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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. To heat the load, 57KW are installed in nickel chrome wire coils, supported by vacuum-formed ceramic fiber. 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 6-½" floor insulation comprises 4-½" 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/" 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.
