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No. 954 is an electrically-heated 2000°F(~1093°C) inert atmosphere heavy-duty box furnace from Grieve, currently used for heat treating titanium at the customer’s facility. 57 KW are installed in nickel chrome wire coils, supported by vacuum-formed ceramic fiber, to heat the load. Workspace dimensions are 30” wide x 48” deep x 30” high. The oven’s 7” thick insulated walls comprise 5” of 2300°F ceramic fiber and 2” of 1700°F ceramic fiber, while the 6-1/2” floor insulation comprises 4-1/2” of 2300°F firebrick and 2” of 1200°F block insulation.
The unit is equipped with a roof-mounted heat-resisting alloy recirculating fan, powered by a 1-HP motor with V-belt drive, motor-operated vertical lift door, 100 lb. capacity alloy loading cart with cast alloy roller rails, 3-1/2” diameter cast alloy rollers and a roller rail loading table with 4” diameter cast iron rollers.
This Grieve furnace also features inert atmosphere construction, consisting of a continuously welded outer shell, high temperature door gasket, sealed heater terminal boxes, inert atmosphere inlet, inert atmosphere outlet and inert atmosphere flowmeter.
Controls onboard No. 954 include a digital programming temperature controller, manual reset excess temperature controller with separate contactors, plus a strip chart recorder.
For more information, please contact: THE GRIEVE CORPORATION, Web: www.grievecorp.com.
Agency contact: Tim Daro, Bernard & Company
NEWS RELEASE: THE GRIEVE CORPORATION
DATE: December 21, 2009
No. 965 is a 1350ºF (~733ºC) electrically-heated cabinet oven from Grieve, currently used heat treating titanium at the customer’s facility. Workspace of this unit measures 24”W x 24”D x 24”H. 30KW are installed in nickel chrome wire coils, supported by a stainless steel frame, to heat the oven, while a 1300CFM, 1-1/2HP alloy recirculating blower provides horizontal airflow to the workload.
This Grieve cabinet oven features 11” thick insulated walls, comprising 2” of 1900ºF (~1038ºC) block and 9” of 10 lb/cf density rockwool insulation, as well as an aluminized steel exterior, Type 304 2B finish stainless steel interior, plus inner and outer door gaskets, with the inner gasket sealing directly against the door plug and the outer gasket sealing directly against the face of the oven for optimum seal integrity.
Oven controls on No. 965 include a digital indicating temperature controller, manual reset excess temperature controller with separate contactors, recirculating blower airflow safety switch, 10” diameter circular chart temperature recorder, plus an an SCR power controller and fused disconnect switch.
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