Welding process for overhead welding of plate

A welding process and plate technology, which is applied in the field of plate overhead welding, can solve the problems of low welding efficiency and difficulty in guaranteeing welding quality, etc.

Inactive Publication Date: 2020-10-27
BEIJING BO TSING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the welding method of electrode arc welding has the problems of low welding efficiency and difficulty in guaranteeing welding quality

Method used

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  • Welding process for overhead welding of plate
  • Welding process for overhead welding of plate

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Embodiment Construction

[0027] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific si...

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Abstract

The invention relates to the field of welding, and discloses a welding process for overhead welding of a plate. The welding process includes the steps of machining a groove, wherein the U-shaped groove is formed in a welding butt-joint end of the plate; performing backing welding, wherein a backing welding bead is welded to the root part of the U-shaped groove by gas metal arc welding; and performing filling welding, wherein starting from the root part of the U-shaped groove, straight bead welding is performed on the two side walls of the U-shaped groove by bipulse gas shielded arc welding first to form at least one side wall filling welding bead on each side wall, then weaving welding is performed between the welded side wall filling welding beads by monopulse gas shielded arc welding toform a middle filing welding bead, and finally side wall filling welding beads and middle filling welding beads are welded repeatedly in sequence. By perform straight bead welding on the two side walls of the U-shaped groove by bipulse gas shielded arc welding and performing weaving welding between the side wall filling welding beads by monopulse gas shielded arc welding, the welding beads can beeasily formed, and welding efficiency and quality are improved.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a plate overhead welding welding process. Background technique [0002] Welding can be divided into flat welding, horizontal welding, vertical welding and overhead welding according to different welding positions. Among them, overhead welding is welding in which the welding position is below the level in welding. [0003] Overhead welding is the most difficult of the four basic welding positions. In some cases, due to the narrow space on the construction site or the work form, usually only the overhead welding method can be used to realize the welding connection of the base metal with single groove. Among them, the existing welding operation mode for the base metal under this kind of working condition is mostly manual electrode arc welding operation. However, the welding method of electrode arc welding has the problems of low welding efficiency and difficulty in guaranteeing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/235B23K9/32
CPCB23K9/16B23K9/235B23K9/32
Inventor 冯消冰陈永汪正伟李海龙
Owner BEIJING BO TSING TECH CO LTD
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