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FGB-process single-sided submerged arc welding pad bonding method

A technology of submerged arc welding and backing, which is applied in the direction of arc welding equipment, welding equipment, welding accessories, etc., and can solve problems such as low efficiency

Inactive Publication Date: 2018-11-23
GUANGZHOU WENCHONG SHIPYARD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can greatly reduce the phenomenon of weld penetration caused by the looseness of the liner, but due to the influence of the number of welding cards and the straightness of the flat iron on the support of the liner, the phenomenon of weld penetration also occurs from time to time, and additional Installation of card codes, flat iron bars, wooden tips and other processes and materials, resulting in low overall construction efficiency of the FGB method

Method used

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  • FGB-process single-sided submerged arc welding pad bonding method
  • FGB-process single-sided submerged arc welding pad bonding method
  • FGB-process single-sided submerged arc welding pad bonding method

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Embodiment Construction

[0022] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the drawings shown The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0024] Combine Figure 1~4 As shown, an FGB method single-sided submerged arc welding pad pasting method acc...

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Abstract

The invention relates to the technical field of welding, and discloses an FGB-process single-sided submerged arc welding pad bonding method. A bonding layer of a flexible pad can be attached to the surface of a steel plate flatly and tightly, the bonding force between the flexible pad and the surface of the steel plate, and poor attachment such as wrinkles or air bubbles is avoided, thereby avoiding weld penetration due to loosening of the flexible pad, and reducing post-weld repair or repair work; meanwhile, since the flexible pad is fastened and bonded to the steel plate, there is no need toposition a card code, and there is also no need to use a thin flat iron bar or a wooden tip to perform the mounting and fastening process. The correct positioning welding can be directly performed ina butt seam groove, and a subsequent FGB arc is used to melt a positioning weld seam into the weld, thereby simplifying the processes of pad bonding and seam assembly, and improving the overall efficiency of an FGB welding process.

Description

Technical field [0001] The present invention relates to the technical field of welding, in particular to a method for attaching a backing of FGB single-sided submerged arc welding. Background technique [0002] The FGB welding method is an efficient welding method in which a Flexible Glassfiber Backing is pasted on the back and the iron powder is filled on the front by submerged arc automatic welding for single-sided welding and double-sided forming. [0003] The FGB welding method is a large heat input welding method. During the welding process, the backing is easy to loosen after being heated. During welding, molten steel flows out of the backing loosening, causing weld penetration defects, interrupting the welding, and causing a lot of weld repair work after welding. . In the prior art, in order to prevent the gasket from loosening during welding and causing the phenomenon of weld penetration, the existing gasket pasting method is to add a welding code on the back of the board ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/235B23K9/32
CPCB23K9/18B23K9/235B23K9/32
Inventor 杨伟锋许斌刘桑罗进友
Owner GUANGZHOU WENCHONG SHIPYARD CO LTD
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