随着等离子电弧技术在切割、喷镀、焊接方面的应用,近几年来,将等离子电弧用作金属表面堆焊方面,也获得很大的进展。诸如有些部门,采用预制的硬质合金圈以及手工送丝等方面,进行等离子电弧堆焊。然而,采用粉末等离子电弧堆焊,国内目前还是一项比较先进的工艺。由于它的独特的优越性,正在为有关部门所重视,并进行着广泛的试验研究。粉末等离子堆焊这项新工艺的发展和应用,为机械另件表面硬化开僻了 With the plasma arc technology in cutting, spraying, welding applications, in recent years, the plasma arc as a metal surface welding, also made great progress. Such as some departments, the use of prefabricated carbide ring and hand-fed, etc., for plasma arc surfacing. However, the use of powder plasma arc surfacing, the domestic is still a more advanced technology. Because of its unique advantages, attention is being given to the relevant departments, and carried out extensive experimental study. Powder plasma surfacing The development and application of this new technology for the mechanical parts of the other open surface hardening