Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1981-11-12
1984-07-31
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164116, B22D 100, B22D 1300
Patent
active
044624549
ABSTRACT:
Macrosegregation in metal alloy castings and other alloys having similar solidification behavior is reduced by slowly rotating a mold or the like containing the liquid alloy about an axis at an acute angle to the vertical from the time the liquid alloy is poured into the mold until substantially all of the alloy has solidified. The mold is rotated at a speed below that which produces a centrifuging effect or causes stirring or agitation of the interdendritic liquid.
REFERENCES:
patent: 976145 (1910-11-01), Brinell
patent: 1775859 (1930-09-01), Multgren
patent: 2193537 (1940-03-01), Nelson
patent: 3364978 (1968-01-01), Tanoue et al.
patent: 3568752 (1971-03-01), Williams
patent: 3614976 (1971-10-01), Bolling et al.
patent: 3844776 (1974-10-01), Bolling et al.
Interdendritic Fluid Flow and Macrosegregation; Influence of Gravity, "Metallurgical Transactions", Mehrabian et al., vol. 1, p. 1209, May 1970.
The Origin of Freckles in Unidirectionally Solidified Castings, "Metallurgical Transactions", Copley et al., vol. 1, p. 2193, Aug. 1970.
Macrosegregation in Casting Rotated and Oscillated During Solidification, "Metallurgical Transactions", Stewart et al., vol. 2, p. 169, Jan. 1971.
Fluid Motion Through the Partially Solid Regions of a Casting & Its Importance in Understanding A Type Seg., "Trans. of Met. AIME", McDonald et al., vol. 249, p. 1993, Sep. 1969.
Macrosegregation in Rotated Remelted Ingots, Kou et al., "Metallurgical Transactions", vol. 9B, Dec. 1978, pp. 711-719.
Johnson Jerold L.
Lin Kuang Y.
Michigan Technological University
LandOfFree
Method for reducing macrosegregation in alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for reducing macrosegregation in alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing macrosegregation in alloys will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-181057