CN103485216A - Three-layer steel cord with 4+10+16 structure - Google Patents
Three-layer steel cord with 4+10+16 structure Download PDFInfo
- Publication number
- CN103485216A CN103485216A CN201310387429.6A CN201310387429A CN103485216A CN 103485216 A CN103485216 A CN 103485216A CN 201310387429 A CN201310387429 A CN 201310387429A CN 103485216 A CN103485216 A CN 103485216A
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- China
- Prior art keywords
- central core
- intermediate layer
- steel cord
- lay pitch
- diameter
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- 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
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
- D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
-
- 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
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
- D07B2201/2029—Open winding
- D07B2201/2031—Different twist pitch
- D07B2201/2032—Different twist pitch compared with the core
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- Ropes Or Cables (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a three-layer steel cord with a 4+10+16 structure. The steel cord comprises a center layer, a middle layer and an outer layer; the center layer is formed by four threads spirally assembled with the lay length of p1 and having the diameter of d1; in the middle layer, ten threads with the diameter of d2 are spirally coiled around the center layer with the lay length of p2; in the outer layer, sixteen threads with the diameter of d3 are spirally coiled around the middle layer with the lay length of p3. The three-layer steel cord with the 4+10+16 structure is integral in structure, stable in performance, high in strength, strong in loading capacity, good in anti-corrosion performance and high in safety performance.
Description
Technical field
The steel cord that the present invention relates to use in pneumatic tire, relate in particular to the intensive steel cord used in a kind of large-scale load vehicle tyre.
Background technology
The selection of all-steel load-bearing radial tire body cord, except considering carcass strength, also will be considered that sidewall is born repeatedly to subdue distortion.Therefore, body cord should have higher Fracture Force, fatigue performance and anti-wear performance.Steel cord general inclined to one side use in the all-steel load-bearing radial tire carcass of 3+9+15 * 0.175+0.15 structure at present, along with social progress, large-scale load-carrying vehicle arises at the historic moment, require the radial heavy duty tire carcass to there is corresponding bearing capacity, this is to having higher requirement with the production of steel cord as carcass in pneumatic tire, China Intellectual Property Office discloses CN201080029415.1 metal cords with 2+M+N structure three layers (C1+C2+C3), it carries out the original place rubber processing, and comprise ground floor or central core (C1), the second layer (C2) and the 3rd layer (C3), described ground floor or central core (C1) form by take the two rhizoid lines that the diameter of lay pitch p1 helical assembly is d1, the M rhizoid line that diameter in the described second layer (C2) is d2 is wound in a spiral in described central core (C1) on every side with lay pitch p2, the N rhizoid line that diameter in described the 3rd layer (C3) is d3 is wound in a spiral in lay pitch p3 around the described second layer, described cord is characterised in that, it has following characteristic (d1, d2, d3, p1, p2 and p3 mean with mm): 0.08≤d1≤0.50, 0.08≤d2≤0.50, 0.08≤d3≤0.50, 3<p1<50, 6<p2<50, 9<p3<50, on the cord of any 3cm length, the rubber compound that is called " filled rubber " is present on the one hand and is limited by 2 rhizoid lines of described ground floor (C1) and the M rhizoid line of the described second layer (C2), on the other hand in each capillary that the N rhizoid line of the M rhizoid line of the described second layer (C2) and described the 3rd layer (C3) limits, in described cord the content of filled rubber between 10 and 50mg/ gram cord between.As everyone knows, when tire is advanced, the cord of layering stands heavily stressed, particularly stand bending repeatedly or the variation of curvature, this produces friction on silk thread, particularly come from the friction of the contact between adjacent layer, and therefore through frayed and tired, so the cord of these layerings must have the high patience to so-called " fretting fatigue ".The cord of layering also will be as much as possible with rubber impregnated they so that this material penetrate into fully during institute between the silk thread that forms cord has living space.In fact, if described infiltration is insufficient, empty passage forms along cord, and for example due to otch, along these, empty passage moves into the carcass of tire to the corrosive agent (as water or even airborne oxygen) that easily permeates tire.Than using in dry atmosphere, the existence of moisture causes the acceleration of corrosion, " corrosion fatigue " phenomenon occurs, and fatigue phenomenon causes the degeneration gradually of the engineering properties of cord, and can under the most harsh driving conditions, affect the life-span of these cords, thereby reduce the service life of tire.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of high-performance, corrosion resistance and good, lifting capacity strong, the compound steel cord with 4+10+16 structure that security performance is high.
