Title:
NI-TI-BASED ALLOY MATERIAL AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JPH0297696
Kind Code:
A
Abstract:
PURPOSE:To produce the title alloy which is excellent in moldability and has corrosion resistance and organism adaptability by electrolytically treating Ni-Ti- based alloy consisting of specified composition in an inorganic acid aq. soln. contg. fluorine ion and Ni and electroplating Ni or Cu. CONSTITUTION:Composition of alloy is constituted of 52-58wt.% Ni and the balance Ti or one part of Ni and Ti is substituted by one or more kinds selected from among Fe, Co, Mn, V, Zr, Al, Cu, Mo, Pd and B. This alloy is electrolytically treated in the aq. soln. of inorganic acid or inorganic mixed acid contg. fluoride ion such as hydrofluoric acid and Ni while utilizing AC or AC-DC superimposed current. Ni or Cu is electroplated at 5-20mum thickness on the surface of alloy by this treatment. Further Au or noble metal is electroplated at 1-5mum thickness. Thereby wire drawability of Ni-Ti-based alloy is improved and both depth in luster and a high grade sensation are obtained.
Inventors:
HAMADA KAZUICHI
YAMADA MASAO
YAMADA MASAO
Application Number:
JP25021788A
Publication Date:
April 10, 1990
Filing Date:
October 04, 1988
Export Citation:
Assignee:
SHINKO WIRE CO LTD
International Classes:
C25D3/12; C22C19/03; C25D3/38; C25D3/48; C25D7/00; (IPC1-7): C22C19/03; C25D3/12; C25D3/38; C25D3/48; C25D7/00
Domestic Patent References:
| JPS63121629A | 1988-05-25 |
Attorney, Agent or Firm:
Kanemaru Shoichi
Next Patent: JPH0297697