Heat pipe sealing argon arc welding device and method

Abstract

The invention discloses a heat pipe sealing argon arc welding device and method. The heat pipe sealing argon arc welding device and method is used for welding positions between a lower end cover of a heat pipe and a copper pipe casing, between an upper end cover and a heat column and among a vacuum pipe, the upper end cover and a vacuum pipe seal. The heat pipe sealing argon arc welding device comprises a base plate, a flexible heat column clamp, a welding gun clamp fine tuning table, a motor synchronous belt transmission module and a control module. The flexible heat column clamp is fixed on the base plate, the welding gun clamp fine tuning table is fixed on the right side of the flexible heat column clamp, the motor synchronous belt transmission module is fixed on the lower surface of the base plate, and the control module controls and adjusts the speed of a motor. By means of a heat column stage difference type non-uniform speed rotation welding method, different rotation speeds are adopted in an early stage, a middle stage and a later stage of welding, and welding seams good in sealing performance, high in stability and neat and attractive can be obtained.

Description

technical field [0001] The invention relates to the field of welding, in particular to a heat pipe sealing argon arc welding device and a welding method thereof. Background technique [0002] Thermal column phase-change packaging is the core technology for heat dissipation of high-power LEDs. The thermal column phase-change package bracket has the characteristics of simple structure, small thermal resistance, and fast heat dissipation efficiency. Since the thermal column is a heat transfer system composed of multiple parts, the thermal column welding process, see figure 1 As shown, it is necessary to weld the lower end cover 40 of the heat column with the copper tube shell 41, the upper end cover 42 and the copper tube shell 41, the vacuum tube 43 and the upper end cover 42, and the vacuum tube 43 seal welding. The welding effect directly affects the performance and assembly of the thermal column. In the previous technology, the multi-position solder joints of the hot colu...

AI Technical Summary

Problems solved by technology

[0003] 1. During oxyacetylene welding, molten solder may infiltrate and damage the structure of the liquid-absorbing core, seriously affecting the heat transfer performance of the heat column;

[0004] 2. Oxygen skin is easily formed in an oxygen atmosphere, which will pollute the shell and the liquid-absorbing core and affect the performance of the thermal column;

[0005] 3. Due to the low melting point of the weld, it is generally not possible to perform reduction above 500°C after oxyacetylene welding;

[0006] 4. The welding technology is difficult and the efficiency is low, and it is impossible to realize the automatic production of the assembly line;

[0007] 5. Manual operation has high technical requirements for staff

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