The present invention is achieved by the following technical solution:
Compound steel cord with 4+10+16 structure, comprise central core, intermediate layer and skin, described central core forms by take the four rhizoid lines that the diameter of lay pitch p1 helical assembly is d1, the ten rhizoid lines that diameter is d2 in intermediate layer are wound in a spiral in around described central core with lay pitch p2, and ten six roots of sensation silk threads that diameter is d3 in described skin are wound in a spiral in around described intermediate layer with lay pitch p3.
The lay pitch p2 in the lay pitch p1 of described central core<intermediate layer<outer field lay pitch p3.
The diameter d 3=0.175mm of the outer silk thread of the diameter d 2=of the diameter d 1=intermediate layer silk thread of described central core silk thread.
The sth. made by twisting in described central core and intermediate layer, to identical, is twisted with the fingers to twisting with the fingers for S; Described outer field sth. made by twisting, to contrary with intermediate layer, is twisted with the fingers to twisting with the fingers for Z.
The section of described central core four rhizoid lines is diamond structure.
The lay pitch p1 of described central core is 5.0 ± 0.25mm, and the lay pitch p2 in intermediate layer is 10.0 ± 0.50mm, and outer field lay pitch p3 is 16.0 ± 0.80mm.
The present invention compared with prior art has following beneficial effect:
1, by keeping or improve the mechanical property of silk thread, reduce the silk thread consumption, thereby reduce tire weight, reduce production costs;
2, by changing the structure of steel cord, form the compound steel cord of 4+10+16 structure, the two-layer sth. made by twisting in central core and intermediate layer is to identical, improved fatigue performance, outer field sth. made by twisting, to contrary with intermediate layer, forms certain gap, improved the strike-through performance, corrosion resistance is strong, the structural integrity of steel cord, stable performance; Used high-tensile steel wires, intensity is high, and load-carrying is strong by ability, and security performance is high.
3, without outer winding structure, the adhesiving force destruction that can avoid outer wrapping wire to cause the wearing and tearing of cover wire without outer wrapping wire.
4, the steel cord diameter is less, can realize the increase of cord density, improves ABRASION RESISTANCE and the paracentesis resistance of tire.
The accompanying drawing explanation
The section structure schematic diagram that Fig. 1 is the embodiment of the present invention.
Sequence number in figure: 1, central core, 2, intermediate layer, 3, skin.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Shown in Figure 1, a kind of compound steel cord with 4+10+16 structure of the present invention, compile sth. made by twisting by 30 rhizoid lines and form, and the cross section of silk thread is circular; Comprise central core 1, intermediate layer 2 and outer 3, described central core 1 is twisted with the fingers the four rhizoid lines that are 0.175mm to S sth.s made by twisting, lay pitch 5.08mm, diameter and is compiled sth. made by twisting and form by take, and the section of described central core 1 four rhizoid lines is diamond structure; The ten rhizoid lines that diameter is 0.175mm in intermediate layer 2 with twist with the fingers to S twist with the fingers, around the mode of lay pitch 10.26mm is wound in a spiral in central core 1; Ten six roots of sensation silk threads that diameter is 0.175mm in described outer 3 with twist with the fingers to Z twist with the fingers, the mode of lay pitch 16.06mm is wound in a spiral in around intermediate layer 2, the section of these steel cord 30 rhizoid lines is circular configuration, cord diameter 1.13mm, Fracture Force 2040N.
The comparison of the present invention and 3+9+15 * 0.175+0.15 cord structure:
Fracture Force of the present invention, than 3+9+15 * high 200N of 0.175+0.15 cord, makes the anti-fatigue performance of tire and wear resistance that raising greatly, the service life of the tire of raising arranged.
Embodiment is just for the ease of understanding technical scheme of the present invention; do not form limiting the scope of the invention; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present invention, above scheme being done that does not break away from technical solution of the present invention, within all still belonging to protection domain of the present invention.
Claims (10)
1. the compound steel cord that there is the 4+10+16 structure, comprise central core (1), intermediate layer (2) with skin (3), it is characterized in that: (1) described central core forms by take the four rhizoid lines that the diameter of lay pitch p1 helical assembly is d1, intermediate layer (2) in the diameter ten rhizoid lines that are d2 with lay pitch p2, be wound in a spiral in described central core (1) around, described skin (3) in diameter ten six roots of sensation silk threads that are d3 with lay pitch p3, be wound in a spiral in described intermediate layer (2) around.
