EP 4374405 A1 20240529 - PRODUCTION PROCESS FOR A CONTACT ELEMENT FOR VACUUM SWITCHES, CONTACT ELEMENT AND VACUUM SWITCH
Title (en)
PRODUCTION PROCESS FOR A CONTACT ELEMENT FOR VACUUM SWITCHES, CONTACT ELEMENT AND VACUUM SWITCH
Title (de)
HERSTELLUNGSVERFAHREN FÜR EIN KONTAKTELEMENT FÜR VAKUUM-SCHALTER, KONTAKTELEMENT SOWIE VAKUUMSCHALTER
Title (fr)
PROCÉDÉ DE FABRICATION D'UN ÉLÉMENT DE CONTACT POUR INTERRUPTEUR À VIDE, ÉLÉMENT DE CONTACT ET INTERRUPTEUR À VIDE
Publication
Application
Priority
- DE 102021210641 A 20210923
- EP 2022075611 W 20220915
Abstract (en)
[origin: WO2023046562A1] The present invention relates to a process for producing a contact element (10, 20) for a vacuum switch (100). In this process, a first powder-like mixture (32), comprising particles of the first conductive material and particles of the second conductive material, or a first pre-pressed, disc-shaped green body consisting of a composite of at least the first conductive material and the second conductive material, is introduced into a pressing die (210, 240). An inner pressing stamp (220) is introduced into the die and a second powder (31, 31A) of the first conductive material or a second powder-like mixture comprising particles of the first conductive material or a second pre-pressed green body comprising the first conductive material is introduced into an intermediate space between the die and the inner pressing stamp. An outer pressing stamp (230) is introduced into the intermediate space between the die and the inner pressing stamp. Pressing pressure (A, B) is exerted on the outer and inner pressing stamps, in such a way that a disc-shaped region forming a contact disc (12, 22) of the contact element (10) is created from the first powder-like mixture (32) or the first green body, and a region forming a contact body (11, 21) or contact carrier of the contact element is created from the second powder (31, 31A) or the second powder-like mixture or the second green body.
IPC 8 full level
H01H 11/04 (2006.01)
CPC (source: EP US)
H01H 1/0203 (2013.01 - EP); H01H 11/048 (2013.01 - EP US); H01H 33/6646 (2013.01 - US); H01H 33/6642 (2013.01 - EP); H01H 33/6643 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021210641 A1 20230323; DE 102021210641 B4 20241002; CN 117999625 A 20240507; EP 4374405 A1 20240529; US 2024331960 A1 20241003; WO 2023046562 A1 20230330
DOCDB simple family (application)
DE 102021210641 A 20210923; CN 202280064466 A 20220915; EP 2022075611 W 20220915; EP 22786330 A 20220915; US 202218693024 A 20220915