干式高压环境对TIG焊接电弧温度的影响

干式高压焊接时,环境压力对焊接电弧的影响不容忽视.电弧温度是焊接电弧物理特性的重要参数之一,测定高压环境下的电弧温度对于深入理解焊接电弧在高压环境下的物理特性,从而寻求改善水下干式高压焊接质量的新途径有重要意义.介绍了电弧等离子体光谱诊断方法,对高压环境下的TiG电弧光谱进行分析,建立了一套切实可行的高压环境电弧温度测量方法.对高压环境焊接电弧温度变化规律进行了分析,建立了环境压力与电弧温度的函数关系式,并对试验结果进行了讨论.研究结果对于高压环境焊接电弧物理特性的研究具有参考价值.

Welding arc temperature in hyperbaric TIG welding

The effect of environment pressure on hyperbaric TIG (tungsten inert-gas)welding arc cannot be neglected.The arc temperature is one of the most important parameters.It has important significance to measure the temperature of hyperbaric TIG welding arc in understanding physical property of hyperbaric welding arc and seeking improvement of the quality of underwater hyperbaric welding.The spectral diagnostics was introduced, and the TIG welding arc in high-pressure was analyzed.A set of feasible method of highpressure arc temperature measurement was established.The welding arc temperature in high-pressure was analyzed, and the function between the environment pressure and the arc temperature was established. The experimental result was analyzed.This research is significant and valuable to the study of hyperbaric welding arc physics.