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Corrosion-resistant and enhanced furnace bottom roller

An enhanced type, hearth roller technology, applied in furnaces, furnace types, heat treatment furnaces, etc., can solve problems such as structural strength, poor rigidity, deformation, and affecting conveying quality, so as to achieve good corrosion resistance, improve conveying quality, and reliable connection Effect

Inactive Publication Date: 2017-05-10
王秋林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The hearth roller of the annealing furnace includes a roller and a roller shaft connected to both ends of the roller. The roller shaft is inserted into the end of the roller to form a fit and fixed connection. The roller is a cylindrical cylinder. The hearth roller of this structure The structural strength and rigidity are poor (especially in the middle part), and it is easy to produce large deformation under the action of the gravity of the conveying steel plate during use, which affects the conveying quality

Method used

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  • Corrosion-resistant and enhanced furnace bottom roller
  • Corrosion-resistant and enhanced furnace bottom roller

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Embodiment Construction

[0021] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0022] The corrosion-resistant enhanced hearth roll shown in the accompanying drawings includes a roll 1 and a roll shaft 2 connected to both ends of the roll 1; the roll shaft 2 is inserted into the end of the roll 1 to form a fit and fixed connection; the roll 1, the roll The matching part of shaft 2 is provided with two positioning pins 3 radially penetrating through the matching parts of roller 1 and roller shaft 2, one of which partly runs through the other positioning pin 3, and the two ends of positioning pin 3 The welding is fixedly connected in the positioning hole of the roller 1.

[0023] The wall thickness of the roller 1 between the roller shafts 2 at both ends is thicker as it gets closer to the axial centerline of the roller 1. In this embodiment, the axial section of the inner wall of the roller 1 is an arc-shaped curved...

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Abstract

The invention discloses a corrosion-resistant and enhanced furnace bottom roller. The roller comprises a roller body and roller shafts connected at two ends of the roller body; the roller shafts are inserted into the ends of the roller body to be matched and fixedly connected; the closer the wall of the roller body between the roller shafts at the two ends is to the axial central line of the roller body, the thicker the wall thickness is; the roller is further improved in that the axial section of the inner wall of the roller body is an arc-shaped curved surface; a metal ceramic coating is arranged on the outer wall of the roller body and comprises a bottom coating sprayed onto the outer wall of the roller body, a working layer sprayed onto the bottom coating and a sealing layer sprayed onto the working layer; two positioning hinge pins which radially penetrate through matched parts of the roller body and the roller shafts are arranged at the matched parts of the roller body and the roller shafts; and one positioning hinge pin partially penetrates through the other positioning hinge pin. The roller is high in structural strength, high-temperature-resistant, corrosion-resistant, low in thermal expansion, good in chemical stability, stable in high-temperature performance, free of deformation, good in wear resistance and high in conveying quality.

Description

technical field [0001] The invention relates to a hearth roll of an annealing furnace. Background technique [0002] The hearth roller of the annealing furnace includes a roller and a roller shaft connected to both ends of the roller. The roller shaft is inserted into the end of the roller to form a fit and fixed connection. The roller is a cylindrical cylinder. The hearth roller of this structure The structural strength and rigidity are poor (especially the middle part), and it is easy to produce large deformation under the gravity of the conveying steel plate during use, which affects the conveying quality. Contents of the invention [0003] The invention aims at the deficiencies of the prior art, and provides a corrosion-resistant enhanced hearth roller which can significantly improve the structural rigidity and strength of the roller, thereby significantly reducing the deformation during use and significantly improving the conveying quality. [0004] The present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/26C21D9/00C23C4/126C23C4/11C23C4/08
CPCC21D1/26C21D9/0012C23C4/08
Inventor 王秋林
Owner 王秋林
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