CN104040070A - Steel cord with full elastomer penetration - Google Patents
Steel cord with full elastomer penetration Download PDFInfo
- Publication number
- CN104040070A CN104040070A CN201280066317.4A CN201280066317A CN104040070A CN 104040070 A CN104040070 A CN 104040070A CN 201280066317 A CN201280066317 A CN 201280066317A CN 104040070 A CN104040070 A CN 104040070A
- Authority
- CN
- China
- Prior art keywords
- steel
- steel cord
- group
- steel wire
- ple
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 129
- 239000010959 steel Substances 0.000 title claims abstract description 129
- 229920001971 elastomer Polymers 0.000 title abstract description 28
- 239000000806 elastomer Substances 0.000 title abstract description 8
- 230000035515 penetration Effects 0.000 title abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000003490 calendering Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- D07B1/0646—Reinforcing cords for rubber or plastic articles comprising longitudinally preformed wires
-
- 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
- D07B1/0626—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration the reinforcing cords consisting of three core wires or filaments and at least one layer of outer wires or filaments, i.e. a 3+N 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
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2059—Cores characterised by their structure comprising wires
- D07B2201/206—Cores characterised by their structure comprising wires arranged parallel to the axis
-
- 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
- D07B2401/2005—Elongation or elasticity
- D07B2401/201—Elongation or elasticity regarding structural elongation
Landscapes
- Ropes Or Cables (AREA)
- Tires In General (AREA)
Abstract
A steel cord (10) adapted for the reinforcement of elastomers, comprises a first group and a second group, the second group being helically twisted around the first group with a cord twisting step, the first group comprising a first number of first steel filaments (12), the first number ranging between three and eight, the second group comprising a second number of second steel filaments (14), the second number being equal to or greater than the first number, the first filaments having a twisting step greater than 300mm, both the first steel filaments (12) and the second steel filaments (14) being preformed. The steel cord has a PLE at a tensile tension of 50 Newton between 0.08% and 0.25%. This steel cord has measurable deformation to achieve full elastomer penetration, but also maintains the process-ability and functionality for elastomer reinforcement.
Description
Technical field
The present invention relates to a kind of elastomeric steel cord that is suitable for strengthening, elastomer is for example Rubber Conveyor Belt Scrap, pneumatic tire, rubber hose, rubber synchronous belt and polyurethane synchronous belt.This steel cord has Open architecture to allow full rubber osmosis.
Background technology
Steel cord with twisting steel wire is well known in the art, particularly in rubber reinforcement field, more particularly in pneumatic tire enhancing field.
The full infiltration that is elastomer (for example rubber) to steel cord major requirement.This means that rubber must infiltrate between the element of steel cord and fill all possible space, to reduce wearing and tearing and the stress between element, avoid moisture to move along steel cord, this moisture can cause macro-corrosion and can significantly reduce the life-span of steel cord and rubber simultaneously.
In order to realize full rubber osmosis, prior art provides the solution that makes steel wire distortion and construct open steel cord.WO95/16816A1 discloses the technology that makes steel wire become polygon in the situation that there is no additional energy to be out of shape.WO99/28547A1 discloses the steel wire curling technology in two planes that makes.WO02/088459A1 discloses the steel cord that comprises first group and second group.With the cord lay pitch, around first group, twist spirally for this second group.This first group the first steel wire that comprises the first quantity.The scope of the first quantity is between 3 to 8.Second group of second steel wire that comprises the second quantity.The second quantity is more than or equal to the first quantity.The lay pitch of the first steel wire is greater than 300mm.At least one in the second steel wire is into polygon ground preformed, to allow rubber osmosis.
Although prior art provides the open steel cord of several preparations and allowed the method for rubber osmosis, distortion that steel cord carries out much degree just can obtain full rubber osmosis and remain the unknown.
Summary of the invention
Primary goal of the present invention is to provide has remarkable distortion to realize the steel cord of full rubber osmosis.
Second target of the present invention is to provide in the situation that do not weaken the processing characteristics of the steel cord strengthening for elastomer and the steel cord of the full rubber osmosis of function energy.
