JPS57144105A - Pneumatic tire with improved steel cord - Google Patents

Pneumatic tire with improved steel cord

Info

Publication number
JPS57144105A
JPS57144105A JP56026975A JP2697581A JPS57144105A JP S57144105 A JPS57144105 A JP S57144105A JP 56026975 A JP56026975 A JP 56026975A JP 2697581 A JP2697581 A JP 2697581A JP S57144105 A JPS57144105 A JP S57144105A
Authority
JP
Japan
Prior art keywords
steel cord
tire
pneumatic tire
diffuse
cord
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56026975A
Other languages
Japanese (ja)
Other versions
JPH0344923B2 (en
Inventor
Munehisa Shimotake
Tamio Araki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP56026975A priority Critical patent/JPS57144105A/en
Publication of JPS57144105A publication Critical patent/JPS57144105A/en
Publication of JPH0344923B2 publication Critical patent/JPH0344923B2/ja
Granted legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0666—Reinforcing cords for rubber or plastic articles the wires being characterised by an anti-corrosive or adhesion promoting coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3025—Steel
    • D07B2205/3046—Steel characterised by the carbon content
    • D07B2205/3053—Steel characterised by the carbon content having a medium carbon content, e.g. greater than 0,5 percent and lower than 0.8 percent respectively HT wires

Abstract

PURPOSE:To heighten the corrosion resistance of a steel cord and the durability of a pneumatic tire, by causing nitrogen to diffuse into the surface of the steel cord and by using the steel cord to reinforce the carcass and reinforcing belt layer of the tire. CONSTITUTION:At least one of the carcass and belt layer of a pneumatic tire is reinforced by a steel cord whose surface if treated by causing nitrogen to diffuse into the surface. The carbon content of the steel cord is 0.65 to 0.85% by weight. the quantity of the nitrogen caused to diffuse into the surface of the cord is 1.0 to 2.5% by weight, on the average, to the depth of 0.5mu from the surface. As a result, the performance of the tire is prevented from deteriorating and the corrosion fatigue resistance of the steel cord and the durability of the tire are much heightened.
JP56026975A 1981-02-27 1981-02-27 Pneumatic tire with improved steel cord Granted JPS57144105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026975A JPS57144105A (en) 1981-02-27 1981-02-27 Pneumatic tire with improved steel cord

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026975A JPS57144105A (en) 1981-02-27 1981-02-27 Pneumatic tire with improved steel cord

Publications (2)

Publication Number Publication Date
JPS57144105A true JPS57144105A (en) 1982-09-06
JPH0344923B2 JPH0344923B2 (en) 1991-07-09

Family

ID=12208154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026975A Granted JPS57144105A (en) 1981-02-27 1981-02-27 Pneumatic tire with improved steel cord

Country Status (1)

Country Link
JP (1) JPS57144105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236029A (en) * 1989-09-22 1993-08-17 Bridgestone Corporation Heavy duty pneumatic radial tires with fatigue resistant steel carcass cords

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312759A (en) * 1976-07-22 1978-02-04 Nippon Telegraph & Telephone Method of fabricating dot printer wire
JPS5423758A (en) * 1977-07-19 1979-02-22 Kanai Hiroyuki Steel cord for reinforcing rubber
JPS5615488A (en) * 1979-07-19 1981-02-14 Bridgestone Tire Co Ltd Production of steel cord with excellent antiifatigue and corrosion resistant property

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312759A (en) * 1976-07-22 1978-02-04 Nippon Telegraph & Telephone Method of fabricating dot printer wire
JPS5423758A (en) * 1977-07-19 1979-02-22 Kanai Hiroyuki Steel cord for reinforcing rubber
JPS5615488A (en) * 1979-07-19 1981-02-14 Bridgestone Tire Co Ltd Production of steel cord with excellent antiifatigue and corrosion resistant property

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236029A (en) * 1989-09-22 1993-08-17 Bridgestone Corporation Heavy duty pneumatic radial tires with fatigue resistant steel carcass cords

Also Published As

Publication number Publication date
JPH0344923B2 (en) 1991-07-09

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