Pre-treatment improving target material binding method

Abstract

The invention discloses a pre-treatment improving target material binding method which comprises the following steps: a, a step before pre-treatment; b, a step of pre-treatment of a back tube; c, a step of pre-treatment of a metal target tube; and d, a binding step. According to the pre-treatment improving target material binding method provided by the invention, the pre-treatment effect before binding a rotary target is improved effectively, and the binding quality of the rotary target is improved.

Description

technical field [0001] The invention relates to the technical field of pretreatment of rotating target binding, in particular to a target binding method with improved pretreatment. Background technique [0002] The pretreatment effect on the back tube of the rotating target and the metal target tube before binding directly affects the bonding firmness and welding rate of the rotating target binding. The low bonding firmness and welding rate make the rotating target in use Poor electrical conduction, uneven heat dissipation, and easy falling off will seriously affect the use of the product, so the pretreatment before binding of the rotating target is particularly important. [0003] The metal target tube is slender as a whole, and the length of the metal target tube is as long as 2.7 meters. Due to the precise control of the target structure, the inner wall of the target tube is processed by drilling, boring and other processes to process the size and shape of the inner circl...

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Problems solved by technology

[0002] The pretreatment effect on the back tube of the rotating target and the metal target tube before binding directly affects the bonding firmness and welding rate of the rotating target binding. The low bonding firmness and welding rate make the rotating target in use Poor electrical conductivity, uneven heat dissipation, and easy to fall off will seriously affect the use of the product, so the pretreatment before binding of the rotating target is particularly important

[0003] The metal target tube is slender as a whole, and the length of the metal target tube is as long as 2.7 meters. Due to the precise control of the target structure, the inner wall of the target tube is processed by drilling, boring and other processes to process the size and shape of the inner circle, but the length There is a tolerance range in the roughness and size of the inner wall of the tube

Occasional surface defects caused by the roughness variation of the inner wall and tool vibration are unavoidable. During bonding, problems such as wetting and degassing at the recessed position will inevitably affect the bonding quality

The traditional metallization treatment uses ultrasound to enhance the bonding force between the bonding solder and the target tube, but for the rough inner wall of the long tube target that cannot be accurately measured and removed, a single ultrasonic metallization cannot ensure a relatively Venting and coating of sunken defects such as deep knife marks

And because the metal target tube is slender, when ultrasonically brushing the metallization layer on the metal target tube binding surface, it is impossible to check and judge the uniformity of the metallization layer on the metal target tube binding surface, and it is impossible to effectively ensure the bonding solder and the metal target There is sufficient wettability between the tubes, and the pretreatment effect of the rotating target before binding is poor, resulting in a low welding rate of the rotating target binding, and it is difficult to guarantee the quality of the rotating target binding

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