2 Composite materials, due to the cumbersome process of the sol-gel method, the mixing uniformity is affected by CO 2 Constraints on the supercritical drying process, the CO 2 The supercritical drying device has high requirements, its production cost is high, the production efficiency is low, and the product consistency problem is worthy of discussion and consideration; moreover, the safety hazards of the supercritical state negative pressure generator and air generator for pressure cannot be ignored

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of SiC/ZrO2 protective coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the present invention discloses a SiC / ZrO 2 The preparation method of protective coating comprises the following steps:

[0027] The first step, raw material premixing treatment, respectively weigh 35 parts by mass of micron-sized zirconia, 0.6 parts by mass of micron-sized molybdenum disulfide, 28 parts by mass of polycarbosilane precursor and 31.4 parts by mass of ethanol according to the mass fraction The solutions were put into vacuum ball mill jars respectively, and mixed evenly. The vacuum milling jar can be selected from an agate vacuum milling jar, a corundum vacuum milling jar, a zirconia vacuum milling jar or a cemented carbide vacuum milling jar as required;

[0028] The second step, vacuum ball milling treatment, vacuumize the vacuum ball milling tank after the raw material premixing treatment, add grinding balls, control the mass ratio of balls and materials to 9:1, and use planetary ball mill wet ball milling for 2 hours for co...

Embodiment 2

[0031] Such as figure 1 As shown, the present invention discloses a SiC / ZrO 2 The preparation method of protective coating comprises the following steps:

[0032] The first step, raw material premixing treatment, respectively weigh 55 parts by mass of micron-sized zirconia, 0.3 parts by mass of micron-sized molybdenum disulfide, 38 parts by mass of polycarbosilane precursor and 8.5 parts by mass of ethanol according to the mass fraction The solutions were put into vacuum ball mill jars respectively, and mixed evenly. The vacuum milling jar can be selected from an agate vacuum milling jar, a corundum vacuum milling jar, a zirconia vacuum milling jar or a cemented carbide vacuum milling jar as required;

[0033] The second step, vacuum ball milling treatment, vacuumize the vacuum ball milling tank after the raw material premixing treatment, add grinding balls, control the mass ratio of balls and materials to 5:1, and use planetary ball mill wet ball milling for 3 hours for conti...

Embodiment 3

[0036] Such as figure 1 As shown, the present invention discloses a SiC / ZrO 2 The preparation method of protective coating comprises the following steps:

[0037] The first step, raw material premixing treatment, respectively weigh 60 mass parts of micron-sized zirconia, 0.4 mass parts of micron-sized molybdenum disulfide, 25 mass parts of polycarbosilane precursor and 14.6 mass parts of ethanol according to mass fraction The solutions were put into vacuum ball mill jars respectively, and mixed evenly. The vacuum milling jar can be selected from an agate vacuum milling jar, a corundum vacuum milling jar, a zirconia vacuum milling jar or a cemented carbide vacuum milling jar as required;

[0038] The second step is vacuum ball milling. Vacuumize the vacuum ball mill tank after the raw material premixing process, add balls, control the mass ratio of balls and materials to 3:1, and use planetary ball mill wet ball milling for 4 hours for continuous reaction. In the process of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a SiC/ZrO 2 protective coating. The method includes the following steps that 1, raw material pre-mixing treatment is performed, wherein 32-85 parts by mass of micrometer-grade zirconia, 0.1-0.6 part by mass of micrometer-grade molybdenum disulfide, 12-38 parts by mass of polycarbosilane precursors and 5-35 mass parts of ethanol solution are weighed and put into a vacuum ball mill tank respectively, and uniform mixing is conducted; 2, vacuum ball milling is conducted, wherein the vacuum ball mill tank is vacuumized after raw material pre-mixing treatment, and a planetary ball mill is used for wet ball milling for 2-4 hours for continuous reaction; 3, discharge treatment is conducted, wherein cooling by reducing temperature is performed after the continuous reaction of the second vacuum ball mill treatment is completed, pressure relief, discharge and drying are conducted on the vacuum ball mill tank, ethyl alcohol is removed, and the SiC/ZrO2 protective coating can be obtained. The method has the advantages of low energy consumption, high production efficiency, good product consistency and small potential safety hazards.

Description

technical field [0001] The present invention relates to SiC / ZrO 2 Technical field of protective coating, specifically a SiC / ZrO 2 Preparation method of protective coating. Background technique [0002] The forging process is an important link in industrial production. At present, the service life of the forging die accounts for 20% of the cost of the entire forging product. The hot work die steel is used in a large amount as a forging die material. The hardness requirement of the hot work die steel is appropriate. Focus on red hardness, thermal conductivity, wear resistance. Therefore, the carbon content is low, and the alloying elements are mainly to increase hardenability, wear resistance and red hardness. Steel for hot work die steel is an alloy steel mainly composed of metal elements such as Cr, Ni, Mo, V, W and Ti. Hot work die steel should have good mechanical properties, good fatigue resistance, oxidation resistance, corrosion resistance, wear resistance and machi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/977C01G25/02
CPCC01G25/02C01P2004/80C01P2006/10C01P2006/12C01P2006/32C01B32/977Y02P20/10
Inventor 马李何录菊
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap