Brass-plated steel wire for reinforcing rubber articles and method for manufacturing the same
AssigneeBridgestone Corporation
InventorsShinichi Musha, Kiyotaka Sueyoshi
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Abstract
A brass-plated steel wire for reinforcing rubber articles capable of surely improving adhesiveness between brass-plated steel wire and rubber and a method for manufacturing the same.
Claims12
A brass-plated steel wire for reinforcing rubber articles, comprising a steel wire having a brass-plating layer, wherein the brass-plating layer comprises a laminated structure portion formed by laminating a first portion on the surface side, which is formed by performing a heavy-working on an extreme surface only of the brass-plating layer of the steel wire having a crystalline brass plating, and a crystalline portion on the inner side, wherein the first portion is formed of crystal grains having a grain size of 20 nm or less or is a portion which is substantially amorphous with a feature of undistinguishable crystal grains and the crystalline portion is formed of crystal grains having a grain size of more than 20 nm.
A brass-plated steel wire for reinforcing rubber articles, comprising a steel wire having a brass-plating layer, wherein the brass-plating layer comprises a laminated structure portion formed by laminating a first portion on the surface side, which is formed by forming an amorphous brass-plated layer on a surface of the brass-plating layer of the steel wire having a crystalline brass plating, and a crystalline portion on the inner side, wherein the first portion is formed of crystal grains having a grain size of 20 nm or less or is a portion which is substantially amorphous with a feature of undistinguishable crystal grains and the crystalline portion is formed of crystal grains having a grain size of more than 20 nm.
Dependencies are inferred from the claim text.