CN106057268A - High-speed electrified railway contact network wire and preparation method thereof - Google Patents

High-speed electrified railway contact network wire and preparation method thereof Download PDF

Info

Publication number
CN106057268A
CN106057268A CN201510386530.9A CN201510386530A CN106057268A CN 106057268 A CN106057268 A CN 106057268A CN 201510386530 A CN201510386530 A CN 201510386530A CN 106057268 A CN106057268 A CN 106057268A
Authority
CN
China
Prior art keywords
alloy
wire
copper
impurity
total amount
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.)
Pending
Application number
CN201510386530.9A
Other languages
Chinese (zh)
Inventor
袁关兴
成羽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Xingguan New Materials Co Ltd
Original Assignee
Hangzhou Xingguan New Materials Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Xingguan New Materials Co Ltd filed Critical Hangzhou Xingguan New Materials Co Ltd
Priority to CN201510386530.9A priority Critical patent/CN106057268A/en
Publication of CN106057268A publication Critical patent/CN106057268A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a high-speed electrified railway contact network wire and a preparation method thereof. The high-speed electrified railway contact network wire is composed of a center layer and a wrapping layer which wraps the center layer, and is characterized in that the center layer is an aluminum alloy layer, the wrapping layer is an alloy material layer, and the percentages of chemical components of the wrapping layer are as follows: 2.0-5.0% of Sn, 0.2-0.7% of Cr, 0.1-0.75% of Te, 0.06-0.75% of B, 0.01-0.6% of Mg, 0.01-0.4% of Zr, 0.05-0.75% of Ni, and less than 0.15% of Fe, and the rest is Cu and impurities with the total quantity being not greater than 0.4%. According to the invention, the corrosion resistance and the abrasion resistance are significantly improved under the condition that good conductivity, tensile strength and fatigue resistance of the wire are ensured, the service life is prolonged, the safety is ensured, and the wire fits requirements of high-speed railways for various properties of a contact network wire material.

