CN106906681A - It is a kind of（2+7）The tire belt steel cord of structure - Google Patents
It is a kind of（2+7）The tire belt steel cord of structure Download PDFInfo
- Publication number
- CN106906681A CN106906681A CN201710047202.5A CN201710047202A CN106906681A CN 106906681 A CN106906681 A CN 106906681A CN 201710047202 A CN201710047202 A CN 201710047202A CN 106906681 A CN106906681 A CN 106906681A
- Authority
- CN
- China
- Prior art keywords
- heart yearn
- internal layer
- fingers
- wire
- steel 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.)
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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
- D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand 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
- D07B2201/104—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
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/2009—Wires or filaments characterised by the materials used
-
- 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
- D07B2201/2016—Strands characterised by their cross-sectional 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
- D07B2201/2015—Strands
- D07B2201/2038—Strands characterised by the number of wires or filaments
- D07B2201/204—Strands characterised by the number of wires or filaments nine or more wires or filaments respectively forming multiple layers
-
- 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
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/2055—Improving load capacity
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2046—Tire cords
Landscapes
- Tires In General (AREA)
- Ropes Or Cables (AREA)
Abstract
The present invention proposes a kind of tire belt steel cord of (2+7) structure, the heart yearn that two extra-high strength wire heart yearn steel wires that it includes internal layer are constituted, it is circular steel cord, the rectangular arrangement of internal layer heart yearn that seven extra-high strength wires of outer layer are compiled around two heart yearn steel wires of internal layer and twist with the fingers Formation cross-section；Heart yearn and cover wire compile the sth. made by twisting twisted with the fingers to be S to, and the internal layer heart yearn steel wire and cover wire equal diameters, described internal layer heart yearn compiles the lay pitch twisted with the fingers and the lay pitch twisted with the fingers compiled less than cover wire.Tire belt steel cord of the invention, intensity is high, strike-through performance is good, endurance；In addition, using extra-high strength wire, gauge of wire is small, all-steel cord relative usage, the thickness of thin of cord are reduced, it is also possible to reduce Tire production cost, adapt to green, the demand of high-performance tire development.
Description
Technical field
The present invention relates to tire for vehicles steel cord technical field, more particularly to a kind of tire belt of (2+7) structure is used
Steel cord.
Background technology
Belt is the main stressed member of radial, and the deformation such as periodically bearing to stretch, bend, shear should
Power.Belt plays an important role to the security of tire, comfortableness, high speed performance and endurance quality, although these performances with
Belt severing angle, width and cord density are relevant, but more close with the property relationship of steel cord.Belt steel
Cord only has with intensity higher, strike-through higher, fatigue performance, can just be favorably improved the performance of belt, enters
And improve tire quality.In addition, as society is to environmental protection, the concern all the more of green product, lightweight tire oil consumption is few, because
This, while the various performance requirements of tire are paid close attention to, will also pay close attention to influence problem of the steel cord to tire weight, and cord is got over
The more tire weights of thick, strike-through will be bigger.
The content of the invention
In view of the use demand of existing tire, it is an object of the invention to provide a kind of tire belt steel cord, steel curtain
Line strength is high, strike-through performance is good, fatigue durability, can also mitigate tire weight, saves the manufacturing cost of tire.
To achieve the object of the present invention, the tire belt of one kind (2+7) structure of the invention includes internal layer with steel cord
Two extra-high strength wire heart yearn steel wires constitute heart yearn, seven extra-high strength wires of outer layer are around two heart yearn steel of internal layer
It is circular steel cord, the rectangular arrangement of internal layer heart yearn that silk is compiled and twists with the fingers Formation cross-section；Heart yearn and cover wire compile the sth. made by twisting twisted with the fingers to
S is to and the diameter of the internal layer heart yearn steel wire and cover wire is 0.22mm, and described internal layer heart yearn compiles the lay pitch twisted with the fingers
The lay pitch twisted with the fingers is compiled less than cover wire；And it is 6.3mm that described internal layer heart yearn compiles the lay pitch twisted with the fingers, cover wire compiles the lay pitch twisted with the fingers and is
12.5mm。
Described tire belt steel cord of the invention, intensity is high, strike-through performance is good, endurance；In addition, using super
High-tensile steel wires, gauge of wire is small, reduces all-steel cord relative usage, the thickness of thin of cord, it is also possible to reduce Tire production
Cost, adapts to green, the demand of high-performance tire development.
Brief description of the drawings
By detailed description below in conjunction with the accompanying drawings, the present invention is foregoing will to be become with other objects, features and advantages
Obviously.Wherein：
Fig. 1 is the structural representation of the tire belt steel cord of one kind (2+7) structure of the invention；
Fig. 2 show the lay pitch schematic diagram of the steel cord of Fig. 1.
