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Steel billet feeding cylinder and the method of making and repairing it

A technology of rollers and steel billets, which is applied in the field of conveying devices, can solve the problems of low service life of conveying rollers, and achieve the effects of good red hardness, not easy to wear, and long service life

Inactive Publication Date: 2004-03-17
王树敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a combined steel billet conveying roller with high hardness, high wear resistance and crack resistance for the problem that the parts of the roller are easy to wear. With different hardness of the roller body, the rollers that transmit motion during operation are only supported by tungsten carbide roller rings, so as to overcome the shortcoming of the low service life of the conveying rollers in the prior art

Method used

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  • Steel billet feeding cylinder and the method of making and repairing it
  • Steel billet feeding cylinder and the method of making and repairing it
  • Steel billet feeding cylinder and the method of making and repairing it

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Embodiment Construction

[0014] Such as Figure 1 to Figure 2 As shown, a roller for conveying steel billets is composed of a tungsten carbide roll ring 2 with holes and a base body 1. There is a solder 4 between the tungsten carbide roll ring 2 and the base body 1, and the tungsten carbide roll ring 2 is brazed to the base body 1. Above, the substrate 1 is made of cast steel, the unilateral thickness of the tungsten carbide roller ring 2 is 5 mm, the single-sided gap between the substrate 1 and the tungsten carbide roller ring 2 is 0.2 mm, and the roughness of the joint between the substrate 1 and the tungsten carbide roller ring 2 is ▽5. The main components of the tungsten carbide roll ring 2 are WC80% and Co20%. The hardness of the tungsten carbide roll ring 2 is HRA84.

[0015] A method for manufacturing and repairing a roller for conveying billets, brazing a tungsten carbide roller ring 2 on a substrate 1, the method is as follows:

[0016] 1) Cut 10mm in the diameter of the base body 1;

[00...

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Abstract

The present invention is the manufacture and repair of roller for conveying steel billet. The roller consists of basal body of cast steel or cast iron and roller ring, which is made of WC is braze welded onto the basal body and has hole. The manufacture and repair process includes machining the basal body, cleaning, and braze welding the WC roller ring to the basal body. Owing to the high hardness, especially the high red hardness of the roller ring, the roller has long service life, 10-15 times that of cast steel and cast iron ones. The roller is suitable for use in conveying steel billet in rolling mill and steel plant.

Description

technical field [0001] The invention relates to a roller for conveying steel slabs and its manufacturing and repairing methods, in particular to a roller for conveying steel slabs composed of a matrix and a tungsten carbide roller ring, which belongs to the technical field of conveying devices. Background technique [0002] The material of the rollers for conveying billets used in existing rolling mills and continuous casting machines in steelmaking plants is cast steel or cast iron, which is an integral structure, and the hardness of the whole roller body is the same, which brings a lot of inconvenience to the use of conveying rollers. On the one hand, due to the different positions of the rollers, the degree of wear is also different. The hardness of the suitable roller body should be different. The parts that are easy to wear should have high hardness, and the hardness of the parts that are not worn can be reduced. The rollers are low in hardness,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B39/02B22D11/128
Inventor 王树敏
Owner 王树敏
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