According to a first aspect of the invention; claimed a kind of product; be that steel cord comprises first group and second group; with the cord lay pitch, twist spirally around first group for second group, first group of first steel wire that comprises the first quantity, the scope of the first quantity is between 3 to 8; second group of second steel wire that comprises the second quantity; the second quantity is more than or equal to the first quantity, and the lay pitch of the first steel wire is greater than 300mm, the first steel wire and all preformed of the second steel wire.The PLE of steel cord when 50N tensile stress is between 0.08% to 0.25%.More preferably, the PLE of steel cord when 50N tensile stress is between 0.10% to 0.18%.The PLE of the second steel wire when 50N tensile stress is between 0.9% to 2.0%, be more preferably between 1.0% to 1.2%, and the PLE of the first steel wire when 50N tensile stress is between 0.4% to 1.0%, is more preferably between 0.65% to 0.75%.The first quantity is 4, and the second quantity is 6.The first preshaping of wire is three-dimensional waveform, and it is first curling and second curling that preferred this solid waveform has, and the plane at the first curling place plane curling with second is substantially not identical simultaneously.The second steel wire is polygon preformed.
Accompanying drawing explanation
Fig. 1 has described first preferred embodiment of the present invention.
Fig. 2 shows for tensile stress and the extension curve with the steel cord of different PLE.
The specific embodiment
Fig. 1 shows in conjunction with steel cord of the present invention, and wherein, steel cord 10 comprises first group of steel wire 12 and second group of steel wire 14.With length of lay for steel cord, around first group, twist spirally for second group.First group comprises 4 the first steel wires 12, and second group comprises 6 the second steel wires 14.The lay pitch of the first steel wire 12 is greater than 300mm.The first steel wire 12 and second all preformed of steel wire 14.Therefore, between steel wire, there is space.
In order to realize full rubber osmosis, the PLE of steel cord when 50N tensile stress is between 0.08% to 0.25%.More preferably, the PLE of steel cord when 50N tensile stress is between 0.10% to 0.18%.In the manufacture process of tire, in calendering operation, steel cord is under the effect of tensile stress of 8N to 12N, and wherein, in calendering operation, steel cord is merged enters in rubber matrix.In order to ensure always there is the space for rubber osmosis between steel wire, the PLE of steel cord when 50N tensile stress should be lower than 0.08%, because too low PLE means in calendering operation under the tensile stress effect at 8N to 12N that the opening between steel wire can be closed.On the one hand, although larger steel cord PLE can bring better rubber permeability, on steel cord PLE, be limited to 0.25% left and right.Steel cord is embedded in pneumatic tire as tension reinforce, and PLE is greater than 0.25% steel cord and means very open steel cord, and this first can be due to steel cord pine and giving rise to trouble in the structure of steel cord too; Secondly can in the manufacture process of tire, give rise to trouble, for example casing ply is coarse or spacing is inhomogeneous, and this will cause the inhomogeneities of tire and the dynamic balancing that destroys tire; The 3rd, can not in tire, produce enough intensity, because large PLE means percentage elongation large under tension force effect, and the steel cord under identical condition with large PLE can not produce and the same intensity of steel cord with little PLE.Therefore, the PLE of steel cord should be between 0.08% to 0.25%, is more preferably between 0.10% to 0.18%.
Based on similar reasoning, in order to obtain desirable steel cord PLE, for steel wire, there is upper and lower bound.The PLE of the second steel wire when 50N tensile stress should be between 0.9% to 2.0%, be more preferably between 1.0% to 1.2%, and the PLE of the first steel wire when 50N tensile stress is between 0.4% to 1.0%, is more preferably between 0.65% to 0.75%.Comparatively speaking, the PLE of the second steel wire need to be larger than the first steel wire, to form space between the second steel wire, thereby realizes full rubber osmosis.
