EP 0339728 B1 19971015 - Process for manufacturing diaphragms
Title (en)
Process for manufacturing diaphragms
Title (de)
Verfahren zur Herstellung von Diaphragmen
Title (fr)
Procédé de fabrication de diaphragmes
Publication
Application
Priority
DE 3813743 A 19880423
Abstract (en)
[origin: US4961901A] 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 DEG to 1500 DEG 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.
IPC 1-7
IPC 8 full level
C25B 13/02 (2006.01); B22F 3/11 (2006.01); B22F 3/18 (2006.01); B22F 7/00 (2006.01); C25B 13/04 (2006.01)
CPC (source: EP US)
B22F 3/1118 (2013.01 - EP US); B22F 3/18 (2013.01 - EP US); C25B 13/04 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE IT LI
DOCDB simple family (publication)
EP 0339728 A1 19891102; EP 0339728 B1 19971015; BR 8901906 A 19891128; CA 1319474 C 19930629; DE 3813743 A1 19891102; DE 58909821 D1 19971120; JP 2869487 B2 19990310; JP H01312097 A 19891215; NO 891630 D0 19890420; NO 891630 L 19891024; US 4961901 A 19901009; US 5114326 A 19920519; ZA 892958 B 19901228
DOCDB simple family (application)
EP 89201031 A 19890421; BR 8901906 A 19890421; CA 597373 A 19890421; DE 3813743 A 19880423; DE 58909821 T 19890421; JP 10438889 A 19890424; NO 891630 A 19890420; US 33974789 A 19890418; US 55464290 A 19900717; ZA 892958 A 19890421