CN206090153U - Steel cord for tire belt layer - Google Patents
Steel cord for tire belt layer Download PDFInfo
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- CN206090153U CN206090153U CN201620851909.2U CN201620851909U CN206090153U CN 206090153 U CN206090153 U CN 206090153U CN 201620851909 U CN201620851909 U CN 201620851909U CN 206090153 U CN206090153 U CN 206090153U
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- steel
- cord
- steel wires
- steel cord
- sandwich layer
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Abstract
The utility model discloses a steel cord for tire belt layer, it is by seven steel wire composition, and wherein three piece outer steel wires are twisted with the fingers around the sandwich layer that is formed by four steel wires and are made the rope, and the cross section of the steel cord that forms is irregular polygon, four steel wires of sandwich layer are not twisted, and the cross section is anomalous quadrangle. The utility model discloses the steel cord is used in that every steel wire homoenergetic fully contacts with rubber among the all steel load radial tyre, and the glue permeation performance is good, can improve tyre service life, but one shot forming reduction in production cost again.
Description
Technical field
This utility model is related to steel cord, more particularly to a kind of tire belt steel cord.
Background technology
In the modern life and production, people are increasing to the demand of automobile, bogie industry, and this has just driven tire work
Developing rapidly for industry, also proposes higher and higher requirement, the endurance quality of tire, speed ability, safety to tire enterprise
Energy and refresh rate are improved constantly.Under competitive pressure, cost efficiency is also that necessity of tire enterprise seeking development in the market is arranged
Apply, the saving of limited resources is using also being brought into schedule by manufacturing industry.Accordingly, as the all-steel cord not disconnecting of tyre framework material
Challenged by performance, cost and energy conservation.
Belt is the critical component of all-steel load-bearing radial tire, bears the load of tire about more than 60%, its bone
Frame material performance is to determine one of key factor of tire combination property.Belt all-steel cord emphasis rubber osmosis performance,
Rigidity, bond propertiess, tensile strength, decay resistance, anti-compression properties, shock resistance and dimensional stability etc..
The multiple structure of traditional high-capacity tyre belt steel cord mostly rule, such as traditional 3+6 structures, 6
The steel wire of same diameter is formed around 3 smaller single twistings of diameter.The tactical rule is smooth, and cord contact is tight, sandwich layer
Steel wire is fully wrapped around by outer layer, limits the contact area of steel wire and rubber, prevents being fully infiltrated into for rubber, reduces cord
Bonding force and strike-through performance, and easily there is core strand leakage, monofilament and the defect such as floats in production process.
The content of the invention
The purpose of this utility model is to provide a kind of tire belt steel cord, and its simple structure, production efficiency are high,
Have the advantages that strike-through performance is good, bonding force is high, decay resistance is strong.
To reach above-mentioned purpose, the technical solution of the utility model is：
A kind of tire belt steel cord, which is made up of seven steel wires, and wherein three steel wires of outer layer are around by four steel
The sandwich layer that silk is formed is twisted into rope, and the cross section of formed steel cord is irregular polygon, and four steel wires of the sandwich layer are mutual
Do not twist, cross section is irregular tetragon.
Further, every monofilament of four steel wires of the sandwich layer before twisting through prefabricated deformation, a height of list of deformation wave
1.1-1.5 times of silk diameter；Every monofilament of three steel wires of outer layer is helix-deformed during twisting, and a height of cord of deformation wave is straight
0.9-1.1 times of footpath.
Also, described seven filament diameters of cord are identical, it is 0.25-0.45mm, 50-60 of the wire pitch for filament diameter
Times.
The irregular structure design of this utility model helps all-steel cord to realize more preferable rubber to ooze from laid construction
Permeability energy, by selecting suitable radical to ectonexine, is twisted into the space that rope will not form closing, it is also possible to leave in outer layer
Space allows rubber to penetrate into, and not only increases gap and the specific surface area between steel wire by deformation prefabricated to monofilament, enables sizing material
Enough completely to penetrate into, and the performance such as the rigidity of control scalable cord to deflection, production process is not easy to appearance
Into rope defect.
This utility model is had the advantage that compared with prior art：
1. structure steel cord cross section of the present utility model is irregular polygon, considerably increases connecing for sizing material and steel wire
Contacting surface is accumulated, and so as to improve the bonding force and strike-through performance of cord, further improves tyre life.
2. this utility model sandwich layer steel wire is identical with the diameter of cover wire, and four steel wires of sandwich layer deform through in advance, and
Deflection is adjustable, about 1.1-1.5 times of filament diameter, forms irregular tetragon, and four steel wires of sandwich layer due to deformation
Amount will not be in close contact, leave more gaps, be easy to the infiltration of rubber more than monofilament diameter itself；Due to not twisting, but have
Prefabricated deformation, not only reduces the spinning loss of intensity, and increased the surface ratio of monofilament and rubber contact, improves bonding
Power；0.9-1.1 times for cord diameter of three steel wire wave height of outer layer, can realize not exclusively wrapping up four steel wires of sandwich layer so that
Rubber can be fully contacted with seven steel wires, increase the contact surface of rubber and cord, be conducive to improving between sizing material and steel cord
Bonding force and strike-through performance, and because wave height and cord diameter are close to, be difficult to make cord that filoselle or bulge phenomenon to occur.
3. this utility model is designed based on the loading characteristic of radial tire undertread, simple structure, one-shot forming, and
Multilamellar cord is compared, and steel cord diameter reduces, therefore can increase density, is reduced individual wire stress, is reduced steel wire and glue
Stress difference between material, reduces the shear stress between rubber and all-steel cord, improves the fatigue performance of tire.
