Water cooling jacket for titanium alloy tube ring seam by tungsten argon arc welding and seam following cooling welding method

A technology of argon tungsten arc welding and titanium alloy tube, applied in welding accessories and other directions, can solve the problems of poor protection effect and slow overall heat dissipation.

Inactive Publication Date: 2006-03-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the overall heat dissipation of the titanium alloy tube is slower than that of the titanium alloy plate, and its tubular structure has higher requirements for the design of the protective cover when performing circular seam welding, and the final protection effect is not good. , provide a kind of water cooling jacket for titanium alloy pipe circular seam argo

Method used

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  • Water cooling jacket for titanium alloy tube ring seam by tungsten argon arc welding and seam following cooling welding method
  • Water cooling jacket for titanium alloy tube ring seam by tungsten argon arc welding and seam following cooling welding method
  • Water cooling jacket for titanium alloy tube ring seam by tungsten argon arc welding and seam following cooling welding method

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specific Embodiment approach 1

[0005] Specific implementation mode one: (see figure 1 , figure 2 ) The water cooling jacket used for titanium alloy pipe annular seam tungsten arc welding in this embodiment is composed of C-shaped sleeve 1, upper connecting plate 2, lower connecting plate 3, connecting bolt 4, water inlet pipe 5 and water outlet pipe 6; the upper connection One side plane of plate 2 is sealingly connected with the upper end of C-shaped sleeve 1, one side plane of lower connecting plate 3 is sealingly connected with the lower end of C-shaped sleeve 1, and the other side plane of upper connecting plate 2 is connected with lower connecting plate 3 The other side of the plane is provided with a connecting bolt 4, the water inlet pipe 5 is fixed on the upper end of the C-shaped sleeve 1, the outlet pipe 6 is fixed on the lower end of the C-shaped sleeve 1, and the water inlet pipe 5 and the water outlet pipe 6 are connected with the C-shaped sleeve respectively. The inner cavity 7 of the cartri...

specific Embodiment approach 2

[0006] Embodiment 2: In this embodiment, the material of the C-shaped sleeve 1 is red copper. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0007] Specific implementation mode three: (see image 3 ) The cooling welding method of this embodiment is achieved in this way: first, put water-cooling jackets on two titanium alloy pipes respectively, fasten the water-cooling jackets to the titanium alloy pipes with connecting bolts, and then make the two titanium alloy pipes One end of the groove is butted with each other so that it can form a circular weld and can be welded. The distance between the two water cooling jackets is 10-50mm, the temperature of the circulating cooling water is equal to or lower than 30°C, the welding speed is 10-400mm / min, and the argon gas flow rate is 5-50L / min.

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Abstract

The present invention relates to water cooling jacket for welding and corresponding welding method by means of using the water cooling jacket. The water cooling jacket has upper connecting plate with one side plane connected hermetically with the upper end of the C-shaped sleeve, and lower connecting plate with one side plane connected hermetically with its lower end. The welding method includes screwing the water cooling jacket tightly to the titanium alloy tube. The water cooling jacket of the present invention has simple structure and high cooling effect, and the welding and cooling method is simple, high in weld seam cooling speed, high welding quality, high welding efficiency, less argon consumption and low welding cost.

Description

technical field [0001] The invention relates to a water cooling jacket for welding and a welding method using the water cooling jacket. Background technique [0002] Titanium is a kind of active metal. It reacts with oxygen, nitrogen and hydrogen at a high temperature during welding. It starts to absorb hydrogen at 250°C, and quickly absorbs hydrogen above 300°C; starts to absorb oxygen at 400°C, and quickly Oxygen inhalation; Nitrogen absorption starts at 600°C and quickly absorbs nitrogen above 700°C. Titanium and titanium alloys have great affinity for hydrogen, oxygen, nitrogen, etc. at high temperatures. If the liquid molten pool and molten metal are not effectively protected, they will be more easily polluted by air and the degree of embrittlement will be more serious. Difficulty in welding. At the same time, titanium alloy has poor thermal conductivity and large resistivity, so it generates more heat during welding, has a large heat capacity, and is not easy to lose...

Claims

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Application Information

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IPC IPC(8): B23K9/32B23K9/028
Inventor 吕世雄杨春利张成敬王海涛
Owner HARBIN INST OF TECH
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