CN220183680U - Steel cord for enhancing glue permeability - Google Patents
Steel cord for enhancing glue permeability Download PDFInfo
- Publication number
- CN220183680U CN220183680U CN202321517034.9U CN202321517034U CN220183680U CN 220183680 U CN220183680 U CN 220183680U CN 202321517034 U CN202321517034 U CN 202321517034U CN 220183680 U CN220183680 U CN 220183680U
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- China
- Prior art keywords
- steel
- core wire
- wire
- outer layer
- steel cord
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 107
- 239000010959 steel Substances 0.000 title claims abstract description 107
- 239000003292 glue Substances 0.000 title claims abstract description 20
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 9
- 230000035699 permeability Effects 0.000 title abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Tires In General (AREA)
- Ropes Or Cables (AREA)
Abstract
The utility model relates to the technical field of steel cord production, in particular to a steel cord for enhancing glue permeability, which comprises the following components: a core wire having a diameter D1; six outer layer steel wires are braided and twisted outside the core wire steel wires, and the diameter of each outer layer steel wire is D2; wherein the surface of the core wire is configured with a tooth-shaped structure which is uniformly distributed along the circumferential direction of the core wire and extends along the axial direction of the core wire. The breaking force of the steel cord is obviously improved, the linear density is reduced, the rolling resistance of the tire is reduced, the oil consumption is saved, the glue seepage amount is obviously improved, the contact between steel wires is less, the friction is low, and therefore the steel cord with better glue seepage performance has better fatigue resistance and the service life of the tire is long.
Description
Technical Field
The utility model relates to the technical field of steel cord production, in particular to a steel cord for enhancing glue permeability.
Background
The combination of the steel cord and the rubber can strengthen the rubber, and the rubber steel cord complex made of the steel cord combined rubber has high strength and rigidity, so that the steel cord complex is used for various rubber products such as tires, tracks and the like, and particularly, the steel cord can be used for automobile tires, especially for load-carrying buses.
In order to save fuel consumption, it is generally required that the rolling resistance is as small as possible, and reducing the cord diameter and the linear density is one of the main methods of reducing the weight of the cord, and the higher the rubber permeability of the steel cord is, the better the fatigue resistance of the steel cord is. For the steel cord with high rubber permeability, the contact between the steel wires is less, and the friction is low. Therefore, the steel cord with better glue seepage performance has better fatigue resistance and long service life of the tire.
The existing steel cord with the 1+6 structure has the advantages of simple structure and low manufacturing cost, but is not suitable for reinforcing the tire with relatively light weight due to low breaking force.
Disclosure of Invention
The utility model proposes a steel cord for enhancing the glue permeability, comprising:
a core wire having a diameter D1;
six outer layer steel wires are braided and twisted outside the core wire steel wires, and the diameter of each outer layer steel wire is D2;
wherein the surface of the core wire is configured with a tooth-shaped structure which is uniformly distributed along the circumferential direction of the core wire and extends along the axial direction of the core wire.
Preferably, D1 and D2 are in the range of 0.20 to 0.45 mm.
Preferably, the difference between D1 and D2 ranges from 0.028 to 0.048 mm.
Preferably, gaps are arranged among six outer layer steel wires.
Preferably, the tensile strength of the core wire steel wire is 2900 to 3100mpa.
Preferably, the tensile strength of at least one of the outer layer steel wires is 3000-3300 mpa.
Preferably, the strength of the core wire steel wire is 91% -95% of the strength of the outer layer steel wire.
Preferably, the lay length of the outer layer steel wire is 16-18mm, and the lay direction of the outer layer steel wire is S direction.
Compared with the prior art, the utility model has the advantages that:
the breaking force of the steel cord is obviously improved, the linear density is reduced, the rolling resistance of the tire is reduced, the oil consumption is saved, the glue seepage amount is obviously improved, the contact between steel wires is less, the friction is low, and therefore the steel cord with better glue seepage performance has better fatigue resistance and the service life of the tire is long.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a prior art 1+6 steel cord construction;
fig. 2 is a schematic view of a steel cord structure for enhancing the glue permeability according to the present utility model.
Detailed Description
For a better understanding of the technical content of the present utility model, specific examples are set forth below, along with the accompanying drawings.
In combination with the illustration of fig. 1, the 1+6 steel cord structure in the prior art has small gap between the outer steel wires and low breaking force, and when the steel cord structure is used for reinforcing a lighter tire, the steel cord is easy to puncture in the rolling process of the tire, so that the service life of the tire is short and the tire is scrapped. Therefore, in combination with the illustration of fig. 2, the steel cord for enhancing the rubber permeability provided by the utility model aims to improve the rubber permeability between steel wires, and has the advantages of low contact between the steel wires and low friction. Therefore, the steel cord with better glue seepage performance has better fatigue resistance and long service life of the tire.
Referring to fig. 2, the utility model provides a steel cord for enhancing the glue permeability, which comprises a core wire steel wire 1 and six outer layer steel wires 2, wherein the six outer layer steel wires 2 are braided and twisted outside the core wire steel wire 1, the diameter of the core wire steel wire 1 is D1, and the diameter of the outer layer steel wire 2 is D2.
