Grieve 2,000-degrees-F, inert-atmosphere, heavy-duty box furnace heat-treats titanium

No. 954 is an electrically heated, 2,000-degrees-F, inert-atmosphere, heavy-duty box furnace from Grieve, currently used for heat-treating titanium at a customer’s facility. To heat the load, 57 kW are installed in nickel-chrome wire coils supported by vacuum-formed ceramic fiber.

Workspace dimensions are 30 in. wide by 48 in. deep by 30 in. high. The oven’s 7-in.-thick insulated walls comprise 5 in. of 2,300-degrees-F ceramic fiber and 2 in. of 1,700-degrees-F ceramic fiber, while the 6-1/2-in. floor insulation comprises 4-1/2 in. of 2,300-degrees-F firebrick and 2 in. of 1,200-degrees-F block insulation.

The unit is equipped with a roof-mounted, heat-resisting-alloy recirculating fan and powered by a 1-HP motor with V-belt drive. It features a motor-operated vertical lift door, 100-lb.-capacity alloy-loading cart with cast-alloy roller rails, 3-1/2-in.-dia. cast-alloy rollers, and a roller rail loading table with 4-in.-dia. cast-iron rollers.