CN217997651U - Ultra-high strength steel cord - Google Patents
Ultra-high strength steel cord Download PDFInfo
- Publication number
- CN217997651U CN217997651U CN202222387963.4U CN202222387963U CN217997651U CN 217997651 U CN217997651 U CN 217997651U CN 202222387963 U CN202222387963 U CN 202222387963U CN 217997651 U CN217997651 U CN 217997651U
- Authority
- CN
- China
- Prior art keywords
- high strength
- core
- steel cord
- 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.)
- Active
Links
Images
Landscapes
- Tires In General (AREA)
- Ropes Or Cables (AREA)
Abstract
The utility model discloses an extra-high strength steel cord, which comprises a core strand and an outer layer strand, wherein the core strand consists of two core steel wires without weaving and twisting; the outer layer strand is formed by twisting two face steel wires around the core strand; the diameters of the core steel wire and the face steel wire are the same; the ultra-high strength steel cord is used in a radial tire carcass or a belted layer, and the fatigue resistance of the tire can be greatly improved due to the good rubber permeability of the ultra-high strength steel cord; compared with the conventional 2+2 multiplied by 0.25HT structural steel cord, the cord fabric strength index of the extra-high strength steel cord is increased, and under the condition of equal cord fabric strength, the cord fabric weight index of the extra-high strength steel cord is reduced, so that the using amount of the extra-high strength steel cord and rubber is reduced by 5.8%, the light weight of the tire can be realized, the rolling resistance of the tire is reduced, the comprehensive performance of the tire is improved, and the production and manufacturing cost of the tire is reduced.
Description
Technical Field
The utility model relates to a steel cord technical field specifically is an extra-high strength steel cord.
Background
The steel cord is used as the reinforcing material of automobile tyre and may be used as steel cord or used directly in the tyre body. When the high-strength steel cord in the prior art is used for automobile tires, the automobile tires are heavy, the rolling resistance is high, the service life is short, and the production and manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a super high strength steel cord to when solving prior art high strength steel cord and being used for automobile tire, automobile tire is heavier, rolling resistance is higher, life is shorter, and the high problem of manufacturing cost.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an extra-high strength steel cord, which comprises a core strand and an outer layer strand, wherein the core strand consists of two core steel wires without weaving and twisting; the outer layer strand is formed by twisting two face steel wires around the core strand; the core steel wires and the face steel wires have the same diameter.
Furthermore, the diameter of the core steel wire and the surface steel wire is 0.175-0.400 mm.
Further, the diameters of the core steel wire and the face steel wire are both 0.250mm.
Furthermore, the twisting direction of the steel wires on the two surfaces of the outer layer strand is S twisting.
Furthermore, the lay length of the steel wires on the two surfaces of the outer layer strand is 14.0mm.
Furthermore, the tensile strength of the core steel wires and the face steel wires is (4350-2000) × dMPa, wherein d is the diameter of the core steel wires (1) and the face steel wires (2); (4350-2000) × d MPa equals 2350 × d MPa.
Compared with the prior art, the beneficial effects of the utility model are that:
the ultra-high strength steel cord provided by the utility model is used in radial tire carcass or belted layer, and the anti-fatigue performance of the tire can be greatly improved because the ultra-high strength steel cord has good rubber permeability; compared with the conventional 2+2 x 0.25HT structural steel cord, the cord fabric strength index of the extra-high strength steel cord is increased, and under the condition of equal cord fabric strength, the cord fabric weight index of the extra-high strength steel cord is reduced, so that the use amount of the extra-high strength steel cord and rubber is reduced by 5.8%, the light weight of the tire can be realized, the rolling resistance of the tire is reduced, the comprehensive performance of the tire is improved, and the production and manufacturing cost of the tire is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an extra-high strength steel cord provided by an embodiment of the present invention.
In the figure: 1-core steel wire and 2-face steel wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the extra-high strength steel cord provided by the embodiment of the present invention comprises a core strand and an outer strand, wherein the core strand is composed of two core steel wires 1, no twisting is performed, and the two core steel wires 1 are approximately parallel; the outer layer strand is formed by weaving and twisting two face steel wires 2 around the core strand; the core steel wires 1 and the face steel wires 2 have the same diameter.
The diameters of the core steel wire 1 and the face steel wire 2 are 0.175-0.400 mm.
The core wire 1 and the face wire 2 each have a diameter of 0.250mm.
The twisting direction of the two face steel wires 2 of the outer layer strand is S twisting.
The lay length of the two face steel wires 2 of the outer layer strand which are twisted is 14.0mm.
The tensile strength of the core steel wire 1 and the surface steel wire 2 is (4350-2000) × d MPa, wherein d is the diameter of the core steel wire (1) and the surface steel wire (2).
Example 1
An ultra-high strength steel cord comprises a core strand and an outer layer strand, wherein the core strand consists of two core steel wires 1 and is free of weaving and twisting; the outer layer strand is formed by weaving and twisting two face steel wires 2 around the core strand; the diameters of the core steel wire 1 and the face steel wire 2 are the same and are 0.250mm; the twisting direction of the two surface steel wires 2 of the outer layer strand is S twisting; the twisting distance of the two face steel wires 2 of the outer layer strand is 14.0mm; the extra-high strength steel cord is 2+2 multiplied by 0.25UT structural steel cord.
