Solar Manufacturing Inc. announced that Stack Metallurgical
Services of Portland, Ore., purchased a vacuum heat-treating furnace. The Model
HFL-5748-2EQ has a work zone that measures 36 inches wide x 36 inches high x 48
inches deep with an operating temperature up to 2500°F and a work-load capacity
of 5,000 pounds. The energy-efficient hot-zone insulation package includes a
graphite-foil hot face backed by four layers of ½-inch graphite felt, all
housed in a 304 stainless steel support ring. A large Stokes mechanical pump, a
Stokes Roots blower pump and a Varian diffusion-pump system are included for
vacuum operation to 1 x 10-5torr.
The diffusion-pump heaters are monitored and controlled by a
Solar ConserVac™ system for minimal power consumption. The external
gas-cooling system incorporates a 150-HP motor and supporting heat exchanger
for rapid cooling of the workload at 2-bar (15-psig) gas pressure through fixed
multiple graphite-tapered gas nozzles surrounding the workload. A SolarVac 5000™
computerized instrument package, featuring an interactive touch-screen panel
and Wonderware™ software, provides user-friendly furnace control and
operation.
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