CN201673694U - Tin-plated copper-magnesium alloy contact line for electrified railway contact net - Google Patents
Tin-plated copper-magnesium alloy contact line for electrified railway contact net Download PDFInfo
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- CN201673694U CN201673694U CN2010202187560U CN201020218756U CN201673694U CN 201673694 U CN201673694 U CN 201673694U CN 2010202187560 U CN2010202187560 U CN 2010202187560U CN 201020218756 U CN201020218756 U CN 201020218756U CN 201673694 U CN201673694 U CN 201673694U
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- copper
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- magnesium alloy
- tin
- contact line
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Abstract
The utility model relates to a tin-plated copper-magnesium alloy contract line for an electrified railway contact net. The contact line comprises a contact line body (1) and is characterized in that: the contact line body (1) is a pear-shaped; both sides of the contact line body (1) are provided with grooves (1.1); the contact line body is made of a copper-magnesium alloy; and a tin coating (2) is formed on the surface of the contact line body (1). In the tin-plated copper-magnesium alloy contract line for the electrified railway contact net, the tin coating is electroplated on the surface of the copper contact line so that electric conduction effect is ensured, copper is prevented from being directly contacted with an aluminum conductor, an environment for the production of electrolyte is eliminated and corrosion resistance is improved; meanwhile, the differences between the elastic modulus and the coefficients of thermal expansion of native copper and aluminum are reduced, contact resistance is reduced and the production of local high temperature is prevented so that the safety of the railway contact net is ensured; and the conventional pure copper material is replaced by the copper-magnesium alloy so that corrosion resistance and electric conductivity are further improved.
Description
(1) technical field
The utility model relates to a kind of electrification railway contact net tin-coated copper magnesium alloy 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.And the baffler that contacts with contact line uses aluminum products in a large number, when the copper contact wire directly is connected with aluminium conductor, the contact-making surface of these two kinds of metals very easily forms electrolyte under the effect of water in air branch, carbon dioxide and other impurity, thereby what form is that negative pole, copper are anodal primary cell with aluminium, make aluminium produce couple corrosion, cause the contact resistance of copper, aluminium junction to increase.In addition,, be in operation after cold cycling (energising and outage) repeatedly, can make the contact point place produce bigger gap and influence contact, also increased contact resistance because the modulus of elasticity and the thermal coefficient of expansion of copper, aluminium differ greatly.The increase of contact resistance, the temperature that will cause in service raises.Corrosion oxidation will aggravate under the high temperature, produces vicious circle, and quality of connection is further worsened, and causes the contact point temperature too high even accident such as can smolder, burn at last, causes whole contact net system paralysis.Therefore be necessary to design a kind of novel contact wire that can the contact corrosion of fine solution copper aluminium, thereby guarantee railway contact line safety.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of burn into that prevents to guarantee the electrification railway contact net tin-coated copper magnesium alloy contact wire of railway contact line safety.
The purpose of this utility model is achieved in that a kind of electrification railway contact net tin-coated copper magnesium alloy contact wire, it comprises the contact wire body, it is characterized in that: described contact wire body is Pear-Shaped, both sides are provided with groove, described contact wire body material is a copper magnesium alloy, and described contact wire body surface is provided with tin coating.
The utility model electrification railway contact net with the beneficial effect of tin-coated copper magnesium alloy contact wire is: at copper contact wire electroplating surface one deck tin coating, when guaranteeing conductive effect, completely cut off and copperly directly contacted, eliminated the environment of the liquid that produces electrolysis, improved corrosion resistance with aluminium conductor; Dwindled the poor of the modulus of elasticity of native copper, aluminium and thermal coefficient of expansion simultaneously, reduce contact resistance, prevent the generation of localized hyperthermia, thereby guaranteed railway contact line safety, adopt copper magnesium alloy to replace conventional fine copper material, further improved antiseptic property and electric conductivity.
(4) description of drawings
Fig. 1 is the utility model electrification railway contact net tin-coated copper magnesium alloy contact wire structural representation.
Among the figure: contact wire body 1, groove 1.1, tin coating 2.
(5) embodiment
Referring to Fig. 1, a kind of electrification railway contact net tin-coated copper magnesium alloy contact wire that the utility model relates to, comprise 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 copper magnesium alloy, and described contact wire body 1 surface forms tin coating 2 by electroplating processes.
Claims (1)
1. electrification railway contact net tin-coated copper magnesium alloy contact wire, it comprises contact wire body (1), it is characterized in that: described contact wire body (1) is Pear-Shaped, both sides are provided with groove (1.1), described contact wire body (1) material is a copper magnesium alloy, and described contact wire body (1) surface is provided with tin coating (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202187560U CN201673694U (en) | 2010-06-02 | 2010-06-02 | Tin-plated copper-magnesium alloy contact line for electrified railway contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202187560U CN201673694U (en) | 2010-06-02 | 2010-06-02 | Tin-plated copper-magnesium alloy contact line for electrified railway contact net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673694U true CN201673694U (en) | 2010-12-15 |
Family
ID=43331103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202187560U Expired - Lifetime CN201673694U (en) | 2010-06-02 | 2010-06-02 | Tin-plated copper-magnesium alloy contact line for electrified railway contact net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673694U (en) |
Cited By (7)
| 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 |
| 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 |
| CN106782766A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of contact line with special-shaped strengthening core |
| CN106782813A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of contact line with strengthening core and carbon-fiber cloth |
| CN106782822A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of contact line with special-shaped strengthening core and carbon-fiber cloth |
| CN106847396A (en) * | 2016-12-15 | 2017-06-13 | 耒阳市诚松新材料有限公司 | A kind of contact line with special-shaped strengthening core pair |
| CN112158107A (en) * | 2020-09-28 | 2021-01-01 | 中铁第一勘察设计院集团有限公司 | Electric phase-splitting device for contact network |
-
2010
- 2010-06-02 CN CN2010202187560U patent/CN201673694U/en not_active Expired - Lifetime
Cited By (7)
| 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 |
| 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 |
| CN106782766A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of contact line with special-shaped strengthening core |
| CN106782813A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of contact line with strengthening core and carbon-fiber cloth |
| CN106782822A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of contact line with special-shaped strengthening core and carbon-fiber cloth |
| CN106847396A (en) * | 2016-12-15 | 2017-06-13 | 耒阳市诚松新材料有限公司 | A kind of contact line with special-shaped strengthening core pair |
| CN112158107A (en) * | 2020-09-28 | 2021-01-01 | 中铁第一勘察设计院集团有限公司 | Electric phase-splitting device for contact network |
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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 |
Granted publication date: 20101215 |
|
| CX01 | Expiry of patent term |