Vacuum heat treatment of steels, superalloys, titanium alloys, etc. guarantees high quality metallurgical results as well as bright surfaces. TAV vacuum heat treatment furnaces can be equipped with:
Vacuum furnaces find application in several brazing applications, including copper and nickel brazing of stainless steel, nickel brazing of aero-engine/IGT components, aluminium brazing, titanium brazing, stainless/ceramic brazing, etc. TAV vacuum furnaces for stainless steel heat exchangers can be provided either with single or multiple loading zones and with convection assisted heating for increased heat speed and reduced cycle times.
Features include static/dynamic/flushing partial pressure regulation and multidirectional gas flow configurations. Fluxless brazing of aluminium is carried out in vacuum furnaces. High operating vacuum levels require large pumping groups, complete with cryogenic traps and water vessel temperature control. Thermic chambers are with multiple reflecting stainless steel shields and Ni-Cr heating elements. Multiple loading zones coupled with multiple independently controlled heating zones allow for better heat transfer resistor-load and therefore shorter cycle times. Production times can be further reduced with forced gas flow of inert gas throught the load and a water cooled heat exchanger.
TAV vacuum sintering of stainless steels is carried out in vacuum at temperatures around 1250°C.
Thermic chambers can be either graphite or all metal.
High cooling gas pressure allow sinter-hardening processes.
M I M – M e t a l I n j e c t i o n M o u l d i n g
TAV MIM vacuum furnaces operate at temperatures up to 1400°C 1.600°C in either graphite or all metal chambers (ML / Molybdenum / Tungsten) for sintering of stainless steels, titanium, ceramics, etc.
Static/dynamic/flushing partial pressure regulation system complete with flowmeters guarantee a precise control of all the sintering parameters.
MIM-box fixture allow for single-cycle debinding+sintering processes.
H a r d m e t a l – s i n t e r H I P
temperatures up to 1600°C and pressures up to 100bar to sinter and sinterHIP hard metals.
High temperature processing of advanced ceramics (sintering of SiC, AlN, etc, Liquid Silicon Infiltration) is carried out in vacuum furnaces with operating temperatures up to 2.500°C.
Geometry can be either vertical (bottom loading and top loading) and horizontal.
Thermic chamber can be either graphite or all metallic (Molybdenum and Tungsten). Multiple heating zone systems for increased temperature uniformity are controlled by automatically retractable thermocouples and by optical pyrometers.
Vacuum levels can be in the range of 1E-1 – 1E-2mbar, either with oil sealed or dry pumps. Diffusion pump or turbomolcular pump groups allow for operating vacuum levels in the 1E-4 – 1E-6mbar range.
Fast cooling system can be integrated in the furnace for reduction of total cycle time and increased production.
TAV manufactures high vacuum furnaces for ultra-clean high temperature applications.
The vacuum chambers are in stainless steel, with water cooled, metallic sealed ConFlat flanges. They undergo ultrasonic cleaning before furnace assembling. Vacuum valves are gate type.
The pumping groups are complete with high vacuum systems, such as diffusion pumps (provided with cryo-cooled trap), turbomolcular pumps and cryogenic pumps.
The thermic chambers are all metallic, either Molybdenum and Tungsten.
TAV manufactures its laboratory high vacuum furnaces in a dedicated clean room.
Typical applications are advanced brazing (nuclear research) and all high vacuum laboratory research.
