The Centorr Model 50 High Temperature High Vacuum/Controlled Atmosphere Front Loading Cold Wall Furnace is simple, easy to operate and essentially trouble free. This furnace consists of an electropolished, double walled, all stainless steel, water-jacketed horizontal chamber inside of which is a rectangular heat zone.
The heat zone is resistance heated using metallic heating elements. Heat shields consist of multiple layers of refractory metal sheets. Heating elements and heat shields are easily accessible for inspection and maintenance. The entire inside of the vacuum chamber is designed to conform to the best high vacuum practices with particular attention given to surface finishes and choices of construction materials.
A Centorr "proprietary" rotatable sight port is provided for visual observation of the specimen and for optical pyrometer monitoring. Ports are also provided for thermocouples, gauges, inert gas, and other pertinent instrumentation. Clamps are provided for operation to slightly positive pressure. Loading is done through the full opening front door. The door is hinged by means of a double-pin assembly to prevent scuffing of the O-ring gasket.
The furnace may be mounted on top of a cabinet or on an open steel frame with the vacuum pumping system located immediately underneath the furnace chamber for maximum efficiency. This Furnace may be completely disassembled cleaned and reassembled in under a few hours. With the proper choice of heat zone material, this furnace can operate in vacuum, inert gas, nitrogen and reducing or oxidizing atmospheres.
All controls and instrumentation are front panel mounted in a control cabinet providing ease of visual monitoring and operation. Power input is controlled by silicon controlled rectifiers. Complete system and operator protection are provided by proper vacuum valve sequencing and water-flow interlocks.
The unit is ready to operate as soon as power is connected to the main circuit breaker and water and inert gas connections are made. The furnace is completely assembled and thoroughly tested prior to shipment.