一、前言众所周知,由于13％铬不锈钢具有良好的耐腐蚀性,抗氧化性能、机械性能和工艺性能,并且所含合金元素少而成本低,尤为可贵的是具有很高的减振性等优点,因此它们在各个领域都得到了广泛应用。然而,在这种钢材的使用中,焊接技术方面常常还存在着焊接接头性能不合格或产生裂缝等问题。近几年,阀门工作面堆焊钴基合金所采用的方法已有很多。手工电弧堆焊因其具有设备简单,操作方便等优点,故在阀门工作表面堆焊生产中被广泛采用。多年来的生产实践使人们对1Cr13半马氏体不锈钢阀门工作面手工电弧堆焊钴基合金有了一定的认 I. Preface As we all know, as 13% chromium stainless steel has good corrosion resistance, oxidation resistance, mechanical properties and process performance, and contains less alloying elements and low cost, especially valuable is a high damping and other advantages , So they have been widely used in all fields. However, in the use of such steels, there are often problems in the welding technique such as unqualified welded joints or cracks. In recent years, there are many methods for surfacing welding cobalt-based alloy on the valve face. Due to its advantages of simple equipment, convenient operation and so on, it is widely used in surfacing welding on the working surface of valve. Over the years the practice of production so that people on the 1Cr13 semi-martensitic stainless steel valve surface arc welding manual arc welding of cobalt-based alloy has a certain recognition