Process and apparatus for rolling seamless tubes

Details Process and apparatus for rolling seamless tubes Process and apparatus for rolling seamless tubes

1975-01-15

1976-03-30

Mehr, Milton S.

Metal deforming

By use of roller or roller-like tool-element

With modification or control of temperature of work, tool or...

72208, B21B 2504

Patent

active

039465861

ABSTRACT:
In the rolling of seamless tubes using a mandrel which is inserted in a hollow bloom as it is advanced through a rolling mill, the cooling of the mandrel after the tube rolling stage is effected, for example by passing the mandrel through a cooling bath, as the mandrel is returned to a ready position upstream of the mill along a return path which is at one side of the rolling axis, so that while this mandrel is being cooled a further rolling operation can be carried out using another mandrel, the mandrels being moved in a closed cycle of successive rolling and cooling stages.

REFERENCES:
patent: 1936790 (1933-11-01), Heetkamp
patent: 2024514 (1935-12-01), Drescher
patent: 2356734 (1944-08-01), Bannister
patent: 3782160 (1974-01-01), Kheifets et al.

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