Deformed wire for reinforcing marine optical fiber cable

Details Deformed wire for reinforcing marine optical fiber cable Deformed wire for reinforcing marine optical fiber cable

2008-07-22

2008-07-22

Yee, Deborah (Department: 1793)

Metal treatment

Stock

Ferrous

C148S334000, C148S909000, C148S330000, C385S108000

Reexamination Certificate

active

07402215

ABSTRACT:
Deformed wire for a submarine optical fiber cable used for the pressure-proof layer of the submarine optical cable and having a high strength, that is, having a tensile strength of 1800 MPa or more, is provided, which deformed wire for reinforcing submarine optical fiber cable is characterized by including, by wt %, C: more than 0.65% to 1.1%, Ceq=C+1/4Si+1/5Mn+4/13Cr satisfying 0.80%≦Ceq≦1.80%, having a number of shear bands cutting across an L-section center axial line of 20/mm per unit length of the center axis, having an angle formed by the center axis and shear bands in the range of 10 to 90°, having a tensile strength of 1800 MPa or more, having a sectional area forming an approximately fan shape, a plurality of the approximately fan shapes being combined to form a circular hollow cross-section for accommodating optical fibers, having at its surface a pebbled surface comprised of relief shapes of depths of 0.2 to 5 μm, and having a weld at least at one location in the longitudinal direction.

REFERENCES:
patent: 4889567 (1989-12-01), Fujiwara et al.
patent: 6527883 (2003-03-01), Kawabe et al.
patent: 62202051 (1987-09-01), None
patent: 7-65142 (1995-07-01), None
patent: 2742440 (1998-01-01), None
patent: 2001-271138 (2001-10-01), None
English abstract of Japanese patent 2004277759, Kuroda, Takeshi et al., Oct. 7, 2004.
English abstract of Japanese patent 402285026, Takahashi, Toshihiko et al., Nov. 22, 1990.

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