CN205523765U - A dropper line for electronic railway connecting net - Google Patents
A dropper line for electronic railway connecting net Download PDFInfo
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- CN205523765U CN205523765U CN201620236368.2U CN201620236368U CN205523765U CN 205523765 U CN205523765 U CN 205523765U CN 201620236368 U CN201620236368 U CN 201620236368U CN 205523765 U CN205523765 U CN 205523765U
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- dropper line
- dropper
- matrix
- contact net
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Abstract
The utility model provides a dropper line for electronic railway connecting net, the easy intensity of being corroded and causing of current dropper line existence, the problem that fatigue resistance descends can be solved to it, it is formed by the transposition of several dropper line monofilament, and dropper line monofilament is metallic copper line base member, and metallic copper line base member surface plates the tin coating as the anticorrosive coating.
Description
Technical field
This utility model relates to electrification railway contact net technical field, a kind of dropper line for electrification railway contact net.
Background technology
China railways line is very long, and the environment of Along Railway is changeable, and the bare copper wire that the dropper line being currently used for China's electrification railway contact net is not made any process by surface is made, it is easily corroded in coastal salt fog, industrial pollution and moist tunnel environment, thus cause the intensity of dropper line, fatigue performance to decline, easily cause dropper line fatigue fracture, harm railway operation safety time serious.
Utility model content
For the problems referred to above, this utility model provides a kind of dropper line for electrification railway contact net, the problem that its intensity that can solve easily being corroded of existing dropper line existence and cause, fatigue performance decline.
Its technical scheme is, a kind of dropper line for electrification railway contact net, and it is formed by several dropper line monofilament are stranded, and described dropper line monofilament is copper lines matrix, and described copper lines outer surface of matrix is coated with anticorrosive coat, and described anticorrosive coat is tin coating.
Further, the thickness of described tin coating is 0.5～5 μm, and in described tin coating, the mass percent of tin element is no less than 60%.
Further, the cross-sectional area of described dropper line is 10～16mm2。
Further, described copper lines matrix replaces with copper magnesium alloy line matrix.
Further, a diameter of the 0.5～0.7mm of described copper magnesium alloy line matrix, the intensity of described copper magnesium alloy line matrix is more than 620Mpa, and conductivity is more than 75%IACS, and alloy oxygen content is at below 4ppm.
A kind of dropper line for electrification railway contact net of the present utility model; the outer surface of its dropper line monofilament is coated with one layer of tin coating; this tin coating compact structure; multiple corrosion attack can be stood thus effectively protect internal copper wire matrix; extend the service life of dropper line under special environment; ensure that dropper line strength, fatigue performance meet and use requirement, it is ensured that the operation safety of railway；The thickness mass percent of tin element in 0.5～5 μm and tin coating controlling tin coating is no less than 60%, both can guarantee that tin coating can play effective antisepsis, can guarantee that again tin coating thickness will not strengthen the deadweight of dropper line because of the thickest, further ensure that the intensity of dropper line, fatigue performance meet use requirement；And dropper line monofilament uses copper magnesium alloy, it is possible to be effectively improved the intensity of dropper line, toughness, further ensure that its intensity of dropper line, fatigue performance meet and use requirement, extend the service life of dropper line.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of a kind of dropper line monofilament for electrification railway contact net of this utility model；
Fig. 2 is the schematic cross-section of the embodiment of a kind of dropper line for electrification railway contact net of this utility model；
Fig. 3 is the schematic flow sheet of the processing dropper using a kind of dropper line for electrification railway contact net of this utility model.
Wherein, 1-dropper line monofilament, 2-anticorrosive coat.