The contrast test that 4+6 * 0.30mm steel cord is carried out has been verified above reasoning equally.
| The first steel wire diameter (mm) | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
| The PLE (%) of the first steel wire when 50N | 0.4 | 0.65 | 0.7 | 0.75 | 1.0 |
| The first wire pitch (mm) | >300 | >300 | >300 | >300 | >300 |
| The first steel wire twist with the fingers to | S | S | S | S | S |
| The second steel wire diameter (mm) | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
| The PLE (%) of the second steel wire when 50N | 0.9 | 1.0 | 1.1 | 1.2 | 2.0 |
| The second wire pitch (mm) | 18 | 18 | 18 | 18 | 18 |
| The second steel wire twist with the fingers to | S | S | S | S | S |
| Length of lay for steel cord (mm) | 18 | 18 | 18 | 18 | 18 |
| Steel cord twist with the fingers to | S | S | S | S | S |
| The PLE (%) of steel cord when 50N | 0.08 | 0.10 | 0.14 | 0.18 | 0.25 |
| Polymer penetration (%, the pressure loss) | 50 | 5 | 0 | 0 | 0 |
| Elastic modelling quantity (GPa) | 175 | 175 | 175 | 175 | 175 |
Fig. 2 shows for tensile stress and the extension curve with the steel cord of different PLE, and wherein, line 22 represents that PLE is 0.08% steel cord, and line 24 represents that PLE is 0.14% steel cord, and line 26 represents that PLE is 0.25% steel cord.These three lines have identical slope, because three steel cords have identical elastic modelling quantity; And structural elongation is different, because the opening of steel cord is different.Therefore, line 22,24 and 26 is parallel to each other and stagger.In the situation that identical percentage elongation E, line 22 can produce the power of F2, and line 24 can produce the power of F4, and line 26 can produce the power of F6.Therefore, PLE is greater than 0.25% steel cord and can not produces enough the power for enhancing by polymer.
The decline from F2 to F4 power for the increase compensating due to PLE causes, can adopt high-tensile steel wires or super high-tensile steel wires, even special high-tensile steel wires.In above-mentioned contrast test, adopt tensile strength higher than the high-tensile steel wires of 3800-2000 * d (steel wire diameter (mm)) MPa to obtain elastic modelling quantity up to the steel cord of 175GPa.
By the first preshaping of wire, be three-dimensional waveform, more preferably this solid waveform has first curlingly and second curling, and the plane at the first curling place plane curling from second is substantially different simultaneously.Because the first steel wire is positioned at the inside of steel cord, and do not twist or twist to be greater than the lay pitch of 300mm, therefore the three-dimensional waveform on the first steel wire guarantees always to exist space to realize full rubber osmosis between the first steel wire.
Claims (11)
1. a steel cord (10), it comprises first group and second group, with the cord lay pitch, around described first group, twist spirally for described second group, described first group of first steel wire (12) that comprises the first quantity, the scope of described the first quantity is between 3 to 8, described second group of second steel wire (14) that comprises the second quantity, described the second quantity is more than or equal to described the first quantity, the lay pitch of described the first steel wire (12) is greater than 300mm, described the first steel wire (12) and described the second steel wire (14) all carry out preformed, it is characterized in that, the PLE of described steel cord (10) when 50N tensile stress is between 0.08% to 0.25%.
2. steel cord according to claim 1, wherein, the PLE of described steel cord (10) when 50N tensile stress is between 0.10% to 0.18%.
3. steel cord according to claim 1, wherein, the PLE of described the second steel wire (14) when 50N tensile stress is between 0.9% to 2.0%.
4. steel cord according to claim 3, wherein, the PLE of described the second steel wire (14) when 50N tensile stress is between 1.0% to 1.2%.
5. steel cord according to claim 1, wherein, the PLE of described the first steel wire (12) when 50N tensile stress is between 0.4% to 1.0%.
6. steel cord according to claim 5, wherein, the PLE of described the first steel wire (12) when 50N tensile stress is between 0.65% to 0.75%.
7. steel cord according to claim 1, wherein said the first quantity is 4.
8. steel cord according to claim 7, wherein said the second quantity is 6.
9. steel cord according to claim 1, wherein, described the first steel wire (12) is pre-formed as three-dimensional waveform.
10. steel cord according to claim 9, wherein, it is first curling and second curling that described three-dimensional waveform has, this first curling plane curling with second not identical plane substantially that is arranged in.
