Metal founding – Process – With measuring – testing – inspecting – or condition determination
Patent
1995-06-06
1998-03-24
Batten, Jr., J. Reed
Metal founding
Process
With measuring, testing, inspecting, or condition determination
148511, 148549, 148550, 164122, 164900, B22D 1802, B22D 2300
Patent
active
057301980
ABSTRACT:
A temperature profile is determined of a metal sample for the metal to be converted to establish a temperature range indicative of a partially solid and partially liquid state of the metal. With this temperature profile, a metal preform is heated at a controlled rate from a temperature below the temperature range to a temperature within the range defined by the temperature profile to achieve a select percent by volume of liquid in the metal. This controlled heating to a desired temperature, which may be at a uniform rate, followed by holding at the desired temperature, thermally converts a dendritic structure of the material into a globular structure. The thermally converted metal preform is then recovered for subsequent use such as shaping into a desired article.
REFERENCES:
patent: 4106956 (1978-08-01), Bercovici
patent: 4415374 (1983-11-01), Young et al.
patent: 4580616 (1986-04-01), Watts
patent: 4621676 (1986-11-01), Steward
patent: 4694881 (1987-09-01), Busk
patent: 4706730 (1987-11-01), Sanchez-Caldera et al.
patent: 4771818 (1988-09-01), Kenney
patent: 4909858 (1990-03-01), Reiso
patent: 5009844 (1991-04-01), Laxmanan
patent: 5133811 (1992-07-01), Kirkwood et al.
patent: 5144998 (1992-09-01), Hirai et al.
patent: 5306365 (1994-04-01), Reighard
patent: 5375645 (1994-12-01), Brueker et al.
patent: 5571346 (1996-11-01), Bergsma
"Thixoforming of Al Alloys Using Modified Chemical Grain Refinement for Billet Production by Wan et al International Conf Al Alloys: New Process Technologies" Ed Marina di Ravenna Italy 3-4 Jun. 1993 p. 115.
"Thixocasting of Steel" by Flemings and Young, 9th SDCE International Die Casting Exposition & Congress, Ed by Rick Jun. 6-7 1977, pp. 1-8.
Batten, Jr. J. Reed
Biddison Alan M.
Reynolds Metals Company
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