High-durable pneumatic radial tires

Details High-durable pneumatic radial tires High-durable pneumatic radial tires

1984-10-31

1986-12-16

Boland, Lois E.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152527, 152556, 148 12B, 148 121, 420 9, B60C 904, B60C 918

Patent

active

046289771

ABSTRACT:
A high-durable pneumatic radial tire is disclosed using steel cords in at least one of the carcass and the belt. This steel cord is produced by twisting plural steel filaments each having a tensile strength of not less than 220 kgf/mm.sup.2, whose metallic structure being a fine pearlite structure having an average value of interlamellar distance between cementites of 300-500 .ANG. and an average sectional area of single pearlite crystal grain in filament section of not more than 20 .mu.m.sup.2.

REFERENCES:
patent: 3507711 (1970-04-01), Fisher
patent: 3895972 (1975-07-01), Woodilla et al.
patent: 3953250 (1976-04-01), Golland et al.
patent: 4106957 (1978-08-01), Tournoy
patent: 4142919 (1979-03-01), Maiffredy et al.
patent: 4520857 (1985-06-01), Ogino et al.
294 Technische Mitteilungen Krupp. Forschungsbericht; Essen, Deutschland, vol. 39 (1981) Dec., No. 3, pp. 125-133.

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