CN202518041U - Tire bead wire - Google Patents
Tire bead wire Download PDFInfo
- Publication number
- CN202518041U CN202518041U CN2012201947772U CN201220194777U CN202518041U CN 202518041 U CN202518041 U CN 202518041U CN 2012201947772 U CN2012201947772 U CN 2012201947772U CN 201220194777 U CN201220194777 U CN 201220194777U CN 202518041 U CN202518041 U CN 202518041U
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- CN
- China
- Prior art keywords
- bead wire
- tire bead
- wire
- tire
- steel bead
- 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.)
- Expired - Fee Related
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- Tires In General (AREA)
Abstract
The utility model provides a tire bead wire. The tire bead wire comprises a wire core and a copper tin alloy plating which is positioned on the external side of the wire core, wherein the thickness of the copper tin alloy plating is 0.05-0.19 microns; and the diameter of the tire bead wire is 1.2-1.5 mm. According to the utility model, as the copper tin alloy plating is arranged on the external side of the wire core and better binding power between the copper tin alloy plating and a rubber is obtained, the tensile strength of the tire bead wire can be enhanced, the usage of the tire bead wires can be also reduced on the basis of enhancing total strength, the total weight of a tire is reduced, energy is saved and consumption is reduced.
Description
Technical field
The utility model relates to a kind of steel bead wire that is used in the place, rim of the mouth of tire.
Background technology
In the prior art, the tyre bead of motor tire is made up of steel bead wire and chafer etc., and it can bear the expansion force that produces because of interior pressure, can also overcome simultaneously tire turn round go in suffered transverse force effect, make that cover tire is unlikely deviates from wheel rim.Steel bead wire is as a kind of framework material of tire; Therefore its performance quality directly affects the quality of tire, requires it to have good mechanical performance, shop characteristic and with rubber higher bonding characteristic is arranged, and it must have very high brute force; Structure should be closely firm, is difficult for deforming.In car running process; Tire bead and tyre bead edge are stressed very big; And ordinary steel wire and the rubber bound power generally used in the prior art are little, and steel bead wire and rubber adhesion power are little, directly can have influence on the torsional strength and the fatigue resistance of tyre bead; Therefore the tyre bead torsional strength and the fatigue resistance of this ordinary steel wire making are relatively poor, and the service life of tire is also shorter.
Summary of the invention
The purpose of the utility model is to provide a kind of steel bead wire, and it can have better cohesive force with rubber, and then improves the torsional strength and the fatigue resistance of tyre bead.
The purpose of the utility model realizes through following technical scheme: a kind of steel bead wire, and the cu-sn alloy coating that it comprises a core and is positioned at the described silk core outside, the thickness of described cu-sn alloy coating is 0.05 ~ 0.19 μ m.
Further, the diameter of described steel bead wire is 1.2 ~ 1.5mm.
Further, the thickness of described cu-sn alloy coating is 0.15 μ m.
Preferably, the carbon content of described silk core is 0.70～0.85%, the tensile strength>=2500Mpa of this steel bead wire; Percentage elongation is 3～6%, yield tensile ratio 95～98%, number of torsions>=25 time/360 °; Binding power>=the 1000N/50mm of steel bead wire and rubber, grazing≤400mm/3m.Grazing is meant that the long steel wire of 3m is placed on natural camber on the plane, and the line between the two-end-point is apart from the vertical dimension of arc vertex.
Owing to adopted technique scheme; Make and the utlity model has following advantage: owing to adopted the structure that cu-sn alloy coating is set outside the silk core; Because cu-sn alloy coating and rubber have better cohesive force, can improve the tensile strength of steel bead wire, on the basis of improving resulting intensity, can also reduce the usage quantity of steel bead wire; Alleviate the total weight of tire, energy-saving and cost-reducing.
Description of drawings
Fig. 1 is the section drawing of the steel bead wire of the utility model.
Wherein: 1, silk core; 2, cu-sn alloy coating.
The specific embodiment
As shown in Figure 1, a kind of steel bead wire, the cu-sn alloy coating 2 that it comprises a core 1 and is positioned at described silk core 1 outside; The cross section of steel bead wire is circular; The thickness of described cu-sn alloy coating 2 is 0.05 ~ 0.19 μ m, and preferably, the thickness of described cu-sn alloy coating is 0.15 μ m.Wherein the tin content in the cu-sn alloy coating is between 0.3～13%, and the diameter of described steel bead wire is 1.2 ~ 1.5mm.
Say that further the carbon content of described silk core 1 is 0.70～0.85%, the tensile strength>=2500Mpa of this steel bead wire; Percentage elongation is 3～6%, yield tensile ratio 95～98%, number of torsions>=25 time/360 °; Binding power>=the 1000N/50mm of steel bead wire and rubber, grazing≤400mm/3m.
Before coating, at first Steel Wire Surface is carried out pre-processing, if do not clean the silk wicking surface, cause coating coarse easily, produce blackspot, grow dim, cause some row problems such as steel bead wire and rubber binding force difference.Behind the coating, steel bead wire is through behind the coating, and its non-corrodibility is enhanced.
Claims (3)
1. steel bead wire is characterized in that: the cu-sn alloy coating that it comprises a core and is positioned at the described silk core outside, the thickness of described cu-sn alloy coating is 0.05 ~ 0.19 μ m.
2. steel bead wire according to claim 1 is characterized in that: the diameter of described steel bead wire is 1.2 ~ 1.5mm.
3. steel bead wire according to claim 1 is characterized in that: the thickness of described cu-sn alloy coating is 0.15 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201947772U CN202518041U (en) | 2012-05-03 | 2012-05-03 | Tire bead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201947772U CN202518041U (en) | 2012-05-03 | 2012-05-03 | Tire bead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202518041U true CN202518041U (en) | 2012-11-07 |
Family
ID=47101003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201947772U Expired - Fee Related CN202518041U (en) | 2012-05-03 | 2012-05-03 | Tire bead wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202518041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114401851A (en) * | 2019-09-18 | 2022-04-26 | 米其林集团总公司 | Bead wire comprising rubber-coated coil |
-
2012
- 2012-05-03 CN CN2012201947772U patent/CN202518041U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114401851A (en) * | 2019-09-18 | 2022-04-26 | 米其林集团总公司 | Bead wire comprising rubber-coated coil |
| CN114401851B (en) * | 2019-09-18 | 2023-09-15 | 米其林集团总公司 | Bead wire comprising rubber coated coils |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20160503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |