紫铜和不锈钢是两类应用很广的金属材料,为了满足不同结构的要求,生产上经常需要它们的复合结构,由于它们的化学成分不同,所以在材料和焊接性能等方面差异很大,要进行紫铜和不锈钢异种材料间的焊接,是存在一定困难。我们在经过长期摸索后,对紫铜和不锈钢焊接,采用氧—乙炔焰黄铜钎焊工艺,较好地解决了这一难题,现介绍如下: 一、紫铜和不锈钢的焊接性能紫铜导热性高,这种高的导热性,对施焊时保持局部焊接温度不利。因此在紫铜施焊前必须预热,施焊时必须使用较强 Copper and stainless steel are two types of widely used metal materials. In order to meet the requirements of different structures, the composite structures that are often required for their production are widely different in material and welding properties because of their different chemical compositions. Copper and stainless steel dissimilar materials welding, there are some difficulties. After long-term groping, we use oxygen-acetylene flame brass brazing technology to solve the problem of copper and stainless steel welding. Now we introduce the following: First, the welding performance of copper and stainless steel Copper has high thermal conductivity, This high thermal conductivity, the local welding temperature to maintain the negative. Therefore, before the copper welding must be preheated, welding must be used stronger