CN107268309A - A kind of load-carrying tire carcass steel cord with 2+7+13 structures - Google Patents
A kind of load-carrying tire carcass steel cord with 2+7+13 structures Download PDFInfo
- Publication number
- CN107268309A CN107268309A CN201710477054.0A CN201710477054A CN107268309A CN 107268309 A CN107268309 A CN 107268309A CN 201710477054 A CN201710477054 A CN 201710477054A CN 107268309 A CN107268309 A CN 107268309A
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- CN
- China
- Prior art keywords
- intermediate layer
- diameter
- steel cord
- layer
- central core
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 238000002224 dissection Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
-
- 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
- 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
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1028—Rope or cable structures characterised by the number of strands
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1028—Rope or cable structures characterised by the number of strands
- D07B2201/1032—Rope or cable structures characterised by the number of strands three to eight strands respectively forming a single layer
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1028—Rope or cable structures characterised by the number of strands
- D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1044—Rope or cable structures twisted characterised by a value or range of the pitch parameter given
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1052—Rope or cable structures twisted using lang lay, i.e. the wires or filaments being inclined relative to the rope axis
-
- 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
- D07B2201/2001—Wires or filaments
- D07B2201/2006—Wires or filaments characterised by a value or range of the dimension given
-
- 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
- D07B2201/2036—Strands characterised by the use of different wires or filaments
- D07B2201/2037—Strands characterised by the use of different wires or filaments regarding the dimension of the wires or filaments
Landscapes
- Ropes Or Cables (AREA)
- Tires In General (AREA)
Abstract
The present invention relates to steel cord technical field, particularly a kind of load-carrying tire carcass steel cord with 2+7+13 structures, including central core, intermediate layer and outer layer, the central core is formed by a diameter of d1 two silk threads with lay pitch p1 windings, in the intermediate layer a diameter of d2 seven silk threads with lay pitch p2 around central core, in the outer layer a diameter of d3 13 silk threads with lay pitch p3 around intermediate layer；The gap of the intermediate layer and outer layer with layer between adjacent silk thread is not less than 25 μm.After said structure, the present invention ensure that the opening of steel cord ectonexine from structure, 100% strike-through is fully ensured that, while no outer wrapping wire, which improves steel cord fatigue life, reduces manufacturing cost, simultaneously because core strand 2x1 wire diameters are less than cover wire diameter, moment of torsion is small and anchor force with cover wire is big, because layer reverses cord nose problem caused by release when effectively prevent cord severing.
Description
Technical field
The present invention relates to steel cord technical field, particularly a kind of load-carrying tire carcass steel cord with 2+7+13 structures.
Background technology
The outer winding structure 3+9+15x0.22+1 of conventional belt (exemplified by illustrate), it is outer around wire process due to adding, do not only result in
Steel cord manufacturing cost is higher, and outer wrapping wire can produce dissection during the military service of steel cord to cord cover wire
Steel cord fatigue life is caused to be greatly lowered, this structure cord glue permeation is very poor in addition.
Illustrate again by taking 0.25+6+12x0.225HT as an example, this structure cord is much better than wrapping wire outside above-mentioned band from performance
Structure, but be due to that core wire diameter is more bigger than cover wire, the gap very little between two outside layers steel wire, cord glue permeation
It is still bad, while such as being made of double-twisting technology, often there is a layer torsion problem, and the thick torsional torque of core wire is big, cord severing
Retrotorsion easily discharges, and causes cover wire to reverse disequilibrium, and the problem of usually having nose in cord severing occurs, and double
Twist with the fingers technique due to it is more efficient be the prevailing technology of current steel cord production.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of steel cord suitable for load-carrying tire carcass of excellent performance.
In order to solve the above technical problems, a kind of load-carrying tire carcass steel cord with 2+7+13 structures of the present invention, including
Central core, intermediate layer and outer layer, the central core are formed by a diameter of d1 two silk threads with lay pitch p1 windings, in the centre
Layer in a diameter of d2 seven silk threads with lay pitch p2 around central core, a diameter of d3 13 silks in the outer layer
Line is with lay pitch p3 around intermediate layer；The gap of the intermediate layer and outer layer with layer between adjacent silk thread is not less than 25 μm.
