Pre-Sintered Diffusion Brazing Preforms (PSP)
- Metallurgy products composed of superalloy and brazing powders from a customized blend. They are ideal for dimensional restoration as well as crack repair of blades and vanes subjected up to 1300°C in aero engines. Available in various compositions and shapes – e.g. plates, from 0.25 to 5 mm thickness can be cut to required dimensions. For difficult-to-reach areas it can be produce as a paste and paint. Thanks to low porosity (less than 2%), shrinkage is minimized thus only small allowance is needed for grinding/machining after brazing.