CN207091804U - A kind of load-carrying tire carcass steel cord with 2+6+12 structures - Google Patents
A kind of load-carrying tire carcass steel cord with 2+6+12 structures Download PDFInfo
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- CN207091804U CN207091804U CN201720727033.5U CN201720727033U CN207091804U CN 207091804 U CN207091804 U CN 207091804U CN 201720727033 U CN201720727033 U CN 201720727033U CN 207091804 U CN207091804 U CN 207091804U
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- intermediate layer
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- steel cord
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000035807 sensation Effects 0.000 abstract description 3
- 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
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- Tires In General (AREA)
- Ropes Or Cables (AREA)
Abstract
It the utility model is related to steel cord technical field, particularly a kind of load-carrying tire carcass steel cord with 2+6+12 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 six roots of sensation silk thread with lay pitch p2 around central core, in the outer layer a diameter of d3 12 silk threads with lay pitch p3 around intermediate layer；Gap between the adjacent silk thread of the same layer is not less than 25 μm.After said structure, the utility model ensure that the opening of steel cord ectonexine from structure, 100% strike-through is fully ensured that, improving steel cord fatigue life without outer wrapping wire simultaneously reduces manufacturing cost, simultaneously because core strand 2x1 wire diameters are much smaller than cover wire diameter, moment of torsion is small and anchor force with cover wire is big, cord nose problem caused by reversing release due to layer when effectively prevent cord severing.
Description
Technical field
It the utility model is related to steel cord technical field, particularly a kind of load-carrying tire carcass steel curtain with 2+6+12 structures
Line.
Background technology
The conventional steel cord structure of truck tire carcass has the outer winding structure steel cord such as 3+9+15x0.22 of traditional band at present
+ 1NT and relatively new type structure 1+6+12 such as 0.25+6x0.225+12x0.225HT.
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.In addition, above-mentioned 3+915x0.22+1 knots
The steel cord of structure, because 3 steel wires of central core are tangent, there is a gap inside, and the moisture in such gap easily corrodes to steel wire, shadow
The service life of steel cord is rung.
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 because 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 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, usually has the problem of nose to occur in cord severing, 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 utility model technical issues that need to address are to provide that a kind of cost is low and the load-carrying tire carcass steel curtain of long lifespan
Line.
In order to solve the above technical problems, a kind of load-carrying tire carcass steel cord with 2+6+12 structures of the present utility model,
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, described
In intermediate layer a diameter of d2 six roots of sensation silk thread with lay pitch p2 around central core, the 12 of a diameter of d3 in the outer layer
Root silk thread is with lay pitch p3 around intermediate layer；Gap between the adjacent silk thread of the same layer is not less than 25 μm.
Further, the central core wire diameter d1 be intermediate layer filaments diameter d2 60%-85%, the outer layer silk
Linear diameter d3 is intermediate layer filaments diameter d2 90%-110%.
Further, the maximum gauge of the central core silk thread, intermediate layer filaments and outer filaments is not more than 0.26mm.
Further, three layers of central core, intermediate layer and outer layer silk thread 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 utility model ensure that the opening of steel cord ectonexine from structure, fully ensure that
100% strike-through, while improve steel cord fatigue life without outer wrapping wire and reduce manufacturing cost, simultaneously because core strand
2x1 wire diameters are much smaller than cover wire diameter, and moment of torsion is small and anchor force with cover wire is big, effectively prevent cord severing
When due to layer reverse release caused by cord nose problem.
Brief description of the drawings
The utility model is described in further detail 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+6+12 structures of the utility model.
In figure：Layer centered on 1,2 be intermediate layer, and 3 be outer layer
Embodiment
As shown in figure 1, a kind of load-carrying tire carcass steel cord with 2+6+12 structures of the present utility model, including central core
1st, intermediate layer 2 and outer layer 3, the central core is formed by a diameter of d1 two silk threads with lay pitch p1 windings, in the intermediate layer
In a diameter of d2 six roots of sensation silk thread with lay pitch p2 around central core, a diameter of d3 12 silk threads in the outer layer
With lay pitch p3 around intermediate layer；Gap between the adjacent silk thread of the same layer is not less than 25 μm.
