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Preparation method of titanium silicon carbide ceramic nozzle

A ceramic nozzle, silicon titanium carbon technology, applied in the field of refractory ceramic nozzles, to achieve the effect of reducing thermal expansion coefficient, improving thermal stability and refractory performance, and optimizing the preparation process

Inactive Publication Date: 2016-11-23
CHENGDU YUYA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many methods and types for preparing ceramic nozzles, with the demand for high-tech, the requirements for various performances of ceramic nozzles are getting higher and higher, especially in the performance of high temperature resistance and crack resistance. improve

Method used

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  • Preparation method of titanium silicon carbide ceramic nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of a silicon titanium carbon ceramic nozzle,

[0026] Including following preparation steps:

[0027] Prepare the nozzle raw material, the raw material composition of the nozzle is: 35 parts of silicon titanium carbon powder; 35 parts of corundum; 5 parts of Al-Ti alloy powder; 2 parts of phenolic resin; 2 parts of carbon tetraboride; 2 parts of silicon carbide;

[0028] Put the raw materials into the ball mill barrel and mill for 24 hours, the ball milling speed is 100r / min, the balls are YG8 hard alloy, including 6mm and 12mm balls, the ratio of big and small balls is 3:1; during ball milling, the ball-to-material ratio is 20:1; the ball milling medium is deionized water;

[0029] Pour the ball-milled slurry into a stainless steel mold with holes around it, let it stand for 1 hour, then use vacuum filtration to remove moisture, and then carry out static pressure molding with a molding pressure of 15MPa;

[0030] Put the green body into a vacuum ...

Embodiment 2

[0035] A preparation method of a silicon titanium carbon ceramic nozzle,

[0036] Including following preparation steps:

[0037] Prepare the nozzle raw material, the raw material composition of the nozzle is: 30 parts of silicon titanium carbon powder; 30 parts of corundum; 5 parts of Al-Ti alloy powder; 3 parts of phenolic resin; 2 parts of carbon tetraboride; 3 parts of silicon carbide;

[0038] Put the raw materials into the ball mill barrel and mill for 24 hours, the ball milling speed is 100r / min, the balls are YG8 hard alloy, including 6mm and 12mm balls, the ratio of big and small balls is 3:1; during ball milling, the ball-to-material ratio is 20:1; the ball milling medium is deionized water;

[0039] Pour the ball-milled slurry into a stainless steel mold with holes around it, let it stand for 1 hour, then use vacuum filtration to remove moisture, and then carry out static pressure molding with a molding pressure of 15MPa;

[0040] Put the green body into a vacuum dr...

Embodiment 3

[0045] A preparation method of a silicon titanium carbon ceramic nozzle,

[0046] Including following preparation steps:

[0047] Prepare the nozzle raw material, the raw material composition of the nozzle is: 40 parts of silicon titanium carbon powder; 40 parts of corundum; 7 parts of Al-Ti alloy powder; 7 parts of phenolic resin; 1 part of carbon tetraboride; 1 part of silicon carbide;

[0048] Put the raw materials into the ball mill barrel and mill for 24 hours, the ball milling speed is 100r / min, the balls are YG8 hard alloy, including 6mm and 12mm balls, the ratio of big and small balls is 3:1; during ball milling, the ball-to-material ratio is 20:1; the ball milling medium is deionized water;

[0049] Pour the ball-milled slurry into a stainless steel mold with holes around it, let it stand for 1 hour, then use vacuum filtration to remove moisture, and then carry out static pressure molding with a molding pressure of 15MPa;

[0050] Put the green body into a vacuum dr...

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Abstract

The invention relates to a preparation method of a titanium silicon carbide ceramic nozzle. The preparation method comprises the following steps: optimizing raw materials of the titanium silicon carbide ceramic nozzle; using titanium silicon carbide powder and corundum as main raw materials; using Al-Ti alloy powder, phenolic resin, carbon tetraboride and silicon carbide as auxiliary materials. Meanwhile, in the process of preparation, large and small milling balls are used for mixed ball-milling; the suction filtration molding and a pre-boiling water quenching process are adopted to improve physical and chemical properties of prepared products; the prepared ceramic nozzle has good thermal stability, high compressive capacity, high corrosion resistance and difficult cracking.

Description

technical field [0001] The invention belongs to the field of refractory ceramic nozzles, in particular to a method for preparing a silicon-titanium-carbon ceramic nozzle. Background technique [0002] The nozzle is a key part, even the main part, of many kinds of spraying, spraying, oil spraying and sandblasting equipment. Nozzles are widely used in various industries such as machinery, petroleum, chemical industry, automobiles, ships, aerospace, metallurgy, and coal. one of the key components. The nozzle can be used in conjunction with various dry or wet sandblasting machines, shot blasting machines, and cutting machines. Powered by compressed air or liquid, the abrasive is sprayed onto the surface of the part at high speed through the nozzle of the spray gun to achieve the purpose of surface treatment. The scope of use of nozzles covers almost all machinery manufacturing enterprises, and its demand is huge. Almost all construction machinery factories need to use sandbla...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/10C04B35/565C04B35/622
CPCC04B35/66C04B35/10C04B35/565C04B35/622C04B2235/3804C04B2235/3826C04B2235/402C04B2235/404C04B2235/96
Inventor 刘丽梅
Owner CHENGDU YUYA TECH
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