Title:
CU ALLOY FOR SPECTACLE FRAME
Document Type and Number:
Japanese Patent JPS5842739
Kind Code:
A
Abstract:
PURPOSE: To provide fine pinkish gold color tone, superior cold workability and softening resistance by using a Cu alloy contg. specified amounts of Ni, Sn, ≥1 kind among Mn, Fe and Co, and Ti and/or Si.
CONSTITUTION: The composition of a Cu alloy for the frame of a pair of spectacles is composed of, by weight, 8W22% Ni, 2W4% Sn, 0.1W1% ≥1 kind among Mn, Fe and Co, 0.1W1% Ti and/or Si, and the balance Cu with inevitable impurities. Ni and Sn are added to provide a fine pinkish gold color tone, and other metals are added to provide high strength and softening resistance.
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Inventors:
IWAMURA TAKUROU
KISHIDA KUNIO
TERAO TADAO
KISHIDA KUNIO
TERAO TADAO
Application Number:
JP14085081A
Publication Date:
March 12, 1983
Filing Date:
September 09, 1981
Export Citation:
Assignee:
MITSUBISHI METAL CORP
International Classes:
G02C5/00; C22C9/00; C22C9/06; (IPC1-7): C22C9/06
Attorney, Agent or Firm:
Kazuo Tomita