Industrial Ovens & Furnaces #4954508

.Vacuum furnace. . Maximum furnace temperatures and vacuum levels depend on melting points and vapor pressures of heated materials. Vacuum furnaces are used to carry out processes such as annealing, brazing, sintering and heat treatment with high consistency and low contamination.

Reasons to Braze under VacuumThe following reasons support the use of brazing under vacuum: Calibrated use of alloy with magnesium (4045, 4044, 4104, 4004) to prevent excessive Mg sublimation in the vacuum chamberHigh final vacuum due to high capacity pumping systems (cryogenic pump + diffusion pumps), which produce a low oxygen atmosphereRapid transition of the load temperature during the heating phase from 520 C (starting temperature for Mg sublimation) to 605610 C thanks to high power furnaces, a feature that prevents an oxidized layer (Al2O3) from reforming on the surface of the piece newly reduced to AlSuitable fixing systems of the individual heat exchanger prevent the piece from collapsing or deformingUniform load temperature ( 3 C at 605 C) is achieved through accurate control of the output power and by distributing the heating zonesCleanliness of the componentsNo emission of contaminated substances into the atmosphereControlled cooling of the walls and other elements of the furnace with heated water (80 C) to prevent atmospheric water vapor from condensing during loading and unloading process