CN110409203A - A kind of multiply steel cord and its manufacturing method - Google Patents
A kind of multiply steel cord and its manufacturing method Download PDFInfo
- Publication number
- CN110409203A CN110409203A CN201910546978.0A CN201910546978A CN110409203A CN 110409203 A CN110409203 A CN 110409203A CN 201910546978 A CN201910546978 A CN 201910546978A CN 110409203 A CN110409203 A CN 110409203A
- Authority
- CN
- China
- Prior art keywords
- strand
- steel cord
- welding
- multiply steel
- multiply
- 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.)
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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
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope 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
Abstract
The invention discloses a kind of multiply steel cord of steel cord technical field and its manufacturing methods, it aims to solve the problem that and scraps the technical issues of causing big loss, the wasting of resources because of strand deficiency fixed length metering in the prior art, a kind of multiply steel cord, including conventional strand and welding strand, conventional strand and welding strand are twisted together by strander forms multiply steel cord, has the solder joint formed after welding on the welding strand.The present invention is twisted together again with conventional strand as steel cord after welding to insufficient fixed length metering strand, can be made full use of the strand semi-finished product of insufficient fixed length metering, reduction loss, and can fully ensure that the whole Fracture Force of final multiply steel cord, be improved security performance.Multiply steel cord of the present invention only has part strand to be welded, and stretches stretching Fracture Force of the Fracture Force much higher than the multiply steel cord of whole rope welding.
Description
Technical field
The invention belongs to steel cord technical fields, and in particular to a kind of multiply steel cord and its manufacturing method.
Background technique
Steel cord product is often by as rubber product reinforcing material application, as tire, conveyer belt, high-pressure rubber pipe, spy
The framework material of kind wirerope etc..Steel cord is usually formed by more strand twistings, always has twisting fracture of wire in process of production
Phenomenon causes the product of insufficient fixed length metering to generate, at this time to multiply steel cord by the way of the welding of whole rope insufficient fixed length
The Product jointing of metering gets up, to reach fixed length metering.Under normal circumstances, the drawing of the bond pad locations of the whole rope welding of multiply steel cord
Stretch Fracture Force is about the multiply steel cord script Fracture Force 40%~50%, multiply steel cord often to fracture force request compared with
Height, so it is steel cord product risk item used in rubber product that the stretching Fracture Force of bond pad locations is relatively low.In addition for
Multiply steel cord, during twisting, the semi-finished product of the insufficient fixed length metering generated due to fracture of wire can only be reported strand
It is useless, it is lost very high.
Summary of the invention
The purpose of the present invention is to provide a kind of multiply steel cord and its manufacturing methods, to solve in the prior art because of strand
Insufficient fixed length metering and scrapping causes the technical issues of big loss, the wasting of resources.
In order to achieve the above objectives, the technical scheme adopted by the invention is that: a kind of multiply steel cord, including conventional strand and
It welds strand, conventional strand and welding strand and forms multiply steel cord by the way that strander is twisted, have welding on the welding strand
The solder joint formed afterwards.
The routine strand and welding strand are made of being twisted together as the steel wire that filament diameter is 0.1mm~0.75mm；Institute
Stating conventional strand and welding the nominal diameter of strand is 0.5mm~2.0mm.
The distance between any two solder joint in the multiply steel cord and welding strand is not less than 200m.
The quantity of the routine strand is 0, only comprising welding strand in multiply steel cord.
The solder joint length is not more than 2mm.
110% of the diameter of the solder joint no more than the non-welded part nominal diameter of welding strand where the solder joint.
The welding strand is only used as the face stock strand of multiply steel cord.
A kind of manufacturing method of multiply steel cord, comprising the following steps:
The conventional strand of insufficient fixed length metering is connected into welding strand using welding method；
Strand will be welded with strander and conventional strand is twisted together and forms multiply steel cord together.
The welding method includes the system of the jointing metal in a manner of heating, high temperature or high pressure such as melting welding, pressure welding, soldering
Make technique and technology.
The strander is tubular stranding machine.
Compared with prior art, advantageous effects of the invention:
(1) present invention is twisted together again with conventional strand as steel cord to after the welding of insufficient fixed length metering strand, can abundant benefit
With the strand semi-finished product of insufficient fixed length metering, loss is reduced, and can fully ensure that the whole Fracture Force of final multiply steel cord,
Improve security performance；
(2) multiply steel cord of the present invention only has part strand to be welded, and stretches Fracture Force and is much higher than whole rope
The stretching Fracture Force of the multiply steel cord of welding.
Detailed description of the invention
Fig. 1 is the steel cord solder joint schematic diagram of whole rope welding；
Fig. 2 is a kind of solder joint schematic diagram of multiply steel cord provided in an embodiment of the present invention；
Fig. 3 is stress strain curve figure of the steel cord of different structure in tension test；
In figure: the stress strain curve of 1. steel cords that do not weld；2. the stress strain curve of the embodiment of the present invention 1；3. the present invention
The stress strain curve of comparative example 1.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Under normal circumstances, the stretching Fracture Force of the bond pad locations of the whole rope welding of multiply steel cord is about multiply steel cord script
The 40%~50% of Fracture Force, multiply steel cord is more demanding to Fracture Force, so the stretching Fracture Force of bond pad locations is relatively low is
Steel cord product risk item used in rubber product.In addition for multiply steel cord, strand during twisting, due to
Fracture of wire and the semi-finished product of insufficient fixed length metering generated can only be scrapped, be lost very high.One kind described in the embodiment of the present invention
Multiply steel cord, including conventional strand and welding strand, welding strand be the conventional strand of insufficient fixed length metering after weld formation
The satisfactory strand of length.Conventional strand and welding strand one are reinstated tubular stranding machine and be twisted into multiply steel cord, it is this
Conventional strand steel cord of whole rope welding compared with the multiply steel cord of welding strand mixing twisting has better tensile property.It can
Because the product of fixed length metering insufficient caused by twisting fracture of wire re-uses, loss will be reduced, saving in production process
The energy.
Strand in the embodiment of the present invention is that filament diameter is used to form for the more steel wire twistings of 0.1mm~0.75mm
, the nominal diameter of strand is 0.5mm~2.0mm.The strand of insufficient fixed length metering is connected into length symbol using welding method
Desired strand is closed, then welding strand and other conventional strands twisted present invention that formed together of tubular stranding machine are implemented
Multiply steel cord described in example.Welding method includes that melting welding, pressure welding, soldering etc. are engaged in a manner of heating, high temperature or high pressure
The manufacturing process and technology of metal.To guarantee that welding strand has high elongation performance as far as possible, in welding, solder joint length is controlled
No more than 2mm.To guarantee that welding strand can closely fit together with conventional strand in twisting, the diameter of solder joint is controlled
No more than 110% of the non-welded part nominal diameter of welding strand where the solder joint.Strand is welded in multiply steel cord
Quantity can be one, two even more, and the multiply steel cord to guarantee final has enough intensity, welds the quantity of strand
It should lack as far as possible, a root bead only can be set in face strand and connect strand or only in a core strand piece strand of setting.When multiply steel curtain
When being at a distance sufficiently large of any two solder joint in line, the quantity of conventional strand can be 0, at this time only comprising weldering in multiply steel cord
Connect strand.In the present embodiment, the distance between any two solder joint of multiply steel cord should be not less than 200 meters.Finished steel
Cord can have outer wrapping wire or not have outer wrapping wire.Multiply steel cord strand is twisted formed when, can a strand or
More strands are placed in core, referred to as core strand；More strands are placed in outer layer, referred to as face stock.In view of multiply steel cord is bearing to draw
When stretching stress, core strand bear stress is larger and stress that face stock is born is smaller, so welding strand is preferably provided at face stock.
Illustrate the multiply of technical solution of the present invention and whole rope welding below by the performance data of two groups of steel cords
The performance difference of steel cord.
Comparative example 1: 7 × 7 × 0.22+0.15HT of multiply steel cord includes solder joint, as shown in Figure 1, solder joint is the welding of whole rope；
Embodiment 1: 7 × 7 × 0.22+0.15HT of multiply steel cord includes solder joint, and solder joint is only contained in wherein 11 × 7 face
In stock strand, as shown in Figure 2；
Comparative example 1 and the performance test results of embodiment 1 are as shown in table 1:
Table 1
As it can be seen from table 1, when carrying out tension test, the steel cord Fracture Force of embodiment 1 is bright compared with comparative example 1
Aobvious to be higher than comparative example 1, the steel cord Fracture Force of embodiment 1 can achieve 80% or more of steel cord script Fracture Force.
The stress strain curve of tension test is as shown in figure 3, wherein curve 1 is that the stretching for the multiply steel cord that do not weld is bent
Line, curve 2 are the stress strain curve of embodiment 1, and curve 3 is the stress strain curve of comparative example 1.It can be seen that 2 property of curve of embodiment 1
It can be better than the curve 3 of comparative example 1 closer to the curve 1 of script steel cord, 2 performance of curve of embodiment 1.
