Hard-soldering method, e.g. for metallic exhaust catalyst substrate honeycomb, involves pre-cleaning stage, and removes solder grains adhering outside desired soldering boundary

摘要

Before soldering, for which adhesive and solder powder are introduced into the joint, a cleaning stage is performed. Solder grains are removed where they project beyond the soldering boundary defining the desired soldering region (2). The metal assembly is first constructed using smooth, structured metal sheets (9). Channels (10) are bounded by V-sections (11), into which the soldering regions extend.