等离子弧焊技术在承压设备制造中的应用

Application of Plasma Arc Welding Technology in Manufacture of Pressure Equipments

等离子弧焊电弧穿透能力强,在一定厚度范围内,开I形坡口,可以一次焊透。为此,在承压设备,特别是在高合金或特种材料的容器制造中,将其作为一种优质、高效、经济的焊接方法,并在行业上得到广泛的应用。以不锈钢、镍基合金、钛、锆等设备的纵环缝焊接为例,从坡口加工、组对质量控制、焊接参数优化等方面介绍等离子弧焊技术的实施,并在多台产品制造中取得令人满意的效果。

Plasma arc welding has powerful penetrative ability. It is able to penetrate a thicker plate with I grooved in single bead. Therefore, the plasma arc welding is regarded as a high quality and effective meth- od in the manufacturing of high-alloy steel or non-ferrous alloy material pressure vessels. It has been wide- ly used in the industry. Longitudinal girth welding of stainless steel, nickel base alloy, titanium, zirconium and other metal equipments were token as examples. From the groove processing, group of quality control and welding parameters, the application of plasma arc welding technology was introduced, and satisfactory results were obtained in multiple product manufacturing.