CN103298996B - Compact steel cord - Google Patents
Compact steel cord Download PDFInfo
- Publication number
- CN103298996B CN103298996B CN201180064594.7A CN201180064594A CN103298996B CN 103298996 B CN103298996 B CN 103298996B CN 201180064594 A CN201180064594 A CN 201180064594A CN 103298996 B CN103298996 B CN 103298996B
- Authority
- CN
- China
- Prior art keywords
- steel cord
- diameter
- silk
- intermediate layer
- root
- 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
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
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
- D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
-
- 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
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
- D07B2201/2029—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
- D07B2201/2047—Cores
- D07B2201/2051—Cores 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
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/208—Enabling filler penetration
Abstract
A kind of steel cord (20) for strengthening elastomer product, comprises one and has core filament diameter D
0core silk (22), and around described core silk with identical sth. made by twisting to the 3N root layer silk (24,26) twisted with the identical lay pitch.The scope of N is from 4 to 5.The arrangement of 3N root layer silk is: have intermediate layer diameter D by N root
1monofilament (24) form intermediate layer, 2N root has outer diameter D
2monofilament (26) form outer, and steel cord (20) has following characteristics (D
0, D
1, D
2unit: mm): D
0≤ D
1aMP.AMp.Amp lt; D
2.
Description
Technical field
The present invention relates to the steel cord being applicable to strengthen elastomer product, be particularly useful for strengthening the medium-sized casingply arriving heavy truck and passenger vehicle radial tire.Steel cord comprises the core silk that has core filament diameter, and two-layer around core silk with identical sth. made by twisting to the layer silk twisted with the identical lay pitch.
Background technology
Such steel cord known in the state of the art, wherein, with identical sth. made by twisting to twisting together with the identical lay pitch by all steel wires; Because this steel cord can hold a large amount of steel wire in limited cross-sectional area, thus form cross-sectional configuration closely, therefore this steel cord is called as " Compact steel cord ".
In the grouping of Compact steel cord, structure is below widely used in strengthening in elastomeric field:
-1×d
c|18×d
lCC
-1×d
c|15×d
lCC
1 × d
c| 18 × d
lcC is a kind of tight type cord, comprises one and has core filament diameter d
ccore silk, and 18 have a layer filament diameter d
llayer silk, layer silk is arranged according to being made up of intermediate layer 6 steel wires and forming outer field mode by 12 steel wires.This kind of tight type cord is disclosed in patent EP-B1-0627520.Canonical form due to the cross section of this steel cord is Central Symmetry and highly stable regular hexagon, and therefore this tight type cord constitutes stable structure.
1 × d disclosed in patent WO-A1-03069055
c| 15 × d
lcC cord comprises the core silk that has core filament diameter, and 15 have layer filament diameter and the layer silk twisted around core silk.15 layer silks are arranged according to being made up of intermediate layer five steel wires and forming outer field mode by ten steel wires.
Core filament diameter is less than a layer filament diameter.Although it is not this structure is possible technically, always practical technically.Cross section due to cord has typical non-centrosymmetrical regular pentagon structure, and therefore this tight type cord does not always form stable structure, and it is easily subject to the interference of twisting machine and disequilibrium in the fabrication process.Converse or kink can be there is suddenly.In addition, CC structure that it is transformed into sometimes (1+4+11) or (1+6+9) CC structure, instead of (1+5+10) CC structure desired in describing above.This can make an explanation with explanation below: the 0.2+(5+10 for required) × 0.245mmCC structure, there is small gap " g " as shown in Figure 1a between adjacent monofilament.But, in construction process, form large gap " G " as shown in Figure 1 b when each micro gap pools together, and " G " even as big as allowing a rhizoid in intermediate layer to enter time, just create 0.2+(4+11 as illustrated in figure 1 c) × 0.245mmCC structure.Due to this undefined structure, rubber osmosis receives very large impact.Ten outer silks become so closely, to such an extent as to required rubber osmosis cannot be made to enter inside, which results in aqueous vapor and move along steel cord with along steel cord internal voids.Therefore, corrosion resistance is not fine.This mass defect of the steel cord caused due to structure itself cannot be avoided by adjustment technology parameter in the fabrication process.
Summary of the invention
The present invention is intended to the above-mentioned shortcoming avoiding prior art.
An object of the present invention is to provide a kind of stabilized steel cord structure with the anti-fatigue ability of acceptable level.
Another object of the present invention is to provide a kind of steel cord with good corrosion resistance.
According to the present invention, provide a kind of steel cord being applicable to strengthen elastomer product.This steel cord comprises one and has core filament diameter D
0core silk, and with identical sth. made by twisting to the 3N root layer silk twisted around core silk with the identical lay pitch, the scope of N is four to five.3N root layer silk arrangement is: have intermediate layer diameter D by N root
1steel wire form intermediate layer, by 2N root, there is outer diameter D
2steel wire form outer, and steel cord has following characteristic (D
0, D
1, D
2unit: mm):
D
0≤D
1<D
2
Cord of the present invention is a kind of tight type cord.This cord has good corrosion resistance, high breaking load and less diameter.
N is preferably five, this means that this steel cord comprises ten six roots of sensation silks.Five are better than four, this is because five rhizoids in intermediate layer fill intermediate layer in a stable manner better.
In the first preferred embodiment of the present invention, core silk and intermediate layer silk have identical diameter (D
0=D
1).First preferred embodiment also can meet following formula:
0.76<（D
0/D
2）<0.93。
Because diameter compares D
0/ D
2optimization, make via intermediate layer and outer and even to reach the rubber osmosis at center optimum, the expansion which ensure that very high corrosion stability and prevent corrosion possible.
In addition, by selecting diameter to compare D
0/ D
2above-mentioned scope, (1+5+10) CC structure of construction of stable is practical technically, thus avoids structure that is undesirable or instability.
The advantage that first embodiment also has only needs two kinds of different steel wire diameter.
In the second preferred embodiment of the present invention, core filament diameter D
0be less than intermediate layer diameter D
1.This second preferred embodiment also can meet following formula:
0.69<（D
0/D
1）<0.81；
0.59<（D
0/D
2）<0.73。
Because not only diameter compares D
0/ D
1optimization and diameter compare D
0/ D
2optimize, always desirable technically, because the rock-steady structure of good corrosion resistance can be there is like this.
Accompanying drawing explanation
The present invention will be described in more detail below with reference to the accompanying drawings:
Fig. 1 a, 1b and 1c are the varying cross-section figure of steel cord in construction process in prior art;
Fig. 2 is the cross-sectional view of the steel cord according to first embodiment of the invention;
Fig. 3 is the cross-sectional view of the steel cord according to second embodiment of the invention.
Detailed description of the invention
It is the cross-sectional view of the steel cord 10 of the first embodiment shown in Fig. 2.This steel cord comprises one and has core filament diameter D
0core silk 12.There is intermediate layer diameter D
1five intermediate layer silks 14 constitute intermediate layer around core silk 12.Diameter D
1with diameter D
0identical.There is outer diameter D
2ten outer silks 16 form skin around intermediate layer.All intermediate layers silk 14 twists to the identical lay pitch with identical sth. made by twisting with all outer silks 16, thus forms compact structure.
Core filament diameter D
0with outer filament diameter D
2also meet relational expression below:
0.76<（D
0/D
2）<0.93。
Adopt according to steel cord 10 of the present invention and manufacture with the following method.Raw material is steel wire rod.Steel wire rod has following composition of steel: minimum carbon content be 0.65%(such as, at least 0.80% or at least 0.92%, maximum 1.2%); Fe content scope is from 0.20% to 0.90%; Silicone content scope is from 0.15% to 0.90%; Maximum sulfur is 0.03%; Maximum phosphorus content is 0.30%; In order to reduce to obtain the deflection needed for predetermined tensile strength, additional elements such as chromium (reaching 0.2 to 0.4%), boron, copper, cobalt, nickel, vanadium can also be added All percentage is all percentage by weight.