Further, the central core wire diameter d1 be intermediate layer filaments diameter d2 60%-85%, the outer layer silk
Linear diameter d3 is intermediate layer filaments diameter d2 90%-110%.
Further, the maximum gauge of the central core silk thread, intermediate layer filaments and outer filaments is not more than 0.26mm.
Further, three layers of central core, intermediate layer and outer layer silk thread 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%.
Embodiment one：
By taking 2x0.16+6x0.24+12x0.24ST 6.3/10/20SS as an example
1st, the semi-finished product brass wire diameter 1.20mm of production 0.16；
2nd, the semi-finished product brass wire diameter 1.80mm of production 0.24；
3rd, production center layer 2x0.16；
4th, intermediate layer 2x0.16+6x0.24 is produced outside central core；
5th, cord 2x0.16+6x0.24+12x0.24 6.3/10/20SS are produced.
Gap L 1 in present embodiment in intermediate layer 2 between adjacent silk thread is 40 μm, in outer layer 3 between adjacent silk thread
Gap L 2 is 29.2 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.
Compared with existing 3+9+15+1 structures, this structure reduces outer wrapping wire, improves cord fatigue behaviour, reduces curtain
Line manufacturing cost, it is ensured that 100% strike-through, so as to which the life-span of tire be greatly improved, compared with 1+6+12, have preferably
Strike-through, and nose risk when improving cord fabric severing, apply to the excellent performance cord of load-carrying tire carcass.
Although the foregoing describing specific embodiment of the present utility model, those skilled in the art should manage
Solution, these are merely illustrative of, and various changes or modifications can be made to present embodiment, without departing from original of the present utility model
Reason and essence, the scope of protection of the utility model are only limited by the claims that follow.
Claims (6)
1. a kind of load-carrying tire carcass steel cord with 2+6+12 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 six 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 12 silk threads with lay pitch p3 wound on
Around intermediate layer；Gap between the adjacent silk thread of the same layer is not less than 25 μm.
2. according to a kind of load-carrying tire carcass steel cord with 2+6+12 structures described in claim 1, it is characterised in that：It is described
Central core wire diameter d1 is intermediate layer filaments diameter d2 60%-85%, and the outer filaments diameter d3 is intermediate layer filaments
Diameter d2 90%-110%.
3. according to a kind of load-carrying tire carcass steel cord with 2+6+12 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+6+12 structures described in claim 1, it is characterised in that：It is described
Three layers of central core, intermediate layer and outer layer silk thread are twist-on-twist.
5. according to a kind of load-carrying tire carcass steel cord with 2+6+12 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+6+12 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 |
|---|---|---|---|
| CN201720727033.5U CN207091804U (en) | 2017-06-21 | 2017-06-21 | A kind of load-carrying tire carcass steel cord with 2+6+12 structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720727033.5U CN207091804U (en) | 2017-06-21 | 2017-06-21 | A kind of load-carrying tire carcass steel cord with 2+6+12 structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207091804U true CN207091804U (en) | 2018-03-13 |
Family
ID=61553069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720727033.5U Active CN207091804U (en) | 2017-06-21 | 2017-06-21 | A kind of load-carrying tire carcass steel cord with 2+6+12 structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207091804U (en) |
Cited By (2)
| 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 |
| CN110904551A (en) * | 2019-12-10 | 2020-03-24 | 江苏兴达钢帘线股份有限公司 | 1+ N + N + N structural steel cord |
-
2017
- 2017-06-21 CN CN201720727033.5U patent/CN207091804U/en active Active
Cited By (2)
| 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 |
| CN110904551A (en) * | 2019-12-10 | 2020-03-24 | 江苏兴达钢帘线股份有限公司 | 1+ N + N + N structural steel cord |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213200 No. 268 Nanhuan Second Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Shengliwei (Changzhou) metal material Co.,Ltd. Address before: 213200 No. 268 Nanhuan Second Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: SUNNYWELL (CHINA) NEW MATERIAL TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: No. 566 Changjiang East Road, Huaiyin District, Huai'an City, Jiangsu Province, 223300 Patentee after: Zhongtian Iron and Steel Group (Huai'an) New Materials Co.,Ltd. Country or region after: China Address before: 213200 No. 268 Nanhuan Second Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: Shengliwei (Changzhou) metal material Co.,Ltd. Country or region before: China |