Specific embodiment
The knot of the tire belt steel cord of (2+7) structure of the one embodiment of the invention shown in reference picture 1, Fig. 2
Structure schematic diagram, described steel cord includes the heart yearn that two heart yearn steel wires 10 of internal layer are constituted, seven steel wires 20 of outer layer around
It is circular steel cord, the rectangular arrangement of internal layer heart yearn that two heart yearn steel wires of internal layer are compiled and twist with the fingers Formation cross-section；Heart yearn and outer layer
Steel wire compile twist with the fingers sth. made by twisting to be S to, and the internal layer heart yearn steel wire and cover wire equal diameters.In a preferred embodiment party
In formula, the heart yearn steel wire and cover wire are extra-high strength wire, and its diameter is 0.22mm.
Steel cord of the invention is used according to newest《Radial steel cord》National standard (GB/T_11181-
2016) extra-high strength wire of regulation, the intensity of steel wire than the regular tenacity of same diameter improves 20% or so.Steel wire diameter
Small, the bend loading of cord, pliability and fatigue performance are also accordingly improved；Twisted with the fingers between steel wire to identical, be linear contact lay, contacted
Area is big, and contact is small, is effectively reduced the abrasion between steel wire.This structure can ensure the situation of carcass intensity
Under, the thickness of cord is reduced, the tire weight being made is light, and heat is low, and oil consumption is few, saves the resources of production and production cost.
Further, since the unimach silk cord of small diameter is employed, therefore, lay pitch during steel cord twisting, no
With layer steel cord sth. made by twisting to etc. be required for being designed accordingly and experimental verification.The lay pitch is big, and productivity ratio is high, but fatigue performance
Decline, this is that due to when the lay pitch is bigger, the torsional deflection degree of cord monofilament in twisting is just smaller, its elastic restoring force compared with
Greatly, if this elastic restoring force cannot be eliminated, can decline the fatigue performance of cord, service life shortens；The lay pitch is small,
The fatigue performance of steel cord improves, and elongation is high, but the spinning loss of intensity is big, and productivity ratio is also reduced.So according to difference
It is the important performance in steel cord R＆D process that the all-steel cord of intensity and different steel wire diameters carry out rational lay pitch design
Parameter.One preferred embodiment in, it is 6.3mm that the internal layer heart yearn compiles the lay pitch twisted with the fingers, and cover wire compiles the lay pitch twisted with the fingers and is
12.5mm。
The performance of the steel cord of 2+7 × 0.22ST structures of the invention and the steel cord of existing 2+7 × 0.22HT structures
Parameter comparison is as follows：
| Project | 2+7×0.22ST | 2+7×0.26HT |
| Cord diameter (± 5%)/mm | 0.830 | 1.05 |
| Twist with the fingers to | S | S |
| The lay pitch (± 5%)/mm | 6.3/12.5 | 7.5/15 |
| Minimum Fracture Force/N | 1470 | 1290 |
| Line density (± 5%)/g/m | 2.740 | 3.8 |
As can be seen from the table, compared with 2+7 × 0.226HT steel cords, the steel cord minimum Fracture Force of 2+7 × 0.22ST shows
Write and improve, and intensity is high, and fatigue durability is high, such that it is able to lift tyre performance.
Tire belt steel cord of the invention, intensity is high, strike-through performance is good, endurance；In addition, using superhigh intensity
Steel wire, gauge of wire is small, reduces all-steel cord relative usage, and the thickness of thin of cord, it is also possible to reduce Tire production cost is fitted
Should green, the demand of high-performance tire development.
The invention is not limited in described embodiment, those skilled in the art is not departing from spirit of the invention i.e. public affairs
In the range of opening, can still make some amendments or change, thus the scope that is limited with claims of the scope of the present invention as
It is accurate.