Table 1 is a table comparing the performance indexes of 2+2 × 0.25HT structural steel cord and 2+2 × 0.25UT structural steel cord of the embodiment 1 of the present invention:
TABLE 1
| |
2+2×0.25 |
2+2×0.25HT |
| Cord diameter (mm) | 0.65 | 0.65 |
| Lay length (mm) | ∞/14.0 | ∞/14.0 |
| Direction of twist | -/S | -/S |
| Linear density (g/m) | 1.55 | 1.55 |
| Break force (N) | 680 | 570 |
| Curtain cloth strength (N/dm) | 48960 | 41040 |
| Cord fabric weight index (%) | 94.2 | 100 |
The ultra-high strength steel cord is used in a radial tire carcass or a belt layer, and the anti-fatigue performance of the tire can be greatly improved due to the good rubber permeability of the ultra-high strength steel cord; compared with the conventional 2+2 x 0.25HT structural steel cord, the cord fabric strength index of the extra-high strength steel cord is increased, and under the condition of equal cord fabric strength, the cord fabric weight index of the extra-high strength steel cord is reduced, so that the use amount of the extra-high strength steel cord and rubber is reduced by 5.8%, the light weight of the tire can be realized, the rolling resistance of the tire is reduced, the comprehensive performance of the tire is improved, and the production and manufacturing cost of the tire is reduced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An ultra-high strength steel cord is characterized by comprising a core strand and an outer layer strand, wherein the core strand consists of two core steel wires (1) and is free of weaving and twisting; the outer layer strand is formed by weaving and twisting two face steel wires (2) around the core strand; the core steel wire (1) and the face steel wire (2) have the same diameter.
2. An extra high strength steel cord according to claim 1, characterized in that said core steel filaments (1) and face steel filaments (2) have a diameter of 0.175 to 0.400mm.
3. A super high strength steel cord according to claim 1 or 2, characterized in that said core steel wire (1) and face steel wire (2) are each 0.250mm in diameter.
4. An extra high strength steel cord according to claim 1, characterized in that said outer strand two face steel wires (2) are twisted with S twist.
5. An extra high strength steel cord according to claim 1, characterized in that said outer ply two face steel wires (2) are twisted with a lay length of 14.0mm.
6. An extra high strength steel cord according to claim 1, characterized in that the tensile strength of said core steel filaments (1) and face steel filaments (2) is (4350-2000) × d MPa, where d is the diameter of the core steel filaments (1) and face steel filaments (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222387963.4U CN217997651U (en) | 2022-09-08 | 2022-09-08 | Ultra-high strength steel cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222387963.4U CN217997651U (en) | 2022-09-08 | 2022-09-08 | Ultra-high strength steel cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217997651U true CN217997651U (en) | 2022-12-09 |
Family
ID=84289154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222387963.4U Active CN217997651U (en) | 2022-09-08 | 2022-09-08 | Ultra-high strength steel cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217997651U (en) |
-
2022
- 2022-09-08 CN CN202222387963.4U patent/CN217997651U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102066653B (en) | Steel cord for reinforcing rubber article and adopt the pneumatic tire of this all-steel cord | |
| JP5883898B2 (en) | Steel cord for tire reinforcement and radial tire using the same | |
| KR0134085B1 (en) | Pneumatic radial tires | |
| US20040221937A1 (en) | Ply with strength carriers embedded in a rubber mixture and vehicle pneumatic tires with a belt bandage thereof | |
| CN105392638A (en) | Stud pin, and pneumatic tire | |
| US20050133140A1 (en) | Steel cord having ultrafine steel filaments to reinforce tire carcass and radial tire for passenger car using the same | |
| EP1314812A2 (en) | Metal cord and pneumatic tire including the same | |
| CN217997651U (en) | Ultra-high strength steel cord | |
| US6425428B1 (en) | Steel cord having flat side surface portion, method of manufacturing same, and pneumatic tire reinforced with same | |
| CN111535062A (en) | Steel wire cord for 1+ 7-ply radial tire | |
| CN217997652U (en) | 2+4 extra-high strength steel cord for tyre | |
| CN217419126U (en) | Compact steel cord with 2+ N structure | |
| CN203462221U (en) | High-tensile steel wire cord for tubeless all-steel truck radical tire | |
| CN211571181U (en) | Seventeen-ply radial tire steel wire cord | |
| CN113293632A (en) | Compact steel cord with 2+ M + N structure and manufacturing method thereof | |
| CN113550037A (en) | Nylon cord and tire thereof | |
| CN209162497U (en) | A kind of engineering steel cord with strong Fracture Force and strong fatigue durability | |
| CN209975234U (en) | Layered interactive twisting steel wire cord | |
| CN218893891U (en) | Small lay length steel cord structure based on four strands of strands | |
| CN210394967U (en) | Steel cord for semisteel meridian | |
| CN201857470U (en) | Belted layer of all-steel radial truck tire | |
| JP2013193548A (en) | Pneumatic radial tire, and polyethylene terephthalate fiber cord used therein | |
| CN215826394U (en) | Low-rolling-resistance tire | |
| JP2013189734A (en) | Rubber-reinforcing flat cord | |
| CN211570920U (en) | Steel cord with 11 x 27 structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |