Periclase-forsterite high-temperature spray coating

A technology of forsterite and periclase, which is applied in the field of refractory materials, can solve problems such as damage, lining peeling, and difficult maintenance of the converter side, and achieve the goals of reducing melting loss, reducing dosage, good physical properties and high-temperature performance Effect

Pending Publication Date: 2021-12-28
RUITAI MATERIALS TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In high-temperature industrial production, refractory materials are indispensable supporting materials, especially in the steelmaking process, various furnaces, including ladles, converters, tundishes and other high-temperature furnaces, will have different degrees of lining in the production process Peeling and damage, especially for steel-making converters. At present, large-surface hot repair materials are generally used to maintain the feeding side, furnace bottom and tapping side of the converter, but the slag lines and trunnions on the side of the converter are difficult to maintain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Present invention provides a periclase - forsterite high temperature spray coating, to the mass percentage of said raw material composition: The burned magnesia particle size 0.8-0.3mm 36% dead burned magnesite particle size of 0.3-0.088mm sand 20%, particle size <0.088mm 26% dead burned magnesite; ≤0.044mm particle size of silicon metal powder 8%; particle size <0.088mm 10% graphite or coke composition.

Embodiment 2

[0023] Present invention provides a periclase - forsterite high temperature spray coating, to the mass percentage of said raw material composition: The burned magnesia particle size 0.8-0.3mm 30%, particle size of the dead burned magnesite 0.3-0.088mm 18% sand, burned magnesia particle size of <33% of 0.088mm; ≤0.044mm silicon metal powder particle size of 11%; particle size of <8% 0.088mm graphite or coke composition.

Embodiment 3

[0025] Present invention provides a periclase - forsterite high temperature spray coating, to the mass percentage of said raw material composition: The burned magnesia particle size 0.8-0.3mm 28% dead burned magnesite particle size of 0.3-0.088mm sand 27%, particle size <0.088mm 32% dead burned magnesite; ≤0.044mm particle size of silicon metal powder 9%; particle size <0.088mm 4% graphite or coke composition.

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PUM

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Abstract

The invention provides a periclase-forsterite high-temperature spray coating. The raw materials of the spray coating comprise dead burnt magnesia, metal silicon powder, graphite or coke. The periclase-forsterite high-temperature spray coating has good high-temperature performance, can be used for high-temperature spray coating of a steel furnace lining and prolongs the service life of a kiln; and in a spray supplementing process, the raw materials are low in rebound rate, the spray coating causes less pollution to molten steel, and the spray coating is high in safety, and has a good application prospect.

Description

Technical field [0001] The present invention belongs to the technical field of refractories, particularly, to a periclase - forsterite high temperature spray coating. Background technique [0002] Industrial production at a high temperature, refractory support material is essential, especially in the steelmaking process, including the various ladle furnace, converter, tundish high-temperature furnace, in the production process will be varying degrees of liner spalling, damage phenomena, in particular steel converters, now widely used for large area hot repairing material feeding side of the converter, the steel side and the bottom for maintenance, but the slag line side converter trunnion and difficult to maintain. Therefore, a need to develop a steelmaking converter slag line and the side parts of the trunnion hot patching material. Inventive content [0003] The present invention is to solve the technical problem are: to provide a periclase - forsterite high temperature spray ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/043B05B7/02
CPCC04B35/043B05B7/02C04B2235/428C04B2235/425C04B2235/422C04B2235/96C04B2235/9607
Inventor 徐琳琳胡建辉尹超男王俊涛王杰曾徐如林闫昕魏瀚
Owner RUITAI MATERIALS TECHNOLOGY CO LTD
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