Heat Treat Furnaces > Quench
In 1994, Abbott Furnace Company formed a partnership with the Swiss furnace manufacturer SAFED to bring the best in European quench furnace technology to the United States. By incorporating their ideas into our already well known furnace designs, Abbott produces one of the highest quality continuous belt quench furnaces available anywhere in the world. A complete line of parts washers, tempering furnaces, and other supplementary items are also available. All equipment is manufactured at Abbott's St. Marys, Pennsylvania Facility and is serviced by Abbott factory trained technicians.
Features:
Gas-Tight Muffle
The gas-tight muffle consists of a NiCr refractory steel duct. The controlled atmosphere inside the muffle is maintained by a continuous gas supply fed in at the chute. The atmosphere is sealed off against outside air and quenchant vapors at three points:
- at the furnace inlet by a flame curtain created by gas combustion;
- at the quench tank inlet by a liquid curtain created by the quenchant circulated by pumps;
- at the outlet of the return duct by a controlled levelwater trap
Mesh Belt Drive Mechanism
The mesh belt is driven by means of a moving hearth plate. The hearth plate is driven by an eccentric generating a reciprocating movement. The mesh belt lying on the hearth plate is carried forward on each advance stroke. At the end of the forward stroke, the slack in the return portion of the mesh belt is taken up by the drive drum whose drive mechanism is synchronized with that of the hearth plate. During the hearth plate return stroke the mesh belt is held in position. The mesh belt is thus advanced step by step as the cycle repeats itself.
Heating Chamber
The heating chamber is divided into several individually controlled heating zones. Additional heating elements are installed around the sides of the chute to prevent any temperature drop in the workpieces prior to quenching.
T-type furnaces, TURBO version
Fans fitted inside the muffle circulate the atmosphere at high speed, uniformly distributing the protective gas.
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Tank Configurations
Tank type G
Tank for water or oil quenching all kinds of workpieces with continuous bucket chain extraction. The buckets are made from corrugated perforated sheet and mounted, one behind the other, on the chain. At the tank discharge end, the buckets tip and dump their load. Alternatively, the G-tank can be equipped with a magnetic or mesh belt conveyer.
Tank type P
(SAFED patent)
Tank for oil or water quenching small parts. The parts drop into an "S" shaped tube located in the quenchant. A high quenchant flow pumped onto the tube conveys the parts to two tilting baskets which are emptied alternately. Due to vigorous quenchant agitation, this system ensures excellent quenching uniformity. The design is compact and does not require a large pit.
Tank type GS and GH
Tank designed for isothermal quenching in molten salt (GS) or hot oil (GH), with thermally insulated tank. Extraction system identical to tank type G, but kept at temperature over all of the emerging part of the bath by a heated and insulated hood.
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