Provided are a rubber article reinforcing steel wire that is superior in bending fatigue properties to the related art and has a flat cross-sectional shape, and a rubber article using the wire. In a rubber article reinforcing steel wire 10, a major diameter and a minor diameter are substantially perpendicular to each other. Assuming that the major diameter is W, the minor diameter is T, a straight line that passes through a center of the major diameter in a width direction and is parallel to a minor diameter direction is L1, a straight line that passes through a center of the minor diameter in a width direction and is parallel to a major diameter direction is L2, an intersection point of the L1 and the L2 is a center point C, a region within a half of a distance from the center point C to a surface is a central region Rc, and a region outside the central region Rc is a surface layer region Rs, a Vickers hardness Hvc of the central region Rc is more than a Vickers hardness Hvs of the surface layer region Rs; and assuming that a Vickers hardness on the L1 in the surface layer region Rs is Hv1, and a Vickers hardness on the L2 in the surface layer region Rs is Hv2, relationships represented by Hvc - Hv1 ¤ 150, Hvc - Hv2 ¤ 150, Hv1/Hvc × 100 ¥ 85.11, and Hv2/Hvc × 100 ¥ 79.84 are satisfied.
RUBBER ARTICLE REINFORCING STEEL WIRE AND RUBBER ARTICLE USING SAME
GUMMIARTIKELVERSTÄRKUNGSSTAHLDRAHT UND GUMMIARTIKEL DAMIT
FIL D'ACIER DE RENFORCEMENT D'ARTICLE EN CAOUTCHOUC ET ARTICLE EN CAOUTCHOUC UTILISANT LEDIT FIL
2018-07-25
Patent
Electronic Resource
English
Rubber article reinforcing steel wire and rubber article using same
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