CN115182185A - Polygonal structure steel wire cord - Google Patents
Polygonal structure steel wire cord Download PDFInfo
- Publication number
- CN115182185A CN115182185A CN202210839684.9A CN202210839684A CN115182185A CN 115182185 A CN115182185 A CN 115182185A CN 202210839684 A CN202210839684 A CN 202210839684A CN 115182185 A CN115182185 A CN 115182185A
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- China
- Prior art keywords
- steel
- wires
- steel wire
- cord
- steel wires
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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
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
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- 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
- D07B2201/1012—Rope or cable structures characterised by their internal structure
- D07B2201/102—Rope or cable structures characterised by their internal structure including a core
-
- 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
- D07B2201/1024—Structures that change the cross-sectional shape
-
- 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
- D07B2201/1028—Rope or cable structures characterised by the number of strands
- D07B2201/1032—Rope or cable structures characterised by the number of strands three to eight strands respectively forming a single layer
-
- 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
- D07B2201/1076—Open winding
-
- 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
- D07B2201/2006—Wires or filaments characterised by a value or range of the dimension 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
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2059—Cores characterised by their structure comprising wires
- D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
-
- 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
Landscapes
- Ropes Or Cables (AREA)
Abstract
The invention discloses a polygonal-structure steel cord in the technical field of steel cords, and aims to solve the problem that rubber viscous fluid cannot permeate into strand steel wires due to too tight connection between steel wires of the steel cord in the prior art. The steel wire core strand comprises three first steel wires which are formed by weaving and twisting, the outer layer steel wire comprises fifteen second steel wires which are formed by weaving and twisting, gaps exist between every two adjacent second steel wires, and the outer layer steel wire comprises three second steel wires which are tangent to any two adjacent first steel wires in the steel wire core strand; the invention is suitable for tire manufacturing, can change the structure of the steel wire cord, and rubber viscous fluid can fully permeate and embed around each steel wire cord steel wire through the gap between the steel wire cords, thereby improving the stability and the anchoring property of the steel wire cord structure.
Description
Technical Field
The invention relates to a steel cord with a polygonal structure, belonging to the technical field of steel cords.
Background
The steel wire cord is an important component in the framework material of the radial tire, and the compact steel wire cord is widely manufactured and applied at present. The prior art compact steel filament cords form a compact cross-sectional configuration by accommodating a large number of filaments over a limited cross-section. The tight steel wire cord steel wires are arranged too tightly between layers, so that rubber viscous fluid cannot permeate into the steel wires at the middle layer of the steel wire cord when the tight steel wire cord is vulcanized with rubber, the air content at the inner layer of the steel wire cord is high due to low rubber permeation rate, the wing adhesion retention force with corrosion resistance, fatigue resistance and impact resistance of the steel wire cord is reduced, and the service life of the tire is influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a steel wire cord with a polygonal structure, and solves the problem that the steel wires of the steel wire cord are too tight, and rubber viscous fluid cannot permeate into strand steel wires to cause high internal air content in the steel wire cord.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
the invention provides a polygonal structure steel wire cord which comprises strand steel wires, wherein the strand steel wires comprise core strand steel wires and outer layer steel wires, the outer layer steel wires are twisted along the core strand steel wires and are uniformly distributed on the periphery of the core strand steel wires, the core strand steel wires comprise three first steel wires, the outer layer steel wires comprise at least fifteen second steel wires, gaps exist between the adjacent second steel wires, and the outer layer steel wires comprise three second steel wires which are tangent to any two adjacent first steel wires in the core strand steel wires.
Furthermore, the first steel wire comprises three third steel wires which are woven and twisted.
Further, the first steel wire twisting direction is the same as the core strand steel wire twisting direction.
Further, the first steel wire lay length is 0.5 times of the core strand steel wire lay length.
Furthermore, the twisting direction of the outer layer steel wires is the same as that of the core strand steel wires, the twisting pitch of the outer layer steel wires is equal to that of the core strand steel wires, and the twisting pitch of the outer layer steel wires is 15-23 mm.
Furthermore, the diameter of the third steel wire is the same as that of the second steel wire, and the diameter of the second steel wire is 0.17-0.415 mm.
Further, an outer winding steel wire is wound on the periphery of the strand steel wire.
Further, the twisting direction of the outer winding steel wire is opposite to that of the strand steel wire.
Further, the cross section of the strand steel wire is in a polygonal structure.
Further, the gap is at least 0.02mm.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the structure of the steel cord is changed, so that gaps exist among every two second steel wires, and when rubber is vulcanized, rubber viscous fluid can fully permeate and embed around every steel wire of the steel cord through the gaps among the steel wires of the steel cord, so that the permeability of the rubber is greatly improved, the stability and the anchorage of the steel cord structure are effectively improved, and the improvement of the rubber coating performance can improve the corrosion resistance, the fatigue resistance, the impact resistance and the adhesion retention of the tire;
2. according to the invention, the three second steel wires are tangent to any two adjacent first steel wires, so that the strand steel wires have a stable polygonal structure, the strength of the strand steel wires is increased, and the compact and stable polygonal structure is formed.
Drawings
FIG. 1 is a schematic cross-sectional view of a steel cord with an outer-wound steel filament provided according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a steel cord without steel filaments being wrapped according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a first prior art structural steel cord;
fig. 4 is a schematic cross-sectional view of a second prior art structural steel cord.
In the figure: 10. core strand steel wire; 11. a first steel wire; 12. a third steel wire; 20. an outer layer steel wire; 21. a second steel wire; 30. strand wires; 40. and (5) winding steel wires outside.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-2, the present invention provides a steel cord with a polygonal structure, which includes strand wires 30, wherein the strand wires 30 include core strand wires 10 and outer layer wires 20, the outer layer wires 20 are twisted along the core strand wires 10 and are uniformly distributed on the periphery of the core strand wires 10, the core strand wires 10 include three first wires 11, the outer layer wires 20 include at least fifteen second wires 21, gaps exist between the adjacent second wires 21, and the outer layer wires 20 include three second wires 21 tangent to any two adjacent first wires 11 of the core strand wires 10; the first steel wire 11 comprises three third steel wires 12 which are woven and twisted; the twisting direction of the first steel wire 11 is the same as that of the core strand steel wire 10; the first steel wire 11 has a lay length 0.5 times that of the core strand steel wire 10; the twisting direction of the outer layer steel wires 20 is the same as that of the core strand steel wires 10, the twisting distance of the outer layer steel wires 20 is equal to that of the core strand steel wires 10, and the twisting distance of the outer layer steel wires 20 is 15-23 mm; the diameter of the third steel wire 12 is the same as that of the second steel wire 21, and the diameter of the second steel wire 21 is 0.17-0.415 mm; the cross-section of the strand wires 30 is a polygonal structure, and the gap is at least 0.02mm.
Specifically, the lay length of the first steel wire 11 is 0.5 times of the lay length of the core strand steel wire 10, so that the contact area between the first steel wire and the core strand steel wire is increased, the point contact friction between the first steel wire and the core strand steel wire is reduced, and the bearing capacity of the steel wire cord is ensured; according to the invention, by changing the structure of the steel wire cord, a gap is formed between each second steel wire 21 and a gap is also formed between the second steel wire and the core strand steel wire 10, so that when rubber is vulcanized, rubber viscous fluid can fully permeate and embed to the periphery of each steel wire cord through the gaps between the steel wires of the steel wire cord, the infiltration performance of the rubber is greatly improved, the stability and the anchoring performance of the steel wire cord structure are effectively improved, and the corrosion resistance, the fatigue resistance, the impact resistance and the adhesion retention of the tire can be improved by improving the rubber coating performance; meanwhile, the three second steel wires 21 are tangent to any two adjacent first steel wires 11, so that the strand steel wires 30 have a stable polygonal structure, the strength of the strand steel wires is increased, the compact and stable polygonal structure is formed, the structure is low in linear density and high in strength, the requirement for lightweight development of tires is met, the production cost of the tires can be effectively reduced, the working effect of the tire is guaranteed, the gap is at least 0.02mm, and the influence on the infiltration performance of rubber is avoided.
In an embodiment, the strand wires 30 are peripherally wound with the outer-wound wires 40, and the outer-wound wires 40 are twisted in a direction opposite to the direction in which the strand wires 30 are twisted.
Optionally, the lay length of the over-wound steel wire 40 ranges from 3.5 mm to 5mm, and the diameter of the over-wound steel wire 40 ranges from 0.15mm to 0.25mm.
The first embodiment is as follows:
according to fig. 1 to 4, in the present embodiment, the pitch of the outer layer steel wires 20 and the pitch of the core strand steel wires 10 are both 16mm, the core strand steel wires 10 are formed by twisting three first steel wires 11, the first steel wires 11 have the same direction as the core strand steel wires 10, the first steel wires 11 have a pitch 0.5 times that of the core strand steel wires 10, the second steel wires 21 and the third steel wires 12 have a diameter 0.175mm, and the outer wrap steel wires 40 have a diameter 0.15mm.
Table 1 is a table comparing performance indexes of the first prior art steel cord with those of the present invention in which the steel cord is not externally wound with the steel wire 40 and those of the present invention in which the steel wire 40 is externally wound.
TABLE 1
Wherein, fig. 1 is a schematic cross-sectional view of a steel cord of the present invention having an outer-wound steel wire 40 wound therearound, fig. 2 is a schematic cross-sectional view of a steel cord of the present invention having no outer-wound steel wire 40 wound therearound, and fig. 3 is a schematic cross-sectional view of a first prior art steel cord; the comparison shows that the rubber permeability of the steel cord provided by the invention is superior to that of the first prior art, and the stability and the anchoring property of the steel cord structure are effectively improved.
The second embodiment:
according to fig. 1 to 4, in the present embodiment, the pitch of the outer layer steel wires 20 and the pitch of the core strand steel wires 10 are 18mm, the core strand steel wires 10 are formed by twisting three first steel wires 11, the first steel wires 11 have the same direction as the core strand steel wires 10, the first steel wires 11 have a pitch 0.5 times that of the core strand steel wires 10, the second steel wires 21 and the third steel wires 12 have a diameter 0.22mm, and the outer wrap steel wires 40 have a diameter 0.15mm.
Table 2 is a comparison table of performance indexes of the first prior art steel cord, the steel cord without the outer-wrapped steel wire 40 of the present invention, and the steel cord with the outer-wrapped steel wire 40 of the present invention.
TABLE 2
Wherein, fig. 1 is a schematic cross-sectional view of a steel cord of the present invention with an outer-wound steel wire 40 wound therearound, fig. 2 is a schematic cross-sectional view of a steel cord of the present invention without an outer-wound steel wire 40 wound therearound, and fig. 3 is a schematic cross-sectional view of a first prior art steel cord; the comparison shows that the rubber permeability of the steel cord provided by the invention is superior to that of the first prior art, and the stability and the anchoring property of the steel cord structure are effectively improved.
Example three:
according to fig. 1 to 4, in this embodiment, the pitch of the outer layer steel wires 20 and the pitch of the core strand steel wires 10 are 18mm, the core strand steel wires 10 are formed by twisting three first steel wires 11, the first steel wires 11 have the same direction as the core strand steel wires 10, the first steel wires 11 have a pitch 0.5 times that of the core strand steel wires 10, the second steel wires 21 and the third steel wires 12 have a diameter 0.245mm, and the outer wrap steel wires 40 have a diameter 0.15mm.
Table 3 is a table comparing performance indexes of the second prior art steel cord with the steel cord of the present invention without the outer-wound steel wire 40 at the periphery and the steel cord of the present invention with the outer-wound steel wire 40 at the periphery.
