Process for the production of a porous pressed part

Details Process for the production of a porous pressed part Process for the production of a porous pressed part

1987-01-09

1988-08-30

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

313346DC, 419 2, 419 8, H01J 904

Patent

active

047673729

ABSTRACT:
To improve the homogeneity of the porosity of a concave-convex pressed part with minimized mass, a pre-compressed pressed part with plane frontal surfaces is produced in a first process step. This part is then further compressed to produce a concave-convex sintered pressed part in a further process step. The pressed part can, however, also be produced in only one process step, if the requirements for homogeneous porosity distribution are less.

REFERENCES:
patent: 2747231 (1956-05-01), Reinhardt
patent: 3842309 (1974-10-01), Van Stratum et al.
patent: 4310775 (1982-01-01), Heynisch
patent: 4478590 (1984-10-01), Rychlewski

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