Electrolysis: processes – compositions used therein – and methods – Electrolytic erosion of a workpiece for shape or surface...
Patent
1995-06-07
1999-05-18
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Electrolytic erosion of a workpiece for shape or surface...
216100, C25F3/24
Patent
active
059048301
ABSTRACT:
A spring steel wire that has a tensile strength of at least 2,000 N/mm.sup.2 and a surface roughness of not more than 5 .mu.m in terms of Rz, and a spring steel wire that consists essentially of from 0.5 to 0.8% by weight of C, from 1.2 to 2.5% by weight of Si, from 0.4 to 0.8% by weight of Mn, from 0.7 to 1.0% by weight of Cr, from 0.005 to 0.030% by weight of N and at least two elements selected from the group consisting of from 0.1 to 0.6% by weight of V, from 0.05 to 0.50% by weight of Mo and from 0.05 to 0.50% by weight of W, with the balance being Fe and incidental impurities containing not more than 0.005% by weight of Al and not more than 0.005% by weight of Ti, said wire having a surface roughness of not more than 5 .mu.m in terms of Rz, as well as production processes therefor.
REFERENCES:
patent: 2725352 (1955-11-01), Strobel
patent: 2850448 (1958-09-01), Stricker
patent: 3457107 (1969-07-01), Mickelson et al.
patent: 3816273 (1974-06-01), Snyder
patent: 4233089 (1980-11-01), Lanner
patent: 4909866 (1990-03-01), Abe et al.
patent: 5066370 (1991-11-01), Andreshak et al.
Patent Abstracts of Japan, vol. 13, No. 61 (C-567)(3409) Feb. 10, 1989.
Patent Abstracts of Japan, vol. 12, No. 165 (C-496)(3012) May 18, 1988.
Murai Teruyuki
Yamao Norihito
Sumitomo Electric Industries Ltd.
Valentine Donald R.
LandOfFree
Process for finishing steelwire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for finishing steelwire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for finishing steelwire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1757895