TABLE 3
Wherein, fig. 1 is a schematic cross-sectional view of a steel cord of the present invention, the outer periphery of which is wrapped with an outsourcing steel wire 40, fig. 2 is a schematic cross-sectional view of a steel cord of the present invention, the outer periphery of which is not wrapped with an outsourcing steel wire 40, and fig. 3 is a schematic cross-sectional view of a second prior art steel cord; the comparison shows that the rubber permeability of the steel cord provided by the invention is superior to that of the first prior art, and the stability and the anchoring property of the steel cord structure are effectively improved.
In the rubber permeation test in tables 1 to 3, the lower the pressure drop, the better the permeation performance, and the pressure drop of 0% is the complete permeation.
As can be seen from the data detected in tables 1 to 3, gaps exist between each second steel wire 21 in the steel cord of the present invention, so that rubber can fully penetrate and be embedded around each steel cord steel wire (including the first steel wire 11, the second steel wire 21 and the third steel wire 12) through the gaps between the steel cord steel wires during vulcanization, the rubber coating rate reaches 80%, rubber viscous fluid penetrates into the gaps between the steel cord steel wires of the steel cord, and the rubber viscous fluid penetrates into the pores between the steel cord steel wires of the steel cord, so that rubber is coated around each steel cord steel wire, the compactness is formed, the invasion of water vapor can be avoided, the corrosion resistance, fatigue resistance, impact resistance and adhesion retention of the steel cord in the tire are improved, and the service life of the tire is effectively prolonged.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a polygonal structure steel cord, characterized in that, includes strand wires (30), strand wires (30) include core strand wires (10) and outer layer wires (20), outer layer wires (20) along core strand wires (10) are compiled and are twisted with fingers, and evenly distributed is in the periphery of core strand wires (10), core strand wires (10) are compiled and are twisted with fingers including three first steel wires (11) and form, outer layer wires (20) are compiled and are twisted with fingers including fifteen second steel wires (21) at least and form, and is adjacent there is the clearance between second steel wires (21), outer layer wires (20) include three second steel wires (21) with arbitrary adjacent two in core strand wires (10) first steel wires (11) are tangent.
2. A polygonal-structured steel cord according to claim 1, characterized in that said first steel filaments (11) comprise three third steel filaments (12) braided.
3. A polygonal-structured steel cord according to claim 1, characterized in that said first steel filaments (11) are twisted in the same direction as said core strand steel filaments (10).
4. A polygonal-structured steel cord according to claim 3, characterized in that said first steel filaments (11) have a lay length 0.5 times that of said core strands of steel filaments (10).
5. A steel cord with a polygonal structure according to claim 1, wherein the outer layer (20) is twisted in the same direction as the core strand (10), and the outer layer (20) has a twist length of 15 to 23mm.
6. A polygonal steel cord according to claim 2, wherein the diameter of the third steel wire (12) is the same as that of the second steel wire (21), and the diameter of the second steel wire (21) is 0.17 to 0.415mm.
7. A polygonal-structured steel cord according to claim 1, wherein said strand wires (30) are externally wound with an outer-wound wire (40).
8. A steel cord of polygonal structure according to claim 7, wherein the twist direction of the over-wound steel wires (40) is opposite to the twist direction of the strand steel wires (30).
9. A steel cord of polygonal structure according to claim 1, characterized in that the cross-section of said strand wires (30) is of polygonal structure.
10. A polygonal-structured steel cord according to claim 1, wherein said gap is at least 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210839684.9A CN115182185A (en) | 2022-07-18 | 2022-07-18 | Polygonal structure steel wire cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210839684.9A CN115182185A (en) | 2022-07-18 | 2022-07-18 | Polygonal structure steel wire cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115182185A true CN115182185A (en) | 2022-10-14 |
Family
ID=83518878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210839684.9A Pending CN115182185A (en) | 2022-07-18 | 2022-07-18 | Polygonal structure steel wire cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115182185A (en) |
-
2022
- 2022-07-18 CN CN202210839684.9A patent/CN115182185A/en active Pending
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