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No. 1033 is a 500ºC (932ºF) inert atmosphere oven from Grieve, currently used for heating polymer fibers at the customer’s facility. Workspace dimensions of this oven measure 54” W x 36” D x 84” H. 60 KW are installed in Incoloy-sheathed tubular elements to heat the oven chamber, while a 10,000 CFM, 7-1/2 HP recirculating blower provides vertical downward airflow to the workload.
This Grieve oven features 8” thick insulated walls plus an aluminized steel exterior and Type 304, 2B finish stainless steel interior. The inert atmosphere construction comprises a gas pressure regulator, flow meter, pressure gauge, internal high-temperature gasket, all welded expansion connection in doorway throat, air jacket on inner oven for cooling, ½” thick cellular silicone rubber atmosphere seal, blower shaft seal, pneumatic positive latching door hardware, adjustable offset door hinges, outlet with pressure relief, interior seams all welded gas-tight plus all wall penetrations are fitted with compression fittings. A 0-1500 CFM blower pulls air through the air jacket on the inner oven for faster cooling.
Controls on No. 1033 include a digital programming temperature controller, manual reset excess temperature controller with separate contactors, recirculating airflow safety switch, paperless event recorder, SCR power controller and trace level oxygen analyzer.
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No. 872 is an electrically-heated 1000°F (~532°C) inert atmosphere oven from Grieve, currently used for annealing copper foil parts. 36 KW are installed in Incoloy sheathed tubular heating elements. Workspace dimensions are 36” wide x 48” deep x 36” high. A 2000 CFM, 2 HP recirculating blower provides universal airflow to the workload.
The oven has 8” thick insulated walls comprised of 2” of 1900°F block and 6” of 10 lb/cf density rockwool, plus an aluminized steel exterior and interior. A structural steel base is provided to raise the roller rails to a 20” loading height. These roller rails, mounted on the bottom of the oven workspace, are rated for 2000 lb. loads.
No. 872 features Grieve inert atmosphere oven construction, which includes a pressure regulator, flow meter, pressure gauge, internal high-temperature gasket, all welded construction in the doorway throat, air jacket on inner oven for cooling, ½” thick cellular silicone rubber atmosphere seal, blower shaft seal, positive latching door hardware, adjustable offset door hinges, outlet with pressure relief, interior seams welded gas-tight and all wall penetrations fitted with compression fittings.
A 975 CFM blower with automatic dampers pulls air through the air jacket on the inner oven for cooling, while the oven’s quick-purge system includes a 1200 SCFH flow meter and solenoid to open the outlet.
Controls onboard No. 872 include a recording and programming temperature recorder and fused disconnect switch.
For more information, please contact: THE GRIEVE CORPORATION, 500 Hart
Road, Round Lake, Illinois 60073-2835 USA. Phone: (847) 546-8225. Fax: (847) 546-