Abstruct: The connection mode and welding technological process between tube and tube sheet, tube sheet and shell of low temperature tubular heat exchanger are discussed.

探讨了低温管壳式换热器的管子与管板、管板与壳体的连接方式及焊接工艺。

youdao

In welding, foaming process on a number of technological innovation, product quality with the leading industry.

在焊接、发泡工艺上的多项技术革新，使产品的品质领先同行业。

youdao

The technological process of flash welding and the characteristic of electricity control are analyzed. The control plan with PLC, ladder diagram and the program are put forward.

分析了闪光对头焊工艺过程和电气控制特点，提出采用PLC控制方案，给出了控制系统梯形图及程序。

youdao