Premier Furnace Specialists designed, built and installed an
aluminum solution heat-treat system for a manufacturing company located in the eastern
U.S. The electrically heated system consists of two 48-inch-diameter x 72-inch-deep
pit-mounted furnaces and a quench tank. Each furnace can process two 36-inch-tall
stacking baskets holding 3,000 pounds of aluminum castings with an overall
capacity of 4,000 pounds. They are capable of heating aluminum product from 250°F
to 1100°F while maintaining the customer’s requirement for a tight temperature
tolerance of ±10°F at 1100°F.
The furnaces are fully insulated with a combination of
ceramic fiber and firebrick, and they are rated at 150 kW each. The water-based
quench system is capable of processing a 4,000-pound load at 160°F inside a
stainless steel tank. Agitation is
provided by a large nonferrous prop mounted in a draft tube driven by a motor
and VFD. The furnaces also incorporate the latest features in Honeywell temperature
control.
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