Process for producing pipe blooms

Details Process for producing pipe blooms Process for producing pipe blooms

1977-04-13

1978-05-30

Husar, Francis S.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

164 76, 164114, 164270, B22D 1310, B22D 4500

Patent

active

040915247

ABSTRACT:
A process is provided for producing long tubular blooms, generally having a length to diameter ratio in excess of 20:1 in which molten material is rapidly poured into a chill mould whose axis is transverse to the horizontal, sealing the mould and immediately tilting the mould to a generally horizontal axial position while rotating about its axis, inserting a mandrel axially of the viscous center axis of the material and processing the material around the mandrel to form a tube after which the mandrel is removed.

REFERENCES:
patent: 724270 (1903-03-01), Ehrhardt
patent: 866021 (1907-09-01), Hansen
patent: 1537041 (1925-05-01), Becker
patent: 3581384 (1971-06-01), Petersen et al.
patent: 3683999 (1972-08-01), Kocks

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