CN207852381U - High intensity annealed copper strand wire for high-speed railway and subway contact net - Google Patents
High intensity annealed copper strand wire for high-speed railway and subway contact net Download PDFInfo
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- CN207852381U CN207852381U CN201820173311.1U CN201820173311U CN207852381U CN 207852381 U CN207852381 U CN 207852381U CN 201820173311 U CN201820173311 U CN 201820173311U CN 207852381 U CN207852381 U CN 207852381U
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Abstract
The utility model provides a kind of high intensity annealed copper strand wire for high-speed railway and subway contact net, it is characterised in that including：Being electrically connected, being laterally electrically connected, grounding connection at overlap and track switch of the high intensity annealed copper strand wire for high-speed railway and in subway contact net；The annealed copper strand wire is 15 sub-thread twisted wires with multilayered structure made of being twisted again by more sub-thread twisted wires, wherein annealed copper strand wire outer layer, and annealed copper strand wire middle level is 9 sub-thread twisted wires, and annealed copper strand wire internal layer is 3 sub-thread twisted wires；The sub-thread twisted wire has the double-layer structure being twisted by more soft copper monofilament, and wherein sub-thread twisted wire outer layer is 9 soft copper monofilament, and sub-thread twisted wire internal layer is 3 soft copper monofilament.The utility model further increases the tensile strength and conductivity of annealed copper strand wire by optimizing drawing process and annealed copper strand wire hierarchical structure.
Description
Technical field
The utility model is related in a kind of high-speed railway and subway contact net overlap and track switch at for electrically connecting
Connect, laterally electrical connection, grounding connection etc. high-strength high conductivity annealed copper strand wire, belong to electrified technical field.
Background technology
With economic rapid development, electric railway warp-wise high speed development is efficiently big with the continuous speed-raising of locomotive
The effect of electrical current carriers is increasingly prominent, the annealed copper strand wire employed in existing high-speed railway and subway contact net, and effect is
Ensure between carrier cable and contact line successfully switching current, the electric current of carrier cable is avoided to flow through dropper, support device and positioning
Device flows to contact line, by dropper, positioning device scaling loss or carrier cable is made to blow stock, thus annealed copper strand wire bear electric current compared with
Greatly.
Annealed copper strand wire is generally fine copper, and conventionally produced pure copper wire tensile strength is low, bad mechanical property.With locomotive
The raising of number of run, vibration frequency also improve simultaneously, and fracture, service life contracting continuously emerges for being laterally electrically connected broken string
It is short；Electrical connection, grounding connection etc. make the maintenance cost of electric railway improve during later stage installation.This
Apply for problem to be solved is how to improve the tensile strength and conductivity of annealed copper strand wire.
Invention content
In view of the above-mentioned problems, the utility model is further increased by optimizing drawing process and annealed copper strand wire hierarchical structure
The tensile strength and conductivity of annealed copper strand wire.
The utility model provides a kind of high intensity annealed copper strand wire for high-speed railway and subway contact net, the high intensity
Being electrically connected, be laterally electrically connected, connect at overlap and track switch of the annealed copper strand wire for high-speed railway and in subway contact net
Ground connects；The annealed copper strand wire is 15 with multilayered structure made of being twisted again by more sub-thread twisted wires, wherein annealed copper strand wire outer layer
Root sub-thread twisted wire, annealed copper strand wire middle level are 9 sub-thread twisted wires, and annealed copper strand wire internal layer is 3 sub-thread twisted wires；The sub-thread twisted wire tool
There is the double-layer structure being twisted by more soft copper monofilament, wherein sub-thread twisted wire outer layer is 9 soft copper monofilament, sub-thread twisted wire internal layer
For 3 soft copper monofilament.
Further, a diameter of φ 0.68mm, tensile strength 230MPa-260MPa of the soft copper monofilament of the annealed copper strand wire
Between.
Further, there is gap between each twisted wire layer, soft copper monofilament, anti-corrosion material is filled in the gap.
