PROCESS FOR PRODUCING A COPPER - CHROMIUM CONTACT ELEMENT FOR MEDIUM -VOLTAGE SWITCHGEAR ASSEMBLIES, AND CONTACT ELEMENT ITSELF

Title:

PROCESS FOR PRODUCING A COPPER - CHROMIUM CONTACT ELEMENT FOR MEDIUM -VOLTAGE SWITCHGEAR ASSEMBLIES, AND CONTACT ELEMENT ITSELF

Document Type and Number:

WIPO Patent Application WO/2010/057619

Kind Code:

A3

Abstract:

The invention relates to a process for producing a contact element for medium-voltage switchgear assemblies, and also to the contact element itself, in accordance with the preamble of claims 1 and 6. In order, in this case, to considerably lessen the abrasive effect which occurs during operation when the contact element is finished, and therefore to make the contact element more durable, the invention proposes that the chromium particles in the powder mixture are surface-rounded in advance. In this respect, see the figure.

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Inventors:

GENTSCH DIETMAR (DE)

Application Number:

PCT/EP2009/008194

Publication Date:

September 22, 2011

Filing Date:

November 18, 2009

Export Citation:

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Assignee:

ABB TECHNOLOGY AG (CH)
GENTSCH DIETMAR (DE)

International Classes:

B22F1/065; B22F1/17; C22C1/04; H01H33/66

Foreign References:

DD209317A1	1984-04-25
US3785801A	1974-01-15
US5689796A	1997-11-18

Attorney, Agent or Firm:

SCHMIDT, Karl-Michael (Oberhausener Strasse 33, Ratingen, DE)

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