2. the compound steel cord with 4+10+16 structure according to claim 1 is characterized in that: lay pitch p2 (2) of lay pitch p1 (1) of described central core<intermediate layer<skin lay pitch p3 (3).
3. the compound steel cord with 4+10+16 structure according to claim 1 and 2 is characterized in that: described central core is the (2) (3) diameter d 3=0.175mm of silk thread of diameter d 2=skin of silk thread of diameter d 1=intermediate layer of silk thread (1).
4. the compound steel cord with 4+10+16 structure according to claim 1 and 2 is characterized in that: described central core (1) with intermediate layer sth. made by twisting (2) to identical, twist with the fingers to being the S sth. made by twisting; Described skin sth. made by twisting (3), to (2) contrary with intermediate layer, is twisted with the fingers to twisting with the fingers for Z.
5. the compound steel cord with 4+10+16 structure according to claim 3 is characterized in that: described central core (1) with intermediate layer sth. made by twisting (2) to identical, twist with the fingers to being the S sth. made by twisting; Described skin sth. made by twisting (3), to (2) contrary with intermediate layer, is twisted with the fingers to twisting with the fingers for Z.
6. according to claim 1, the 2 or 5 described compound steel cords with 4+10+16 structure, it is characterized in that: the described central core (1) section of four rhizoid lines is diamond structure.
7. the compound steel cord with 4+10+16 structure according to claim 3, it is characterized in that: the described central core (1) section of four rhizoid lines is diamond structure.
8. the compound steel cord with 4+10+16 structure according to claim 4, it is characterized in that: the described central core (1) section of four rhizoid lines is diamond structure.
9. according to claim 1,2,5, the 7 or 8 described compound steel cords with 4+10+16 structure, it is characterized in that: described central core lay pitch p1 (1) is 5.0 ± 0.25mm, intermediate layer lay pitch p2 (2) is 10.0 ± 0.50mm, and outer lay pitch p3 (3) is 16.0 ± 0.80mm.
10. the compound steel cord with 4+10+16 structure according to claim 6, it is characterized in that: described central core lay pitch p1 (1) is 5.0 ± 0.25mm, and intermediate layer lay pitch p2 (2) is 10.0 ± 0.50mm, and outer lay pitch p3 (3) is 16.0 ± 0.80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310387429.6A CN103485216B (en) | 2013-08-30 | 2013-08-30 | There is the compound steel cord of 4+10+16 structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310387429.6A CN103485216B (en) | 2013-08-30 | 2013-08-30 | There is the compound steel cord of 4+10+16 structure |
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| Publication Number | Publication Date |
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| CN103485216A true CN103485216A (en) | 2014-01-01 |
| CN103485216B CN103485216B (en) | 2016-10-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190540A (en) * | 2017-06-21 | 2017-09-22 | 盛利维尔（中国）新材料技术股份有限公司 | A kind of load-carrying tire carcass steel cord with 2+6+12 structures |
| CN107268309A (en) * | 2017-06-21 | 2017-10-20 | 盛利维尔（中国）新材料技术股份有限公司 | A kind of load-carrying tire carcass steel cord with 2+7+13 structures |
| WO2020113605A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏兴达钢帘线股份有限公司 | High-rubber penetration steel cord having 2+2+8×n structure |
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| US4756151A (en) * | 1986-09-15 | 1988-07-12 | Compagnie Generale Des Etablissements Michelin | Assembly of reinforcement cords for plastic and/or rubber materials having a core and article reinforced thereby |
| JPH06239430A (en) * | 1993-02-16 | 1994-08-30 | Yokohama Rubber Co Ltd:The | Steel cord reinforced rubber belt |
| CN2736405Y (en) * | 2004-08-09 | 2005-10-26 | 刘锦兰 | Twenty-four-strand high-strength steel cord with outer-wrapping steel wire |