11. steel cords according to claim 1, wherein, described the second steel wire (14) is polygon preformed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280066317.4A CN104040070B (en) | 2012-01-18 | 2012-12-12 | The steel cord of full elastomer penetration |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2012/070520 | 2012-01-18 | ||
| CN2012070520 | 2012-01-18 | ||
| CN201280066317.4A CN104040070B (en) | 2012-01-18 | 2012-12-12 | The steel cord of full elastomer penetration |
| PCT/EP2012/075247 WO2013107570A1 (en) | 2012-01-18 | 2012-12-12 | Steel cord with full elastomer penetration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104040070A true CN104040070A (en) | 2014-09-10 |
| CN104040070B CN104040070B (en) | 2016-09-21 |
Family
ID=51469672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280066317.4A Expired - Fee Related CN104040070B (en) | 2012-01-18 | 2012-12-12 | The steel cord of full elastomer penetration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104040070B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758437A (en) * | 2017-01-19 | 2017-05-31 | 江苏兴达钢帘线股份有限公司 | It is a kind of（4+3）The superhigh intensity steel cord of structure |
| CN107580642A (en) * | 2015-02-19 | 2018-01-12 | 米其林集团总公司 | More strands cables for the 1xN structures of the protection reinforcement of tire |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6445884A (en) * | 1987-05-04 | 1989-02-20 | Bekaert Sa Nv | Compact cord made of steel |
| JPH0673672A (en) * | 1992-08-24 | 1994-03-15 | Tokyo Seiko Co Ltd | Steel cord for reinforcing rubber |
| JPH0698341B2 (en) * | 1990-05-02 | 1994-12-07 | 住友ゴム工業株式会社 | Steel cord for tire |
| JPH07189146A (en) * | 1993-12-25 | 1995-07-25 | Bridgestone Metarufua Kk | Steel cord for reinforcing rubber product |
| CN1133075A (en) * | 1993-12-15 | 1996-10-09 | 贝克特股份有限公司 | Open steel cord structure |
| CN1247133A (en) * | 1998-09-10 | 2000-03-15 | 韩国轮胎株式会社 | Steel-made tyre cord of radial tyre |
| CN1505719A (en) * | 2001-04-26 | 2004-06-16 | �����ʩ���عɷݹ�˾ | Steel cord for reinforcing rubber articles |
| CN102812177A (en) * | 2010-03-23 | 2012-12-05 | 贝卡尔特公司 | Open off-the-road cord with preformed filaments |
-
2012
- 2012-12-12 CN CN201280066317.4A patent/CN104040070B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6445884A (en) * | 1987-05-04 | 1989-02-20 | Bekaert Sa Nv | Compact cord made of steel |
| JPH0698341B2 (en) * | 1990-05-02 | 1994-12-07 | 住友ゴム工業株式会社 | Steel cord for tire |
| JPH0673672A (en) * | 1992-08-24 | 1994-03-15 | Tokyo Seiko Co Ltd | Steel cord for reinforcing rubber |
| CN1133075A (en) * | 1993-12-15 | 1996-10-09 | 贝克特股份有限公司 | Open steel cord structure |
| JPH07189146A (en) * | 1993-12-25 | 1995-07-25 | Bridgestone Metarufua Kk | Steel cord for reinforcing rubber product |
| CN1247133A (en) * | 1998-09-10 | 2000-03-15 | 韩国轮胎株式会社 | Steel-made tyre cord of radial tyre |
| CN1505719A (en) * | 2001-04-26 | 2004-06-16 | �����ʩ���عɷݹ�˾ | Steel cord for reinforcing rubber articles |
| CN102812177A (en) * | 2010-03-23 | 2012-12-05 | 贝卡尔特公司 | Open off-the-road cord with preformed filaments |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580642A (en) * | 2015-02-19 | 2018-01-12 | 米其林集团总公司 | More strands cables for the 1xN structures of the protection reinforcement of tire |
| CN107580642B (en) * | 2015-02-19 | 2020-10-09 | 米其林集团总公司 | Method for manufacturing a multi-strand cable of 1xN construction and product obtained by said method |
| CN106758437A (en) * | 2017-01-19 | 2017-05-31 | 江苏兴达钢帘线股份有限公司 | It is a kind of（4+3）The superhigh intensity steel cord of structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104040070B (en) | 2016-09-21 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 |