High temperature soldering
The high-temperature soldering (soldering HT) is a soldering process , for joining the predominantly thermally and mechanically highly stressed components made of stainless steel , nickel - and cobalt alloys , and ceramics is used.
With this process, tensile strengths on stainless steel connections of over 500 N / mm 2 can be achieved. HT soldering is a flux-free soldering process that takes place at temperatures of more than 900 ° C. The soldered connections are primarily made in closed vacuum ovens or in protective gas ovens with a hydrogen or argon atmosphere . Copper , nickel and cobalt solders are used as brazing materials .