Induction brazing welding method for metal part

A technology of induction brazing and welding methods, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems such as weld corrosion, reduce weld strength and conductivity, absorb moisture, etc.

Active Publication Date: 2013-02-06
ZHEJIANG CHINT ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide a kind of induction brazing welding method of metal parts, which solves the existing problems in the prior art, such as carbon steel, stainless steel, silver and silver alloy,

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  • Induction brazing welding method for metal part
  • Induction brazing welding method for metal part
  • Induction brazing welding method for metal part

Examples

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Embodiment

[0168] The following are contact bridge products composed of brass tubes and copper plates, hard copper contact plates on AC contactors and silver cadmium oxide electrical contacts. The induction brazing method of the present invention is used to weld the base metal (copper tube end face, silver oxide The surface of cadmium electrical contact) is plated with 0.2mm-0.3mm silver on the welding surface, calculate the theoretical and actual welding required power according to the weight of the weldment, select the power of the welding equipment, and select the corresponding induction sensor according to the diameter of the weldment and the power of the equipment Coil and induction frequency, the welding current penetration depth △L is selected according to the induction frequency and welding temperature. The heat penetration depth is the difference between the maximum range D2 of the weldment and the current penetration depth △L. Table 10 shows the typical metal weldments Welding m...

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Abstract

The invention discloses an induction brazing welding method for a metal part. The method utilizes induction brazing welding equipment and then is implemented according to the following steps of: a step 1 of selecting the induction brazing welding equipment and determining related parameters; a step 2 of carrying out weldment surface processing, i.e. roughening the welding surface of a weldment, processing the metal-plated surface of the weldment, carrying out matched selection between the weldment and a soldering flux, a brazing filler metal, a welding temperature and a brazing clearance and selecting each process parameter of induction brazing; a step 3 of assembling and fixing the weldment; and a step 4 of implementing welding. According to the induction brazing welding method disclosed by the invention, the induction welding and the induction brazing welding of structures of different materials, pipe fittings, sheets, tube plates and the like are implemented, the sealing performance of a weld joint is improved, the intensity of the weld joint is reduced, the electrical conductivity is obviously improved, and the weld joint has a reliable quality.

Description

technical field [0001] The invention belongs to the technical field of induction welding and relates to an induction brazing welding method for metal parts. Background technique [0002] Induction brazing is the result of the comprehensive interaction of current collection, magnetism, heat, phase change, mechanics, welding, metallurgy, etc. The existing theories explain their mechanisms independently from their own principles. There are many induction heating engineering design and calculation theories. Insufficient, so far there is no complete coupling theory that can use mathematical methods to accurately quantitatively and qualitatively couple the heating physical process. [0003] At present, the internationally popular theoretical research method is to use various temperature measuring instruments to measure the time and temperature curves and high-speed zoom cameras to record the induction brazing process for specific products, and then use the finite difference method...

Claims

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Application Information

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IPC IPC(8): B23K1/002B23K1/20
Inventor 黄和平黄一淼
Owner ZHEJIANG CHINT ELECTRIC CO LTD
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