WO1985002210A1 - Steel cord - Google Patents
Steel cord Download PDFInfo
- Publication number
- WO1985002210A1 WO1985002210A1 PCT/JP1983/000410 JP8300410W WO8502210A1 WO 1985002210 A1 WO1985002210 A1 WO 1985002210A1 JP 8300410 W JP8300410 W JP 8300410W WO 8502210 A1 WO8502210 A1 WO 8502210A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel cord
- steel
- rubber
- cord
- strands
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 62
- 239000010959 steel Substances 0.000 title claims abstract description 62
- 229920001971 elastomer Polymers 0.000 claims abstract description 25
- 239000005060 rubber Substances 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 238000004073 vulcanization Methods 0.000 claims abstract 2
- 239000011162 core material Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- -1 for example Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000531908 Aramides Species 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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
- D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/48—Tyre cords
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
- D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
- D07B1/167—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay having a predetermined shape
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2053—Cores characterised by their structure being homogeneous
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2055—Cores characterised by their structure comprising filaments or fibers
Definitions
- the present invention relates to a steel cord for a tire, and particularly to a car for a tire.
- Used for tire reinforcement such as scum, pelt layers, and bead reinforcement layers
- Steel cord has strength, modulus, heat resistance and fatigue resistance
- the teal code (1) is configured. And the reinforcement is
- a steel cord is embedded in rubber, and this is vulcanized and bonded.
- the residual air inside the steel cord expands, causing local distortion.
- the present invention provides a method for connecting a steel cord to rubber without deteriorating the modulus and dimensional stability of the steel cord. It proposes a steel cord with improved adhesion and prevention of occurrence.
- the present invention relates to a non-metal inside a strand in which a plurality of steel strands are tightly stranded together and / or a cord in which the strands are closely stranded together.
- the steel cord or the strand is filled with pit metal, so that air remains. No steel protection and improved adhesion between steel cord and rubber.
- FIGS. 3 and 4 are cross-sectional views of the steel cord of the present invention
- FIG. 5 is a test piece for measuring the air permeability of the cord
- FIG. Fig. 6 is a schematic diagram of the measurement method
- Fig. 7 is a graph showing the relationship between cord stress and elongation.
- the steel cord (10) has five steel strands (11) (12) (13) (14) (15) ).
- the steel strands are in close contact with each other, forming a lumen (16) which is almost closed from the outside, and this lumen is filled with a non-metallic core material.
- a non-metallic core material Rubber, plastic, organic fiber, etc. are used.
- rubber includes natural rubber, polysoprene rubber, styrene-butadiene copolymer, butyl rubber, ethylene-propylene rubber, chloroprene rubber, butadiene rubber, and the like.
- Propylene, vinyl chloride, etc., and organic fibers such as nylon, polyester, rayon, and aramide.
- a material that melts in the temperature range of 100 T: to 180 T of these core materials for example, polyethylene or polypropylene
- the steel cord is vulcanized in the embedded rubber. In the process of bonding, the material melts and penetrates the entire inner space of the steel cord to prevent air from remaining.
- the melting points of organic fibers are as shown in Table 1.
- organic fibers When organic fibers are used for the S material, it is difficult to completely fill the entire lumen because the melting points of many materials are 180 t: or more. Therefore, it is preferable to coat the surface of the organic fiber with rubber, rubber paste or plastic having high fluidity under heating.
- organic fibers are generally hygroscopic, and this moisture diffuses into the steel cord, causing the steel cord to ripen. Therefore, it is desirable that the moisture content (JISL-107) of the organic fiber cord be 0.2% or less.
- the steel cord (10) of the invention has the closest packing of the steel elements (1 1), (1 2), (1 3), (1 4), and (15). And the elongation in the longitudinal direction is extremely small. So this When steel cord is used as a reinforcing material for a tire, a tire having excellent dimensional stability and excellent uniformity can be obtained without the cord being stretched in the tire manufacturing process. Table 1
- FIG. 4 shows a sectional view of another embodiment of the steel cord of the present invention.
- the steel cord (17) is composed of six strands (19) consisting of three steel wires (18).
- the steel cord of the present invention usually has a twist pitch of 3 to 3.
- the code of the present invention has a
- Table 3 shows the measurement results of the transmission amount. In addition, each steel coat
- FIG. 7 shows the relationship between stress and elongation of the alloy.
