CN107723504A - A kind of contact line of bronze in use for electrified railroad in and its method for continuous production - Google Patents
A kind of contact line of bronze in use for electrified railroad in and its method for continuous production Download PDFInfo
- Publication number
- CN107723504A CN107723504A CN201710931646.5A CN201710931646A CN107723504A CN 107723504 A CN107723504 A CN 107723504A CN 201710931646 A CN201710931646 A CN 201710931646A CN 107723504 A CN107723504 A CN 107723504A
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- Prior art keywords
- contact line
- bronze
- copper
- tin
- tin alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/02—Single bars, rods, wires, or strips
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of contact line of bronze in use for electrified railroad in and its method for continuous production, the alloy of copper tin alloy contact line includes metallic tin, metallic copper and other impurities, and each component weight ratio is：Metallic tin 0.195~0.435%, metallic copper 99.755~99.515%, other impurities 0.05%.Produced for different model copper tin alloy contact line, control signal bronze pressure ram tin element content range so that signal bronze pressure ram can carry out flash butt welding, and then realize continuous production.The present invention can ensure that copper tin alloy contact line pressure ram continues one-time success rate and production efficiency.
Description
【Technical field】
The invention belongs to copper alloy manufacture field, is related to a kind of contact line of bronze in use for electrified railroad in and its continuous system
Make method.
【Background technology】
Contact line of bronze in use for electrified railroad in product is the important component of high-speed electric railway trailer system,
Copper tin alloy contact line is a kind of bare wire cable for transmitting electricity, and electric current is transferred into electrical equipment by pantograph.Closed in copper and tin
In the production process of golden contact line product, to ensure the continuity of Product processing, the line base of copper tin alloy contact line used continues
It is crucial.
Then the primary hand section welding to continue, the welding of signal bronze pressure ram generally use the side of flash butt welding at present
Formula.Make two working section gentle touchdowns first, form a large amount of contact points, electric current by when, contact point is melted into connection two
The liquid metals lintel of end face.Because the current density in liquid lintel is high, evaporate the liquid metals in lintel, lintel it is quick-fried
It is broken.With being slowly advanced for dynamic clamp, lintel also constantly produces and explosion.In the presence of steam pressure and electromagnetic force, liquid
Metal particle constantly ejects between interface.Form spark torrent-flash of light.At the end of flash stage, workpiece is applied immediately
Fill up enough top pressure, seal workpiece end face gap and liquid metals lintel explosion after the burner that leaves, while extruding end
The liquid metal and oxide inclusion in face, the plastic metal of cleaning is in close contact, and connector area is produced certain plasticity and become
Shape, to promote the progress of recrystallization, form common crystal grain, the firm joint of acquisition.
Because metallic tin is more active, is exposed in an atmosphere under hot conditions, easily form powdered tin ash.Copper and tin is closed
Golden tin element too high levels, easily occurring phenomena such as joint is fluffy, scaling-off during flash butt welding, having a strong impact on joint matter
Amount, reduce the one-time success rate that continues, substantially reduce production efficiency；Signal bronze tin element content is too low to cause signal bronze power
Hydraulic performance decline is learned, the copper tin alloy contact line tensile strength produced can not meet that contact line of bronze in use for electrified railroad in will
Ask.So signal bronze tin element content directly influences signal bronze pressure ram connecting quality, and then influence production effect
Rate and product quality.
【The content of the invention】
A kind of the shortcomings that it is an object of the invention to overcome above-mentioned prior art, there is provided bronze in use for electrified railroad in
Contact line and its method for continuous production, by controlling signal bronze kind tin element content, improve copper tin alloy contact line pressure ram
Continue manufacture method.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of contact line of bronze in use for electrified railroad in, described copper tin alloy contact line are signal bronze；Wherein, tin
Percent mass ratio be 0.195~0.435%, the mass percent of copper is 99.515~99.755%, impurity quality percentage
Number is not more than 0.05%；The copper tin alloy contact line of difference processing nominal section, controls different tin element content range.
