The V-L soldering tube furnace is suitable for generating the lowest achievable operation pressures. Due to this vacuum capability, the highest purity gas atmosphere can be achieved.
The V-L is a vertically mounted tube furnace with automated controls for the sample loading and unloading, in addition to, raising and lowering the furnace hearth over the integrated quartz tube containing the sample material. The quartz tube is connected to the furnace, so in loading the soldering furnace, the quartz tube and furnace hearth are raised upwards to freely access the sample area. After the sample is loaded, the quartz tube and furnace hearth are lowered and locked into position for the heat treatment process where high vacuum operation is achievable. The furnace hearth can also be raised upward and away from the quartz tube after the heating process for fast cooling of the specimen in vacuum, air, or in an inert gas atmosphere.
The soldering furnace utilizes CrFeAl wire elements and ceramic fibre insulation. The temperature is monitored and controlled via thermocouples. The maximum temperature is limited by the quartz tube and can be as high as 1050 °C under vacuum operation. The quartz tube is closed at the top section with the bottom section open where samples are loaded and vacuum systems can be attached by a polymer sealing. The usable space has a diameter of 180 mm and a height of 300 mm providing an approximate volume of 2 l that can be rapidly evacuated. Additionally, the quartz tube provides a very clean operating space. Lastly, the V-L offers fast cooling possibilities and a high degree of user accessibility to the furnace.
High vacuum levels of 5 x 10-6 mbar and better are achievable. Gases are controlled by various dosing and controlling devices. The vacuum is provided by different pumping stations depending on the vacuum requirements.
annealing, brazing, CIM, debinding, degassing, drying, MIM, pyrolysis, Quenching, rapid prototyping, sintering, soldering, sublimation, synthesis, tempering