Description

A kind of contact Wire for High-Speed Electric Railway and preparation method thereof
Technical field
The present invention relates to metal material composition and the technical field of structures thereof of contact Wire for High-Speed Electric Railway, particularly relate to a kind of contact Wire for High-Speed Electric Railway and preparation method thereof.
Background technology
Current railway construction in China has been enter into developing period comprehensive, quick, high-quality, high-speed railway is main developing direction, along with improving constantly of train running speed, the performance of contact net conductor material being proposed the highest requirement, one of them is exactly the problem of materials of contact line conducting wire.China's contact line conducting wire material has Cold-rolled Pure Copper at present, aluminum steel recombination line, stannum copper, silver-bearing copper, the alloy wires such as SAC, requirements as the wire alloy material of electrification contact network has high conductivity, higher tensile strength, higher softening temperature, preferably resisting fatigue vibratility, good anti-wear performance and corrosion resistance, and existing contact line conducting wire is prominent there is problems of corrosion resistance and wearability difficulty is up to standard, cause contact line conducting wire short for service life, and in use there is potential safety hazard, particularly today of China railways high speed development, conventional contact line conducting wire has been not suitable with the requirement of Development of High Speed Railway.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, provide a kind of contact Wire for High-Speed Electric Railway and preparation method thereof, prominent while ensureing the good conductivity of wire, tensile strength, fatigue resistance improve its corrosion resistance and wearability, improve service life, guarantee safety, be suitable for the requirement to contact net conductor material properties of the high speed railway.
The present invention is achieved through the following technical solutions: a kind of contact Wire for High-Speed Electric Railway, is made up of the integument of central core and parcel central core, and described central core is aluminium alloy layer, and described integument is alloy material layer, the percentage ratio composition Sn of its chemical composition 2.0~5.0%, Cr0.2~0.7%, Te 0.1~0.75%, B 0.06~0.75%, Mg 0.01~0.6%, Zr 0.01~0.4%, Ni0.05~0.75%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
Further, the cross section of described central core is circular.
Further, described integument is alloy material layer, the percentage ratio composition Sn 2.5 of its chemical composition~5.0%, Cr0.2~0.6%, Te 0.1~0.7%, B 0.06~0.6%, Mg 0.01~0.5%, Zr 0.01~0.35%, Ni0.05~0.6%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
Further, described integument is alloy material layer, the percentage ratio composition Sn 2.8 of its chemical composition~4%, Cr0.3~0.5%, Te 0.2~0.6%, B 0.08~0.5%, Mg 0.05~0.35%, Zr 0.02~0.32%, Ni0.05~0.45%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
Further, described integument is alloy material layer, the percentage ratio composition Sn 2.8 of its chemical composition~3.8%, Cr0.32~0.45%, Te 0.26~0.48%, B 0.08~0.35%, Mg 0.07~0.30%, Zr 0.06~0.25%, Ni0.05~0.32%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
Further, described total amount is not more than in the impurity of 0.4%, Pb < 0.02%, Bi < 0.01%, Sb < 0.01%.
Present invention also offers the preparation method of a kind of above-mentioned contact Wire for High-Speed Electric Railway, comprise the following steps:
1) drying: weigh, by copper alloy component content proportioning, the moisture that each component raw material carries out drying to remove in raw material, drying temperature is 105 DEG C-120 DEG C, drying time 10 hours;
2) melting: smelting furnace is previously heated to 350 DEG C-400 DEG C and keeps 10min, then gradually heat up after copper alloy each component raw material being put into smelting furnace, programming rate controls at 6 DEG C/min, treat that alloy raw material starts to melt, sprinkle Testa oryzae at alloy surface to be as the criterion with covering alloy liquid surface as coverture, the Testa oryzae being sprinkled into, wherein rise to smelting temperature 1100 DEG C-1250 DEG C, insulation 30min, obtains copper alloy solution;