Embodiment 2: 7 × 7 × 0.22+0.15HT of multiply steel cord includes solder joint, and solder joint is only contained in wherein 1 × 7 core strand
In strand；
Comparative example 1 and the performance test results of embodiment 2 are as shown in table 2:
Table 2
From table 2 it can be seen that compared with comparative example 1, when carrying out breaking tensile test, the steel cord of the welding of embodiment 2
Fracture Force is apparently higher than comparative example 1, the steel cord Fracture Force of embodiment 2 can achieve the 60% of steel cord script Fracture Force with
On.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of multiply steel cord, characterized in that including conventional strand and welding strand, conventional strand and welding strand pass through twirl
Stock machine is twisted to form multiply steel cord, has the solder joint formed after welding on the welding strand.
2. multiply steel cord according to claim 1, characterized in that the routine strand is straight by monofilament with welding strand
Made of the steel wire that diameter is 0.1mm ~ 0.75mm is twisted；It is described routine strand and welding strand nominal diameter be 0.5mm ~
2.0mm。
3. multiply steel cord according to claim 1, characterized in that appointing in the multiply steel cord and welding strand
The distance between two solder joints of anticipating are not less than 200m.
4. multiply steel cord according to claim 3, characterized in that the quantity of the routine strand is 0, multiply steel cord
In only comprising welding strand.
5. multiply steel cord according to claim 1, characterized in that the solder joint length is not more than 2mm.
6. multiply steel cord according to claim 1, characterized in that the diameter of the solder joint is no more than weldering where the solder joint
Connect the 110% of the non-welded part nominal diameter of strand.
7. multiply steel cord according to claim 1, characterized in that the welding strand is only used as the face of multiply steel cord
Stock strand.
8. a kind of manufacturing method of multiply steel cord, characterized in that the following steps are included:
The conventional strand of insufficient fixed length metering is connected into welding strand using welding method；
Strand will be welded with strander and conventional strand is twisted together and forms multiply steel cord together.
9. the manufacturing method of multiply steel cord according to claim 8, characterized in that the welding method includes molten
The manufacturing process and technology of the jointing metal in a manner of heating, high temperature or high pressure such as weldering, pressure welding, soldering.
10. the manufacturing method of multiply steel cord according to claim 8, characterized in that the strander is that tubular type twists stock
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546978.0A CN110409203A (en) | 2019-06-24 | 2019-06-24 | A kind of multiply steel cord and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546978.0A CN110409203A (en) | 2019-06-24 | 2019-06-24 | A kind of multiply steel cord and its manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN110409203A true CN110409203A (en) | 2019-11-05 |
Family
ID=68359511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910546978.0A Pending CN110409203A (en) | 2019-06-24 | 2019-06-24 | A kind of multiply steel cord and its manufacturing method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041493A (en) * | 2001-05-21 | 2003-02-13 | Tokyo Seiko Co Ltd | Multilayer-twisted wire rope |
| US20050172605A1 (en) * | 2002-05-23 | 2005-08-11 | N.V. Bekaert S.A. | Metal cord |
| CN1668804A (en) * | 2002-07-17 | 2005-09-14 | 贝克特股份有限公司 | Metal strand comprising interrupted filament |
| CN102873446A (en) * | 2011-07-12 | 2013-01-16 | 天津市新潮铸钢磨料厂 | Butt welding method for lengthening steel wire |
| CN102873447A (en) * | 2012-10-12 | 2013-01-16 | 天津冶金集团中兴盛达钢业有限公司 | Steel wire connecting method |
| CN103072437A (en) * | 2013-01-24 | 2013-05-01 | 山东胜通钢帘线有限公司 | Spiral hexagonal bead |
| CN208649770U (en) * | 2018-06-25 | 2019-03-26 | 江阴市伟裕金属制品有限公司 | A kind of enhancing of belt skeleton wirerope and its production equipment |
-
2019
- 2019-06-24 CN CN201910546978.0A patent/CN110409203A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041493A (en) * | 2001-05-21 | 2003-02-13 | Tokyo Seiko Co Ltd | Multilayer-twisted wire rope |
| US20050172605A1 (en) * | 2002-05-23 | 2005-08-11 | N.V. Bekaert S.A. | Metal cord |
| CN1668804A (en) * | 2002-07-17 | 2005-09-14 | 贝克特股份有限公司 | Metal strand comprising interrupted filament |
| CN102873446A (en) * | 2011-07-12 | 2013-01-16 | 天津市新潮铸钢磨料厂 | Butt welding method for lengthening steel wire |
| CN102873447A (en) * | 2012-10-12 | 2013-01-16 | 天津冶金集团中兴盛达钢业有限公司 | Steel wire connecting method |
| CN103072437A (en) * | 2013-01-24 | 2013-05-01 | 山东胜通钢帘线有限公司 | Spiral hexagonal bead |
| CN208649770U (en) * | 2018-06-25 | 2019-03-26 | 江阴市伟裕金属制品有限公司 | A kind of enhancing of belt skeleton wirerope and its production equipment |
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Application publication date: 20191105 |
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