Process and apparatus for manufacturing diaphragms

Details Process and apparatus for manufacturing diaphragms Process and apparatus for manufacturing diaphragms

1989-04-18

1990-10-09

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making porous product

419 3, 419 8, 419 19, 419 43, 419 57, 419 69, 419 45, B22F 500

Patent

active

049619012

ABSTRACT:
In a process of manufacturing diaphragms, a layer of a difficulty flowable metal powder is applied to a support, a wire net is rolled onto the powder layer and the latter is compacted at the same time and the metal powder is fired at 800.degree. to 1500.degree. C. in an oxidizing atmosphere. In order to impart to the diaphragms a constant thickness, strength and density, the metal powder is uniformly distributed and applied as regards its bulk volume to the support and the powder layer is moved under a distributing roller rotating opposite to the direction in which the powder is fed.

REFERENCES:
patent: 3403999 (1968-10-01), Bliss
patent: 4172111 (1979-10-01), Donnelly
patent: 4394244 (1983-07-01), Divisek et al.
patent: 4670214 (1987-06-01), Magnuson et al.

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