3) detection: use spectrogrph to carry out melted copper alloy water detecting composition detection, to determine that each component is in the range of ratio requirement;
4) refine: smelting furnace is continuously heating to 1450 DEG C-1550 DEG C, uses graphite rod to be stirred alloy solution, and refining time is 30min-45min, and refine is incubated after completing;
5) casting: mould is preheated to 350 DEG C-400 DEG C, copper alloy solution good for refine is poured in casting mould at a temperature of 1200 DEG C-1300 DEG C, naturally cool to room temperature and obtain foundry goods;
6) hot rolling: foundry goods is heated to 900 DEG C-1100 DEG C, is incubated 45min-60min, shrend, carries out a solution treatment, then alloy is heated to 800 DEG C-900 DEG C, and implementing dependent variable is the hot rolling of 40%-70%;
7) drawing: the alloy after hot rolling is heated to 900 DEG C-1100 DEG C, is incubated 45min-60min, shrend, carries out Secondary Solid Solution Treatment, and implementing dependent variable at room temperature is the drawing of 70%-85%;
8) timeliness: by the alloy after drawing after 300 DEG C-500 DEG C insulation 1h-5h, shrend, prepare copper alloy wire, finally alloy lead wire is carried out surface process, by standard pack.
Compared with prior art, the invention has the beneficial effects as follows: wire uses interior outer double-layer structure, take into account and improve material properties, to adapt to the needs of high speed railway metal contact net development, wherein in the copper alloy surrounding layer of wire, proportioning adds Cr, Te, B, Mg, the element materials such as Zr ensure its good conductivity, tensile strength, fatigue resistance and plasticity, outstanding feature is that in copper alloy proportioning adds Sn, Ni, improve corrosion resistance and the wearability of wire netting wire, the centrally disposed cross section of wire is circular aluminum alloy core layer simultaneously, improve the heat transfer conductive effect of wire, this railway contact line wire properties improves and adds that the synchronization of structure improves, normally can use in adverse circumstances, and service life is long.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of a kind of contact Wire for High-Speed Electric Railway of the present invention.
Wherein: 1, integument;2, central core.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the present invention relates to a kind of contact Wire for High-Speed Electric Railway, it is made up of the integument 1 of central core 2 and parcel central core 2, described central core 2 is aluminium alloy layer, described integument 1 is alloy material layer, the percentage ratio composition Sn 2.0 of its chemical composition~5.0%, Cr0.2~0.7%, Te 0.1~0.75%, B 0.06~0.75%, Mg 0.01~0.6%, Zr 0.01~0.4%, Ni0.05~0.75%, Fe < 0.15%, remaining is not more than the impurity of 0.4% for copper and total amount, and the cross section of wherein said central core 2 is circular.
As preferably, described integument 1 is alloy material layer, the percentage ratio composition Sn of its chemical composition 2.5~5.0%, Cr0.2~0.6%, Te 0.1~0.7%, B 0.06~0.6%, Mg 0.01~0.5%, Zr 0.01~0.35%, Ni0.05~0.6%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
As it is further preferred that described integument 1 is alloy material layer, the percentage ratio of its chemical composition forms Sn 2.8~4%, Cr0.3~0.5%, Te 0.2~0.6%, B 0.08~0.5%, Mg 0.05~0.35%, Zr 0.02~0.32%, Ni0.05~0.45%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
As it is further preferred that described integument 1 is alloy material layer, the percentage ratio of its chemical composition forms Sn 2.8~3.8%, Cr0.32~0.45%, Te 0.26~0.48%, B 0.08~0.35%, Mg 0.07~0.30%, Zr 0.06~0.25%, Ni0.05~0.32%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
Meanwhile, described total amount is not more than in the impurity of 0.4%, Pb < 0.02%, Bi < 0.01%, Sb < 0.01%.
The preparation method of a kind of above-mentioned contact Wire for High-Speed Electric Railway, comprises the following steps:
1) drying: weigh, by copper alloy component content proportioning, the moisture that each component raw material carries out drying to remove in raw material, drying temperature is 105 DEG C-120 DEG C, drying time 10 hours;
