Process for manufacturing an elongated steel element to reinforce rubber products

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United States of America Patent

PATENT NO 10619271
APP PUB NO 20180230625A1
SERIAL NO

15952636

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Abstract

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A process for manufacturing an elongated steel element for reinforcing rubber products includes forming, on an elongated steel element, a coating of a ternary or quaternary alloy of copper-M-zinc, where M is one or two metals selected from cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum; drawing the elongated steel element in an aqueous lubricant containing a phosphorus compound and nitrate; and twisting two or more of the elongated steel elements into a steel cord. A copper content inside the coating is 58 to 75 wt %. A content of the one or two metals inside the coating is 0.5 to 10 wt %. A final reduction in a diameter of the elongated steel element occurs during the drawing step. The phosphorus compound is present on and/or in the coating in an amount of 0.3 to 1 mg/m2 of the coating, as measured via an Inductively Coupled Plasma technique.

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Patent Owner(s)

Patent OwnerAddress
NV BEKAERT SA8550 ZWEVEGEM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Buytaert, Guy Sint-Gillis-Waas, BE 4 10
Reis, Patricia Vespasiano, BR 5 92
Wemel, Dieter Ghent, BE 3 10

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