Oval steel cord with oval wires
AssigneeNV Bekaert SA
InventorsZhichao Cheng, Hongzhen Zhu, Hao Zhou, Huanjiong Pang, Junhua Kan
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Abstract
A steel cord used for reinforcing rubber product with an oval cross-section has a structure of m+n, while m is the number of core wires (26) and n is the number of the outer layer wires (22). The core wire (26) is untwisted while m is 1 or the core wires (26) are untwisted and aligned in parallel while m is between 2 and 4, and the outer layer wires (22) are twisted around said core wires (26). The core wires (26) are oval wires and the outer layer wires (22) are round wires. The wires (22, 26) in the steel cord have a carbon content not less than 0.60%.
Claims14
A steel cord having a carbon content above 0.60% for reinforcing rubber products, said steel cord with an oval cross-section having a structure of m+n, said m being the number of the core wires (26) and ranging from 1 to 4, said n being the number of the outer layer wires (22) and ranging from 4 to 15, wherein said core wire (26) is untwisted while m is 1 or said core wires (26) are untwisted and aligned in parallel while m is between 2 and 4, said outer layer wires (22) are twisted around said core wires (26), said core wires (26) has an oval cross-section, and said outer layer wires (22) have a round cross-section, said wires in said steel cord have carbon content not less than 0.60%.
Dependencies are inferred from the claim text.