Method of manufacturing rollers

Details Method of manufacturing rollers Method of manufacturing rollers

1979-05-24

1980-12-09

Larson, Lowell A.

Metal deforming

Process

With temperature maintenance or modification

72368, 148 115R, 148155, 59 8, B21B 3106

Patent

active

042377170

ABSTRACT:
Rollers are manufactured by winding a metallic band piece so that ends of the band piece butt against and are flush with one another, and heating and hardening the wound band piece. A striking load is applied during the heating step so that a gap which tends to form after winding between the ends of the band piece is closed. The application of the striking load may be performed by raising and dropping the wound band pieces. The latter may be done in a rotary furnace, or in a retort furnace with an inclined conveyor. Advantageously, the heating and hardening are performed after calibrating of the wound band pieces.

REFERENCES:
patent: 1387199 (1921-08-01), Small
patent: 1925055 (1933-08-01), Mize
patent: 3706199 (1972-12-01), Zimmer

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