Tube loading sleeve for pilger mill

Details Tube loading sleeve for pilger mill Tube loading sleeve for pilger mill

1992-02-18

1993-02-16

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

With tool inside hollow work

72370, B21B 2100, B21B 2500

Patent

active

051860350

ABSTRACT:
To minimize the incurrence of defects in the inner surface of a nuclear fuel cladding tube produced in a pilger mill from a Zircaloy tube, a loading sleeve is inserted onto the pilgering mandrel assembly in close fitting relation, and the Zircaloy tube is then inserted onto the sleeve in close fitting relation. The sleeve, formed of ABS plastic, is then withdrawn, leaving the Zircaloy tube loaded on the mandrel assembly preparatory to reducing the Zircaloy tube down to cladding tube dimensions in the pilger mill.

REFERENCES:
patent: 2365268 (1944-12-01), Herter, Jr.
patent: 3083494 (1963-04-01), Lindenbaum
patent: 3785418 (1974-01-01), Hennig et al.
patent: 4158407 (1979-06-01), Rest
patent: 4233834 (1980-11-01), Matinlassi
patent: 4930328 (1990-06-01), Duerring
patent: 4956988 (1990-09-01), Fischer et al.
patent: 5005755 (1991-04-01), Takahashi et al.

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