CN101882478B - High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof - Google Patents
High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof Download PDFInfo
- Publication number
- CN101882478B CN101882478B CN201010151822.1A CN201010151822A CN101882478B CN 101882478 B CN101882478 B CN 101882478B CN 201010151822 A CN201010151822 A CN 201010151822A CN 101882478 B CN101882478 B CN 101882478B
- Authority
- CN
- China
- Prior art keywords
- casting
- contact line
- tin alloy
- alloy contact
- copper tin
- 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.)
- Active
Links
Abstract
The invention provides a high-strength copper tin alloy contact line for a high-speed electric railway, and in particular relates to a copper tin alloy which comprises the following components in percentage by mass: 0.50 to 0.85 percent of tin, no more than 0.10 percent of impurity and the balance of copper. The invention also provides a manufacturing method for the high-strength copper tin alloy contact line for the high-speed electric railway. Compared with the prior art, the high-strength copper tin alloy contact line of the invention fills in the gaps in China. Because the high-strength copper tin alloy contact line has a series of advantages, such as high strength, high plasticity, small grain size, simple production process, low cost, big batch size and the like, the high-strength copper tin alloy contact line can be applied to the rapid transit railway of which the speed per hour is 250 to 350 km, is expected to get good economic benefit and social benefit, and greatly promotes development of the electric railway industry in China.
Description
Technical field:
The present invention relates to technical field of nonferrous metal processing, a kind of high-strength copper tin alloy contact line for high-speed electric railway and manufacture method thereof are provided especially.
Background technology:
Now, China's electric railway construction has entered a high-speed developing period, and building speed per hour is the development trend that 250 kilometers/hour and 350 kilometers/hour and above high-speed railway have become Chinese Railway construction.At present, domestic is that the contact nets in electrified railways copper alloy contact wire of 250 kilometers/hour and 350 kilometers/hour and above high-speed railway is mainly copper magnesium alloy contact wire for meeting electric railway speed per hour, copper magnesium alloy contact wire complex manufacturing, the cycle is long, cost is high, batch is little.
Therefore, people expect to obtain a kind of technique effect better for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway.
Summary of the invention:
The object of this invention is to provide a kind of technique effect better for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway.
The invention provides a kind of high-strength copper tin alloy contact line for high-speed electric railway, it is characterized in that: it is specially signal bronze, wherein the mass percentage content of tin is 0.50-0.85%, and impurity summation is not more than 0.10% of mass percentage content, and surplus is copper.
The described high-strength copper tin alloy contact line for high-speed electric railway, the mass percentage content of tin is preferably 0.65-0.75%.
The described high-strength copper tin alloy contact line for high-speed electric railway is specially the 150 nominal crosss high-strength copper tin alloy contact line of (meeting the requirement of standard TB/T 2809-2005).
The present invention is the manufacture method of the claimed described high-strength copper tin alloy contact line for high-speed electric railway also, it is characterized in that: the manufacture method of the described high-strength copper tin alloy contact line for high-speed electric railway requires as follows successively:
One) first produce the signal bronze blank bar that diameter is 25mm-35mm:
1) Cu-CATH-1 is added to melting furnace, the copper liquid temperature in control stove is at 1110～1140 DEG C;
2) liquid metals of fusing flows into holding furnace, holding furnace temperature rise to 1140 DEG C-1160 DEG C;
3) liquid metals of fusing flows into casting ladle from holding furnace, adds metallic tin;
4) tin content starts casting, rolling after qualified; Specific requirement is: casting casting ladle temperature is controlled at 1100-1150 DEG C, and casting speed is 700～850rpm, and cooling water pressure is 0.08～0.45Mpa, obtains strand through cooled and solidified moulding; Strand is carried out to continuous rolling, and controlling into rolling temperature is 760～830 DEG C, controls tandem mill 4-8 passage altogether, and final production goes out the signal bronze blank bar that diameter is 25mm-35mm;
Two) adopt cold working mode, the signal bronze blank bar that is 25mm-35mm by diameter obtains final contact wire finished product with stretch forming apparatus through multi-pass cold drawing; Specific requirement is:
1) the signal bronze blank bar that is first, 25mm-35mm by diameter is drawn into the round bar that diameter is 20.0-19.0mm, cold working rate 36.0-70.53%;
On stretching-machine, draw the copper tin alloy contact line finished product (cold working rate 46.72-51.91%) that obtains 150 nominal crosss, its cold working passage is 4-8 time, and requiring grain size is 0.010-0.015mm, total cold working rate 69.22-84.30%.
The manufacture method of the high-strength copper tin alloy contact line for high-speed electric railway of the present invention, the preferred requirement of the signal bronze blank bar that production diameter is 25mm-35mm is:
1) Cu-CATH-1 is added to melting furnace, furnace atmosphere is monitored in 1110～1140 DEG C at the copper liquid temperature of controlling in stove;
2) liquid metals of fusing flows into holding furnace continuously, when holding furnace temperature rise to 1140 DEG C-1160 DEG C, requires to guarantee that furnace atmosphere is micro-reduction;
3) liquid metals of fusing flows into casting ladle continuously from holding furnace, adopts hello a silk method to add continuously metallic tin silk, and addition is synchronizeed with casting speed, guarantees the uniformity of tin addition, prevents the segregation of tin;
4) after tin content is qualified, start casting, rolling:
Casting machine is five wheeled steel band casting machines, casting ladle casting, and it is trapezoidal obtaining casting cross section through cooled and solidified moulding, basal area is 2300mm
2strand; Strand adopts ellipse-circular hole system while carrying out continuous rolling, frame adopts flat, vertical, and rolled piece is realized without reversing straight line rolling.
In terms of existing technologies, high-strength copper tin alloy contact line of the present invention, has filled up domestic blank.Because high-strength copper tin alloy contact line has the series of advantages such as intensity is high, plasticity good, grain size is little, production technology is simple, cost is low, batch is large, it is the desirable copper tin alloy contact line of high-speed electric railway.
High-strength copper tin alloy contact line of the present invention can be applied on 250 kilometers of speed per hours and 350 kilometers and above high-speed railway, and expection can obtain good economic benefit and social benefit, will greatly promote the development of China's electric railway cause.
Brief description of the drawings:
Fig. 1 is high-strength copper tin alloy contact line production technological process.
Embodiment:
Embodiment 1: for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1140 DEG C-1150 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.65% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1100-1120 DEG C, and casting speed is 750rpm, and cooling water pressure is 0.08～0.25Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 780～820 DEG C, forms signal bronze line blank bar.The special stretching-machine former of four mould contacts wire of producing through inverted stretching-machine and Italian SICTRA company again through multi-pass cold drawing for meeting 33.58 tons of contact wire finished products of desired 150 nominal crosss of high-speed electric railway (meeting the requirement of standard TB/T 2809-2005).
The contact wire finished product that the present embodiment obtains, the result of carrying out Performance Detection is as follows:
Product index: 150 nominal crosss (mass percentage content 0.65% of tin);
Outward appearance: clean, smooth, without firmly curved, crackle etc. and the disproportionate any defect of good process product;
Size: meet the TB/T2809-2005 of the Ministry of Railways;
Tensile strength: average 473.5MPa, minimum 471Mpa; Conductance: average 66.1%, minimum 64.2%.
Embodiment 2: for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1140 DEG C-1155 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.70% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1110-1125 DEG C, and casting speed is 750rpm, and cooling water pressure is 0.10～0.35Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 770～830 DEG C, forms signal bronze line blank bar.Be 33.66 tons of contact wire finished products that meet desired 150 nominal crosss of high-speed electric railway through multi-pass cold drawing through the special stretching-machine former of four mould contacts wire of the production of inverted stretching-machine and Italian SICTRA company again.
The contact wire finished product that the present embodiment obtains, the result of carrying out Performance Detection is as follows:
Product index: 150 nominal crosss (mass percentage content 0.70% of tin);
Outward appearance: clean, smooth, without firmly curved, crackle etc. and the disproportionate any defect of good process product;
Size: meet the TB/T2809-2005 of the Ministry of Railways;
Tensile strength: average 490.2Mpa, minimum 487.1Mpa;
Conductance: average 64.9%, minimum 63.8%.
Embodiment 3: for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1145 DEG C-1160 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.75% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1115-1130 DEG C, and casting speed is 800rpm, and cooling water pressure is 0.15～0.40Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 780～830 DEG C, forms signal bronze line blank bar.Again through inverted stretching-machine and with the special stretching of the four mould contacts wire institute machine former of the production of Italian SICTRA company be to meet 33.78 tons of finished products of 150 nominal cross contact wire that high-speed electric railway requires through multi-pass cold drawing.
The contact wire finished product that the present embodiment obtains, the result of carrying out Performance Detection is as follows:
Product index: 150 nominal crosss (mass percentage content 0.75% of tin);
Outward appearance: clean, smooth, without firmly curved, crackle etc. and the disproportionate any defect of good process product;
Size: meet the TB/T2809-2005 of the Ministry of Railways;
Tensile strength: average 508.6Mpa, minimum 505.8Mpa;
Conductance: average 63.8%, minimum 62.5%.
Embodiment 4: for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1140 DEG C-1150 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.795% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1110-1125 DEG C, and casting speed is 800rpm, and cooling water pressure is 0.15～0.35Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 780～830 DEG C, forms signal bronze line blank bar.Again through the special stretching-machine former of four mould contacts wire of the production of inverted stretching-machine and Italian SICTRA company through multi-pass cold drawing for meeting 32.98 tons of finished products of the desired 150 nominal cross contact wire of high-speed electric railway.
Embodiment 5: for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1140 DEG C-1150 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.51% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1100-1120 DEG C, and casting speed is 750rpm, and cooling water pressure is 0.08～0.25Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 780～820 DEG C, forms signal bronze line blank bar.The special stretching-machine former of four mould contacts wire of producing through inverted stretching-machine and Italian SICTRA company again through multi-pass cold drawing for meeting 33.58 tons of contact wire finished products of desired 150 nominal cross of high-speed electric railway.
The contact wire finished product that the present embodiment obtains, the result of carrying out Performance Detection is as follows:
Product index: 150 nominal crosss (mass percentage content 0.51% of tin);
Outward appearance: clean, smooth, without firmly curved, crackle etc. and the disproportionate any defect of good process product;
Size: meet the TB/T2809-2005 of the Ministry of Railways;
Tensile strength: average 473.5MPa, minimum 471Mpa; Conductance: average 66.1%, minimum 64.2%.
Comparative example 1
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1140 DEG C-1150 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.495% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1110-1125 DEG C, and casting speed is 750rpm, and cooling water pressure is 0.10～0.35Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 780～830 DEG C, forms signal bronze line blank bar.Again through the special stretching-machine former of four mould contacts wire of the production of inverted stretching-machine and Italian SICTRA company through the special 33.66 tons of finished products of 150 cross section contact wire of multi-pass cold drawing electric railway, because the mass percentage content of tin exceeds the scope of 0.50-0.85%, so product does not reach requirement.
Comparative example 2
35 tons of Cu-CATH-1s are added to vertical melting furnace, when holding furnace temperature rise to 1140 DEG C-1155 DEG C, guarantee that furnace atmosphere is micro-reduction, start to produce.The liquid metals of fusing flows into casting ladle continuously through downtand, adopts a method of feeding to be controlled at by weight percentage 0.855% add metallic tin silk at downtand, and addition is synchronizeed with casting speed.Sample analysis, starts casting after tin content is qualified, rolling, and casting ladle temperature is controlled at 1110-1125 DEG C, and casting speed is 750rpm, and cooling water pressure is 0.10～0.25Mpa, obtains strand through cooled and solidified moulding, and casting cross section is trapezoidal, basal area 2300mm
2.Strand is sent in the milling train that the speed of service is 750rpm and is carried out continuous rolling four-pass, and controlling into rolling temperature is 780～820 DEG C, forms signal bronze line blank bar.Again through inverted stretching-machine and with the special stretching-machine former of four mould contacts wire of the production of Italian SICTRA company through the special 32.36 tons of finished products of 150 cross section contact wire of multi-pass cold drawing electric railway, because the mass percentage content of tin exceeds the scope of 0.50-0.85%, so product does not reach requirement.
Embodiment 5: for high-strength copper tin alloy contact line and the manufacture method thereof of high-speed electric railway.
For the high-strength copper tin alloy contact line of high-speed electric railway, it is specially signal bronze, and wherein the mass percentage content of tin is 0.50-0.85%, and impurity summation is not more than 0.10% of mass percentage content, and surplus is copper.
The described high-strength copper tin alloy contact line for high-speed electric railway is specially the high-strength copper tin alloy contact line of 150 nominal crosss.
The manufacture method of the described high-strength copper tin alloy contact line for high-speed electric railway requires as follows successively:
One) first produce the signal bronze blank bar that diameter is 25mm-35mm:
1) Cu-CATH-1 is added to vertical melting furnace, fuel is natural gas, and the copper liquid temperature in control stove is at 1110～1140 DEG C, by being equipped with carbon monoxide analytical instrument to monitor furnace atmosphere;
2) liquid metals of fusing flows into holding furnace continuously through upper chute, and holding furnace is tilting-type, and temperature rise to 1140 DEG C-1160 DEG C, guarantees that furnace atmosphere is micro-reduction;
3) liquid metals of fusing flows into casting ladle from holding furnace continuously through downtand, adopts hello a silk method to add continuously metallic tin silk at downtand, and addition is synchronizeed with casting speed, fully stirs, and guarantees the uniformity of tin addition, prevents the segregation of tin;
4) sample analysis, starts casting, rolling after tin content is qualified; Specific requirement is:
Casting machine is five wheeled steel band casting machines, and casting ladle temperature is controlled at 1100-1150 DEG C, by far infrared control, casting speed is 700～850rpm, and cooling water pressure is 0.08～0.45Mpa, obtains strand through cooled and solidified moulding, casting cross section is trapezoidal, basal area 2300mm
2; Strand is sent in the milling train that the speed of service is 750～850rpm and is carried out continuous rolling, and controlling into rolling temperature is 760～830 DEG C, by far infrared control tandem mill 4-8 passage altogether, adopt ellipse-circular hole system, frame adopts flat, vertical, and rolled piece is realized without reversing straight line rolling, final production
signal bronze blank bar.
Two) adopt the signal bronze blank bar that cold working mode processing diameter is 25mm-35mm, and finally obtain finished product:
1) form signal bronze line blank bar through rolling, then by rational xenotype mold cold working road sub-distribution, with the special stretch forming apparatus of contact wire be the special contact wire finished product of electric railway through multi-pass cold drawing;
First, the signal bronze blank bar that is 25mm-35mm by diameter at inverted stretching-machine is drawn into the round bar that diameter is 20.0-19.0mm (cold working rate 36.0-70.53%), finally on the special four closing mould stretching machines of contact wire that designs and manufactured by Italian Sictra company, drawing is the copper tin alloy contact line finished product (cold working rate 46.72-51.91%) of 150 nominal crosss, its cold working passage is 4-8 time, its grain structure is even, tiny equiax crystal, and grain size is 0.010-0.015mm, so total cold working rate 69.22-84.30%.
2), in above high-strength copper tin alloy contact line production process, its general working rate is 93.43%.By add appropriate metallic tin silk in continuous casting and rolling process, make full use of solution strengthening effect, and follow-up larger cold drawn work hardening effect, can make copper tin alloy contact line obtain larger intensity and good conductance.Gained strand and contact wire all have good microstructure and macro property; In given alloy component range, all can ensure high intensity and conductance by above-mentioned processing technology simultaneously.
In terms of existing technologies, the high-strength copper tin alloy contact line described in the present embodiment, has filled up domestic blank.Because high-strength copper tin alloy contact line has the series of advantages such as intensity is high, plasticity good, grain size is little, production technology is simple, cost is low, batch is large, it is the desirable copper alloy contact wire of high-speed electric railway.Described high-strength copper tin alloy contact line can be applied on the high-speed railway of 250 kilometers of speed per hours and 350 kilometers, and expection can obtain good economic benefit and social benefit, will greatly promote the development of China's electric railway cause.
Claims (1)
1. for a manufacture method for the high-strength copper tin alloy contact line of high-speed electric railway, it is characterized in that: the manufacture method of the described high-strength copper tin alloy contact line for high-speed electric railway requires as follows successively:
One) first produce the signal bronze blank bar that diameter is 25mm-35mm:
1) Cu-CATH-1 is added to melting furnace, furnace atmosphere is monitored in 1110～1140 DEG C at the copper liquid temperature of controlling in stove;
2) liquid metals of fusing flows into holding furnace continuously, when holding furnace temperature rise to 1140 DEG C-1160 DEG C, requires to guarantee that furnace atmosphere is micro-reduction;
3) liquid metals of fusing flows into casting ladle continuously from holding furnace, adopts hello a silk method to add continuously metallic tin silk, and addition is synchronizeed with casting speed, guarantees the uniformity of tin addition, prevents the segregation of tin;
4) tin content starts casting, rolling after qualified; Specific requirement is: casting casting ladle temperature is controlled at 1100-1150 DEG C, and casting speed is 700～850rpm, and cooling water pressure is 0.08～0.45Mpa, obtains strand through cooled and solidified moulding; Strand is carried out to continuous rolling, and controlling into rolling temperature is 760～830 DEG C, controls tandem mill 4-8 passage altogether, and final production goes out the signal bronze blank bar that diameter is 25mm-35mm;
Described casting machine is five wheeled steel band casting machines, casting ladle casting, and it is trapezoidal obtaining casting cross section through cooled and solidified moulding, the strand that basal area is 2300mm2; Strand adopts ellipse-circular hole system while carrying out continuous rolling, frame adopts flat, vertical, and rolled piece is realized without reversing straight line rolling;
Two) adopt cold working mode, the signal bronze blank bar that is 25mm-35mm by diameter obtains final contact wire finished product with stretch forming apparatus through multi-pass cold drawing; Specific requirement is:
1) first, the signal bronze blank bar that is 25mm-35mm by diameter is drawn into the round bar that diameter is 20.0-19.0mm, and cold working rate is 36.0-70.53%;
On stretching-machine, draw the copper tin alloy contact line finished product that obtains 150 nominal crosss, cold working rate 46.72-51.91%, its cold working passage is 4-8 time, requiring grain size is 0.010-0.015mm, total cold working rate 69.22-84.30%; Prepared high-strength copper tin alloy contact line is specially the high-strength copper tin alloy contact line of 150 nominal crosss; Wherein the mass percentage content of tin is 0.65-0.85%, and impurity summation is not more than 0.10% of mass percentage content, and surplus is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010151822.1A CN101882478B (en) | 2010-04-21 | 2010-04-21 | High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010151822.1A CN101882478B (en) | 2010-04-21 | 2010-04-21 | High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882478A CN101882478A (en) | 2010-11-10 |
| CN101882478B true CN101882478B (en) | 2014-11-19 |
Family
ID=43054464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010151822.1A Active CN101882478B (en) | 2010-04-21 | 2010-04-21 | High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101882478B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723504B (en) * | 2017-10-09 | 2019-08-09 | 中国西电集团有限公司 | A kind of contact line of bronze in use for electrified railroad in and its method for continuous production |
| CN110241327B (en) * | 2019-06-25 | 2020-10-20 | 宁波金田铜业(集团)股份有限公司 | Ti-tin-containing bronze rod and preparation processing and heat treatment process method thereof |
| CN112281018A (en) * | 2020-10-12 | 2021-01-29 | 中铁建电气化局集团康远新材料有限公司 | High-strength high-conductivity copper-tin alloy contact wire and preparation process thereof |
| CN113421690A (en) * | 2021-06-07 | 2021-09-21 | 中铁北赛电工有限公司 | Copper-tin alloy contact wire and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216383C (en) * | 2002-08-21 | 2005-08-24 | 张强 | Metal contact wire bar blank, metal contact wire and method for producing said bar blank |
| CN101397611A (en) * | 2008-10-31 | 2009-04-01 | 云南铜业股份有限公司 | Method for producing copper alloy contact wire billets by adding alloy element to copper solution |
| CN101441911A (en) * | 2008-12-31 | 2009-05-27 | 中铁建电气化局集团有限公司 | Method for preparing contact wire and lever blank |
| CN101684529A (en) * | 2008-09-22 | 2010-03-31 | 云南铜业股份有限公司 | Copper alloy for contact line and application thereof |
-
2010
- 2010-04-21 CN CN201010151822.1A patent/CN101882478B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216383C (en) * | 2002-08-21 | 2005-08-24 | 张强 | Metal contact wire bar blank, metal contact wire and method for producing said bar blank |
| CN101684529A (en) * | 2008-09-22 | 2010-03-31 | 云南铜业股份有限公司 | Copper alloy for contact line and application thereof |
| CN101397611A (en) * | 2008-10-31 | 2009-04-01 | 云南铜业股份有限公司 | Method for producing copper alloy contact wire billets by adding alloy element to copper solution |
| CN101441911A (en) * | 2008-12-31 | 2009-05-27 | 中铁建电气化局集团有限公司 | Method for preparing contact wire and lever blank |
Non-Patent Citations (1)
| Title |
|---|
| 支海军，徐玉松等.《高速电气化铁道用CuSn合金接触线成形工艺研究》.《铸造技术》.2009,第30卷(第12期),第1591页第2栏第2段第1-7行. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101882478A (en) | 2010-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103820685B (en) | Strength aluminium alloy line and preparation method thereof in conductance 60%IACS | |
| CN101787492B (en) | Manufacturing method of high quality and large size mandril blank | |
| CN102330030B (en) | Seamless steel pipe with diameter of between 559 and 711mm for vehicular high-pressure gas cylinder and production method thereof | |
| CN103014534B (en) | Cast hot work die steel and processing method thereof | |
| CN101763910B (en) | Low tin-copper alloy contact wire for electric railway and manufacturing method thereof | |
| CN102828063A (en) | Novel lead-free environment-friendly high-strength wear-resistant copper-base alloy bar and preparation method thereof | |
| CN104018041A (en) | High-speed rail train aluminum profile and preparation method thereof | |
| CN101882478B (en) | High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof | |
| CN101804564B (en) | High-efficiency short-flow production line of composite material of high-alloy steel and high-alloy steel | |
| CN103820686A (en) | Medium strength aluminium alloy wire with conductivity of 55% IACS, and preparation method thereof | |
| CN104498747A (en) | Preparation method of Al-Zr-RE alloy round aluminum rod | |
| CN102319735A (en) | A kind of casting-rolling method of aluminium alloy plate | |
| CN101480663B (en) | Manufacturing technology of high-alloy centrifugal compound cast steel supporting roll | |
| CN103056624B (en) | Method for producing high-quality forged material by using large-scale vertical type continuous casting round billet, product and application thereof | |
| CN102168212A (en) | Aluminium alloy lamp cap material and production method of the aluminium alloy lamp cap material | |
| CN110669966A (en) | High-conductivity and high-strength aluminum alloy conductive profile and production process thereof | |
| CN103909242B (en) | The method of producing copper rod considered to be worth doing by a kind of copper scrap that utilizes | |
| CN104561697A (en) | Method for producing pop-top can material by directly adopting electrolytic aluminum liquid down-injection type casting-rolling method | |
| CN105499302A (en) | Production method of pure copper stranded wire | |
| CN101717877A (en) | Alloy material of copper, nickel, silicon and bronze and preparation method thereof | |
| CN100563859C (en) | A kind of method of utilizing the belt method to carry out continuously casting and rolling to produce deformed magnesium alloy tape volume | |
| CN110551928A (en) | Production method of 5654 aluminum alloy welding wire blank | |
| CN102310078B (en) | Continuous-casting continuous-rolling method for producing sectional materials and bar-wire materials by using residual heat of molten steel | |
| CN103993236A (en) | Economic type core rod alloy steel and preparation and heat treatment method thereof | |
| CN103993210B (en) | A kind of aluminium lithium alloy material and the preparation method of improvement vacuum melting technique thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENYANG BEIHENG NEW MATERIAL CO., LTD. Free format text: FORMER NAME: SHENYANG BEIHENG HITACHI COPPER CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 110122 No. 106, Dadong District, Liaoning, Shenyang, Jianshe Road Patentee after: Shenyang North Heng new material Co., Ltd. Address before: 110044, No. 57 East Station Street, Dadong District, Liaoning, Shenyang Patentee before: Shenyang Beiheng Hitachi Copper Industry Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof Effective date of registration: 20150324 Granted publication date: 20141119 Pledgee: Bank of Yingkou, Limited by Share Ltd, Shenyang branch Pledgor: Shenyang North Heng new material Co., Ltd. Registration number: 2015990000223 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150413 Granted publication date: 20141119 Pledgee: Bank of Yingkou, Limited by Share Ltd, Shenyang branch Pledgor: Shenyang North Heng new material Co., Ltd. Registration number: 2015990000223 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof Effective date of registration: 20150415 Granted publication date: 20141119 Pledgee: Bank of Yingkou, Limited by Share Ltd, Shenyang branch Pledgor: Shenyang North Heng new material Co., Ltd. Registration number: 2015990000287 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160328 Granted publication date: 20141119 Pledgee: Bank of Yingkou, Limited by Share Ltd, Shenyang branch Pledgor: Shenyang North Heng new material Co., Ltd. Registration number: 2015990000287 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High-strength copper tin alloy contact line for high-speed electric railway and manufacturing method thereof Effective date of registration: 20160328 Granted publication date: 20141119 Pledgee: Bank of Yingkou, Limited by Share Ltd, Shenyang branch Pledgor: Shenyang North Heng new material Co., Ltd. Registration number: 2016990000242 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |