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A kind of welding method for automobile fuel tank partition

A fuel tank and baffle technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of falling off of welding points, leakage of fuel tank, cracked shell, etc., to achieve firm welding, not easy to tear, improve The effect of seam forming

Active Publication Date: 2016-08-10
西安德仕汽车零部件有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the vehicle state, the violent vibration of the fuel impacts the fuel tank partition, causing the solder joints at the spot welding to be stressed, causing the solder joints to fall off, tearing the shell, and causing the fuel tank to leak

Method used

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  • A kind of welding method for automobile fuel tank partition

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Embodiment Construction

[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0013] The method for installing and welding an automobile fuel tank partition is characterized in that it comprises the following steps:

[0014] A. After assembling the fuel tank partition to the corresponding position inside the fuel tank forming shell according to the requirements of the drawings, only weld the four corner arcs between the fuel tank forming shell and the fuel tank partition so that the fuel tank partition is firmly fixed on the fuel tank forming Inside the casing, the rest of the fuel tank partition is not welded, such as figure 1 shown;

[0015] B. Carbon dioxide gas shielded welding is used in the four-corner arc welding part, and the mixed gas of carbon dioxide and argon is used as the welding shielding gas.

[0016] Fu...

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Abstract

The invention discloses an automobile fuel tank partition assembly and welding technology. The automobile fuel tank partition assembly and welding technology includes the following steps that A, a fuel tank partition is assembled to the corresponding position in a fuel tank forming shell according to drawing requirements, welding is conducted only on the fuel tank forming shell and the arc positions of the four corners of the fuel tank partition, the fuel tank partition is firmly fixed in the fuel tank forming shell, and other portions of the fuel tank partition are not welded; B, carbon dioxide arc shielded welding is carried out on the arc welding portions of the four corners, and the mixed gas of carbon dioxide and argon is selected as welding shielding gas. The automobile fuel tank partition assembly and welding technology has the advantages that the welding quality of carbon dioxide arc shielded welding is easily detected, control is easy in the welding process, the toughness of weld joints is higher than that of spot welding, welding is firmer, and tearing is not prone to occurrence; the problems that welding spot pits are generated in the plane of the fuel tank forming shell after spot welding is conducted, and the plane of the fuel tank forming shell is not even are solved, and by adoption of carbon dioxide arc shielded welding, the reliability of the fuel tank forming shell is improved.

Description

technical field [0001] The invention relates to a production method of an automobile fuel tank, in particular to a method for assembling and welding an automobile fuel tank partition. Background technique [0002] The function of a car fuel tank is to store fuel. The fuel tank partition is assembled inside the fuel tank, which can buffer the fuel vibration and support the frame of the fuel tank. The (iron) fuel tank partition is generally assembled by spot welding at the straight edge of the partition. In the vehicle state, the fuel vibrates violently and impacts the fuel tank partition, causing concentrated force on the solder joints at the spot welds, causing the solder joints to fall off, tearing the shell, and causing fuel tank leakage. Contents of the invention [0003] In order to solve the above problems, ensure that the fuel tank partition is firmly assembled, and improve the service life of the fuel tank assembly, the invention provides a method for assembling a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16
CPCB23K9/16
Inventor 徐强刘雯付琛
Owner 西安德仕汽车零部件有限责任公司
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