2) melting: smelting furnace is previously heated to 350 DEG C-400 DEG C and keeps 10min, then gradually heat up after copper alloy each component raw material being put into smelting furnace, programming rate controls at 6 DEG C/min, treat that alloy raw material starts to melt, sprinkle Testa oryzae at alloy surface to be as the criterion with covering alloy liquid surface as coverture, the Testa oryzae being sprinkled into, wherein rise to smelting temperature 1100 DEG C-1250 DEG C, insulation 30min, obtains copper alloy solution;
3) detection: use spectrogrph to carry out melted copper alloy water detecting composition detection, to determine that each component is in the range of ratio requirement;
4) refine: smelting furnace is continuously heating to 1450 DEG C-1550 DEG C, uses graphite rod to be stirred alloy solution, and refining time is 30min-45min, and refine is incubated after completing;
5) casting: mould is preheated to 350 DEG C-400 DEG C, copper alloy solution good for refine is poured in casting mould at a temperature of 1200 DEG C-1300 DEG C, naturally cool to room temperature and obtain foundry goods;
6) hot rolling: foundry goods is heated to 900 DEG C-1100 DEG C, is incubated 45min-60min, shrend, carries out a solution treatment, then alloy is heated to 800 DEG C-900 DEG C, and implementing dependent variable is the hot rolling of 40%-70%;
7) drawing: the alloy after hot rolling is heated to 900 DEG C-1100 DEG C, is incubated 45min-60min, shrend, carries out Secondary Solid Solution Treatment, and implementing dependent variable at room temperature is the drawing of 70%-85%;
8) timeliness: by the alloy after drawing after 300 DEG C-500 DEG C insulation 1h-5h, shrend, prepare copper alloy wire, finally alloy lead wire is carried out surface process, by standard pack.
In sum, the present invention adds the Cr of trace element in the alloy of the copper alloy surrounding layer of wire, Te, B, Mg, Zr, the conductivity that wire netting wire tool is good, tensile strength, fatigue resistance and plasticity, and proportioning adds Sn in copper alloy, Ni, wherein Sn can improve the decay resistance of material and improve anti-wear performance, and Ni can improve the mechanical performance of material and improve the corrosion resistance of material, in actual alloy, each element can carry out proportioning according to different percentage ratio, obtain the copper alloy wire of different performance, with meet actually used in different demands.
Embodiment 1
In conjunction with concrete proportioning: Sn2.8%, Cr0.32%, Te 0.26%, B 0.08%, Mg 0.07%, Zr 0.06%, Ni0.05%, the total amount 0.12% of impurity component Fe, Pb, Bi, Sb, surplus is the tensile strength sigma of the copper alloy wire that copper preparesb>=540(MPa), conductivity (IACS) 78%, plasticity δ5It is 11%, and its decay resistance and anti-wear performance are significantly increased, the aluminium alloy layer of the centrally disposed circle of wire simultaneously, improve the heat transfer conductive effect of wire, inside and outside double-deck wire body structure, takes into account and improves conductor material properties so that railway contact line wire properties improves and adds that the synchronization of structure improves, can normally use in adverse circumstances, and service life is long.
Example example 2
In conjunction with concrete proportioning: Sn 3.1%, Cr0.38%, Te 0.36%, B 0.18%, Mg 0.1%, Zr 0.12%, Ni0.23%, the total amount 0.13% of impurity component Fe, Pb, Bi, Sb, surplus is the tensile strength sigma of the copper alloy wire that copper preparesb>=560(MPa), conductivity (IACS) 83%, plasticity δ5It is 13%, and its decay resistance and anti-wear performance are significantly increased, the aluminium alloy layer of the centrally disposed circle of wire simultaneously, improve the heat transfer conductive effect of wire, inside and outside double-deck wire body structure, takes into account and improves conductor material properties so that railway contact line wire properties improves and adds that the synchronization of structure improves, can normally use in adverse circumstances, and service life is long.
Example example 3
In conjunction with concrete proportioning: Sn 3.8%, Cr0.45%, Te 0.48%, B 0.35%, Mg 0.30%, Zr 0.25%, Ni0.32%, the total amount 0.5% of impurity component Fe, Pb, Bi, Sb, surplus is the tensile strength sigma of the copper alloy wire that copper preparesb>=582(MPa), conductivity (IACS) 72%, plasticity δ5Being 15%, its decay resistance and anti-wear performance are good, normally can use in adverse circumstances, and service life is long.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.

Claims (7)

1. a contact Wire for High-Speed Electric Railway, it is made up of the integument (1) of central core (2) and parcel central core (2), it is characterized in that, described central core (2) is aluminium alloy layer, described integument (1) is alloy material layer, the percentage ratio composition Sn 2.0 of its chemical composition~5.0%, Cr0.2~0.7%, Te 0.1~0.75%, B 0.06~0.75%, Mg 0.01~0.6%, Zr 0.01~0.4%, Ni0.05~0.75%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
A kind of contact Wire for High-Speed Electric Railway the most according to claim 1, it is characterised in that the cross section of described central core (2) is circular.
A kind of contact Wire for High-Speed Electric Railway the most according to claim 1, it is characterized in that, described integument (1) is alloy material layer, the percentage ratio composition Sn 2.5 of its chemical composition~5.0%, Cr0.2~0.6%, Te 0.1~0.7%, B 0.06~0.6%, Mg 0.01~0.5%, Zr 0.01~0.35%, Ni0.05~0.6%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
A kind of corrosion-resistant wire of Highspeed Catenary the most according to claim 3, it is characterized in that, described integument (1) is alloy material layer, the percentage ratio composition Sn 2.8 of its chemical composition~4%, Cr0.3~0.5%, Te 0.2~0.6%, B 0.08~0.5%, Mg 0.05~0.35%, Zr 0.02~0.32%, Ni0.05~0.45%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
A kind of contact Wire for High-Speed Electric Railway the most according to claim 4, it is characterized in that, described integument (1) is alloy material layer, the percentage ratio composition Sn 2.8 of its chemical composition~3.8%, Cr0.32~0.45%, Te 0.26~0.48%, B 0.08~0.35%, Mg 0.07~0.30%, Zr 0.06~0.25%, Ni0.05~0.32%, Fe < 0.15%, remaining is the impurity that copper and total amount are not more than 0.4%.
6. according to a kind of contact Wire for High-Speed Electric Railway described in claim 1,3,4,5, it is characterized in that, described total amount is not more than in the impurity of 0.4%, Pb < 0.02%, Bi < 0.01%, Sb < 0.01%.
7. the preparation method of a kind of contact Wire for High-Speed Electric Railway described in a claim 1, it is characterised in that comprise the following steps:
(1) drying: weigh, by copper alloy component content proportioning, the moisture that each component raw material carries out drying to remove in raw material, drying temperature is 105 DEG C-120 DEG C, drying time 10 hours;
(2) melting: smelting furnace is previously heated to 350 DEG C-400 DEG C and keeps 10min, then gradually heat up after copper alloy each component raw material being put into smelting furnace, programming rate controls at 6 DEG C/min, treat that alloy raw material starts to melt, sprinkle Testa oryzae at alloy surface to be as the criterion with covering alloy liquid surface as coverture, the Testa oryzae being sprinkled into, wherein rise to smelting temperature 1100 DEG C-1250 DEG C, insulation 30min, obtains copper alloy solution;
(3) detection: use spectrogrph to carry out melted copper alloy water detecting composition detection, to determine that each component is in the range of ratio requirement;
(4) refine: smelting furnace is continuously heating to 1450 DEG C-1550 DEG C, uses graphite rod to be stirred alloy solution, and refining time is 30min-45min, and refine is incubated after completing;
(5) casting: mould is preheated to 350 DEG C-400 DEG C, copper alloy solution good for refine is poured in casting mould at a temperature of 1200 DEG C-1300 DEG C, naturally cools to room temperature and obtain foundry goods;
(6) hot rolling: foundry goods is heated to 900 DEG C-1100 DEG C, is incubated 45min-60min, shrend, carries out a solution treatment, then alloy is heated to 800 DEG C-900 DEG C, and implementing dependent variable is the hot rolling of 40%-70%;
(7) drawing: the alloy after hot rolling is heated to 900 DEG C-1100 DEG C, is incubated 45min-60min, shrend, carries out Secondary Solid Solution Treatment, and implementing dependent variable at room temperature is the drawing of 70%-85%;
(8) timeliness: by the alloy after drawing after 300 DEG C-500 DEG C insulation 1h-5h, shrend, prepare copper alloy wire, finally alloy lead wire is carried out surface process, by standard pack.
CN201510386530.9A 2015-07-06 2015-07-06 High-speed electrified railway contact network wire and preparation method thereof Pending CN106057268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510386530.9A CN106057268A (en) 2015-07-06 2015-07-06 High-speed electrified railway contact network wire and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510386530.9A CN106057268A (en) 2015-07-06 2015-07-06 High-speed electrified railway contact network wire and preparation method thereof

Publications (1)

Publication Number Publication Date
CN106057268A true CN106057268A (en) 2016-10-26

Family

ID=57179412

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510386530.9A Pending CN106057268A (en) 2015-07-06 2015-07-06 High-speed electrified railway contact network wire and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106057268A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108265163A (en) * 2018-01-26 2018-07-10 贵州钢绳股份有限公司 A kind of patenting coverture and its application in Steel Wire Heat Treatment
CN108929968A (en) * 2018-07-18 2018-12-04 合肥择浚电气设备有限公司 A kind of production technology of high conductivity copper alloy wire

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331437A (en) * 1989-06-27 1991-02-12 Furukawa Electric Co Ltd:The Copper alloy for sliding and electrification excellent in heat resistance and wear resistance and its production
CN101113498A (en) * 2007-07-13 2008-01-30 宁波博威集团有限公司 High-strength highly-conductive low-calcium boron chromic zirconium copper alloy and method for manufacturing same
CN101629254A (en) * 2009-06-25 2010-01-20 中南大学 Multi-element composite micro-alloying copper alloy with high strength and high conductivity and preparation method thereof
CN103695698A (en) * 2013-12-26 2014-04-02 青岛友铭辰生物技术有限公司 Copper alloy contact line for electrified railways and preparation method of copper alloy contact line
CN104004939A (en) * 2014-06-13 2014-08-27 甘肃大鑫铜业有限责任公司 High-strength and high-conductivity copper alloy and preparation method thereof
CN104164589A (en) * 2014-08-06 2014-11-26 中国兵器科学研究院宁波分院 High-strength wear-resistant copper alloy and preparation method thereof
CN104409132A (en) * 2014-11-28 2015-03-11 李聪 Environment-friendly cable and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331437A (en) * 1989-06-27 1991-02-12 Furukawa Electric Co Ltd:The Copper alloy for sliding and electrification excellent in heat resistance and wear resistance and its production
CN101113498A (en) * 2007-07-13 2008-01-30 宁波博威集团有限公司 High-strength highly-conductive low-calcium boron chromic zirconium copper alloy and method for manufacturing same
CN101629254A (en) * 2009-06-25 2010-01-20 中南大学 Multi-element composite micro-alloying copper alloy with high strength and high conductivity and preparation method thereof
CN103695698A (en) * 2013-12-26 2014-04-02 青岛友铭辰生物技术有限公司 Copper alloy contact line for electrified railways and preparation method of copper alloy contact line
CN104004939A (en) * 2014-06-13 2014-08-27 甘肃大鑫铜业有限责任公司 High-strength and high-conductivity copper alloy and preparation method thereof
CN104164589A (en) * 2014-08-06 2014-11-26 中国兵器科学研究院宁波分院 High-strength wear-resistant copper alloy and preparation method thereof
CN104409132A (en) * 2014-11-28 2015-03-11 李聪 Environment-friendly cable and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108265163A (en) * 2018-01-26 2018-07-10 贵州钢绳股份有限公司 A kind of patenting coverture and its application in Steel Wire Heat Treatment
CN108929968A (en) * 2018-07-18 2018-12-04 合肥择浚电气设备有限公司 A kind of production technology of high conductivity copper alloy wire

Similar Documents

Publication Publication Date Title
CN101525709B (en) High-elongation aluminum alloy material and preparation method thereof
CN104051053B (en) high-strength and high-conductivity copper tin alloy contact line and its preparation method
CN103146960B (en) A kind of real core aluminium alloy conductor and preparation method thereof
US10584400B2 (en) Copper alloy wire
CN105063433A (en) High-conductivity heat-resisting aluminum alloy monofilament and preparation method thereof
CN104658631A (en) CuCrZr alloy stranded wire and production process thereof
CN101259484A (en) Scrap copper continuous casting and rolling low oxygen glitter copper lever production technology
CN104946936A (en) High-conductivity rare earth duralumin monofilament material for overhead conductors
CN104263992B (en) Motor commutator Kufil material and preparation method thereof
CN103854807B (en) A kind of high-conductivity hard aluminum wire and preparation technology thereof
CN103556016B (en) A kind of middle intensity high conductivity electrician aluminum conductor material and preparation method thereof
CN102851526B (en) High-conductivity copper-magnesium alloy contact wire and processing technology thereof
CN106057268A (en) High-speed electrified railway contact network wire and preparation method thereof
CN103088228A (en) Production method of high-strength high-conductivity copper alloy stranded wire
CN104409132A (en) Environment-friendly cable and manufacturing method thereof
CN107236882A (en) A kind of manufacture method of ultrahigh-strength aluminum alloy core aerial condutor and aluminium alloy core
CN101261890B (en) Manufacturing technology for high-intensity clearance ultra heat resisting aluminum alloy lead and ultra heat resisting aluminum alloy
CN105499302A (en) Production method of pure copper stranded wire
CN107358994A (en) Extra High Strength steel core high strength heat resistant alloy wire used for intelligent electric network and preparation method thereof
CN104361921B (en) One Albatra metal single-core cable and preparation method thereof
CN109371280A (en) A kind of high-strength high-conductivity copper-magnesium alloy strand casting bar and its casting technique
CN104124006B (en) A kind of preparation method of single strand cable
CN104911408A (en) Hard aluminum conductor filament and preparation method thereof
CN111793770A (en) Prestressed steel core for overhead conductor and preparation method thereof
CN100361235C (en) Ternary copper-alloy stranded conductor and contact line preparing method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 311504 the Fuchun River Town, Tonglu County, Hangzhou, Zhejiang Province

Applicant after: Hangzhou Xing Guan Transmission Technology Co., Ltd.

Address before: 311504 the Fuchun River Town, Tonglu County, Hangzhou, Zhejiang Province

Applicant before: Hangzhou Xingguan new materials Co. Ltd.

CB02 Change of applicant information
RJ01 Rejection of invention patent application after publication

Application publication date: 20161026

RJ01 Rejection of invention patent application after publication