Steel wire rod is drawn to required final diameter through multiple step in succession.The final diameter scope of steel wire is from 0.05mm to 0.60mm.When the casingply for strengthening tire, steel wire diameter preferable range is 0.05mm to 0.35mm.
One or more heat treatment step can be had, such as sorbitizing process between these drawing steps.
Steel wire preferably has the coating promoting rubber adhesion, or makes steel wire have corrosion proof coating.The coating of rubber adherable is such as brass; Anti-corrosion coating is such as zinc.
Suitable example according to the cord of first embodiment of the invention has:
0.18＋5×0.18＋10×0.215CC
0.19＋5×0.19＋10×0.23CC
0.21＋5×0.21＋10×0.25CC
It is the cross-sectional view of the steel cord 20 according to second embodiment of the invention shown in Fig. 3.Steel cord 20 comprises one and has core filament diameter D
0core silk 22.There is intermediate layer diameter D
1five intermediate layer silks 24 twist around core silk 22.There is outer diameter D
2outer silk 26 form skin around intermediate layer.
Core filament diameter D
0be less than intermediate layer diameter D
1, and diameter D
0, D
1, D
2meet following relation:
0.69<（D
0/D
1）<0.81；
0.59<（D
0/D
2）<0.73。
Compared with Fig. 2, diameter compares D
0/ D
2less.Because diameter compares D
0/ D
1and D
0/ D
2optimization, obtain rock-steady structure (1+5+10) CC, therefore avoid undesirable structure.
According to the degree of composition of steel used and final drawing, can make the steel cord of different stretch characteristic, scope is from common TENSILE STRENGTH to Ultra-Drawing intensity.
Tubular type twisting machine can be adopted according to steel cord of the present invention or preferably adopt the device fabrication of two sth. made by twisting.
Two kinds of embodiments can have or not have the looping silk of looping on other.But when for casingply, the form without looping silk is preferred.
Suitable example according to the cord of second embodiment of the invention has:
0.175+5 × 0.23+10 × 0.25CC the lay pitch=16mm
Twist with the fingers to=Z
Other example has:
0.17＋5×0.22＋10×0.24CC
0.175＋5×0.225＋10×0.245CC
0.18＋5×0.23＋10×0.255CC
Following table 1 summarizes some performances measured on the steel cord of foundation second embodiment of the invention.
0.175＋5×0.23＋10×0.25CCST
This Compact steel cord structure can obtain high corrosion resistance, because it allows elastomer or rubber osmosis to enter between each individual wire at least skin of steel cord, thus just prevents aqueous vapor to move along steel cord and along the space of steel cord inside.But, by strictly selecting the scope of diameter ratio, this compact nature due to steel cord not only increases the steel cross section amount of compactness and per unit total cross section, and form undesirable or unstable structure because space suitable between adjacent wires avoids, therefore can obtain the corrosion proof structure with improvement.
The above-mentioned test of major part is at the paper " research of steel cord mechanical performance and correlation test method " (" SurveyofMechanicalPropertiesofSteelCordandRelatedTestMet hods ") of BourgoisLuc, " tire reinforcement and tyre performance ", ASTMSTP694, R.A.Fleming and D.I.Livingston, Eds., American Society for Testing and Materials, 1979, describe in detail in 19-46 page.
Claims (6)
1., for strengthening a steel cord for elastomer product, described steel cord comprises one and has core filament diameter D
0core silk and around described core silk with identical sth. made by twisting to the 3N root layer silk twisted with the identical lay pitch, the scope of N is from 4 to 5, and the arrangement of described 3N root layer silk is: have intermediate layer diameter D by N root
1monofilament form intermediate layer, 2N root has outer diameter D
2monofilament form outer, wherein, D
0, D
1, and D
2unit be mm, described steel cord has following characteristics:
D
0≤D
1<D
2。
2. steel cord according to claim 1, wherein, N equals five.
3. steel cord according to claim 2, wherein, core filament diameter D
0equal intermediate layer diameter D
1.
4. steel cord according to claim 3, wherein, core filament diameter D
0with outer diameter D
2meet following relation:
0.76<(D
0/D
2)<0.93。
5. steel cord according to claim 2, wherein, core filament diameter D
0be less than intermediate layer diameter D
1.
6. steel cord according to claim 5, wherein, core filament diameter D
0, intermediate layer diameter D
1with outer diameter D
2meet following relation:
0.69<(D
0/D
1)<0.81；
0.59<(D
0/D
2)<0.73。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201180064594.7A CN103298996B8 (en) | 2011-01-10 | 2011-12-07 | Compact steel cord |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011000042 | 2011-01-10 | ||
| CNPCT/CN2011/000042 | 2011-01-10 | ||
| CN201180064594.7A CN103298996B8 (en) | 2011-01-10 | 2011-12-07 | Compact steel cord |
| PCT/EP2011/072074 WO2012095224A1 (en) | 2011-01-10 | 2011-12-07 | Compact steel cord |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| CN103298996A CN103298996A (en) | 2013-09-11 |
| CN103298996B true CN103298996B (en) | 2016-01-06 |
| CN103298996B8 CN103298996B8 (en) | 2019-12-03 |
Family
ID=49098409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180064594.7A Active CN103298996B8 (en) | 2011-01-10 | 2011-12-07 | Compact steel cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103298996B8 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190541A (en) * | 2017-06-21 | 2017-09-22 | 盛利维尔（中国）新材料技术股份有限公司 | A kind of open type steel cord with 1+5+10 structures |
| ES2963650T3 (en) * | 2017-10-27 | 2024-04-01 | Bekaert Advanced Cords Aalter Nv | Belt comprising steel cords adapted for wear detection |
| CN111926597A (en) * | 2020-07-20 | 2020-11-13 | 江苏兴达钢帘线股份有限公司 | Radial tire steel wire cord |
| CN112779797A (en) * | 2021-01-15 | 2021-05-11 | 江苏兴达钢帘线股份有限公司 | Compact steel cord |
| CN113123149A (en) * | 2021-04-22 | 2021-07-16 | 江苏兴达钢帘线股份有限公司 | Steel cord with glue permeation structure and preparation method thereof |
| CN113969511A (en) * | 2021-11-16 | 2022-01-25 | 山东大业股份有限公司 | High-permeability-rubber intensive steel cord |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143767A1 (en) * | 1983-09-02 | 1985-06-05 | N.V. Bekaert S.A. | Steel cord for rubber articles |
| US4756151A (en) * | 1986-09-15 | 1988-07-12 | Compagnie Generale Des Etablissements Michelin | Assembly of reinforcement cords for plastic and/or rubber materials having a core and article reinforced thereby |
| EP0290082A1 (en) * | 1987-05-04 | 1988-11-09 | N.V. Bekaert S.A. | Compact steel cord structure |
| EP0627520A1 (en) * | 1993-06-02 | 1994-12-07 | N.V. Bekaert S.A. | Compact steel cord with no wrapping filament |
| EP0675223A1 (en) * | 1994-03-24 | 1995-10-04 | N.V. Bekaert S.A. | Layered steel cord construction |
| CN1282390A (en) * | 1997-12-15 | 2001-01-31 | 贝克特股份有限公司 | Steel cord with polymer material |
| US6863103B1 (en) * | 1999-11-11 | 2005-03-08 | Bridgestone Corporation | Steel cord for the reinforcement of a rubber article and tire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56122814U (en) * | 1980-02-19 | 1981-09-18 | ||
| DE60213473T2 (en) * | 2002-02-14 | 2007-03-29 | Naamloze Vennootschap Bekaert S.A. | COMPACT STEEL ROPE |
-
2011
- 2011-12-07 CN CN201180064594.7A patent/CN103298996B8/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143767A1 (en) * | 1983-09-02 | 1985-06-05 | N.V. Bekaert S.A. | Steel cord for rubber articles |
| US4756151A (en) * | 1986-09-15 | 1988-07-12 | Compagnie Generale Des Etablissements Michelin | Assembly of reinforcement cords for plastic and/or rubber materials having a core and article reinforced thereby |
| EP0290082A1 (en) * | 1987-05-04 | 1988-11-09 | N.V. Bekaert S.A. | Compact steel cord structure |
| EP0627520A1 (en) * | 1993-06-02 | 1994-12-07 | N.V. Bekaert S.A. | Compact steel cord with no wrapping filament |
| EP0675223A1 (en) * | 1994-03-24 | 1995-10-04 | N.V. Bekaert S.A. | Layered steel cord construction |
| CN1282390A (en) * | 1997-12-15 | 2001-01-31 | 贝克特股份有限公司 | Steel cord with polymer material |
| US6863103B1 (en) * | 1999-11-11 | 2005-03-08 | Bridgestone Corporation | Steel cord for the reinforcement of a rubber article and tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103298996A (en) | 2013-09-11 |
| CN103298996B8 (en) | 2019-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103298996B (en) | Compact steel cord | |
| CN102066653B (en) | Steel cord for reinforcing rubber article and adopt the pneumatic tire of this all-steel cord | |
| JP5567497B2 (en) | Steel cord for reinforcing rubber articles and pneumatic tire using the same | |
| CN102365403B (en) | Method and device for producing a three-layer cord | |
| US10906353B2 (en) | Steel cord for reinforcing rubber article | |
| KR101523429B1 (en) | Steel cord for reinforcing a tire and radial tire using the same | |
| JP2016529410A (en) | High elongation steel cord and pneumatic tire provided with this cord | |
| US20170210169A1 (en) | Steel cord for reinforcing rubber article | |
| CN206090153U (en) | Steel cord for tire belt layer | |
| CN106715790A (en) | Steel cord for reinforcing rubber article, and pneumatic tire using same | |
| WO2016017653A1 (en) | Steel cord for reinforcing rubber article | |
| US8381505B2 (en) | Metallic cord comprising preformed and non-preformed wires, rubber sheet comprising said cord and tyre comprising at least one layer derived from said rubber sheet | |
| US8966872B2 (en) | Multi-strand steel cord with waved core strand | |
| JP2009084711A (en) | Process for producing rubber-steel composite cord and thus obtained rubber-steel composite cord | |
| AU642996B2 (en) | High strength cord | |
| CN104343026B (en) | Metal cords and rubber tyre | |
| WO2012095224A1 (en) | Compact steel cord | |
| CN209178573U (en) | A kind of meridian all-steel cord that fatigue performance is excellent | |
| JPH1193087A (en) | Steel cord for reinforcing rubber article and pneumatic tire | |
| CN103261512A (en) | Multi-strand steel cord with waved core strand | |
| CN203420163U (en) | Metal cord thread and rubber tire | |
| JP2000073285A (en) | Steel cord for tire reinforcement | |
| JP5595688B2 (en) | Steel cords and tires for rubber article reinforcement | |
| KR20120133926A (en) | Steel cord having improved degree of penetration of rubber | |
| JP2014100994A (en) | Pneumatic tire and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CI03 | Correction of invention patent |
Correction item: National priority Correct: PCT/CN2011/000042 2011.01.10 CN Number: 01 Page: The title page Volume: 32 Correction item: National priority Correct: PCT/CN2011/000042 2011.01.10 CN Number: 01 Volume: 32 |
|
| CI03 | Correction of invention patent |