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A Welding Process of Quenching Partition Steel QP980 for Automobile

A quenching distribution and welding process technology, applied in the welding of straight seam, welding equipment, roller electrode welding, etc., can solve the problems of high strength steel welding difficulty, welding difficulty, low processing efficiency, etc. No scab, no scab on the welding seam, high welding efficiency

Active Publication Date: 2022-03-29
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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  • Description
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Problems solved by technology

[0004] However, due to the difficulty of welding high-strength steels, especially for quenched and partitioned steels, the welding is difficult, resulting in low processing efficiency

Method used

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  • A Welding Process of Quenching Partition Steel QP980 for Automobile

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Embodiment Construction

[0023] The core of the present invention is to provide a welding process for quenching and distributing steel QP980 for automobiles, which is used for welding the quenching and distributing steel QP980 to improve welding efficiency and connection strength.

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Please refer to figure 1 , figure 1 It is a flow chart of a specific embodiment of the welding process of the quenched and distributed steel QP980 for automobiles provided by the present invention.

[0026] In this embodiment, the welding process of quenched and distributed steel QP980 for automobiles includes the following steps:

[0027] Step S1: Obtain the strip steel coils of quenched and allocated steel QP980 and the strip steel coils of transitional carbon structu...

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Abstract

The invention discloses a welding process for quenching and distributing steel QP980 for automobiles, comprising the following steps: step S1: obtaining strip steel coils of quenching and distributing steel QP980 and transitional carbon structural steel; step S2: cleaning the previous coil The tail of the strip and the head of the next strip; step S3: adjust the welding parameters, and lap weld the tail of the previous strip and the head of the next strip; step S4: quenching and distributing steel QP980 The steel strip coils and transition carbon structural steel strip coils are arranged alternately and welded in sequence. In the welding process provided by the present invention, the narrow lap welding machine can be used between the quenched distribution steel QP980 and the transitional carbon structural steel, and the transitional carbon structural steel is increased through the interval, so that the narrow lap welding machine can be used in the continuous annealing production line The connection between each volume of quenched and distributed steel QP980 is realized, and the welding efficiency is high, the weld area is flat and smooth, the weld seam has no scars, and the welding wheel has no scars, which is convenient for use in the automobile manufacturing industry.

Description

technical field [0001] The invention relates to the field of welding technology of QP980 steel, in particular to a welding technology of QP980 quenched distribution steel for automobiles. Background technique [0002] Welding strip steel to realize continuous production of iron and steel enterprises is an important technological means to improve production efficiency, reduce production costs and expand benefits. [0003] In the prior art, in order to overlap the steel strip, a narrow lap welding machine is usually used for welding. The narrow lap welding is to overlap two pieces of material (strip steel), pressurize and pass current, and use the resistance of the material itself , The heat generated by the concentrated resistance between the materials and the contact parts between the materials and the electrodes raises the temperature of the materials and finally melts and welds them. [0004] However, due to the difficulty in welding high-strength steels, especially for q...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/06B23K11/34
CPCB23K11/06B23K11/34B23K11/061
Inventor 熊凌荣王德宇陈俊周三保
Owner PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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