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A Welding Method for Concealed Penetration Welds of Tree Branch Nodes

A welding method and penetration technology, which is applied in the field of steel structure welding, can solve the problems of difficult welding and difficult spatial positioning of the four tubes on the top of the column, and achieve the effect of improving welding quality

Active Publication Date: 2020-05-01
CHINA FIRST METALLURGICAL GROUP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, some engineering lattice columns are composed of four-legged steel pipes, and the four-legged pipes on the top of the column are in the form of tree branches. The hidden penetration welds on the top of the column are dense, and there are multiple assemblies and multiple weldings. The welding is difficult, and the spatial positioning of the four tubes on the top of the column is more difficult. Big

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  • A Welding Method for Concealed Penetration Welds of Tree Branch Nodes
  • A Welding Method for Concealed Penetration Welds of Tree Branch Nodes
  • A Welding Method for Concealed Penetration Welds of Tree Branch Nodes

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Embodiment Construction

[0031] Below by embodiment, in conjunction with accompanying drawing, the technical scheme of the present invention is described further specifically, as Figure 1-4 As shown, a welding method for concealed penetration welds of tree branch nodes includes the following steps:

[0032] Step 1. Determine the number of division layers of the straight pipe section at the top of the four-pipe lattice column of the steel structure according to the design requirements, determine the number of partition plates, determine the relative positions of the adjacent partitions and cross ribs 3 according to the size requirements of the design lofting drawing, and adjust the accuracy After assembly and welding, each layer of partitions and cross ribs 3 are welded in sequence from top to bottom. The welding between the partitions and cross ribs adopts the welding process of single-sided welding and back cleaning, and UT inspection is used after welding , and enter the next process after passing ...

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Abstract

The invention provides a method for welding branch node hidden melting-through welds. A straight pipe section at the top of an existing four-pipe latticed column is divided into a plurality of layers,a plurality of sections of round pipes are partitioned through partition plates and cross-shaped reinforcing ribs, all the sections of the round pipes are half-divided and then are welded, and the reasonable assembling sequence, groove forming mode and welding sequence are further formulated; and welding quality of the straight pipe section at the top of the fork-shaped four-pipe latticed columnis improved, the number of the hidden welds is decreased, and complete welding is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of steel structure welding, and in particular relates to a groove setting method and a welding method for a manufacturing factory to solve the hidden penetration welding seam of tree branch nodes. Background technique [0002] During the rapid development of the steel structure industry, more and more steel structure four-tube lattice columns are used in construction. The steel structure four-tube lattice column has the advantages of beautiful appearance, good adaptability, reasonable structural force, and saving steel. In the past, most of the four-pipe lattice columns in this type of project were divided into upper and lower columns, and the lower column was composed of four steel pipes. The connection form between the steel column and the roof truss was changed through the corbel, and most of them were two-dimensional positioning. However, some engineering lattice columns are composed of four-legged stee...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02B23K37/04B23K37/00
CPCB23K31/02B23K37/00B23K37/04
Inventor 郭宾华陈志新李景科许毅
Owner CHINA FIRST METALLURGICAL GROUP