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Large-size Al target welding method

A welding method and target material technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., to achieve the effect of reducing the porosity of finished products

Inactive Publication Date: 2012-07-04
光洋新材料科技(昆山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the defects existing in the existing aluminum target welding method and provide a new large-scale aluminum target welding method. The technical problem to be solved is to obtain less pores and shallow cracks by improving the specific operation of the welding process. welding aluminum target

Method used

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Experimental program
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Effect test

Embodiment 1

[0023] Heat the target and the back plate separately before welding, the preheating temperature is 200°C, when the temperature of the target and the back plate reaches 190±5°C, metallize it, put in the solder and clean the excess solder on the target , place a 0.3mm gap line, the amount of solder put in is 10 times the weight of the solder, lift the target vertically with a vacuum suction cup, place it on the corresponding position on the backplane, and lower the target to a distance of about 10cm from the backplane. Apply pressure on one side to make the target tilt about 20°, then lower it to the back plate in a stable position, adjust the position of the target according to the drawing, and apply 500kg of pressure to achieve the purpose of retaining proper solder, and finally cool naturally to room temperature to obtain a welded product.

Embodiment 2

[0025] Heat the target and the back plate separately before welding, the preheating temperature is 230°C, when the temperature of the target and the back plate reaches 190±5°C, metallize them, put in the solder and clean the excess solder on the target , place a 0.3mm gap line, the amount of solder put in is 10 times the weight of the solder, lift the target vertically with a vacuum suction cup, place it on the corresponding position on the backplane, and lower the target to a distance of about 10cm from the backplane. Apply pressure on one side to make the target tilt about 20°, then lower it to the back plate in a stable position, adjust the position of the target according to the drawing, and apply 500kg of pressure to achieve the purpose of retaining proper solder, and finally cool naturally to room temperature to obtain a welded product.

Embodiment 3

[0027] Before welding, heat the target and the back plate respectively, the preheating temperature is 250°C, when the temperature of the target and the back plate reaches 190±5°C, metallize them, put in the solder and clean the excess solder on the target , place a 0.3mm gap line, the amount of solder put in is 10 times the weight of the solder, lift the target vertically with a vacuum suction cup, place it on the corresponding position on the backplane, and lower the target to a distance of about 10cm from the backplane. Apply pressure on one side to make the target tilt about 20°, then lower it to the back plate in a stable position, adjust the position of the target according to the drawing, and apply 500kg of pressure to achieve the purpose of retaining proper solder, and finally cool naturally to room temperature to obtain a welded product.

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Abstract

The invention relates to a large-size target welding method, comprising steps of: step 1, preheating a target and a backboard, step 2, metalizing the target and the backboard; step 3, manufacturing a solder layer and arranging a gap line; step 4, covering the target; step 5, regulating the position of the target and pressing; step 6, naturally cooling to room temperature to finish the welding, wherein the preheating temperature in step 1 is controlled at 200 DEG C; the metallization temperature for the target and the backboard in step 2 is controlled at 185-195 DEG C; the gap line in step 4 is 0.3mm; and the exerted force in step 5 is 500kg. A large-size aluminum target manufactured by the large-size target welding method is low in porosity and few in defects, saves cost and is more beneficial to practical use.

Description

technical field [0001] The invention relates to an Al target manufacturing method, in particular to a large Al target welding method. Background technique [0002] Almost all welding methods are used for aluminum and aluminum alloys, but the weldability of aluminum and aluminum alloys is poor, and different types of welding defects often occur in the welding process and remain in the weld, such as pores and cracks Wait. Weld porosity and crack defects account for 40% to 50% of the total number of welding waste, resulting in a great waste of materials. [0003] In view of the defects of the above-mentioned existing aluminum target welding technology, the designer actively researches and innovates in order to create a new large-scale aluminum target welding method to make it more practical. Contents of the invention [0004] The main purpose of the present invention is to overcome the defects existing in the existing aluminum target welding method and provide a new large-...

Claims

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Application Information

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IPC IPC(8): B23K31/02
Inventor 林尚义庄世雄
Owner 光洋新材料科技(昆山)有限公司