Vacuum-brazing in mechanical and apparatus engineering: Gap-free, bright and corrosion-resistant without reworking
The hot water components shown are a typical example of a material-efficient modular design. Individual parts are manufactured from simple, readily available semi-finished products, which are then soldered together. The requirements for the component used in the food sector are freedom from crevices and corrosion resistance. The individual parts are therefore made of austenitic CrNi steel and brazed with a nickel-based brazing alloy with a high Cr content. With an appropriately sized system, several thousand components can be treated in one brazing process. Thanks to the vacuum atmosphere, the components are absolutely bright, gap-free and require no further post-processing.
These advantages are also used in a component whose function is to distribute a centrally fed liquid to 100 dispensing points. The operating conditions in the field of analytics require the use of a titanium alloy. The requirements for the soldered joint are again freedom from gaps and corrosion resistance. The soldering process was carried out with a solder based on TiZrCuNi, which enables a soldering temperature < 950 °C and is therefore below the a-b transformation temperature. Here, too, no further rework was carried out after vacuum-brazing.
Note: Use vacuum-brazing when gap-free and bare components are required and rework is to be eliminated.
Please contact us for a professional exchange.