Press for hydrostatic extrusion of tubes and profiles

Details Press for hydrostatic extrusion of tubes and profiles Press for hydrostatic extrusion of tubes and profiles

1978-01-19

1980-02-05

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72 43, 260420, B21B 2210

Patent

active

041865820

ABSTRACT:
The pressure medium used in the pressure chamber of a hydrostatic press is degassified in a degassing tank prior to delivery to the pressure chamber so as to improve the resistance of the pressure cylinder, or the liner inside of the pressure cylinder, to fatigue. The degassified pressure medium can be a mixture of recirculated pressure medium recovered after passage through the die extrusion hole and new pressure medium, such as castor oil.

REFERENCES:
patent: 2401340 (1946-06-01), Dunmire
patent: 3580019 (1971-05-01), Beresener et al.
patent: 3926023 (1975-12-01), Hayaslie

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