Detailed description of the invention
A kind of dropper line for electrification railway contact net, it is formed by several dropper line monofilament are stranded, see Fig. 2, in the present embodiment, dropper line is formed by 7 dropper line monofilament 1 are stranded, wherein dropper line monofilament 1 is copper lines matrix, seeing that Fig. 1, copper lines outer surface of matrix are coated with anticorrosive coat 2, anticorrosive coat 2 is tin coating；The thickness of tin coating is 0.5～5 μm, and in tin coating, the mass percent of tin element is no less than 60%；The cross-sectional area of dropper line is 10～16mm2。
In order to improve the intensity of dropper line, toughness, dropper line monofilament 1 in above-described embodiment is replaced by copper magnesium alloy line matrix, wherein a diameter of the 0.5～0.7mm of copper magnesium alloy line, and the intensity of copper magnesium alloy line is more than 620Mpa, conductivity is more than 75%IACS, and alloy oxygen content is at below 4ppm；In the copper magnesium alloy line matrix that gross mass number is 100 parts, magnesium elements mass fraction accounts for 0.1 ~ 0.5 part, and impurity mass fraction is less than 0.5 part, and surplus is copper.
Process a kind of dropper line for electrification railway contact net, draw smelting technology on initially with and prepare dropper line monofilament, then carry out hot tinning process to the outer surface of dropper line monofilament thus form a layer thickness at dropper line monofilament outer surface being 0.5～5 μm tin coatings by tin plating mould, and ensure in tin coating the mass percent of tin element no less than 60%, then the dropper line monofilament of the most tin plating process is carried out the stranded cross-sectional area that obtains of destressing is 10～16mm2Dropper line, finally dropper line is carried out destressing process；The tin plating temperature that wherein hot tinning processes is 210 DEG C～270 DEG C；Wherein, dropper line monofilament is copper conductor matrix or copper magnesium alloy line matrix.The processing of copper magnesium gold thread matrix, first prepares copper magnesium alloy casting bar, then copper magnesium alloy is cast bar is processed as copper magnesium alloy line matrix, see Fig. 3, after the dropper line above-mentioned processing obtained assembles with dropper adnexa, i.e. form dropper.
Claims (5)
1., for a dropper line for electrification railway contact net, it is formed by several dropper line monofilament are stranded, it is characterised in that: described dropper line monofilament includes that copper lines matrix, described copper lines outer surface of matrix are coated with anticorrosive coat, and described anticorrosive coat is tin coating.
A kind of dropper line for electrification railway contact net the most according to claim 1, it is characterised in that: the thickness of described tin coating is 0.5～5 μm, and in described tin coating, the mass percent of tin element is no less than 60%.
A kind of dropper line for electrification railway contact net the most according to claim 2, it is characterised in that: the cross-sectional area of described dropper line is 10～16mm2。
A kind of dropper line for electrification railway contact net the most according to claim 3, it is characterised in that: described copper lines matrix replaces with copper magnesium alloy line matrix.
A kind of dropper line for electrification railway contact net the most according to claim 4, it is characterized in that: a diameter of the 0.5～0.7mm of described copper magnesium alloy line matrix, the intensity of described copper magnesium alloy line matrix is more than 620Mpa, and conductivity is more than 75%IACS, and alloy oxygen content is at below 4ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620236368.2U CN205523765U (en) | 2016-03-26 | 2016-03-26 | A dropper line for electronic railway connecting net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620236368.2U CN205523765U (en) | 2016-03-26 | 2016-03-26 | A dropper line for electronic railway connecting net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205523765U true CN205523765U (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620236368.2U Active CN205523765U (en) | 2016-03-26 | 2016-03-26 | A dropper line for electronic railway connecting net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205523765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818713A (en) * | 2016-03-26 | 2016-08-03 | 无锡超洲科技有限公司 | Hanging string used for electrified railway overhead line system and machining technology of hanging string |
-
2016
- 2016-03-26 CN CN201620236368.2U patent/CN205523765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818713A (en) * | 2016-03-26 | 2016-08-03 | 无锡超洲科技有限公司 | Hanging string used for electrified railway overhead line system and machining technology of hanging string |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |