Vacuum/Controlled Atmosphere Batch Furnace.
The basic design comprises of three standard hot zone sizes in four different temperature ranges (1000°C, 1315°C, 1650°C, and 2200°C), with a long list of optional equipment that makes this one of the most versatile custom-designed furnaces available today. The furnace chamber is console-mounted for a compact and highly efficient design and is a "front-loading" design which offers better ergonomics and temperature uniformity compared with vertical top/bottom loaders or round hot zones.
Unlike laboratory or smaller research furnaces, the Workhorse® contains features only found on high-end heat treat furnaces, such as a stainless steel interior vacuum chamber with manual door clamps; heavy duty Molybdenum or Tungsten rod heating elements; and all-metal Tungsten, Molybdenum, or SS radiation shield hot zone for fast heating and cooling, and excellent process cleanliness. You won't find any refractory ceramic insulation or graphite felt/board in this hot zone.
Standard Furnace instrumentation includes a programmable controller with PLC for process control. Name brand vacuum sensors and gauges are available on all systems as well as analog/ digital chart recorders. CVI's "one-button start" control system initiates a complete cycle including pumping, heating, and cooling modes. A full complement of program interlocks and safeties ensures safe and efficient furnace operation and reduces the chance of operator vacuum pumping errors, with our unique "keylock" override design.
The Workhorse® furnace line is available with high-vacuum or low vacuum pumping systems and can include Diffusion pumps, Turbomolecular pumps, or Cryogenic pumping systems, with or without cold traps and refrigerated baffles. A variety of processing environments are available including high/low vacuum and partial and/or positive pressures of Ar, He, and N2 gases, or H2 process gas with our Factory Mutual approved G-10503A gas system.
Variations of the standard Workhorse® design are available for Co-Firing (Series 3560) and Metal Injection Molding (Series 3570). With over 500 units in the field, the Workhorse® design is one of the most proven production designs for heat treating and brazing furnaces worldwide.