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Production equipment and technique for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes

A technology of straight seam submerged arc welding and production equipment, which is applied in the direction of arc welding equipment, welding equipment, and other manufacturing equipment/tools. The effect of small amount and low residual stress

Inactive Publication Date: 2016-03-09
HEBEI CANGHAI PIPE FITTINGS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process can only use veneer as raw material and cannot be used for continuous production. Compared with large equipment investment, its production efficiency is far lower than that of roll forming
In addition, product length is often limited by equipment or mold size

Method used

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  • Production equipment and technique for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes
  • Production equipment and technique for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes
  • Production equipment and technique for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes

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Experimental program
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Embodiment 1

[0037] Such as Figure 1-6As shown, the production equipment for continuous production of longitudinal submerged arc welded pipes for dual-purpose plates and strips includes material preparation table 1, decoiler 2, leveling machine 3, plate shearing machine 4, plate automatic feeding machine 5, and plate edge derusting machine 6. Edge milling machine 7, C-type machine 8, O-type machine 9, sizing machine 10, joint pre-welding equipment 11, cutting device 12, post-processing device 13.

[0038] A production process for continuous production of straight seam submerged arc welded pipes for dual-purpose plates and strips, such as figure 1 As shown, in the specific operation, the material is first loaded through the material preparation table. When loading:

[0039] When feeding with steel coils: first conduct the steel coil size and appearance inspection, then use the multi-station coil preparation table to provide steel coils through the coiling trolley, uncoil the uncoiler 2, ...

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Abstract

The invention discloses production equipment for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes and belongs to the technical field of straight-slit submerged-arc welded pipes. The production equipment comprises a material preparing table, an unwinder, a leveller, a plate shearing machine, a plate edge derusting machine, an edge milling machine, a pre-bending device, a forming device, joint slit prewelding equipment, a cutoff device, an inside welding device and an outside welding device which are connected sequentially. The input end of the plate shearing machine is connected with the input end of the plate edge derusting machine. The input end of the plate edge derusting machine is further provided with a plate automatic feeding machine connected through a transmission mechanism. The forming device is an optical distribution frame (ODF) forming machine. The invention further discloses a production technique for the plate-strip dual-use continuous production straight-slit submerged-arc welded pipes. A continuable operation ODF forming technique is adopted, and the ODF forming machine is amount to a moving punching machine, so that the forming process of the welded pipes is changed into a process that two-dimensional transformation during movement gradually changes to be a three-dimensional forming effect; the circular formed section is achieved; the production equipment and technique have the advantages of being high in efficiency, good in forming quality and the like.

Description

technical field [0001] The invention belongs to the technical field of straight seam submerged arc welded pipes, and relates to the processing of straight seam submerged arc welded pipes. Specifically, it is a production process and production equipment for continuous production of straight seam submerged arc welded pipes for dual-purpose plates and strips. The invention is applied to continuous production of large , Medium-diameter straight seam submerged arc welded pipe, the ODF production technology adopted can realize the common use of flat plate and coiled plate. It can be formed by using hot-rolled or cold-rolled steel coils, or welded pipes using hot-rolled medium-thick plates as raw materials. Background technique [0002] There are two processes for producing straight seam submerged arc welded pipes: [0003] 1. UOE production process: UOE production process is the first letter of the three important processes in the welded pipe forming process (U-ingpress, O-ingpre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04B23P15/00
CPCB23P23/04B23K9/18B23P15/00
Inventor 赵德清程绍忠王秀清孟庆云卢兰芳王鹏飞弋强
Owner HEBEI CANGHAI PIPE FITTINGS GROUP
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