Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1982-07-30
1984-12-11
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164128, 164348, B22D 2704
Patent
active
044872470
ABSTRACT:
A thin walled chill mould is provided with several cooling chambers by which the intensity of cooling can be varied during casting. During pouring, cooling of the lowermost chamber is commenced first and with low intensity. As filling continues, cooling by the other cooling chambers is commenced successively and at increasing intensities. After filling is complete, cooling is continued at these different intensities until the mould has been closed and tilted to the horizontal. Thereafter cooling is continued at maximum intensity in all chambers while the mould is rotated about its longitudinal axis. The method and the chill mould are provided particularly for the manufacture of long, slender ingots, billets or the like, particularly for the manufacture of seamless tubes. Corresponding control of the cooling operation avoids fissures and facilitates ejection of the ingot from the chill mould. Moreover, the control of the cooling operation permits the formation of a uniform concentric cavity when manufacturing hollow ingots.
REFERENCES:
patent: 1895135 (1933-01-01), Rohn
patent: 2412601 (1946-12-01), Carrington
patent: 2884671 (1959-05-01), Walcher, Sr. et al.
patent: 3633656 (1972-01-01), Saunders
patent: 4162700 (1979-07-01), Kahn
Bindernagel Ali
Faste Heinrich
Kocks Technik GmbH & Co.
Lin Kuang Y.
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