BERYLLIUM COPPER ALLOY HAVING HIGH STRENGTH, MACHINABILITY AND HEAT RESISTANCE AND PRODUCTION METHOD THEREOF

Title:

BERYLLIUM COPPER ALLOY HAVING HIGH STRENGTH, MACHINABILITY AND HEAT RESISTANCE AND PRODUCTION METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/1995/018873

Kind Code:

A1

Abstract:

An alloy containing a relatively small amount of Be to decrease its deformation when heat-treated. The decrease in strength of the alloy due to the decreased Be content is compensated for by Si and Al solid solution hardening and NiBe and CoBe precipitation hardening. The precipitation of such intermetallic compounds also improves machinability and heat resistance and allows the aging conditions to be more flexible. Therefore, the present invention can economically provide a beryllium copper alloy having excellent strength, machinability and heat resistance and particularly, can drastically reduce a burden on the user side as to an aging material.

Inventors:

ISHIKAWA SHUHEI (JP)
HIRAMITSU HIROYUKI (JP)
ISHIGURO YOSHIHISA (JP)
YASHIRO KAZUMASA (JP)

Application Number:

PCT/JP1994/002253

Publication Date:

July 13, 1995

Filing Date:

December 27, 1994

Export Citation:

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Assignee:

NGK INSULATORS LTD (JP)
ISHIKAWA SHUHEI (JP)
HIRAMITSU HIROYUKI (JP)
ISHIGURO YOSHIHISA (JP)
YASHIRO KAZUMASA (JP)

International Classes:

C22C9/00; C22C9/01; C22C9/06; C22F1/08; (IPC1-7): C22C9/00; C22F1/08

Foreign References:

JPS63125648A	1988-05-28
JPH03294462A	1991-12-25
JPS62199742A	1987-09-03
JPS5959851A	1984-04-05
JPS5032019A	1975-03-28
JPS4747207B1

Other References: