welding on site

5Ni chemical compo-nents,mechanics property and welding possibility,it introduces in detail the site welding procedure of ET1901ethylene tower.

5Ni)的化学成分、力学性能及可焊性,详细介绍了ET1901(乙烯塔)的现场焊接过程。

In accordance with characteristics of site installation in steam power plant, the welding technology of bevel side bead welding intermedium in downcomer of 42CrMo steel was proposed which could solve the problem of site welding of the weld tine.

根据电厂现场安装的特点，提出了在４２ＣｒＭｏ坡口侧堆焊过渡层现场焊接工艺，成功地解决了该焊口的现场焊接问

Local PWHT for circumferential joints of hydroreactor afer undertake site rewelded was introduced.

介绍了在用加氢反应器现场焊接修理后的消除焊接残余应力的工艺方法之一———环缝局部电加热处理 ,记述了环缝局部电加热处理的工艺过程 ,并指出了需要注意的事