As a further improvement on the present invention, it is 85mm to process nominal section2Copper tin alloy contact line, described copper and tin are closed
Each component mass percent is 0.195~0.315% tin, 99.635~99.755% bronze medals and 0~0.05% impurity in gold；
Processing nominal section is 110mm2Copper tin alloy contact line, each component mass percent is in described signal bronze
0.205~0.355% tin, 99.595~99.745% bronze medals and 0~0.05% impurity；
Processing nominal section is 120mm2Copper tin alloy contact line, each component mass percent is in described signal bronze
0.215~0.385% tin, 99.565~99.735% bronze medals and 0~0.05% impurity；
Processing nominal section is 150mm2Copper tin alloy contact line, each component mass percent is in described signal bronze
0.225~0.435% tin, 99.515~99.725% bronze medals and 0~0.05% impurity.
A kind of method for continuous production of contact line of bronze in use for electrified railroad in, comprises the following steps：
First tough cathode is made to draw in stove in raw material addition and melted, then will be added to by metallic tin in copper liquid, use graphite rod
Stirring makes to start after alloying component is uniform to draw base bar；Bar will be drawn on the stanniferous alloy of upper extraction again and be sent into continuous extruder,
20mm pressure ram is made, is then connect extruding boom end using flash butt welding with drawbench pay off rack pressure ram afterbody
It is continuous, the place of continuing is marked, treats that copper tin alloy contact line finished product, which is made, by the pressure ram that continues cuts, and continues drawing and copper is made
Tin alloy contact line finished product.
Relative to prior art, the present invention has advantages below：
In the alloy of the contact line of bronze in use for electrified railroad in of the present invention, the percent mass ratio of tin is from original
0.15~0.55% by being preferably 0.195~0.435%, and the mass percent of copper is 99.515~99.755%, impurity matter
Measure percentage and be not more than 0.05%.By selecting suitable Theil indices section in original scope so that manufactured copper and tin is closed
Golden pressure ram can carry out flash butt welding, and then realize continuous production.And the flash butt welding copper tin alloy contact line prepared
Meet the physicochemical property requirement of electric railway, while production efficiency improves, product quality is unaffected, meets
TB/T 2809-2005《Electric railway copper and copper alloy contact wire》Regulation.
Further, for different model copper tin alloy contact line production signal bronze pressure ram, different tin elements are controlled
Content range, control pressure ram, which continues, one-time success rate and to continue stability, ensure copper tin alloy contact line continuous production and
Production efficiency.
The method for continuous production of the present invention, by tin element in Precise control different model copper tin alloy contact line, is carried
High signal bronze pressure ram connecting quality and one-time success rate, it is former to signal bronze by the way of flash butt welding in production process
Material bar is continued, and ensures copper tin alloy contact line continuous production and production efficiency.
【Embodiment】
With reference to embodiment, the embodiment of the present invention is further described.Following examples are only used for more
Add and clearly demonstrate technical scheme, and can not be limited the scope of the invention with this：
Embodiment 1
Cu-CATH-1 (account for total amount 99.755%) is made to draw in stove in raw material addition by the present invention first to be melted, and is then pressed
It according to production technology, then will be added to by weight for 0.195% metallic tin in copper liquid, make alloying component equal with graphite rod stirring
Draw base bar on starting after even.Bar will be drawn on the stanniferous alloy of upper extraction again it is sent into continuous extruder and 20mm pressure ram is made,
Then extruding boom end is continued with drawbench pay off rack pressure ram afterbody with flash butt welding, the place of continuing is marked,
Treat that copper tin alloy contact line finished product, which is made, by the pressure ram that continues cuts, and continues drawing and 85mm is made2Copper tin alloy contact line into
Product.
Embodiment 2
Cu-CATH-1 (account for total amount 99.745%) is made to draw in stove in raw material addition by the present invention first to be melted, and is then pressed
It according to production technology, then will be added to by weight for 0.205% metallic tin in copper liquid, make alloying component equal with graphite rod stirring
Draw base bar on starting after even.Bar will be drawn on the stanniferous alloy of upper extraction again it is sent into continuous extruder and 20mm pressure ram is made,
Then extruding boom end is continued with drawbench pay off rack pressure ram afterbody with flash butt welding, the place of continuing is marked,
Treat that copper tin alloy contact line finished product, which is made, by the pressure ram that continues cuts, and continues drawing and 110mm is made2Copper tin alloy contact line into
Product.
