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A kind of high wear-resistant and high anti-oxidation skateboard coating and its preparation process

A technology with high wear resistance and sliding plate, applied in the direction of coating, etc., can solve the problems of high oxidation risk, consumption of graphite lubricating coating, poor high temperature oxidation performance of carbon materials, etc., and achieve the effect of simple production process, saving time and space

Active Publication Date: 2021-12-31
YIXING REFRACTORY MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN106189386A (a skateboard paint and its preparation method) discloses a skateboard paint that uses expanded graphite and graphene as solid powders. Although graphite has excellent anti-slag erosion properties, it also has good lubricating properties and has a high melting point. properties, but the high-temperature oxidation performance of graphite-based carbon materials is poor. Flake graphite will be oxidized obviously when the temperature is higher than 400 ° C, resulting in the rapid consumption of graphite lubricating coating on the surface of the slide. The specific surface area of ​​expanded graphite and graphene is large, and the risk of oxidation is greater. high
Both of the above are carbon raw materials containing flake graphite or graphene and carbon black. The problem of high temperature oxidation cannot be eliminated. With the formation of pores by oxidation and decarburization, the technical risk of clamping steel will increase sharply.
CN102660370A (high-temperature lubricant and its preparation process) discloses a high-temperature lubricant with graphite powder, xanthan gum, hexagonal boron nitride, and aluminum dihydrogen phosphate as the main solid components. In order to overcome the problem of graphite oxidation, the graphite powder is plated Nickel treatment, but the nickel plating process is very complicated, the waste liquid pollutes the environment, and the subsequent harmless treatment of the waste liquid is difficult. Therefore, this kind of skateboard coating has a long process flow, high production costs, difficult harmless treatment, and environmental protection. The general trend is contrary, which limits its large-scale application
CN103509641A (hexagonal boron nitride-based skateboard lubricant and preparation method thereof) discloses a skateboard coating with hexagonal boron nitride, carbon black, and silica sol as main components. Although hexagonal boron nitride has a layered structure similar to graphite, it has good Lubricating performance, but used as a skateboard coating, oxidized to boron oxide at high temperature, will inevitably lead to a decrease in self-lubricating effect

Method used

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  • A kind of high wear-resistant and high anti-oxidation skateboard coating and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In parts by mass, mix 2 parts of binder (1:1:1 polyurethane:polyurea:boron-doped polysiloxane mixture) and 1 part of dispersant (1:1 ratio of N-methylpyrrolidone and Styrene phenol formaldehyde resin polyoxyethylene ether phosphate salt mixture) dissolved in 60 parts of industrial alcohol and 3 parts of ethylene glycol mixture, heated to 60 ° C and boiled for 10 minutes, poured 15 parts of solid powder (the particle size is A mixture of silicon carbide, molybdenum carbide, boron carbide, and tungsten carbide in equal parts by mass of 1~2μm). A stirring mill was used to stir at a speed of 500 rpm for 2 h at a high speed, then ultrasonically stirred for 30 min, and then stirred at a speed of 50 rpm for 20 min.

[0020] Table 1 has listed the specific formula and technology and its performance and use effect of implementation example 1.

Embodiment 2

[0022] In parts by mass, 3 parts of binder (1:1:1 polyurethane:polyurea:boron-doped polysiloxane mixture) and 1.5 parts of dispersant (1:1 ratio of N-methylpyrrolidone and Styrene phenol formaldehyde resin polyoxyethylene ether phosphate salt mixture) was dissolved in a mixture of 65 parts of industrial alcohol and 3 parts of ethylene glycol, heated to 60°C and boiled for 20 minutes, then poured into 20 parts of solid powder (the particle size is A mixture of silicon carbide, molybdenum carbide, boron carbide, tungsten carbide, molybdenum silicide, zirconium boride, and hexagonal boron nitride in equal parts by mass of 1~2μm). A stirring mill was used to stir at a high speed of 1000 rpm for 1.5 h, then ultrasonically stirred for 60 min, and then stirred at a speed of 100 rpm for 10 min.

[0023] Table 1 has listed concrete formula and technology and its performance and use effect of implementation example 2.

Embodiment 3

[0025] In parts by mass, 2.5 parts of binder (1:1:1 polyurethane:polyurea:boron-doped polysiloxane mixture) and 1.8 parts of dispersant (1:1 ratio of N-methylpyrrolidone and Styrene phenol formaldehyde resin polyoxyethylene ether phosphate salt mixture) dissolved in the mixture of 70 parts of industrial alcohol and 4 parts of ethylene glycol, heated to 60 ℃ and boiled for 15 minutes, poured 25 parts of solid powder (material particle size uniform It is a mixture of tungsten carbide, molybdenum silicide, zirconium boride and hexagonal boron nitride in equal parts by mass of 1~2μm). A stirring mill was used to stir at a speed of 750 rpm for 1.5 h at a high speed, then ultrasonically stirred for 45 min, and then stirred at a speed of 60 rpm for 15 min.

[0026] Table 1 has listed concrete formula and technology and its performance and use effect of implementation example 3.

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Abstract

The invention relates to a highly wear-resistant and high-oxidation-resistant skateboard coating, which belongs to the field of inorganic non-metallic materials. In parts by mass, the high wear-resistant and high-oxidation-resistant skateboard coating of the present invention consists of 15-45 parts of solid powder, 2-3 parts of binder, 1-2 parts of dispersant, 60-80 parts of industrial alcohol, 3-5 parts of parts of ethylene glycol. The production process of the skateboard coating of the present invention is simple, and the solvent, the binder, the dispersant and the solid powder can be fully mixed with a high-speed stirring mill and ultrasonic stirring; spraying on the skateboard has good ductility, and can fill the pores on the surface of the skateboard evenly and bond the skateboard It has high strength, high wear resistance and high oxidation resistance, which can significantly improve the lubricity, wear resistance and oxidation resistance of the skateboard, and increase the service life of the skateboard.

Description

technical field [0001] The invention relates to a skateboard coating with high wear resistance and high oxidation resistance, which belongs to the field of high-temperature ceramics and refractory materials in the discipline of inorganic non-metallic materials. The sliding board paint of the invention can enhance the wear resistance, lubricity and oxidation resistance of the continuous casting sliding board, increase the sliding times of the sliding board, and prolong the service life of the sliding board. Background technique [0002] In the continuous casting production process, the sliding nozzle system is an important control device for molten steel in the casting process of the continuous casting machine. It can accurately adjust the flow of molten steel from the ladle to the tundish, so that the inflow and outflow of molten steel can be balanced. Although the slide plate must have the characteristics of high temperature resistance, high strength, good corrosion resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/65C09D7/63C09D7/48C09D7/20
CPCC09D1/00C09D7/65C09D7/63C09D7/48C09D7/20
Inventor 陈松林何方蒋正跃钱能宋云阶刘士范俞永平袁彪
Owner YIXING REFRACTORY MATERIAL
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