- the average value obtained by dividing the length of ⁇ ⁇ generated along the steel cord centering on the drill hole by the total length of the cord is defined as the steel code occurrence rate.
- a steel cord ply is cut out from the belt layer or the case of the prototype tire and molded and vulcanized into a test piece (28) having the shape shown in Fig. 5.
- 26 is a vulcanized rubber plate and (27) is a steel cord ply. Therefore, the test piece (28) was inserted into the air injection hole (29) and the exhaust hole as shown in Fig. 6.
- the volume of air coming out per minute was measured.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Ropes Or Cables (AREA)
- Tires In General (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1983/000410 WO1985002210A1 (en) | 1983-11-14 | 1983-11-14 | Steel cord |
| JP83503570A JPS6127519B1 (enrdf_load_stackoverflow) | 1983-11-14 | 1983-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1983/000410 WO1985002210A1 (en) | 1983-11-14 | 1983-11-14 | Steel cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1985002210A1 true WO1985002210A1 (en) | 1985-05-23 |
Family
ID=13790096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1983/000410 WO1985002210A1 (en) | 1983-11-14 | 1983-11-14 | Steel cord |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6127519B1 (enrdf_load_stackoverflow) |
| WO (1) | WO1985002210A1 (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293263A1 (en) * | 1987-05-28 | 1988-11-30 | The Yokohama Rubber Co., Ltd. | Rubber-reinforcing cords and radial-ply tires using the same |
| EP0376272A1 (en) * | 1988-12-27 | 1990-07-04 | Sumitomo Electric Industries, Ltd. | Steel composite cord |
| JPH08170284A (ja) * | 1994-12-14 | 1996-07-02 | Tokyo Seiko Co Ltd | スチールコード、その製造方法及びスチールラジアルタイヤ |
| US6755226B2 (en) * | 2000-02-01 | 2004-06-29 | Sumitomo Rubber Industries, Ltd. | Composite cord and pneumatic tire using the composite cord |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61176428A (ja) * | 1985-01-31 | 1986-08-08 | Nissan Shatai Co Ltd | プレス工法及びその装置 |
| WO2017222046A1 (ja) * | 2016-06-24 | 2017-12-28 | 株式会社ブリヂストン | タイヤの製造方法 |
| WO2018199122A1 (ja) | 2017-04-27 | 2018-11-01 | 株式会社ブリヂストン | エラストマー補強用コード |
| WO2019124559A1 (ja) * | 2017-12-22 | 2019-06-27 | 株式会社ブリヂストン | エラストマー補強用コード |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2274277A (en) * | 1976-05-25 | 1978-08-03 | Saiag S.P.A. Industria Articoli Gomma | Reinforced conveyor belt |
| JPS56128384A (en) * | 1980-03-07 | 1981-10-07 | Yokohama Rubber Co Ltd | Steel cord |
-
1983
- 1983-11-14 WO PCT/JP1983/000410 patent/WO1985002210A1/ja unknown
- 1983-11-14 JP JP83503570A patent/JPS6127519B1/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2274277A (en) * | 1976-05-25 | 1978-08-03 | Saiag S.P.A. Industria Articoli Gomma | Reinforced conveyor belt |
| GB1520955A (en) * | 1976-05-25 | 1978-08-09 | Saiag Spa | Steel cable particularly for reinforcement of articles of rubber |
| JPS56128384A (en) * | 1980-03-07 | 1981-10-07 | Yokohama Rubber Co Ltd | Steel cord |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293263A1 (en) * | 1987-05-28 | 1988-11-30 | The Yokohama Rubber Co., Ltd. | Rubber-reinforcing cords and radial-ply tires using the same |
| EP0376272A1 (en) * | 1988-12-27 | 1990-07-04 | Sumitomo Electric Industries, Ltd. | Steel composite cord |
| JPH08170284A (ja) * | 1994-12-14 | 1996-07-02 | Tokyo Seiko Co Ltd | スチールコード、その製造方法及びスチールラジアルタイヤ |
| US6755226B2 (en) * | 2000-02-01 | 2004-06-29 | Sumitomo Rubber Industries, Ltd. | Composite cord and pneumatic tire using the composite cord |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6127519B1 (enrdf_load_stackoverflow) | 1986-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Designated state(s): AU JP US |
|
| AL | Designated countries for regional patents |
Designated state(s): DE FR GB |