Laser welding method for thin stainless steel composite plate

A technology of laser welding and laser welding machine, applied in the direction of laser welding equipment, welding medium, welding equipment, etc., to achieve the effect of advanced technology, high welding quality and high weld strength

Active Publication Date: 2012-08-15
太原理工技术转移有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the thin-layer stainless steel composite plate is difficult to butt weld, adopt the laser welding method, use chromium-nickel alloy powder, weld on the laser welding machine, and after grinding and annealing, it will become a welded product, so that the thin-layer stainless steel It is possible to weld clad plates to greatly improve the corrosion resistance and welding quality of thin stainless steel clad plates

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  • Laser welding method for thin stainless steel composite plate
  • Laser welding method for thin stainless steel composite plate
  • Laser welding method for thin stainless steel composite plate

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Embodiment Construction

[0080] The present invention will be further described below in conjunction with accompanying drawing:

[0081] figure 1 As shown, it is the laser butt welding state diagram of thin stainless steel composite plate. The position and connection relationship of each part must be correct, and the welding powder should be transported according to the amount, and the argon gas should be supplied in sequence.

[0082] The amount of chemical substances used in welding is determined according to the preset range, in mm, g, ml, cm 3 is the unit of measurement.

[0083] The butt welding of thin stainless steel composite plates is carried out on a laser welding machine, which is completed under laser beam irradiation, powder feeding by a powder feeder, and argon protection. The laser beam irradiation power, powder feeding rate, and welding speed are all controlled by a computer program. The control is completed; the laser welding machine 1 is horizontal, the upper part of the laser weld...

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Abstract

The invention relates to a laser welding method for a thin stainless steel composite plate. According to the structural characteristics of the thin stainless steel composite plate, the outside of carbon steel is wrapped with a stainless steel plate, the stainless steel plate is thin, large-area and elastic, and great difficulty in double-sided welding is caused. By the aid of the laser welding method, the thin stainless steel plate is firstly pretreated and smoothly mounted, welding powder is prepared, argon shield is realized, the feeding quantity of the welding powder and the strength of a laser beam are controlled by means of computer program, and welding of the thin stainless steel composite plate is made possible. The welding method is advanced in process, high in welding quality, fine in corrosion resistance and high in welding strength, provides full and accurate data, and is safe, stable and reliable. The average tensile strength of a welding joint reaches 450.9MPa and accounts for 98.2% of that of base metal, the welding blank of the thin stainless steel composite plate is filled, and the laser welding method for the thin stainless steel composite plate is quite ideal.

Description

technical field [0001] The invention relates to a laser welding method for a thin stainless steel composite plate, which belongs to the technical field of metal material plate welding and application. Background technique [0002] Due to its good strength, high hardness, corrosion resistance, and smooth surface, stainless steel plates have a wide range of uses, and are often used in petroleum, chemical, light industry, electric power, and boiler pressure vessels; but because stainless steel is expensive, it is often used in Ordinary carbon steel plate is covered with a thin stainless steel plate, the cladding stainless steel material is used to prevent the corrosion of the medium, the base carbon steel material bears the load, and its price is about 1 / 2 of ordinary stainless steel; these stainless steel composite plates are made into Products such as containers and pipes must use welding technology. [0003] The welding process for stainless steel clad plates with a claddin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/32B23K26/14B23K26/42B23K35/30B23K35/40C21D9/50B23K26/60
Inventor 崔泽琴王玢马丽莉张红霞张亚楠卫朝阳刘冬荣小明
Owner 太原理工技术转移有限公司
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