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Method and special device for relieving steel pipe heat treatment curvature

A special device and bending technology, which is applied in the heat treatment field of the steel pipe manufacturing industry, can solve the problems of long production process and investment in bending and straightening, and achieve the effects of increasing bending, reducing equipment investment, and shortening the length of the production process

Inactive Publication Date: 2019-02-01
烟台鲁宝钢管有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention mainly solves the problems that existing steel pipe heat treatment is easy to cause bending and subsequent straightening requires large investment and long production process

Method used

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  • Method and special device for relieving steel pipe heat treatment curvature
  • Method and special device for relieving steel pipe heat treatment curvature
  • Method and special device for relieving steel pipe heat treatment curvature

Examples

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Embodiment 1

[0019] Example 1, see figure 1 , 2 3. Select the appropriate conveying roller table 1 and the lifting and rotating roller mechanism 2 according to the design requirements, and install the lifting and rotating roller mechanism 2 between the conveying roller tables 1. The lifting and rotating roller mechanism 2 includes the lifting mechanism 8 at the bottom. The active rotating roller 3 and the passive rotating roller 4 are installed on the lifting mechanism 8, and the lifting mechanism 8 drives the active rotating roller 3 and the passive rotating roller 4 to lift, and the active rotating roller 3 is connected with the transmission mechanism 10 through the driving sprocket 9 to drive the active rotating roller 3 rotation, the active rotating roller 3 drives the passive rotating roller 4 to rotate; place a steel pipe 6 on the active rotating roller 3 and the passive rotating roller 4, and install an atomizing spray at the position corresponding to the steel pipe 6 above the acti...

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Abstract

The invention discloses a method and special device for relieving the steel pipe heat treatment curvature. The method comprises the following steps that a steel pipe is conveyed to a lifting rotary carrier roller mechanism through conveying roll gangs after being discharged from a furnace, a rotary roll and an atomization spraying sprayer act at the same time, rotation and spraying of the steel pipe are stopped before a next steel pipe is discharged from the furnace, and the steel pipe is conveyed to a cold bed through the conveying roll gangs (1). The device comprises the conveying roll gangs(1); the lifting rotary carrier roller mechanism (2) is arranged between the conveying roll gangs (1); the atomization spraying sprayer (5) is arranged above the rotary roll of the lifting rotary carrier roller mechanism (2); and water baffles (7) are arranged on two sides of the lifting rotary carrier roller mechanism (2). The bending problem caused by conveying after heat treatment of the steelpipe is well solved, the quality of the steel pipe is improved, the equipment investment is reduced, and the good popularization value is achieved.

Description

Technical field: [0001] The invention relates to the technical field of heat treatment in the steel pipe manufacturing industry, in particular to a method and a special device for reducing the curvature of a steel pipe during heat treatment; it is mainly used for rapid cooling of steel pipes after heat treatment to prevent bending. Background technique: [0002] After heat treatment of the existing steel pipes, the steel pipes need to be cooled to room temperature. The route is to transport them to the cooling bed through the roller table after being released from the furnace. The bending problem of the steel pipes after being released from the furnace is common in heat treatment furnaces. Generally, re-straightening is used to solve the problem, and the production process is long. Equipment investment costs are too high; specific issues are as follows: [0003] 1. The steel pipe is bent in the heat treatment furnace; due to the influence of high temperature and internal str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/08
Inventor 于波梁建山祝昌涛
Owner 烟台鲁宝钢管有限责任公司
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