Claims (1)
1. a kind of tire belt steel cord of (2+7) structure, it is characterised in that described steel cord includes two of internal layer
The heart yearn that superhigh intensity heart yearn steel wire is constituted, seven extra-high strength wires of outer layer are compiled to twist with the fingers and formed around two heart yearn steel wires of internal layer
Section is circular steel cord, the rectangular arrangement of internal layer heart yearn；Heart yearn and cover wire compile the sth. made by twisting twisted with the fingers to be S to, and
The diameter of the internal layer heart yearn steel wire and cover wire is 0.22mm, and described internal layer heart yearn compiles the lay pitch twisted with the fingers and is less than outer layer steel
Silk compiles the lay pitch twisted with the fingers, and it is 6.3mm that described internal layer heart yearn compiles the lay pitch twisted with the fingers, and it is 12.5mm that cover wire compiles the lay pitch twisted with the fingers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047202.5A CN106906681A (en) | 2017-01-19 | 2017-01-19 | It is a kind of（2+7）The tire belt steel cord of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047202.5A CN106906681A (en) | 2017-01-19 | 2017-01-19 | It is a kind of（2+7）The tire belt steel cord of structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106906681A true CN106906681A (en) | 2017-06-30 |
Family
ID=59206848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047202.5A Withdrawn CN106906681A (en) | 2017-01-19 | 2017-01-19 | It is a kind of（2+7）The tire belt steel cord of structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906681A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338767A (en) * | 2018-12-03 | 2019-02-15 | 江苏兴达钢帘线股份有限公司 | A kind of production technology of the radial ply tyre steel wire cord of 2+7 × d structure |
| CN109518498A (en) * | 2018-12-11 | 2019-03-26 | 镇江耐丝新型材料有限公司 | A kind of belt superhigh intensity steel cord of (4+5) structure |
| CN115404709A (en) * | 2022-08-31 | 2022-11-29 | 江苏兴达钢帘线股份有限公司 | Steel cord, production method thereof and tire |
| WO2024103435A1 (en) * | 2022-11-14 | 2024-05-23 | 江苏兴达钢帘线股份有限公司 | Steel cord having 2+1+6 structure and manufacturing method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203373485U (en) * | 2013-07-05 | 2014-01-01 | 江苏兴达钢帘线股份有限公司 | All-steel cord for belt layer of radial tire |
| CN204311271U (en) * | 2014-10-30 | 2015-05-06 | 江苏兴达钢帘线股份有限公司 | Semi-open structural steel cord |
| CN204311270U (en) * | 2014-10-30 | 2015-05-06 | 江苏兴达钢帘线股份有限公司 | A kind of ST steel cord |
| CN204898204U (en) * | 2015-02-06 | 2015-12-23 | 张家港市骏马钢帘线有限公司 | Steel wire cord |
| CN205347861U (en) * | 2015-12-02 | 2016-06-29 | 江苏宝钢精密钢丝有限公司 | A ultrahigh strength steel cord for tire belt layer |
| CN207295322U (en) * | 2017-01-19 | 2018-05-01 | 江苏兴达钢帘线股份有限公司 | It is a kind of（2+7）The tire belt steel cord of structure |
-
2017
- 2017-01-19 CN CN201710047202.5A patent/CN106906681A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203373485U (en) * | 2013-07-05 | 2014-01-01 | 江苏兴达钢帘线股份有限公司 | All-steel cord for belt layer of radial tire |
| CN204311271U (en) * | 2014-10-30 | 2015-05-06 | 江苏兴达钢帘线股份有限公司 | Semi-open structural steel cord |
| CN204311270U (en) * | 2014-10-30 | 2015-05-06 | 江苏兴达钢帘线股份有限公司 | A kind of ST steel cord |
| CN204898204U (en) * | 2015-02-06 | 2015-12-23 | 张家港市骏马钢帘线有限公司 | Steel wire cord |
| CN205347861U (en) * | 2015-12-02 | 2016-06-29 | 江苏宝钢精密钢丝有限公司 | A ultrahigh strength steel cord for tire belt layer |
| CN207295322U (en) * | 2017-01-19 | 2018-05-01 | 江苏兴达钢帘线股份有限公司 | It is a kind of（2+7）The tire belt steel cord of structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338767A (en) * | 2018-12-03 | 2019-02-15 | 江苏兴达钢帘线股份有限公司 | A kind of production technology of the radial ply tyre steel wire cord of 2+7 × d structure |
| CN109518498A (en) * | 2018-12-11 | 2019-03-26 | 镇江耐丝新型材料有限公司 | A kind of belt superhigh intensity steel cord of (4+5) structure |
| CN115404709A (en) * | 2022-08-31 | 2022-11-29 | 江苏兴达钢帘线股份有限公司 | Steel cord, production method thereof and tire |
| CN115404709B (en) * | 2022-08-31 | 2023-05-30 | 江苏兴达钢帘线股份有限公司 | Steel cord, production method thereof and tire |
| WO2024103435A1 (en) * | 2022-11-14 | 2024-05-23 | 江苏兴达钢帘线股份有限公司 | Steel cord having 2+1+6 structure and manufacturing method therefor |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170630 |
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| WW01 | Invention patent application withdrawn after publication |