CN201673693U - Copper-coated invar-steel contact line used for contact system of electrified railway - Google Patents
Copper-coated invar-steel contact line used for contact system of electrified railway Download PDFInfo
- Publication number
- CN201673693U CN201673693U CN2010202187433U CN201020218743U CN201673693U CN 201673693 U CN201673693 U CN 201673693U CN 2010202187433 U CN2010202187433 U CN 2010202187433U CN 201020218743 U CN201020218743 U CN 201020218743U CN 201673693 U CN201673693 U CN 201673693U
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- CN
- China
- Prior art keywords
- copper
- steel
- contact line
- invar
- coated
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a copper-coated invar-steel contact line used for a contact system of an electrified railway, which comprises a contact line body (1), the contact line body (1) is gourd-shaped, grooves (1.1) are arranged at two side of the contact line body (1), and the contact line body (1) is made of pure copper; and the copper-coated invar steel contact line is characterized in that a steel core (2) is arranged in the contact line body (1) and made of invar steel, and the section thereof is round. The copper-coated invar steel contact line not only has the mechanical performances of high strength and high-temperature softening resistance by adopting the invar steel, but also has the electrical performances of high conductivity and low contact resistance by adopting copper material. The invar steel has lower coefficient of thermal expansion, therefore, in a using environment of large day-night temperature difference, the danger that the copper and the steel are separated from each other can not occur, and the service life of the copper-coated invar-steel contact line is prolonged. The invar steel is higher in tensile strength; therefore, the application safety factor of the copper-coated invar-steel contact line is increased. The copper-coated invar-steel contact line has the advantages of simple structure, long service life and lower cost, and can be industrially produced easily.
Description
(1) technical field
The utility model relates to a kind of electrification railway contact net copper-clad invar contact wire.
(2) background technology
Continuous speed-raising along with electric railway and urban track traffic, requirement to contact line is more and more higher, not only require contact wire to have advantages of higher tensile strength, and require it to have excellent conducting performance, to satisfy the big current load of electric express locomotive, to guarantee the speed and the safety of train operation.Condition such as abominable at weather conditions such as China plateau, deserts, that day and night temperature is big, contact wire tensile strength should be greater than 500Mpa, and traditional fine copper contact wire is difficult to meet the demands on intensity, high temperature resistant softening mechanical performance.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of simple in structure, life-span is long, be easy to suitability for industrialized production, lower-cost electrification railway contact net copper-clad invar contact wire, it both has high strength, high temperature resistant softening mechanical performance, has conductance height, electrical property that contact resistance is little again.
The purpose of this utility model is achieved in that a kind of electrification railway contact net copper-clad invar contact wire, it comprises the contact wire body, described this body section of contact wire is Pear-Shaped, both sides are provided with groove, described contact wire body material is a fine copper, it is characterized in that: be provided with steel core in the described contact wire body, described steel core is the invar steel core, and its section is rounded.
The utility model electrification railway contact net with the beneficial effect of copper-clad invar contact wire is:
The utility model contact wire had both had invar high strength, high temperature resistant softening mechanical performance, had copper material conductance height, electrical property that contact resistance is little again concurrently.And,, improved the useful life of copper-clad invar contact wire so in the big environment for use of day and night temperature, the danger of copper and steel delamination can not occur because invar has less thermal coefficient of expansion.Because invar has advantages of higher tensile strength, so the coefficient safe in utilization of copper-clad invar contact wire increases.It is simple in structure, and the life-span is long, is easy to suitability for industrialized production, and cost is lower.
(4) description of drawings
Fig. 1 is the utility model electrification railway contact net copper-clad invar contact wire structural representation.
Among the figure: contact wire body 1, groove 1.1, steel core 2.
(5) embodiment
Referring to Fig. 1, a kind of electrification railway contact net that the utility model relates to copper-clad invar contact wire, comprise contact wire body 1, described contact wire body 1 section is Pear-Shaped, both sides are provided with groove 1.1, and described contact wire body 1 material is a fine copper, is provided with steel core 2 in the described contact wire body 1, described steel core 2 is the invar steel core, and its section is rounded.
During making, adopt the invar steel core, utilize continuous extruder, copper directly is coated on the steel core, extrude from die orifice simultaneously, make copper-clad invar bar base with steel core.Copper-clad invar bar base is carried out drawing, make the copper-clad invar contact wire that has groove.
Claims (1)
1. an electrification railway contact net is with copper-clad invar contact wire, it comprises contact wire body (1), described contact wire body (1) is Pear-Shaped, both sides are provided with groove (1.1), described contact wire body (1) material is a fine copper, it is characterized in that: be provided with steel core (2) in the described contact wire body (1), described steel core (2) is the invar steel core, and its section is rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202187433U CN201673693U (en) | 2010-06-02 | 2010-06-02 | Copper-coated invar-steel contact line used for contact system of electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202187433U CN201673693U (en) | 2010-06-02 | 2010-06-02 | Copper-coated invar-steel contact line used for contact system of electrified railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673693U true CN201673693U (en) | 2010-12-15 |
Family
ID=43331102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202187433U Expired - Lifetime CN201673693U (en) | 2010-06-02 | 2010-06-02 | Copper-coated invar-steel contact line used for contact system of electrified railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934132A (en) * | 2015-07-14 | 2015-09-23 | 王文芳 | Copper alloy contact wire and manufacturing method thereof |
| CN106448800A (en) * | 2016-12-15 | 2017-02-22 | 耒阳市诚松新材料有限公司 | Contact wire with reinforcing tube core |
-
2010
- 2010-06-02 CN CN2010202187433U patent/CN201673693U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934132A (en) * | 2015-07-14 | 2015-09-23 | 王文芳 | Copper alloy contact wire and manufacturing method thereof |
| CN106448800A (en) * | 2016-12-15 | 2017-02-22 | 耒阳市诚松新材料有限公司 | Contact wire with reinforcing tube core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |