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Assembly method of double-joint submerged arc welded pipe and double-joint pipe

A technology of submerged arc welded pipe and assembly method, which is applied in the direction of welding equipment, auxiliary devices, tubular objects, etc., can solve the problems of low efficiency and large assembly accuracy error, and achieve the effects of high efficiency, high assembly accuracy, and convenient positioning and alignment

Active Publication Date: 2019-04-05
ZHEJIANG SHENGDA STEEL TOWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above problems, the present invention proposes an assembly method for double submerged arc welded pipes, which solves the problems of large assembly accuracy error and low efficiency in the existing method

Method used

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  • Assembly method of double-joint submerged arc welded pipe and double-joint pipe
  • Assembly method of double-joint submerged arc welded pipe and double-joint pipe
  • Assembly method of double-joint submerged arc welded pipe and double-joint pipe

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Experimental program
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Effect test

Embodiment 1

[0032] A method for assembling double-piece submerged arc welded pipes, comprising the following steps:

[0033] 1) if figure 1 As shown, the two longitudinal surfaces 2 of the first semicircular tube 1 are respectively fixed with limiting splints, and the limiting splints include an inner plate 3 fixed inside the first semicircular tube 1 and an outer plate fixed outside the first semicircular tube 1 4. The space between the inner panel 3 and the outer panel 4 is the limiting space 5;

[0034] 2) if image 3 As shown, the second semicircular pipe 7 is docked with the first semicircular pipe 1, so that the longitudinal surface of the second semicircular pipe 7 is located in the corresponding space 5, and the longitudinal surface of the second semicircular pipe 7 corresponds to the first semicircular pipe 1. The vertical surface of the two semi-circular tubes are in a tubular structure;

[0035] 3) Welding along the butt joints of the first semicircular tube 1 and the second...

Embodiment 2

[0045] Such as Figure 5 As shown, a double-split pipe manufactured by the assembly method of Embodiment 1, the double-split pipe includes a first semicircular pipe 1 and a second semicircular pipe 7, each semicircular pipe includes two longitudinal surfaces 2 and two end faces, the first Both longitudinal surfaces 2 of the semicircular tube 1 are fixed with limiting splints, and the limiting splints include an inner plate 3 fixed inside the first semicircular tube 1 and an outer plate 4 fixed outside the first semicircular tube 1, the inner plate 3 and the outer plate The space between the plates 4 is the limiting space 5, the longitudinal surface of the second semicircular tube 7 is located in the corresponding limiting space 5, the longitudinal surface of the second semicircular tube 7 abuts against the corresponding longitudinal surface of the first semicircular tube 1, and fixed by welding.

[0046] The longitudinal surface of the first semi-circular pipe 1 of the double...

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Abstract

The invention discloses an assembly method of a dual joint submerged-arc welding pipe and a dual joint pipe. The assembly method comprises the following steps that (1) limiting clamp plates are fixed to two longitudinal faces of a first semicircular pipe correspondingly, each limiting clamp plate comprises an inner plate and an outer plate, and the space between each inner plate and the corresponding outer plate is limited space; (2) a second semicircular pipe and the first semicircular pipe are in butt joint, the longitudinal faces of the second semicircular pipe are located in the corresponding limiting space and abut against the corresponding longitudinal faces of the first semicircular pipe, and the two semicircular pipes are of a pipe-shaped structure; and (3) welding is carried out along the butt joint seams of the first semicircular pipe and the second semicircular pipe, and the first semicircular pipe and the second semicircular pipe are fixed. According to the assembly method, the limiting clamp plates are arranged on the longitudinal faces of the first semicircular pipe, and therefore the limiting space can be formed on the first semicircular pipe, and when the second semicircular pipe and the first semicircular pipe are in butt joint, locating and alignment of the second semicircular pipe are facilitated; and compared with existing methods, the assembly method is high in assembly precision and efficiency.

Description

technical field [0001] The invention relates to a submerged arc welded pipe, in particular to an assembly method of a double-piece submerged arc welded pipe and the double-piece pipe. Background technique [0002] The assembly method of the existing double-piece submerged arc welded pipe is as follows: 1. Place the lower half-round pipe on the roller frame, set the left and right end faces vertically, and the two longitudinal faces upward; 2. Lift the upper half-round pipe by crane Lifting, and manual adjustment to align and close the two semi-circular tubes to form a tubular structure, so that the longitudinal surface of the upper semi-circular tube and the longitudinal surface of the lower semi-circular tube are in contact one by one, and the two ends of the upper and lower semi-circular tubes are respectively aligned. ; 3. Carry out spot welding and fixation along the butt joint (the longitudinal surface of the upper semicircular pipe and the longitudinal butt joint of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/053B23K37/00B23K101/06F16S3/02
CPCB23K37/00B23K37/0535B23K2101/06F16S3/02
Inventor 戴刚平于振江葛晓峰王涛吕闪闪王娟娟宋静薛云霞李宗璇王琰刘明刘堃房巍陈兵兵
Owner ZHEJIANG SHENGDA STEEL TOWER