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Welding technique for multi-joint heterogeneous material

A welding process and multi-joint technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of poor solder joint strength and sealing, complex welding process, and high overall cost, and achieve stable welding and process. The route is simple and reasonable, and there is no hidden leakage effect.

Inactive Publication Date: 2016-01-06
WUHU SANHUA REFRIGERATION FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a welding process of multi-joint dissimilar materials to solve the problems in the prior art that the welding process is complicated, the overall cost of welding is high, the welding efficiency is low, the strength and sealing of the solder joints are poor, and the welding is not easy. Stability and leakage hazards and many other defects mentioned above

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0036] to combine figure 1 and figure 2 , a welding process of multi-joint dissimilar materials, specifically including four-joint base metal 5 and four connecting pipes, the four connecting pipes are respectively the first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe Connecting pipe 4, its welding process comprises the following steps:

[0037] (1) Select the joint material: according to the materials of the first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe 4, respectively select the joint material 6 that is compatible with the multi-joint base material 5 or seeps through. ;

[0038] (2) Build the joint assembly: weld the joint material 6 in the step (1) to the corresponding first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe 4 respectively, and make them respectively into a joint assem...

Embodiment 2

[0044] to combine figure 1 and figure 2 , a welding process of multi-joint dissimilar materials, specifically including four-joint base metal 5 and four connecting pipes, the four connecting pipes are respectively the first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe Connecting pipe 4, its welding process comprises the following steps:

[0045] (1) Select the joint material: according to the materials of the first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe 4, respectively select the joint material 6 that is compatible with the multi-joint base material 5 or seeps through. ;

[0046] (2) Build the joint assembly: weld the joint material 6 in the step (1) to the corresponding first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe 4 respectively, and make them respectively into a joint assembl...

Embodiment 3

[0052] combine figure 1 and figure 2 , a welding process of multi-joint dissimilar materials, specifically including four-joint base metal 5 and four connecting pipes, the four connecting pipes are respectively the first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe Connecting pipe 4, its welding process comprises the following steps:

[0053] (1) Select the joint material: according to the materials of the first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe 4, respectively select the joint material 6 that is compatible with the multi-joint base material 5 or seeps through. ;

[0054] (2) Build the joint assembly: weld the joint material 6 in the step (1) to the corresponding first connecting pipe 1, the second connecting pipe 2, the third connecting pipe 3 and the fourth connecting pipe 4 respectively, and make them respectively into a joint assembly...

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Abstract

The invention discloses a welding technique for a multi-joint heterogeneous material and relates to the field of welding techniques. The multi-joint heterogeneous material comprises a multi-joint parent material body and a plurality of connecting pipes. Through the five main technological steps including selection of joint materials, assembly of a joint assembly, determination of welding technological parameters, welding and postweld treatment, the welding efficiency is high, a technological circuit is simple and reasonable, and production cost is low; different welding techniques are selected according to the connecting pipes made of different materials, welding is conducted once or multiple times, the welding sealing performance is good, welding is table, and leakage hidden dangers are avoided.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding technology of multi-joint dissimilar materials. Background technique [0002] In the welding process of dissimilar materials, due to the great gap between the chemical composition, thermal conductivity, melting point and various mechanical properties of the two, the difficulty of welding is much greater than that of similar materials. The performance is poor and unstable, and there is a hidden danger of leakage. The overall cost of one-time welding or two-time welding in the existing process is relatively high. [0003] In the prior art, many improvements have been made to address the above problems. For example, the publication number CN104551352A discloses a welding method for dissimilar metals, which is used for welding the shell connection end made of low alloy steel and the safety end made of stainless steel. The method comprises the following steps: using stainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K103/18
CPCB23K37/00
Inventor 樊锋胡泽华
Owner WUHU SANHUA REFRIGERATION FITTINGS
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