Embodiment 3
Cu-CATH-1 (account for total amount 99.735%) is made to draw in stove in raw material addition by the present invention first to be melted, and is then pressed
It according to production technology, then will be added to by weight for 0.215% metallic tin in copper liquid, make alloying component equal with graphite rod stirring
Draw base bar on starting after even.Bar will be drawn on the stanniferous alloy of upper extraction again it is sent into continuous extruder and 20mm pressure ram is made,
Then extruding boom end is continued with drawbench pay off rack pressure ram afterbody with flash butt welding, the place of continuing is marked,
Treat that copper tin alloy contact line finished product, which is made, by the pressure ram that continues cuts, and continues drawing and 120mm is made2Copper tin alloy contact line into
Product.
Embodiment 4
Cu-CATH-1 (account for total amount 99.725%) is made to draw in stove in raw material addition by the present invention first to be melted, and is then pressed
According to production technology, then by weight than being added to for 0.225% metallic tin in copper liquid, make alloying component uniform with graphite rod stirring
After start on draw base bar.Bar will be drawn on the stanniferous alloy of upper extraction again it is sent into continuous extruder and 30mm pressure ram is made, and
Base boom end is continued with drawbench pay off rack pressure ram afterbody with flash butt welding afterwards, the place of continuing is marked, treat by
The cutting of copper tin alloy contact line finished product is made in the place's of continuing pressure ram, continues drawing and 150mm is made2Copper tin alloy contact line finished product.
The embodiment of other alloys composition given below, its preparation method and embodiment 4 are identical.
Checking test：
CTS120 copper tin alloy contact lines pressure ram both ends welding process is produced in tin element content range of the present invention
It is middle without obvious slag-off phenomenon；Weld and lotus shape, joint tissue tight, without loose scaling-off, obscission are presented at rear joint；Nothing
Joint CTS120 copper tin alloy contact lines pressure ram pull-off force is not less than 95KN, welds pull-off force at rear joint and is connect not less than nothing
The 90% of head signal bronze pressure ram, pulling force is 30KN during equipment continuous drawing, meets continuous production requirement.
Copper tin alloy contact line finished product tensile strength of the non junction CTS120 copper tin alloy contact lines after continuous drawing
450MPa, weld copper tin alloy contact line finished product tension of the CTS120 copper tin alloy contact lines after continuous drawing at rear joint
Intensity 440MPa.TB/T 2809-2005《Electric railway copper and copper alloy contact wire》Regulation, CTS120 signal bronzes connect
Touch line tensile strength and be not less than 420MPa, I meets TB/T 2809-2005's by the CTS120 copper tin alloy contact lines of company's production
Regulation.(note：This welding process continues problem just for solving quantity-produced, need to carry out this welding section when being drawn to finished product
Cut, ensure the final product quality of electric railway copper and copper alloy contact wire)
More than, only presently preferred embodiments of the present invention, the practical range of the present invention is not limited only to, it is all according to patent of the present invention
The equivalence changes and modification that the content of scope is done, it all should be the technology category of the present invention.
Claims (6)
- A kind of 1. contact line of bronze in use for electrified railroad in, it is characterised in that：Described copper tin alloy contact line closes for copper and tin Gold；Wherein, the mass percent of tin is 0.195~0.435%, and the mass percent of copper is 99.515~99.755%, impurity Mass percent is not more than 0.05%；The copper tin alloy contact line of difference processing nominal section, controls different tin constituent content model Enclose.
- A kind of 2. contact line of bronze in use for electrified railroad according to claim 1, it is characterised in that：Processing is nominal to cut Face is 85mm2Copper tin alloy contact line, in described signal bronze each component mass percent be 0.195~0.315% tin, 99.635~99.755% bronze medals and 0~0.05% impurity.
- A kind of 3. contact line of bronze in use for electrified railroad according to claim 1, it is characterised in that：Processing is nominal to cut Face is 110mm2Copper tin alloy contact line, in described signal bronze each component mass percent be 0.205~0.355% tin, 99.595~99.745% bronze medals and 0~0.05% impurity.
- A kind of 4. contact line of bronze in use for electrified railroad according to claim 1, it is characterised in that：Processing is nominal to cut Face is 120mm2Copper tin alloy contact line, in described signal bronze each component mass percent be 0.215~0.385% tin, 99.565~99.735% bronze medal and 0~0.05% impurity.
- A kind of 5. contact line of bronze in use for electrified railroad according to claim 1, it is characterised in that：Processing is nominal to cut Face is 150mm2Copper tin alloy contact line, in described signal bronze each component mass percent be 0.225~0.435% tin, 99.515~99.725% bronze medals and 0~0.05% impurity.
- 6. the method for continuous production of the contact line of bronze in use for electrified railroad in described in claim 1 to 5 any one, it is special Sign is, comprises the following steps：First tough cathode is made to draw in stove in raw material addition and melted, then will be added to by metallic tin in copper liquid, stirred with graphite rod Make to start after alloying component is uniform to draw base bar；Bar will be drawn on the stanniferous alloy of upper extraction again and be sent into continuous extruder, be made 20mm pressure ram, then extruding boom end is continued with drawbench pay off rack pressure ram afterbody using flash butt welding, it is right The place of continuing is marked, and treats that copper tin alloy contact line finished product, which is made, by the pressure ram that continues cuts, continues drawing and copper and tin conjunction is made Golden contact line finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931646.5A CN107723504B (en) | 2017-10-09 | 2017-10-09 | A kind of contact line of bronze in use for electrified railroad in and its method for continuous production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931646.5A CN107723504B (en) | 2017-10-09 | 2017-10-09 | A kind of contact line of bronze in use for electrified railroad in and its method for continuous production |
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| Publication Number | Publication Date |
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| CN107723504A true CN107723504A (en) | 2018-02-23 |
| CN107723504B CN107723504B (en) | 2019-08-09 |
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| CN201710931646.5A Active CN107723504B (en) | 2017-10-09 | 2017-10-09 | A kind of contact line of bronze in use for electrified railroad in and its method for continuous production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527867A (en) * | 2019-09-16 | 2019-12-03 | 铜陵有色金属集团股份有限公司 | A kind of low tin-copper alloy and preparation method thereof that anaerobic is copper-based |
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| CN1501409A (en) * | 2002-11-13 | 2004-06-02 | 住友电气工业株式会社 | Copper alloy conductor and method of fabricating the same |
| CN1811997A (en) * | 2005-12-26 | 2006-08-02 | 云南铜业股份有限公司 | Copper-tin alloy conducting wire and producing method thereof |
| CN101763910A (en) * | 2008-12-24 | 2010-06-30 | 沈阳北恒日立铜材有限公司 | Low tin-copper alloy contact wire for electric railway and manufacturing method thereof |
| CN101882478A (en) * | 2010-04-21 | 2010-11-10 | 沈阳北恒日立铜材有限公司 | High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof |
| CN105127233A (en) * | 2015-08-05 | 2015-12-09 | 赣州江钨拉法格高铁铜材有限公司 | Production process for tin-copper alloy contact lines |
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2017
- 2017-10-09 CN CN201710931646.5A patent/CN107723504B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501409A (en) * | 2002-11-13 | 2004-06-02 | 住友电气工业株式会社 | Copper alloy conductor and method of fabricating the same |
| CN1811997A (en) * | 2005-12-26 | 2006-08-02 | 云南铜业股份有限公司 | Copper-tin alloy conducting wire and producing method thereof |
| CN101763910A (en) * | 2008-12-24 | 2010-06-30 | 沈阳北恒日立铜材有限公司 | Low tin-copper alloy contact wire for electric railway and manufacturing method thereof |
| CN101882478A (en) * | 2010-04-21 | 2010-11-10 | 沈阳北恒日立铜材有限公司 | High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof |
| CN105127233A (en) * | 2015-08-05 | 2015-12-09 | 赣州江钨拉法格高铁铜材有限公司 | Production process for tin-copper alloy contact lines |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527867A (en) * | 2019-09-16 | 2019-12-03 | 铜陵有色金属集团股份有限公司 | A kind of low tin-copper alloy and preparation method thereof that anaerobic is copper-based |
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| CN107723504B (en) | 2019-08-09 |
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Address after: No. 7, Tang Xing Road, Xi'an high tech Zone, Shaanxi Province Applicant after: China Xidian Group Limited Address before: No. 7, Tang Xing Road, Xi'an high tech Zone, Shaanxi Province Applicant before: Xian Electric Manufacturing Corp. |
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Effective date of registration: 20210621 Address after: 710082 Daqing Road, Lotus Lake District, Xi'an, Shaanxi Province, No. 12 Patentee after: XI'AN XD CABLE Co.,Ltd. Patentee after: CHINA XD GROUP Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an province high tech Zone No. 7 Tang Xing Lu Patentee before: CHINA XD GROUP Co.,Ltd. |
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