Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Patent
1995-04-10
1996-10-15
Kastler, Scott
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
266252, B22C 1302
Patent
active
055650465
ABSTRACT:
The method and apparatus for reclaiming substantially pure sand from a heat treating furnace; wherein a casting with sand core and/or sand mold, comprising sand bound by a combustible binder, attached thereto is introduced into the heat treating furnace; or, wherein portions of sand core and/or sand mold that are not attached to a casting are introduced into the heat treating furnace. Wherein, the reclaiming within the furnace is carried out, in part, by a fluidizer that promotes binder combustion by one or more process of agitating, heating, and oxygenating. Wherein, the characteristics of the reclaimed sand are selectively controlled by controlling the dwell time of the sand within the heat treating furnace.
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The Specification and Figures of Serial No. 07/705,626 Jul. 30, 1991.
Economical Used Energy Type Continuing Heat Treating Furnace For Aluminum Castings-Kogyo-Kanetsu vol. 21 No. 2 pp. 29-36-Published Mar. 1984.
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Paul M. Crafton-Heat Treating Aging System Also Permits Core Sand Removal-Reprinted from Sep. 1989-Modern Casting Magazine.
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Sales Brochure Describing Thermfire Brand Sand Reclamation, Gudgeon Brothers, Ltd., Believed to be Known by Others Prior to Sep. 1989.
Sales Brochure Describing Simplicity/Richards Gas-Fired Thermal Reclamation System, Simplicity Engineering, Inc., Believed to be Known by Others Prior to Sep. 1989.
Sales Brochure Describing Air Trac Brand Fluidizing Conveyor, Air Trac Systems Corp., Believed to be Known by Others Prior to Sep. 1989.
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Crafton Scott P.
Crafton, Jr. Paul M.
Consolidated Engineering Company, Inc.
Kastler Scott
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