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Method and device for removing welding slag generated after grinding of inner welding joint of spiral welding pipe

The technology of spiral welded pipe and welding slag is applied in the field of welding slag removal method and slag removal device after the welding seam of spiral welded pipe is repaired, which can solve the problems of damaged cutter head, inability to completely remove metal slag, and increased labor intensity of operators, etc. Achieve the effect of improving utilization rate, eliminating health hazards, and convenient and quick disassembly and assembly.

Active Publication Date: 2016-02-03
中冶辽宁德龙钢管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the inner weld of the spiral submerged arc welded pipe is generally used for weld grinding by the inner weld grinding machine. Its working principle is to use the abrasive belt to grind the weld at the end of the pipe. Magnetization is generated and adsorbed on the inner wall of the spiral welded pipe end; the operator usually uses manual cleaning equipment for processing, which cannot completely remove the magnetic metal waste, resulting in the next process, the flat end chamfering process, the metal fine waste enters the flat end machine cutter head In the middle, the cutter head is often damaged
In addition, manual slag removal will increase the labor intensity of operators, and flying metal dust will also become a health hazard for operators

Method used

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  • Method and device for removing welding slag generated after grinding of inner welding joint of spiral welding pipe
  • Method and device for removing welding slag generated after grinding of inner welding joint of spiral welding pipe

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Embodiment Construction

[0021] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0022] See figure 1 , is a schematic structural view of the slag removal device of the present invention. The method for removing welding slag after grinding the inner weld seam of the spiral welded pipe according to the present invention comprises the following steps:

[0023] 1) After the weld seam of the spiral welded pipe is formed, the inner weld seam shall be ground to pass by the inner weld seam grinding machine;

[0024] 2) Remove the grinding wheel installed on the shaft end of the shaft 2 of the outer weld grinder, and install the wire brush 4; the wire brush 4 is fixedly connected to the shaft 2 of the outer weld grinder through the wire brush shaft 3, and can be attached The shaft 2 of the welding seam grinder rotates;

[0025] 3) Start the outer weld grinding machine 1, the wire brush 4 rotates under the drive of the rotating shaft...

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Abstract

The invention relates to a method and device for removing welding slag generated after grinding of an inner welding joint of a spiral welding pipe. The device for removing the welding slag comprises a steel wire brush and a steel wire brush through shaft. One end of the steel wire brush through shaft is fixedly connected with the shaft end of a rotary shaft of an outer welding joint grinder through threads, the inner ring of the steel wire brush is fixedly connected with the steel wire brush through shaft through a long key, and the rotary shaft of the outer welding joint grinder can drive the steel wire brush to rotate through the steel wire brush through shaft. The shaft end of the steel wire brush is fixed through a locknut. As the steel wire brush is detachably installed on the outer welding joint grinder, the residual welding slag generated after the inner welding joint is ground can be electrically removed, installation and use are convenient, one device has dual purposes, the utilization rate of existing equipment is increased, and the labor intensity of field staff is reduced.

Description

technical field [0001] The invention relates to the technical field of slag removal after welding of spiral submerged arc welded pipes, in particular to a method and a slag removal device for removing welding slag after grinding of internal weld seams of spiral welded pipes. Background technique [0002] At present, the inner weld of the spiral submerged arc welded pipe is generally used for weld grinding by the inner weld grinding machine. Its working principle is to use the abrasive belt to grind the weld at the end of the pipe. Magnetization is generated and adsorbed on the inner wall of the spiral welded pipe end; the operator usually uses manual cleaning equipment for processing, which cannot completely remove the magnetic metal waste, resulting in the next process, the flat end chamfering process, the metal fine waste enters the flat end machine cutter head , resulting in frequent damage to the cutter head. In addition, manual slag removal will increase the labor inte...

Claims

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Application Information

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IPC IPC(8): B08B9/027B08B13/00B24B9/02
CPCB08B9/027B08B13/00B24B9/02
Inventor 薛俊王开寻马露涛孙波
Owner 中冶辽宁德龙钢管有限公司