Abstract:
A furnace construction for heat treating metallic articles and having a conveyor extending through the heating zone thereof, the conveyor being intermittently driven to provide for step-by-step advancement of the metallic articles through the heating zone.
Abstract:
A high-vacuum electric furnace for heat treating metallic articles in an evacuated heating chamber and including an elevator to which the articles are transferred after the heattreating cycle for transferring the articles to a quench zone for the quick quenching thereof, the quenching zone communicating with the housing in which the heating zone is located and being maintained under vacuum during the quenching operation.
Abstract:
A furnace construction for the heat treating of metal materials and including a conveying apparatus that provides for step-bystep movement of the metal materials through the heat treating chamber of the furnace construction, the drive for the conveying apparatus comprising a walking beam assembly. Sintering of various kinds of materials including metal compacts may be accomplished by the furnace construction and since treatment of the materials at relatively high temperatures is necessary during the heat treating cycle, a special sealing structure is provided for preventing contamination of the high temperature zone during sintering of the materials and the cooling thereof after the sintering cycle.