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A welding method of polygonal structural parts

A polygonal structure, polygonal tube technology, applied in welding equipment, arc welding equipment, resistance welding equipment, etc., can solve the problems of different thicknesses, welding quality defects at the ridges, etc.

Active Publication Date: 2022-07-29
ANSTEEL BEIJING RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] When welding polygonal components, due to the different thicknesses of polygonal components at the sidelines and ridgelines, according to the existing welding methods, various welding quality defects will exist at the sidelines and / or ridgelines after welding

Method used

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  • A welding method of polygonal structural parts
  • A welding method of polygonal structural parts
  • A welding method of polygonal structural parts

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Embodiment Construction

[0029] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] like Figure 1 to Figure 3 As shown, the tungsten pulse welding method for a polygonal structural member according to an embodiment of the present invention includes the following steps:

[0031] S10, inserting at least a part of the second component into the first component to form a joint portion;

[0032] S20, fixing the first structural member and the second structural member;

[0033] S30: Rotate the welding torch around the first part and the second part to weld a plurality of welding areas of the joint part, where the plurality of welding areas include an edge area and an edge area, wherein the welding area of ​​th...

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Abstract

The present invention provides a method for pulse tungsten welding of a polygonal structure. The polygonal structure includes a first part and a second part, and further includes the following steps: S10, inserting at least a part of the second part into the first part to form Joint part; S20, fix the first structural part and the second structural part; S30, rotate the welding torch around the first part and the second part to weld a plurality of welding areas of the butt joint, the plurality of welding areas including an edge area and an edge area , wherein the edge region of the butt portion is welded with a first current, and the edge region of the butt portion is welded with a second current, and the second current is greater than the first current. According to the welding method provided by the present invention, the welding process is fully automatic, the groove is not opened and the welding wire is not filled, and the operation is simple. It can not only solve the problem of welding defects at the corners of polygonal structural parts, but also accurately control the welding parameters, thereby reducing the problems of welding heat in and out and welding deformation.

Description

technical field [0001] The invention relates to the technical field of welding, in particular to a welding method for polygonal structural parts. Background technique [0002] Welding, also known as welding, is a manufacturing process and technique for joining metals or other thermoplastic materials such as plastics by heat, high temperature, or high pressure. For some structural parts with special shapes, such as polygonal structural parts such as engineering hexagonal pipes mentioned in Chinese patent CN109543333A, the transition section bosses cannot be completely penetrated by general welding methods and process parameters, and the heat input must be increased. . This leads to defects such as undercut, weld penetration, and over-height of the weld after welding, especially at the edges and corners of structural parts, which are prone to welding quality problems, which seriously affects the quality of welded joints. SUMMARY OF THE INVENTION [0003] The present invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/167B23K9/007B23K9/235B23K11/11B23K11/34
CPCB23K9/167B23K9/007B23K9/235B23K11/11B23K11/34
Inventor 厉文墨蒋健博刘芳芳江坤王艺橦张弛潘栋
Owner ANSTEEL BEIJING RES INST
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