Ag-OXIDE ELECTRIC CONTACT MATERIAL, PRODUCING METHOD AND PRODUCING DEVICE THEREOF, BREAKER, AND ELECTROMAGNETIC CONTACTOR

Title:

Ag-OXIDE ELECTRIC CONTACT MATERIAL, PRODUCING METHOD AND PRODUCING DEVICE THEREOF, BREAKER, AND ELECTROMAGNETIC CONTACTOR

Document Type and Number:

Japanese Patent JP2016054139

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide an Ag-oxide electric contact material improved in dispersibility of easily oxidizable metal oxide in Ag by internal oxidation, and a producing method and producing device of the Ag-oxide electric contact material.SOLUTION: A producing method of an Ag-oxide electric contact material is performed by subjecting particles comprising an alloy containing Ag and easily oxidizable metal to internal oxidation using supercritical water or subcritical water in an oxygen atmosphere. An Ag-oxide electric contact material can be obtained by the producing method. A breaker and an electromagnetic contactor include the Ag-oxide electric contact material. A producing device of an Ag-oxide electric contact material includes : a water supply source 21 which supplies water to a reactor; an oxygen gas supply source 22 for supplying oxygen gas to the reactor; and a reaction furnace 20 accommodating particles comprising an alloy containing Ag and easily oxidizable metal, receiving water and oxygen gas from the water supply source 21 and the oxygen gas supply source 22, respectively, to form a supercritical state or subcritical state, and performing internal oxidation of particles comprising the alloy.SELECTED DRAWING: Figure 11

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Inventors:

CHIBAHARA HIROYUKI
ARAKI TAKESHI

Application Number:

JP2015049345A

Publication Date:

April 14, 2016

Filing Date:

March 12, 2015

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP

International Classes:

H01H11/04; B22F1/00; B22F9/08; C22C1/10; C22C5/06; H01H1/023; H01H1/0237

Domestic Patent References:

JPS55138046A	1980-10-28
JPS63149341A	1988-06-22
JPS61272338A	1986-12-02
JP2011129857A	2011-06-30
JPH0450105A	1992-02-19
JPS55138046A	1980-10-28
JPS63149341A	1988-06-22
JPS61272338A	1986-12-02
JP2011129857A	2011-06-30
JPH0450105A	1992-02-19

Attorney, Agent or Firm:

Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino

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