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Method for welding bearing band

A welding method and elastic belt technology are applied in welding equipment, high-frequency current welding equipment, ammunition, etc., which can solve the problems of low welding strength, short heating time, and high welding strength, and achieve short welding time, short heating time, The effect of improving productivity

Inactive Publication Date: 2003-10-29
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0008] In order to overcome the disadvantages of low welding strength and inconvenient operation caused by long heating time in the prior art, the present invention provides a welding method for elastic belts—magnetic pulse welding welding elastic belts. During the welding process, Short heating time, high welding strength, suitable for mass production

Method used

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  • Method for welding bearing band
  • Method for welding bearing band
  • Method for welding bearing band

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Embodiment Construction

[0019] refer to figure 1 Put the elastic belt 2 on the elastic body 1, place the magnetic coil 3 outside the elastic belt 2, place the elastic body 1 in the welding fixture 4 and press it tightly, and fix it with the clamping screw 9. Close the mechanical discharge switch 6, the electric energy stored in the capacitor bank 7 discharges to the magnetic coil 3 outside the elastic belt 2, and the instantaneous strong current i through the magnetic coil 3 1 with the eddy current i induced on the belt 2 2 The interaction causes the elastic belt 2 to generate a strong electromagnetic impact force in the circumferential direction to produce plastic deformation, and destroys and removes the oxide film on the welding surface to form a firm solid-phase joint and complete the welding with the elastic body 1.

[0020] refer to figure 2 , the charging and discharging operation process of the present invention is as follows:

[0021] Power on the three-phase half-controlled bridge rect...

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Abstract

A method for welding a bearing band to bullet includes such steps as sleeving the band on the bullet, arranging the electromagnetic coil outside the band, fixing the bullet to welding fixture, and closing a switch to make the capacitor group discharge through the coil. As the strong discharge current and the induced eddy in the band act on each other, a strong impact force acts to the band to generate plastic deformation, so completing the welding.

Description

technical field [0001] The invention relates to a welding method of elastic belts, in particular to a magnetic pulse welding method of elastic belts. Background technique [0002] The belt is a copper ring welded at a certain position of the projectile body. The inner diameter of the elastic belt is basically the same as the outer diameter of the elastic body, and its wall thickness is about 2 to 4 mm. At present, the welding methods of elastic belts at home and abroad are mainly deposition diffusion welding method and friction welding method. [0003] Literature "Material Science and Engineering of Weapons", Vol.25.No.2.2002 Wang Kehong et al. "Research on Deposition Diffusion Welding Technology of Elastic Belts" introduces the method of cladding diffusion welding of elastic belts. This method melts the tape by induction heating or plasma heating without heating the projectile, so that the tape and projectile are metallurgically bonded to form a strong joint. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K13/01B23K20/06F42B14/02
Inventor 马铁军杨思乾
Owner NORTHWESTERN POLYTECHNICAL UNIV
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