Welding method of precise stainless steel strips
A stainless steel strip and welding method technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of low production efficiency and weak welding, and achieve the advantages of improving welding quality, avoiding weak welding and shortening failure time. Effect
Inactive Publication Date: 2018-11-02
SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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Problems solved by technology
[0003] In order to overcome the deficiencies in the existing technology and solve the technical problems of low production efficiency and weak welding at the overlapping position of the front and rear steel plates in the cold rolling process of stainless steel strips, a welding method for precision stainless steel strips is provided
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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0023] In this embodiment, the stainless steel type number is selected to be two volumes of stainless steel strips of 301, the thickness of the steel strip is 0.15mm, the hardness of the steel strip is 1 / 2H, the tensile strength of the steel strip is 813MPa, and there is no surface oxidation at the head and tail of the steel strip. No oil stains.
[0024] The welding method at the overlapping position of the front and rear two coils of steel plates is as follows:
[0025] a. Crimp the end part of the previous roll of stainless steel strip 1 and the leading part of the next roll of stainless steel strip 4 on the welding workbench, wherein the length of the overlapping part of the two rolls of stainless steel strip before and after is 60 mm;
[0026] b. The overlapping parts of the stainless steel strip are compressed:
[0027] In the width di...
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Abstract
The invention relates to a welding method of precise stainless steel strips and belongs to the technical field of welding. The technical problems that according to a welding technology of overlappingpositions of a front roll of steel plate and a rear roll of steel plate in the stainless steel strip cold rolling process, production efficiency is low and welding is infirm are solved. The welding method of the precise stainless steel strips includes the following steps that a, the tail part of the front roll of stainless steel strip and the head part of the rear roll of stainless steel strip areconnected in a compression mode on a welding worktable; b, the overlapping parts of the stainless steel strips are compressed; c, the overlapping parts of the stainless steel strips are welded; d, the positions of the stainless steel strips are adjusted; and e, the steps a to c are repeated, and a second welded joint parallel to a first welded joint is welded on the overlapping parts of the stainless steel strips. Various factors affecting welding quality in the welding process are analyzed, a welding technology experiment is carried out repeatedly, and thus after welding is carried out through the welding method, the welding quality of the stainless steel strips is improved, the phenomenon that strip breakage is caused by infirm welding is avoided, repetitive work is reduced, the fault time of a welding machine is shortened, and production efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of welding at overlapping positions of two coils of steel plates in the cold rolling process of stainless steel strips, and in particular relates to a welding method for precision stainless steel strips. Background technique [0002] In order to ensure the continuity of production in the cold rolling production line, the end of the previous coil of steel and the head of the subsequent coil of steel need to be welded butt jointed during the recoiling, bright annealing, and strip cleaning processes. However, due to improper welding process, the welding time is too long, which reduces the production efficiency. During the welding process, the nugget shifts and splashes damage the equipment, and what's more, the welding is not strong and the belt is broken and other production accidents. This not only caused high equipment maintenance costs, but also affected the quality of welding and reduced the normal product...
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IPC IPC(8): B23K31/00B23K37/00B23K101/16
CPCB23K31/00B23K37/00
Inventor 胡尚举张艳霞王天翔武显斌邓小年赵永顺
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD