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Liquid-electricity welding method

A welding method and electro-hydraulic technology, applied in welding medium, welding equipment, welding equipment, etc., can solve the problems of large investment and unit cost, high cost, insufficient flexibility, etc.

Inactive Publication Date: 2007-09-19
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the equipment is relatively complicated and expensive, and the JH-150 precision automatic welding machine used in it has a large investment and unit cost. Secondly, it has high technical requirements and needs to be automatically controlled by programming, which is not flexible enough.

Method used

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  • Liquid-electricity welding method

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Experimental program
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Effect test

Embodiment 1

[0021] As shown in Figure 1, the entire welding system can be roughly regarded as composed of two parts according to its functions: (1) The power supply system including power supply, transformer, ammeter, etc. For the part of welding process parameters, according to the test, the required voltage for welding can be welded from 0V-380V; (2) The welding zone composed of the workpiece to be welded and the electrolyte is used by using a water-soluble salt solution , its components include water-soluble nitrates, nitrites, oxalates, carbonates, bicarbonates, phosphates, sulfates, sulfites and acetates, one or more of the above solution. If the content of each component is a single type of salt solution, the highest is the saturated solubility of the salt. For example, in a NaCl solution at 20°C, a maximum of 36 grams of NaCl can be dissolved in 100 grams of water; The percentage can be from 0% to 100%. A specific example: use NaCl saturated solution to form an electrolyte with g...

Embodiment 2

[0025] The setting of the welding circuit of this embodiment is the same as that of Embodiment 1.

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PUM

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Abstract

The invention is a hydro-electric welding method, belonging to material coupling technique field. The invention specific method are as follows: welding circuit design of arc formed by electrolyte; using commercial AC power supply to connect positive electrode of power supply to the electrolyte, and connecting negative electrode to metal to be welded, contacting the metal to be welded with the electrolyte surface, producing arc for an instant of contacting, here partly metal melting; controlling two parts of metals to be welded to contact with each other during producing arc, until cooling to two parts of metals welding together. The invention with simple device, easily controllable welding process, can not only weld the same kind of metal, but also can weld different kinds of metal, with more simple and convenient use characteristics and applicability than present majority of welding method. The arc designed and produced by the invention can weld familiar metal wire and metal sheet.

Description

technical field [0001] The invention relates to a method in the field of welding technology, in particular to a hydroelectric welding method. Background technique [0002] Welding and connection is one of the key technologies in the development of modern industrial production and science and technology. In the process of scientific research and production practice, almost all the fields involving the development, selection and use of materials have welding problems of metal materials. For the connection of metal wires and metal sheets that are often encountered in production practice, commonly used methods include manual arc welding, brazing, resistance welding and explosive welding. [0003] The traditional metal welding technology can be divided into the following three categories according to its principles: (1) fusion welding, using an external heat source to locally melt the area near the interface of the connected components into a liquid, and then cooling and crystal...

Claims

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Application Information

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IPC IPC(8): B23K9/00B23K35/22
Inventor 吴鲁海何国杜春雷崔金鹏汪家琪
Owner SHANGHAI JIAO TONG UNIV
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