The utility model relates to a change-over switch of AC-DC electricwelder.
本实用新型涉及一种交直流两用电焊机的转换开关。
2
It finds better economic overhaul plan and try to make the electricwelder repaired reach the original technical properties to meet the demand of pipe production process.
寻求较经济的大修方案，努力使修理后的电焊机达到原有技术性能，以满足钢管生产工艺需要。
3
For the purpose of economizing on raw materials and reducing consumption, the detailed analysis and design of the regulating circuit of TIG electricwelder have been presented in this article.