IMPROVEMENT OF FATIGUE RESISTANCE OF WIRE CORD

Title:

IMPROVEMENT OF FATIGUE RESISTANCE OF WIRE CORD

Document Type and Number:

Japanese Patent JPS6227520

Kind Code:

A

Abstract:

PURPOSE: To simply and easily enhance the quality of a wire cord by heat treating the wire cord at a specified temp. under proper tensile stress so as to improve the fatigue resistance.

CONSTITUTION: A wire cord passed through a stranding stage is heat treated at 150W350°C under tensile stress corresponding to 30W60% of the fracture stress or tensile stress which gives elongation strain corresponding to 1W8% of the fracture stress. The preferred heat treatment time is ≤ about 3sec. Thus, the fatigue resistance of the wire cord is considerably improved and a high quality wire cord is considerably improved and a high quality wire cord is obtd. simply and easily.

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Inventors:

SHINOHARA BONPEI
TAO KOZO
SUNAGA YUKIO
NAMIKAWA TERUO

Application Number:

JP16382685A

Publication Date:

February 05, 1987

Filing Date:

July 26, 1985

Export Citation:

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Assignee:

KAWATETSU KOSEN KOGYO KK

International Classes:

C21D8/06; (IPC1-7): C21D8/06

Attorney, Agent or Firm:

Akihide Sugimura (1 outside)

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