4. this utility model in process of production, as central strand deforms, has larger percentage elongation, causes and be not susceptible to core
Stock dislocation defects, outer layer not exclusively wrap up central strand, and arrangement not closely, is not in that outer layer monofilament is extruded and floats phenomenon.
Description of the drawings
Cross-sectional views of the Fig. 1 for this utility model steel cord embodiment.
Specific embodiment
Referring to Fig. 1, a kind of tire belt steel cord of the present utility model, which is made up of seven steel wires, wherein outer layer
Three steel wires 2 are twisted into rope around the sandwich layer formed by four steel wires 1, and the cross section of formed steel cord is irregular polygon
Shape, four steel wires of the sandwich layer 1 are not mutually twisted, and cross section is irregular tetragon.
Every monofilament of four steel wires 1 of sandwich layer described in the utility model through prefabricated deformation, deforms wave height before twisting
For 1.1-1.5 times of filament diameter；Every monofilament of three steel wires 2 of outer layer is helix-deformed during twisting, and deformation wave is a height of
0.9-1.1 times of cord diameter.
Described seven filament diameters of cord are identical, are 0.25-0.45mm, and wire pitch is 50-60 times of filament diameter.
Embodiment
Monofilament is through dry drawing, heat treatment, plating, wet drawing etc. by the wire rod that carbon content is 0.82wt%, a diameter of 5.5mm
The steel wire of a diameter of 0.35mm is drawn into after operation.
Four steel wires 1 of sandwich layer adopt outer unwrapping wire form, monofilament to have 32 tooth flows of metal through a pair in drawing process
The circular arc type of device applies predeformation, obtains the monofilament of wave height 0.43mm；Three steel wires 2 of outer layer adopt interior unwrapping wire form, in twisting
During deform, four steel wires 1 of the sandwich layer do not twist, and three steel wires 2 of outer layer are twisted with the fingers with S around four steel wires 1 of sandwich layer and 18mm
The lay pitch twist into rope.
This utility model obtain steel cord section be irregular polygon, this structure cord may replace 3 × 0.20+6 ×
The traditional rule such as 0.35HT cord is used on tire belt, and strike-through performance and anti-fatigue performance are significantly improved.
Claims (3)
1. a kind of tire belt steel cord, it is characterised in that be made up of seven steel wires, wherein three steel wires of outer layer around by
The sandwich layer that four steel wires are formed is twisted into rope, and the cross section of formed steel cord is irregular polygon, four of the sandwich layer
Steel wire is not mutually twisted, and cross section is irregular tetragon.
2. tire belt steel cord as claimed in claim 1, it is characterised in that four steel wires of the sandwich layer per root list
Silk before twisting through prefabricated deformation, 1.1-1.5 times of a height of filament diameter of deformation wave；Every monofilament of three steel wires of outer layer
It is helix-deformed during twisting, 0.9-1.1 times of a height of cord diameter of deformation wave.
3. tire belt steel cord as claimed in claim 1 or 2, it is characterised in that seven steel wires of the cord are straight
Footpath is identical, is 0.25-0.45mm, and wire pitch is 50-60 times of filament diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620851909.2U CN206090153U (en) | 2016-08-08 | 2016-08-08 | Steel cord for tire belt layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620851909.2U CN206090153U (en) | 2016-08-08 | 2016-08-08 | Steel cord for tire belt layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206090153U true CN206090153U (en) | 2017-04-12 |
Family
ID=58468191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620851909.2U Active CN206090153U (en) | 2016-08-08 | 2016-08-08 | Steel cord for tire belt layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206090153U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610212A (en) * | 2018-12-03 | 2019-04-12 | 江苏兴达钢帘线股份有限公司 | A kind of wirerope and its production technology with special construction |
| CN110172849A (en) * | 2019-06-25 | 2019-08-27 | 江苏宝钢精密钢丝有限公司 | A kind of thin steel cord of synchronous belt |
| WO2020113604A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏兴达钢帘线股份有限公司 | Steel wire rope that has high structural stability and preparation process therefor |
| CN111607869A (en) * | 2019-02-26 | 2020-09-01 | 贝卡尔特公司 | Steel cord for rubber reinforcement |
| CN113403870A (en) * | 2021-06-25 | 2021-09-17 | 山东大业股份有限公司 | Ultrahigh-strength high-rubber-permeability steel cord, twisting method and twisting equipment |
| 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 |
-
2016
- 2016-08-08 CN CN201620851909.2U patent/CN206090153U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610212A (en) * | 2018-12-03 | 2019-04-12 | 江苏兴达钢帘线股份有限公司 | A kind of wirerope and its production technology with special construction |
| WO2020113604A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏兴达钢帘线股份有限公司 | Steel wire rope that has high structural stability and preparation process therefor |
| WO2020113612A1 (en) * | 2018-12-03 | 2020-06-11 | 江苏兴达钢帘线股份有限公司 | Steel wire having special structure and manufacturing method therefor |
| CN111607869A (en) * | 2019-02-26 | 2020-09-01 | 贝卡尔特公司 | Steel cord for rubber reinforcement |
| CN110172849A (en) * | 2019-06-25 | 2019-08-27 | 江苏宝钢精密钢丝有限公司 | A kind of thin steel cord of synchronous belt |
| CN113403870A (en) * | 2021-06-25 | 2021-09-17 | 山东大业股份有限公司 | Ultrahigh-strength high-rubber-permeability steel cord, twisting method and twisting equipment |
| 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 |
| WO2024045308A1 (en) * | 2022-08-31 | 2024-03-07 | 江苏兴达钢帘线股份有限公司 | Steel cord and production method therefor, and tire |
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