In order to increase the glue penetration capability of the steel cord, the surface of the core wire steel wire 1 is configured with a tooth-shaped structure which is uniformly distributed along the circumferential direction of the core wire steel wire 1 and extends along the axial direction of the core wire steel wire 1.
In a specific embodiment, when the core wire steel wire 1 is used for drawing monofilaments, two gears are adopted for rolling to enable the surfaces of the steel wires to form a tooth-shaped structure, gaps between the core wire steel wire 1 and the outer layer steel wire 2 can be increased through the tooth-shaped structure, gaps are reserved between the core wire steel wire 1 and the outer layer steel wire 2 and between the outer layer steel wire 2 and the outer layer steel wire 2, so that the rubber permeation performance of the steel wires is higher, rubber and the core wires are bonded to a certain extent, when the tire rolls, the phenomenon of core wire steel wire puncture and the improvement of the rubber permeation rate of the steel cord are avoided, and the service life of the steel cord and the tire reinforced by the steel cord is prolonged.
Preferably, D1 and D2 are in the range of 0.20 to 0.45mm, and the difference between D1 and D2 is in the range of 0.028 to 0.048 mm. The tensile strength of the core wire 1 is 2900 to 3100mpa. And the tensile strength of at least one outer layer steel wire 2 is 3000-3300 mpa.
The strength of the core wire steel wire 1 is 91% -95% of the strength of the outer layer steel wire 2, and the high-strength steel wire in the range of the section has high strength and good fatigue performance of the cord, so that the service life of the tire is prolonged.
In an alternative embodiment, the lay length of the outer layer steel wire 2 is 16-18mm, and the lay direction of the outer layer steel wire 2 is the S direction.
In a specific example, the diameter of the core wire 1 is 0.36mm and the diameter of the outer layer wire 2 is 0.325mm, and the test data obtained are as follows.
| Prior Art | The steel cord of this embodiment | |
| Tensile Strength of core wire Steel wire | 2700 | 3000 |
| Strength of upper thread steel wire | 2850 | 3100 |
| Core wire steel wire pre-deformation | Whether or not | Is that |
| Pre-deformation of upper thread steel wire | Whether or not | Is that |
| Breaking force | 1890 | 2010 |
| Diameter (mm) | 1.03 | 1.02 |
| Linear density (g/m) | 5.00 | 4.71 |
| Steel cord lay length (mm) | 12.5 | 16 |
| Direction of twist | S | S |
| Rubber penetration rate of rubber | 50％ | 100％ |
| Tyre puncture | Has the following components | Without any means for |
| Weight reduction per layer of tire | 0％ | 2％ |
The steel cord has the advantages that the breaking force of the steel cord is obviously improved, the linear density is reduced, the rolling resistance of the tire is reduced, the oil consumption is saved, the glue seepage amount is obviously improved, the contact between steel wires is less, the friction is low, and therefore the steel cord with better glue seepage performance has better fatigue resistance and the service life of the tire is long.
While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.
Claims (5)
1. A steel cord for enhancing the rubber penetration, comprising:
a core wire steel wire (1), the diameter of the core wire steel wire (1) is D1;
six outer layer steel wires (2) are braided and twisted outside the core wire steel wires (1), and the diameter of the outer layer steel wires (2) is D2;
wherein the surface of the core wire steel wire (1) is configured to have a tooth-shaped structure which is uniformly distributed along the circumferential direction of the core wire steel wire (1) and extends along the axial direction of the core wire steel wire (1);
the six outer layer steel wires (2) are provided with gaps, D1 and D2 are in the range of 0.20-0.45 mm, and the difference value between D1 and D2 is in the range of 0.028-0.048 mm.
2. The steel cord for reinforcing glue permeation according to claim 1, characterized in that the tensile strength of the core wire steel wire (1) is 2900-3100 mpa.
3. Steel cord for reinforcing glue permeation according to claim 1, characterized in that at least one of said outer layer steel wires (2) has a tensile strength of 3000-3300 mpa.
4. Steel cord for reinforcing glue permeation according to claim 1, characterized in that the strength of the core wire steel wire (1) is 91% to 95% of the strength of the outer layer steel wire (2).
5. Steel cord for reinforcing glue permeation according to claim 1, characterized in that the lay length of the outer layer steel wire (2) is 16-18mm and the lay direction of the outer layer steel wire (2) is S-direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321517034.9U CN220183680U (en) | 2023-06-14 | 2023-06-14 | Steel cord for enhancing glue permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321517034.9U CN220183680U (en) | 2023-06-14 | 2023-06-14 | Steel cord for enhancing glue permeability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220183680U true CN220183680U (en) | 2023-12-15 |
Family
ID=89114373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321517034.9U Active CN220183680U (en) | 2023-06-14 | 2023-06-14 | Steel cord for enhancing glue permeability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220183680U (en) |
-
2023
- 2023-06-14 CN CN202321517034.9U patent/CN220183680U/en active Active
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