Machining technology for submerged-arc welding straight seam steel pipe of shock absorption structure

A shock absorption and processing technology, applied in the field of straight seam submerged arc welded steel pipes, can solve the problems of comparable shock resistance of the weld, and achieve the effects of avoiding pollution, uniform size distribution, and reducing aperture
CN107876576AActive Publication Date: 2018-04-06HEFEI ZIKING PIPE INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI ZIKING PIPE INC
Publication Date
2018-04-06

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Abstract

The invention discloses a machining technology for a submerged-arc welding straight seam steel pipe of a shock absorption structure, and relates to the technical field of straight seam submerged-arc welding steel pipes. The machining technology includes the following steps that (1) the submerged-arc welding straight seam steel pipe is machined; (2) shock absorption materials are machined; and (3)the shock absorption structure is formed. By adoption of the machining technology, the produced shock absorption materials are coated on the submerged-arc welding straight seam steel pipe to form theshock absorption structure, and therefore the shock absorption performance of the submerged-arc welding straight seam steel pipe is excellent; and meanwhile, the using amount of metal magnesium and aluminum is reduced, and the shock absorption performance of the shock absorption materials is enhanced while cost is reduced.
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Description

Technical field:

[0001] The invention relates to the technical field of straight seam submerged arc welded steel pipes, in particular to a processing technology for submerged arc welded straight seam steel pipes with an impact absorption structure. Background technique:

[0002] The submerged arc welding straight seam steel pipe adopts the submerged arc welding technology, uses filler welding, particle protection flux submerged arc, and the production diameter can reach 1500mm. LSAW is the English abbreviation of submerged arc welded straight seam steel pipe. The production process of submerged arc welded straight seam steel pipe includes JCOE forming technology and coil forming submerged arc welding technology. When the diameter is large, two steel plates can be used for rolling, which will form a phenomenon of double welds.

[0003] Although submerged arc welded straight seam steel pipes are welded with fillers and submerged arc particles protect the flux, the impact resi...

Claims

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