HPO

High-temperature inert atmosphere, heavy-duty furnace

The new furnace No. 1039 is a 2,000 °F (1,093 °C), inert atmosphere, heavy-duty furnace from Grieve, currently used for heat treating turbine components at the customer’s facility. Workspace dimensions of this furnace measure 36” W x 60” D x 36” H. 73 kW are installed in ICA wire coils supported by vacuum formed ceramic fiber installed on all interior surfaces, including door and beneath the hearth.

This Grieve inert atmosphere furnace has a roof-mounted, heat-resisting alloy circulating fan powered by a 1-HP motor with V-belt drive, water cooled bearings and inert atmosphere shaft seal.  Furnace features include 9” thick insulated walls comprised of 5” of 2,300 °F ceramic fiber and 4” of 1,900 °F block insulation; 8 ½” floor insulation comprised of 4 ½” of 2,300 °F firebrick and 4” of 1,900 °F block insulation.

Other features include ¼” plate exterior reinforced with structural steel, ½” steel face plate at doorway with air-operated vertical lift door. Inert atmosphere construction includes continuously welded outer shell, high-temperature door gasket, sealed heater terminal boxes, inert atmosphere inlet, inert atmosphere outlet, inert atmosphere flow meter and manual gas valve.

Controls on the furnace No. 1039 include a digital programming temperature controller, a manual reset excess temperature controller with separate contactors, paperless event recorder and SCR power controller.

(Source: Grieve Corp.)

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