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High-stability furnace bottom roller

A high-stability, furnace bottom roller technology, applied in furnaces, furnace types, heat treatment furnaces, etc., can solve problems affecting normal production, loosening and peeling, furnace roller nodules, etc., to improve work efficiency, smooth and delicate surface, The effect of reducing thermal deformation

Inactive Publication Date: 2020-07-07
江苏亚太特种铸钢厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The quality of the hearth roll of the silicon steel continuous annealing furnace is one of the main factors affecting the operation rate and the surface quality of the product. Traditional graphite carbon sleeves and ceramic coated rolls are prone to roll surface oxidation, furnace roll nodules, looseness and peeling. Affect normal production

Method used

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Examples

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with embodiment.

[0013] The high-stability hearth roller includes a cylindrical roller body and a roller shaft; the roller body is a hollow roller body, and the outer body of the roller body is covered with a quartz ceramic sleeve, and heat insulation is provided between the quartz ceramic sleeve and the outer surface of the roller body. coating.

[0014] The heat-insulating coating is coated on the outer surface of the roller by flame spraying, and the heat-insulating coating is zirconia ZrO 2 , Yttrium oxide Y 2 o 3 or silicon oxide SiO 2 material, or a mixture of them, the thickness of the thermal insulation coating is 1.5-1.8 mm.

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Abstract

The invention discloses a high-stability furnace bottom roller comprising a cylindrical roller body and a roller shaft. The roller body is hollow, and the roller body is sleeved with a quartz ceramicsleeve. The high-stability furnace bottom roller is characterized in that a thermal insulation coating is arranged between the quartz ceramic sleeve and the outer surface of the roller body; the thermal insulation coating is made of zirconium oxide ZrO2 or yttrium oxide Y2O3 or silicon oxide SiO2 or a mixture material thereof, and the thickness of the thermal insulation coating is 1.5-1.8 mm; andthe outer surface of the roller body is coated with the thermal insulation coating through flame spraying. The high-stability furnace bottom roller is high in stability, resistant to high temperature,good in chemical stability, stable in high-temperature performance, free of deformation and good in wear resistance, and can improve the surface quality of a steel strip.

Description

technical field [0001] The invention relates to heat treatment equipment, in particular to a hearth roller for a silicon steel continuous annealing furnace. Background technique [0002] The quality of the hearth roll of the silicon steel continuous annealing furnace is one of the main factors affecting the operation rate and the surface quality of the product. Traditional graphite carbon sleeves and ceramic coated rolls are prone to roll surface oxidation, furnace roll nodules, looseness and peeling. affect normal production. Contents of the invention [0003] The invention aims at the deficiencies of the prior art, and provides a high-stability hearth roll which can significantly improve the surface stability of the roll surface. [0004] The present invention achieves technical goals through the following technical solutions. [0005] The high-stability hearth roll includes a cylindrical roll body and a roll shaft; the roll body is a hollow roll body, and the feature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/56C21D1/26C23C4/11C23C4/129
CPCC21D1/26C21D9/563C23C4/11C23C4/129
Inventor 贲启轩
Owner 江苏亚太特种铸钢厂有限公司
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