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Welding method of composite steel plate

A welding method and composite steel plate technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of scrapping, rework, and partial bulging or warping of combined embryonic plates, so as to achieve the effect of eliminating waste products

Pending Publication Date: 2022-07-29
ANHUI BAOHENG ADVANCED MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the blank assembly welding, that is, when the base plate and the cladding plate are assembled and welded, it is generally used to apply pressure to the entire combined embryonic sheet and then perform sealing welding. After welding, the combined embryonic sheet is prone to local swelling or warping, which requires rework. Otherwise, it will be scrapped directly

Method used

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  • Welding method of composite steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] see figure 1 , one base plate is made of 201 stainless steel plate, and two cladding plates are made of 304 stainless steel plate. The specific processing steps are as follows:

[0022] S1. Surface treatment: respectively perform surface treatment on the to-be-bonded surface of the substrate and the to-be-bonded surface of the cladding, that is, respectively, perform surface treatment on both sides of the substrate and one side of the cladding, and remove the unbonded surface of the substrate and the to-be-bonded surface of the cladding. Sticky sand and scale.

[0023] Specifically, the substrate is sent into the shot blasting machine, and the shot blasting machine of the shot blasting machine throws projectiles (steel balls) at high speed, impacting both sides of the substrate, respectively, to remove the sticky sand and oxide skin on both sides until the surface is clean and free of rust spots ; Send the cladding plate into the shot blasting machine, the shot blastin...

Embodiment 2

[0032] see figure 1 , one base plate is made of 201 stainless steel plate, and two cladding plates are made of 304 stainless steel plate. The specific processing steps are as follows:

[0033] S1. Surface treatment: respectively perform surface treatment on the to-be-bonded surface of the substrate and the to-be-bonded surface of the cladding, that is, perform surface treatment on both sides of the substrate and one of the cladding surfaces, and remove the unbonded surface of the substrate and the to-be-bonded surface of the cladding. Sticky sand and scale.

[0034] Specifically, the substrate is sent into the shot blasting machine, and the shot blasting machine of the shot blasting machine throws projectiles (steel balls) at high speed, impacting both sides of the substrate, respectively, to remove the sticky sand and oxide skin on both sides until the surface is clean and free of rust spots ; Send the cladding plate into the shot blasting machine, the shot blasting machine ...

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Abstract

The invention discloses a welding method of a composite steel plate. The welding method comprises the following steps: (1) carrying out surface treatment on a plate; (2) assembling is conducted; (3) dividing the combined blank plate into a plurality of sections along the length direction of the combined blank plate, applying pressure to each section in sequence, and primarily welding the periphery of the joint of the base plate and the cover plate in each section in sequence by adopting a spot welding mode, so that the combined blank plate is not locally raised or tilted; and (4) the periphery of the joint of the base plate and the covering plate is completely welded and sealed together, and the blank plate to be rolled is obtained. The combined blank plate is divided into a plurality of sections, pressure is applied to the sections in sequence, and the peripheries of the joints of the base plate and the cover plate in the sections are preliminarily welded in sequence in a spot welding mode, so that the combined blank plate does not locally bulge or tilt, the base plate and the cover plate can be assembled and welded together at a time, reworking is not needed, waste products are avoided, and the production efficiency is improved. And an excellent blank plate is provided for subsequent rolling.

Description

technical field [0001] The invention relates to the technical field of production of stainless steel composite plates, in particular to a welding method of composite steel plates. Background technique [0002] The stainless steel clad plate is a composite plate steel plate composed of carbon steel substrate and stainless steel cladding plate or different series of stainless steel substrate and cladding plate. Its main feature is that carbon steel and stainless steel form a solid metallurgical bond, which can be processed by hot pressing, cold bending, cutting, welding, etc., and has good process performance. [0003] At present, in the welding of blanks, that is, when the base plate and the cladding plate are assembled and then welded, it is generally used to apply pressure to the entire combined blank before sealing and welding. Otherwise, it will be directly scrapped. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to overcome the defects and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/007B23K9/18B23K9/235B23K31/02
CPCB23K9/235B23K9/18B23K9/007B23K31/02
Inventor 洪功正
Owner ANHUI BAOHENG ADVANCED MATERIAL TECH CO LTD
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