Welding method of three-layer dual-face stainless steel composite board

A welding method and stainless steel technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of reducing welding efficiency, high welding cost, low heat input, etc. performance effect

Inactive Publication Date: 2018-02-23
SHOUGANG CORPORATION
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a welding method for a three-layer double-sided stainless steel composite plate, which solves the need to open a gap before welding in the welding process of stainless steel + carbon steel + stainless steel three-layer double-sided stainless steel composite plate, and needs to replace welding materials during the welding process , the welding cost is high, and multi-layer welding adopts small current and low heat input, which reduces the welding efficiency and other issues

Method used

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  • Welding method of three-layer dual-face stainless steel composite board
  • Welding method of three-layer dual-face stainless steel composite board

Examples

Experimental program
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Effect test

Embodiment

[0015] Example: 304+Q235B+304 three-layer double-sided stainless steel composite plate butt welding

[0016] Q235B is the base layer with a thickness of 8mm, and 304 is a double-sided stainless steel clad layer with a thickness of 2mm. The following welding scheme is adopted for the three-layer double-sided stainless steel clad plate:

[0017] Before welding, the bimetal composite board is machined into a flush end face, and the oxides on the base layer and the clad layer surface of the three-layer double-sided stainless steel composite board to be welded are removed by grinding. Assemble the two butt welding test plates according to type I, the assembly gap is less than 1mm, use stainless steel welding consumables to weld the two ends of the double-sided stainless steel composite plate, keep the welding test plates in the same horizontal plane, and weld the same welding at both ends of the weld bead. The material is the same thickness as the arc strike plate. The keyhole TI...

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Abstract

The invention discloses a welding method of a three-layer dual-face stainless steel composite board and belongs to the technical field of welding. The welding method is used for welding the stainlesssteel+ carbon steel+ stainless steel three-layer dual-face stainless steel composite board, the thickness of the stainless steel is not smaller than 2 mm, and the overall thickness is smaller than 15mm. The welding method comprises the following steps that oxide on the surface of the composite board is removed; a groove is not formed before welding, and two welding boards are connected in the same horizontal face; stainless steel welding materials are adopted for spot welding; and a keyhole TIG welding method is adopted for one-time welding forming, no filler wire is filled in the welding process, and protective gas is high-purity argon gas. The welding method of the three-layer dual-face stainless steel composite board has the advantages of being high in welding efficiency, good in welding quality and simple in process.

Description

technical field [0001] The invention belongs to the field of welding technology, in particular to a welding method for a three-layer double-sided stainless steel composite plate. Background technique [0002] The three-layer double-sided stainless steel composite plate is stainless steel + carbon steel + stainless steel combined by metallurgy or mechanical means, which not only has the mechanical properties of carbon steel, but also ensures the corrosion resistance of both sides of the composite plate, while saving costs. It has broad application prospects in chemical industry, seawater desalination and environmental governance. [0003] The current welding method of stainless steel clad plate is mainly for double-layer stainless steel clad plate, that is, stainless steel + carbon steel clad plate. The specific welding process is to separate the clad layer and the base layer with different welding materials. , The welding material needs to be replaced during the welding pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/235B23K9/00
CPCB23K9/167B23K9/0026B23K9/235B23K2101/18B23K2103/05
Inventor 张侠洲王凤会陈延清杨建炜牟淑坤张熹赵英建郭占山
Owner SHOUGANG CORPORATION
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