Further, the central core wire diameter d1 is intermediate layer filaments diameter d2 75%-90%, the outer layer silk
Linear diameter d3 is intermediate layer filaments diameter d2 88%-108%.
Further, the maximum gauge of the central core silk thread, intermediate layer filaments and outer filaments is not more than 0.26mm.
Further, the central core, the three layers of silk thread in intermediate layer and outer layer are twist-on-twist.
Further, the central core lay pitch p1 is intermediate layer lay pitch p2 43%-83%.
Further, the outer layer lay pitch p3 is intermediate layer lay pitch p2 180%-220%.
After said structure, the present invention ensure that the opening of steel cord ectonexine from structure, fully ensure that
100% strike-through, while improving steel cord fatigue life without outer wrapping wire reduces manufacturing cost, simultaneously because core strand
2x1 wire diameters are less than cover wire diameter, and moment of torsion is small and anchor force with cover wire is big, when effectively prevent cord severing
Because layer reverses the caused cord nose problem of release.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structural representation of the load-carrying tire carcass steel cord with 2+7+13 structures of the present invention.
In figure：Layer centered on 1,2 be intermediate layer, and 3 be outer layer
Embodiment
As shown in figure 1, the present invention a kind of load-carrying tire carcass steel cord with 2+7+13 structures, including central core 1, in
Interbed 2 and outer layer 3, the central core 1 are formed by a diameter of d1 two silk threads with lay pitch p1 windings, in the intermediate layer 2
A diameter of d2 seven silk threads with lay pitch p2 around central core, a diameter of d3 13 silk threads in the outer layer 3
With lay pitch p3 around intermediate layer；The gap of the intermediate layer and outer layer with layer between adjacent silk thread is not less than 25 μm.
Further, the central core wire diameter d1 is intermediate layer filaments diameter d2 75%-90%, the outer layer silk
Linear diameter d3 is intermediate layer filaments diameter d2 88%-108%, and the selection of each layer wire diameter should ensure that the gap between steel wire
Reach more than 25 microns.Compared with existing 3+9+15+1 structures, this structure reduces outer wrapping wire, improve cord fatigue behaviour,
Reduce cord manufacturing cost, it is ensured that 100% strike-through, so that the life-span of tire is greatly improved, compared with 1+6+12,
There are more preferable strike-through, and nose risk when reducing cord fabric severing, apply to the excellent performance cord of load-carrying tire carcass.
Further, the maximum gauge of the silk thread of central core 1, the silk thread of intermediate layer 2 and the silk thread of outer layer 3 is not more than
0.26mm。
Further, the central core 1, the 3 three layers of silk thread in intermediate layer 2 and outer layer are twist-on-twist.The central core lay pitch p1
For intermediate layer lay pitch p2 43%-83%.The outer layer lay pitch p3 is intermediate layer lay pitch p2 180%-220%.
Embodiment one：
By taking 2x0.20+7x0.24+13x0.24ST 6.3/10/20SSS as an example
1st, the semi-finished product brass wire diameter 1.40mm of production 0.20；
2nd, the semi-finished product brass wire diameter 1.80mm of production 0.24；
3rd, production center layer 2x0.20；
4th, intermediate layer 2x0.20+7x0.24 is produced；
5th, production cord 2x0.20+7x0.24+13x0.24 6.3/10/20SSS.
Gap L 1 in present embodiment in intermediate layer 2 between adjacent silk thread is in 37.7 μm, outer layer 3 between adjacent silk thread
Gap L 2 be 28 μm.
Due to 100% strike-through performance, fatigue life of the specification in tire, bonding force life-span, decay resistance are equal
It is very outstanding.
Although the foregoing describing the embodiment of the present invention, those skilled in the art should be appreciated that this
It is merely illustrative of, various changes or modifications can be made to present embodiment, without departing from the principle and essence of the present invention,
Protection scope of the present invention is only limited by the claims that follow.
Claims (6)
1. a kind of load-carrying tire carcass steel cord with 2+7+13 structures, including central core, intermediate layer and outer layer, its feature exist
In：The central core is formed by a diameter of d1 two silk threads with lay pitch p1 windings, the seven of a diameter of d2 in the intermediate layer
Root silk thread with lay pitch p2 around central core, in the outer layer a diameter of d3 13 silk threads with lay pitch p3 wound on
Around intermediate layer；The gap of the intermediate layer and outer layer with layer between adjacent silk thread is not less than 25 μm.
2. according to a kind of load-carrying tire carcass steel cord with 2+7+13 structures described in claim 1, it is characterised in that：It is described
Central core wire diameter d1 is intermediate layer filaments diameter d2 75%-90%, and the outer filaments diameter d3 is intermediate layer filaments
Diameter d2 88%-108%.
3. according to a kind of load-carrying tire carcass steel cord with 2+7+13 structures described in claim 1, it is characterised in that：It is described
The maximum gauge of central core silk thread, intermediate layer filaments and outer filaments is not more than 0.26mm.
4. according to a kind of load-carrying tire carcass steel cord with 2+7+13 structures described in claim 1, it is characterised in that：It is described
Central core, the three layers of silk thread in intermediate layer and outer layer are twist-on-twist.
5. according to a kind of load-carrying tire carcass steel cord with 2+7+13 structures described in claim 4, it is characterised in that：It is described
Central core lay pitch p1 is intermediate layer lay pitch p2 43%-83%.
6. according to a kind of load-carrying tire carcass steel cord with 2+7+13 structures described in claim 4, it is characterised in that：It is described
Outer layer lay pitch p3 is intermediate layer lay pitch p2 180%-220%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477054.0A CN107268309A (en) | 2017-06-21 | 2017-06-21 | A kind of load-carrying tire carcass steel cord with 2+7+13 structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477054.0A CN107268309A (en) | 2017-06-21 | 2017-06-21 | A kind of load-carrying tire carcass steel cord with 2+7+13 structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268309A true CN107268309A (en) | 2017-10-20 |
Family
ID=60068212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710477054.0A Pending CN107268309A (en) | 2017-06-21 | 2017-06-21 | A kind of load-carrying tire carcass steel cord with 2+7+13 structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107268309A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079808A (en) * | 1993-06-29 | 1995-01-13 | Bridgestone Metarufua Kk | Pneumatic radial tire heavy load |
| JP2006274527A (en) * | 2005-03-04 | 2006-10-12 | Bridgestone Corp | Steel cord for rubber reinforcement and pneumatic radial tire produced by using the same |
| CN102892949A (en) * | 2010-05-20 | 2013-01-23 | 米其林集团总公司 | Multi-layered metal cord rubberised in situ by an unsaturated thermoplastic elastomer |
| CN103485216A (en) * | 2013-08-30 | 2014-01-01 | 江苏兴达钢帘线股份有限公司 | Three-layer steel cord with 4+10+16 structure |
| CN104854274A (en) * | 2012-12-14 | 2015-08-19 | 米其林集团总公司 | Steel cord comprising layers having high penetrability |
| CN207091803U (en) * | 2017-06-21 | 2018-03-13 | 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 |
-
2017
- 2017-06-21 CN CN201710477054.0A patent/CN107268309A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079808A (en) * | 1993-06-29 | 1995-01-13 | Bridgestone Metarufua Kk | Pneumatic radial tire heavy load |
| JP2006274527A (en) * | 2005-03-04 | 2006-10-12 | Bridgestone Corp | Steel cord for rubber reinforcement and pneumatic radial tire produced by using the same |
| CN102892949A (en) * | 2010-05-20 | 2013-01-23 | 米其林集团总公司 | Multi-layered metal cord rubberised in situ by an unsaturated thermoplastic elastomer |
| CN104854274A (en) * | 2012-12-14 | 2015-08-19 | 米其林集团总公司 | Steel cord comprising layers having high penetrability |
| CN103485216A (en) * | 2013-08-30 | 2014-01-01 | 江苏兴达钢帘线股份有限公司 | Three-layer steel cord with 4+10+16 structure |
| CN207091803U (en) * | 2017-06-21 | 2018-03-13 | 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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213200 No. 268 Nanhuan Second Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: Shengliwei (Changzhou) metal material Co.,Ltd. Address before: 213200 No. 268 Nanhuan Second Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: SUNNYWELL (CHINA) NEW MATERIAL TECHNOLOGY CO.,LTD. |
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| CB02 | Change of applicant information |