Protective coating for removable liner of press for hydrostatic

Details Protective coating for removable liner of press for hydrostatic Protective coating for removable liner of press for hydrostatic

1977-04-18

1978-04-04

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72272, 92169, B21D 2210

Patent

active

040819841

ABSTRACT:
A press for the hydrostatic extrusion of metallic billets to form tubes and other profiles includes a hollow high pressure cylinder having a removable liner which forms the inner wall thereof and which encloses the internal pressure chamber. To protect the removable liner from fatigue breakdown, the inner wall of the liner is coated with a protective coating of an organic polymer and a metallic tube is located adjacent the protective coating and concentric therewith, between the protective coating and the internal pressure chamber.

REFERENCES:
patent: 3364717 (1968-01-01), Green
patent: 3751958 (1973-08-01), Nilsson et al.
patent: 3914968 (1975-10-01), Korsell
patent: 4016737 (1977-04-01), Gustafsson et al.

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