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Coating for converter slag-stopping sliding brick and preparation method thereof

A converter slag blocking and sliding brick technology, which is applied in the direction of coating, can solve the problems affecting the performance and life of the coating, and achieve the effects of prolonging the service life, enhancing the strength and high wear resistance

Active Publication Date: 2022-03-29
MAANSHAN LIER KAIYUAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem in the prior art that titanium-silicon-carbon-based materials are used as coating titanium-silicon-carbon and substrate materials react too much to cause too much decomposition of titanium-silicon-carbon to affect the performance and life of the coating, the present invention provides a coating for converter slag blocking sliding bricks, The resulting coating has a long service life, good lubricity, high oxidation resistance and low friction coefficient during high temperature use, and can keep the sliding surface of the material running stably for a long time to prevent sticking to steel and slag

Method used

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  • Coating for converter slag-stopping sliding brick and preparation method thereof
  • Coating for converter slag-stopping sliding brick and preparation method thereof
  • Coating for converter slag-stopping sliding brick and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] A kind of coating for converter slag retaining slide brick of the present embodiment, the mass fraction of its component is:

[0039] 20 parts of modified flake graphite; 5 parts of titanium silicon carbon; 5 parts of silicon carbide; 5 parts of styrene-acrylic emulsion; 0.2 parts of carboxymethyl cellulose; 5 parts of solid dihydrogen phosphate Aluminum; 0.2 parts of polyvinylpyrrolidone; 0.2 parts of Cathone; 0.1 parts of propylene oxide; 0.5 parts of sodium bentonite and 85 parts of deionized water.

[0040] Specifically, using the above-mentioned raw materials to prepare the method for preparing the coating for the converter slag-stopping sliding brick of this embodiment, the steps are:

[0041] (1) Prepare the matrix mixed powder: mix the matrix mixed powder according to the ratio of raw materials by mass, add 20 parts of graphite, 5 parts of titanium silicon carbon and 5 parts of silicon carbide to the planetary ball mill for ball milling and mixing Dispersion, b...

Embodiment 2

[0046] A kind of coating for converter slag retaining slide brick of the present embodiment, the mass fraction of its component is:

[0047] 23 parts of modified flake graphite; 7 parts of titanium silicon carbon; 6 parts of silicon carbide; 6 parts of ethylene glycol; 0.3 parts of sodium polyacrylate; 8 parts of magnesium phosphate; 0.4 parts Tween; 0.3 parts of potassium sorbate; 0.2 parts of propylene oxide; 0.6 parts of polyethylene glycol and 87.5 parts of deionized water.

[0048] Specifically, using the above-mentioned raw materials to prepare the method for preparing the coating for the converter slag-stopping sliding brick of this embodiment, the steps are:

[0049] (1) Prepare the matrix mixed powder: mix the matrix mixed powder according to the ratio of raw materials by mass, add 23 parts of graphite, 7 parts of titanium silicon carbon and 6 parts of silicon carbide to the planetary ball mill for ball milling and mixing Dispersion, ball milling time is 1 to 2 hours...

Embodiment 3

[0054] A kind of coating for converter slag retaining slide brick of the present embodiment, the mass fraction of its component is:

[0055] 25 parts of modified flake graphite; 9 parts of titanium silicon carbon; 7 parts of silicon carbide; 7 parts of styrene-acrylic emulsion; 0.5 parts of polyacrylamide; 10 parts of magnesium phosphate; 0.6 parts Tween; 0.5 parts of benzoic acid; 0.3 parts of polydimethylsilane; 0.7 parts of xanthan gum and 90 parts of deionized water.

[0056] Specifically, using the above-mentioned raw materials to prepare the method for preparing the coating for the converter slag-stopping sliding brick of this embodiment, the steps are:

[0057] (1) Prepare the matrix mixed powder: mix the matrix mixed powder according to the ratio of raw materials by mass, add 25 parts of graphite, 9 parts of titanium silicon carbon and 7 parts of silicon carbide to the planetary ball mill for ball milling and mixing Dispersion, ball milling time is 1 to 2 hours;

[0...

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Abstract

The invention discloses a coating for a converter slag-stopping sliding brick and a preparation method thereof, belonging to the field of coatings. The coating for converter slag blocking sliding bricks includes 5-10 parts of titanium silicon carbon, 20-30 parts of graphite, 2-5 parts of silicon carbide, 5-10 parts of film-forming agent, 0.2-0.5 parts 0.1 to 0.3 parts of antifoaming agent, 0.2 to 0.6 parts of dispersant, 0.2 to 0.5 parts of thickener, 5 to 10 parts of binder, 0.5 to 1 part of Suspending agent and 85-95 parts of dispersing carrier. Through the interaction between the components, the coating prepared by this method has good lubricity, and at the same time has high oxidation resistance, low friction coefficient and long service life during high temperature use, and can keep the material in the The sliding surface runs stably for a long time to prevent sticking to steel and slag.

Description

technical field [0001] The invention belongs to the field of coatings, and more specifically relates to a coating for converter slag-stopping sliding bricks and a preparation method thereof. Background technique [0002] The converter sliding plate slag blocking technology was seen by the inspection team in Satzgitter Steel Works, Germany in 2002, and was developed in Fujian Sanming Iron and Steel Company Steel Plant in 2006. It was used in converter steelmaking production and showed good slag blocking effect , the working principle is the same as the ladle sliding nozzle, and the oil cylinder is used to control the closing of the switch of the sliding plate nozzle to quickly and accurately block the slag in the early stage and late stage of tapping. Thereby greatly reducing the amount of slag during the tapping process of the converter, improving the quality of molten steel, improving the cleanliness of molten steel, reducing the return of phosphorus and sulfur in molten st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D1/00C09D7/61
CPCC09D125/14C09D1/00C09D7/61C08K2201/005C08K13/06C08K3/04C08K3/34
Inventor 徐昆波原慧张远红余西平赵锋赵安堂
Owner MAANSHAN LIER KAIYUAN NEW MATERIAL
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