The above-mentioned preparation method for high-speed railway and the high intensity annealed copper strand wire of subway contact net, including following step
Suddenly：（1）On draw melting copper：Electrolytic copper plate is added in main frequency furnace, 1120 DEG C -1200 DEG C of melting copper coolant-temperature gage, charcoal is covered on surface
Oxygen barrier oxygen uptake, water is every cooling continuous up-casting copper bar；
（2）Isometrical double extruding：Isometrical double extruding are carried out to the continuous up-casting bar that step 1 obtains, extrusion die is heated to 450
DEG C -600 DEG C, soaking time 5-15 minutes squeezes temperature within the scope of 500 DEG C -650 DEG C, the cooling temperature of pressure ram 30 DEG C -
45 DEG C, ensure that pressure ram is fully cooled；
（3）Y type cold rollings：Isometrical double pressure rams are sent into milling trains and carry out cold rollings, deflection 50%-70%, cooling water pressure≤
0.5MPa, hauling speed≤1200RMP, rolled bar are air-cooled to room temperature；
（4）11 grades of cold drawings：By the product of step 3 by 11 cold drawings, it is coated with grease, per pass drawing deformation amount exists
Between 10%-30%, drawing coolant liquid concentration keeps alkalinity≤10%, ensures that surface will not severe oxidation；
（5）13 grades of cold drawings：By the product of step 4 by 13 cold drawings, online annealing simultaneously when drawing monofilament, per pass
Drawing deformation amount is between 5%-20%；Drawing speed between 200m/min-500m/min, drawing coolant liquid concentration≤10%,
And keep alkalinity；
（6）Twisted sub-thread：By the soft copper monofilament after drawing, it is twisted into sub-thread strand, twisting speed≤1300r/min；
（7）Multiply twists again：Sub-thread twisted wire is twisted into whole stock annealed copper strand wire, traction and take-up speed≤1200r/min again.
Compared with prior art, the utility model has the advantage of：
（1）The utility model high intensity annealed copper strand wire, of low cost, performance boost effect is good, and monofilament tensile strength is high
（230-260MPa）, the pull-off force of sub-thread twisted wire is 0.95-1.076KN, whole pull-off force 25.69-29.05KN, can be effective
It prevents annealed copper strand wire to be pulled off during construction or use, while extending its service life；
（2）The product conductivity being prepared is high（100%-103%）, high conductivity can efficiently conduct electric current, reduce
The loss of electric current reduces operation and maintenance cost, suitable for high-speed railway and the overlap in subway contact net and track switch
Place for being electrically connected, laterally electrical connection, grounding connection etc..
Description of the drawings
Fig. 1 is the preparation process flow of the utility model annealed copper strand wire.
Fig. 2 is the sectional view of the utility model annealed copper strand wire.
Reference numeral：1：Soft copper monofilament, 2：Sub-thread twisted wire.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment 1
A kind of high intensity annealed copper strand wire for high-speed railway and subway contact net, the high intensity annealed copper strand wire is for height
Being electrically connected at fast railway and overlap in subway contact net and track switch, laterally electrical connection, grounding connection；The soft copper
Twisted wire is 15 sub-thread twisted wires, soft copper with multilayered structure made of being twisted again by more sub-thread twisted wires, wherein annealed copper strand wire outer layer
Twisted wire middle level is 9 sub-thread twisted wires, and annealed copper strand wire internal layer is 3 sub-thread twisted wires；The sub-thread twisted wire has by more soft copper lists
The double-layer structure that silk is twisted, wherein sub-thread twisted wire outer layer are 9 soft copper monofilament, and sub-thread twisted wire internal layer is 3 soft copper monofilament.
Copper content is 99.99% or more in the annealed copper strand wire.A diameter of φ 0.68mm of the soft copper monofilament of the annealed copper strand wire.It is described
There is gap between each twisted wire layer, soft copper monofilament, MF860F anti-corrosion sealants are filled in the gap.
Embodiment 2
A kind of high intensity annealed copper strand wire for high-speed railway and subway contact net, which is characterized in that the high intensity is soft
Being electrically connected, being laterally electrically connected, being grounded at overlap and track switch of the copper stranded conductor for high-speed railway and in subway contact net
Connection；The annealed copper strand wire is 15 with multilayered structure made of being twisted again by more sub-thread twisted wires, wherein annealed copper strand wire outer layer
Sub-thread twisted wire, annealed copper strand wire middle level are 9 sub-thread twisted wires, and annealed copper strand wire internal layer is 3 sub-thread twisted wires；The sub-thread twisted wire has
The double-layer structure being twisted by more soft copper monofilament, wherein sub-thread twisted wire outer layer are 9 soft copper monofilament, and sub-thread twisted wire internal layer is
3 soft copper monofilament.Copper content is 99.99% or more in the annealed copper strand wire.A diameter of φ of the soft copper monofilament of the annealed copper strand wire
0.68mm.There is gap between each twisted wire layer, soft copper monofilament, MF860F anti-corrosion sealants are filled in the gap.
The above-mentioned preparation method for high-speed railway and the high intensity annealed copper strand wire of subway contact net, including following step
Suddenly：（1）On draw melting copper：Electrolytic copper plate is added in main frequency furnace, 1120 DEG C -1200 DEG C of melting copper coolant-temperature gage, charcoal is covered on surface
Oxygen barrier oxygen uptake, water is every cooling continuous up-casting copper bar；
（2）Isometrical double extruding：Isometrical double extruding are carried out to the continuous up-casting bar that step 1 obtains, extrusion die is heated to 600
DEG C, soaking time 5-15 minutes squeezes temperature within the scope of 650 DEG C, and the cooling temperature of pressure ram ensures that pressure ram fills at 45 DEG C
Divide cooling；
（3）Y type cold rollings：Isometrical double pressure rams are sent into milling trains and carry out cold rollings, deflection 70%, cooling water pressure≤0.5MPa,
Hauling speed≤1200RMP, rolled bar are air-cooled to room temperature；
（4）11 grades of cold drawings：By the product of step 3 by 11 cold drawings, it is coated with grease, per pass drawing deformation amount exists
Between 30%, drawing coolant liquid concentration keeps alkalinity≤10%, ensures that surface will not severe oxidation；
（5）13 grades of cold drawings：By the product of step 4 by 13 cold drawings, online annealing simultaneously when drawing monofilament, per pass
Drawing deformation amount is between 20%；For drawing speed between 500m/min, drawing coolant liquid concentration keeps alkalinity≤10%；
（6）Twisted sub-thread：By the soft copper monofilament after drawing, it is twisted into sub-thread strand, twisting speed 1300r/min；
（7）Multiply twists again：Sub-thread twisted wire is twisted into whole stock annealed copper strand wire, traction and take-up speed 1200r/min again.
Product is prepared and passes through routine test：The high 230MPa of monofilament tensile strength, the pull-off force of sub-thread twisted wire are
0.95KN, whole pull-off force 25.69KN, product conductivity 100%.
In addition to the implementation, the utility model further includes having other embodiment, all to use equivalents or equivalent
The technical solution that alternative is formed, should all fall within the protection domain of the utility model claims.
Claims (3)
1. a kind of high intensity annealed copper strand wire for high-speed railway and subway contact net, which is characterized in that the high intensity soft copper
Twisted wire for being electrically connected of high-speed railway and overlap in subway contact net and track switch place, laterally electrical connection, ground connection company
It connects；The annealed copper strand wire is 15 lists with multilayered structure made of being twisted again by more sub-thread twisted wires, wherein annealed copper strand wire outer layer
Stock twisted wire, annealed copper strand wire middle level are 9 sub-thread twisted wires, and annealed copper strand wire internal layer is 3 sub-thread twisted wires；The sub-thread twisted wire have by
The double-layer structure that more soft copper monofilament are twisted, wherein sub-thread twisted wire outer layer are 9 soft copper monofilament, and sub-thread twisted wire internal layer is 3
Root soft copper monofilament.
2. the high intensity annealed copper strand wire according to claim 1 for high-speed railway and subway contact net, which is characterized in that
Between a diameter of φ 0.68mm of the soft copper monofilament of the annealed copper strand wire, tensile strength 230MPa-260MPa.
3. the high intensity annealed copper strand wire according to claim 1 for high-speed railway and subway contact net, which is characterized in that
There is gap between each twisted wire layer, soft copper monofilament, anti-corrosion material is filled in the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820173311.1U CN207852381U (en) | 2018-02-01 | 2018-02-01 | High intensity annealed copper strand wire for high-speed railway and subway contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820173311.1U CN207852381U (en) | 2018-02-01 | 2018-02-01 | High intensity annealed copper strand wire for high-speed railway and subway contact net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852381U true CN207852381U (en) | 2018-09-11 |
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ID=63414164
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820173311.1U Active CN207852381U (en) | 2018-02-01 | 2018-02-01 | High intensity annealed copper strand wire for high-speed railway and subway contact net |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198667A (en) * | 2018-02-01 | 2018-06-22 | 江阴电工合金股份有限公司 | For the preparation method of high-speed railway and the high intensity annealed copper strand wire of subway contact net |
-
2018
- 2018-02-01 CN CN201820173311.1U patent/CN207852381U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198667A (en) * | 2018-02-01 | 2018-06-22 | 江阴电工合金股份有限公司 | For the preparation method of high-speed railway and the high intensity annealed copper strand wire of subway contact net |
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