| CN2736406Y (en) * | 2004-08-09 | 2005-10-26 | 刘锦兰 | Twenty-four-strand steel cord with outer-wrapping steel wire |
| CN2747258Y (en) * | 2004-08-09 | 2005-12-21 | 江苏兴达钢帘线股份有限公司 | Steel cord yarn |
| CN2755154Y (en) * | 2004-08-09 | 2006-02-01 | 江苏兴达钢帘线股份有限公司 | Steel curtain wire |
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| CN201037215Y (en) * | 2007-09-06 | 2008-03-19 | 江苏兴达钢帘线股份有限公司 | Steel cord for engineering tyre |
| JP2008255497A (en) * | 2007-03-30 | 2008-10-23 | Tokusen Kogyo Co Ltd | Steel cord for reinforcing rubber product and method for producing the same |
| CN101311409A (en) * | 2006-05-25 | 2008-11-26 | 东京制纲株式会社 | Method for producing steel cord, and steel cord |
| CN102203341A (en) * | 2008-11-17 | 2011-09-28 | 米其林技术公司 | Three-layer cord, rubberized in situ, for a tyre carcass reinforcement |
| CN102449230A (en) * | 2009-06-03 | 2012-05-09 | 米其林技术公司 | Cable with three layers, rubberised on site, for the framework of a tyre carcass |
| CN102472000A (en) * | 2009-07-03 | 2012-05-23 | 米其林技术公司 | Three-layer steel cord that is rubberized in situ and has a 3+m+n structure |
| CN203034291U (en) * | 2012-11-28 | 2013-07-03 | 江苏兴达钢帘线股份有限公司 | Steel cord for engineering tyre |
| CN203462349U (en) * | 2013-08-30 | 2014-03-05 | 江苏兴达钢帘线股份有限公司 | Three-layer steel cord with four-ten-sixteen combination structure |
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2013
- 2013-08-30 CN CN201310387429.6A patent/CN103485216B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4756151A (en) * | 1986-09-15 | 1988-07-12 | Compagnie Generale Des Etablissements Michelin | Assembly of reinforcement cords for plastic and/or rubber materials having a core and article reinforced thereby |
| JPH06239430A (en) * | 1993-02-16 | 1994-08-30 | Yokohama Rubber Co Ltd:The | Steel cord reinforced rubber belt |
| CN2736405Y (en) * | 2004-08-09 | 2005-10-26 | 刘锦兰 | Twenty-four-strand high-strength steel cord with outer-wrapping steel wire |
| CN2736406Y (en) * | 2004-08-09 | 2005-10-26 | 刘锦兰 | Twenty-four-strand steel cord with outer-wrapping steel wire |
| CN2747258Y (en) * | 2004-08-09 | 2005-12-21 | 江苏兴达钢帘线股份有限公司 | Steel cord yarn |
| CN2755154Y (en) * | 2004-08-09 | 2006-02-01 | 江苏兴达钢帘线股份有限公司 | Steel curtain wire |
| CN2830471Y (en) * | 2005-10-26 | 2006-10-25 | 江苏兴达钢帘线股份有限公司 | High strength 21-ply steel cord with externally wound wire |
| CN101311409A (en) * | 2006-05-25 | 2008-11-26 | 东京制纲株式会社 | Method for producing steel cord, and steel cord |
| JP2008255497A (en) * | 2007-03-30 | 2008-10-23 | Tokusen Kogyo Co Ltd | Steel cord for reinforcing rubber product and method for producing the same |
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| CN102203341A (en) * | 2008-11-17 | 2011-09-28 | 米其林技术公司 | Three-layer cord, rubberized in situ, for a tyre carcass reinforcement |
| CN102449230A (en) * | 2009-06-03 | 2012-05-09 | 米其林技术公司 | Cable with three layers, rubberised on site, for the framework of a tyre carcass |
| CN102472000A (en) * | 2009-07-03 | 2012-05-23 | 米其林技术公司 | Three-layer steel cord that is rubberized in situ and has a 3+m+n structure |
| CN203034291U (en) * | 2012-11-28 | 2013-07-03 | 江苏兴达钢帘线股份有限公司 | Steel cord for engineering tyre |
| CN203462349U (en) * | 2013-08-30 | 2014-03-05 | 江苏兴达钢帘线股份有限公司 | Three-layer steel cord with four-ten-sixteen combination structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190540A (en) * | 2017-06-21 | 2017-09-22 | 盛利维尔（中国）新材料技术股份有限公司 | A kind of load-carrying tire carcass steel cord with 2+6+12 structures |
| CN107268309A (en) * | 2017-06-21 | 2017-10-20 | 盛利维尔（中国）新材料技术股份有限公司 | A kind of load-carrying tire carcass steel cord with 2+7+13 structures |
| WO2020113605A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏兴达钢帘线股份有限公司 | High-rubber penetration steel cord having 2+2+8×n structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103485216B (en) | 2016-10-19 |
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