Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1983-11-14
1985-10-15
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164421, B22D 1100
Patent
active
045468168
ABSTRACT:
The invention provides an apparatus and process to cast continuously high quality hollow round steel billets or tubes. The hollow round steel billets are produced by a compact, high production casting machine incorporating a rotating hypocycloidal mandrel for inside cooling and deformation of the solidified steel. The outside cooling is by traditional mold and spray cooling. The adjustable rolling movement of the mandrel controls the uniform heat extraction from the inner annulus as well as the deformation and deformation rate of the as-cast steel to increase the ductility. The inside of the hollow round billet so formed is substantially round and the inside surface is smooth to facilitate high quality and further processing to finished pipes in conventional high production machinery.
REFERENCES:
patent: 3268959 (1966-08-01), Babel et al.
patent: 3409068 (1968-11-01), Yearley et al.
patent: 3416591 (1968-12-01), Babel et al.
patent: 3593773 (1971-07-01), Vogt et al.
patent: 3638715 (1972-02-01), Simon
U.S. and Foreign Patent Abstracts, Berg-und Huttenmannische Monatshefte, pp. 318 and 319.
Stahl u. Eisen 86, (1966), pp. 345 and 346.
Fachbenchte Hottenpraxis Metallwerterverarbeitung, vol. 20, p. 829, 1982, Exhibit I, Exhibit II, Exhibit III.
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