PM Producer Orders Reclamation Furnace
Signature Vacuum of Meadville, Pa., shipped a tungsten-carbide reclamation furnace to a leading powder-metal producer in Japan. The furnace utilizes the zinc reclamation process to produce friable tungsten carbide. Signature Vacuum's furnace processing concept incorporates two equal sets of crucibles in a vacuum furnace. One is in the heated zone connected by a flow tube to one in the cold zone. At the end of the roasting time, the zinc has evaporated from the heated crucible and condensed in the receiving crucible in the cold zone. The receiver crucible being pre-loaded with tungsten-carbide parts is then placed in the charge area of the furnace, where it is roasted. In this way, the zinc is only handled once on the initial loading.