CN106119597A - The different in nature copper wires of a kind of environment-friendly and high-performance and processing technique thereof - Google Patents
The different in nature copper wires of a kind of environment-friendly and high-performance and processing technique thereof Download PDFInfo
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- CN106119597A CN106119597A CN201610753899.3A CN201610753899A CN106119597A CN 106119597 A CN106119597 A CN 106119597A CN 201610753899 A CN201610753899 A CN 201610753899A CN 106119597 A CN106119597 A CN 106119597A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
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- 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
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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
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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
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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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
- C22C9/05—Alloys based on copper with manganese as the next major constituent
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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
- C22C9/10—Alloys based on copper with silicon as the next major constituent
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Abstract
The invention discloses different in nature copper wires and the processing technique thereof of a kind of environment-friendly and high-performance, be prepared from including by the raw material of following weight portion: fine copper 50～80 parts, zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～4 parts, chromium 2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity；The present invention utilizes the copper alloy wire finished product environmental protection that composition fine copper, zinc, ferrum, silicon, manganese, phosphorus, stannum, beryllium, chromium, zirconium, lanthanum, cerium, antimony obtain, and performance is good, can make full use of each performance copper alloy field；Processing process is simple, it is simple to operation controls, and uses the pressworking equipment of some routines, and equipment investment is few, and production procedure is short, low cost of manufacture, and product surface is bright and clean, and precision is high.
Description
Technical field
The present invention relates to copper alloy wire field, be specifically related to different in nature copper wires and the processing work thereof of a kind of environment-friendly and high-performance
Skill.
Background technology
Along with developing rapidly of electronics industry, the different in nature copper wires of domestic and international environment-friendly and high-performance and the demand of copper alloy wire
Amount increases sharply.The production method of China's special-shaped copper and copper alloy wire material at present mainly have high speed hammering-High Precision Cold method,
The techniques such as milling method, groove rolling method.Different in nature copper wires and the copper alloy wire of existing technique production environment-friendly and high-performance also exist
The shortcomings such as equipment investment is big, made-up belt required precision height, complex production process, production cycle length, production cost are high.
Copper material purposes in electric power, communications industry is the most widely, and common alloy abnormal shape copper alloy wire is low
End market is the most saturated, but the special-shaped alloy abnormal shape copper alloy wire needed for power industry high-end market relies primarily on import, because of
Its all technical requires strict, and owing to abnormity casting alloy abnormal shape copper alloy wire belongs to non complete symmetry type abnormal shape copper
Material, production difficulty is big, mostly relies on from external import, but its good performance right and wrong in the case of current Chinese energy anxiety
The most significant.China's abnormity casting alloy abnormal shape copper alloy wire at present belongs to non complete symmetry type copper material in special shape, Ge Xiangji
Art index request is strict, and production difficulty is big.In addition to the conductivity of material is had the requirement of superelevation, the particularity of shape and tolerance
Also there is strict demand.But to want the index reaching each side the most highly difficult from the point of view of existing technology.
Summary of the invention
For solving the problems referred to above, the invention provides different in nature copper wires and the processing technique thereof of a kind of environment-friendly and high-performance.
For achieving the above object, the technical scheme that the present invention takes is:
The different in nature copper wires of a kind of environment-friendly and high-performance and processing technique thereof, be prepared from including by the raw material of following weight portion:
Fine copper 50～80 parts, zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～
4 parts, chromium 2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity.
Further, the different in nature copper wires of a kind of environment-friendly and high-performance, it is prepared from including by the raw material of following weight portion:
Fine copper 50 parts, 1 part of zinc, ferrum 2 parts, silicon 3 parts, 5 parts of manganese, 6 parts of phosphorus, 7 parts of stannum, beryllium 4 parts, chromium 7 parts, zirconium 4 parts, lanthanum 6 parts, cerium 8
Part, 6 parts of antimony, remaining be inevitable impurity.
Further, the different in nature copper wires of a kind of environment-friendly and high-performance, it is prepared from including by the raw material of following weight portion:
Fine copper 60 parts, 7 parts of zinc, ferrum 8 parts, silicon 3 parts, 4 parts of manganese, 4 parts of phosphorus, 4 parts of stannum, beryllium 4 parts, chromium 4 parts, zirconium 4 parts, lanthanum 4 parts, cerium 4
Part, 4 parts of antimony, remaining be inevitable impurity.
Further, the different in nature copper wires of a kind of environment-friendly and high-performance, it is prepared from including by the raw material of following weight portion:
Fine copper 50 parts, 1 part of zinc, ferrum 2 parts, silicon 3 parts, 1 part of manganese, 2 parts of phosphorus, 3 parts of stannum, beryllium 1 part, chromium 2 parts, zirconium 1 part, lanthanum 3 parts, cerium 4
Part, 2 parts of antimony, remaining be inevitable impurity.
Further, the different in nature copper wires of a kind of environment-friendly and high-performance and processing technique thereof, comprise the steps；
S1: weigh zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～4 parts, chromium
2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity, mixing put into smelting furnace
In at temperature 800-1000 DEG C, carry out melting, obtain alloying metal liquid；
S2: fine copper 50～80 parts are put in smelting furnace and carry out melting at temperature 900-1100 DEG C, obtain copper meltwater, so
After carry out on-the-spot sample analysis；
S3: the copper meltwater alloying metal liquid obtained in step S1 and step S2 obtained, falls after carrying out mixing and stirring
Carry out continuous casting in entering continuous casting and continuous rolling mill and obtain copper alloy wire base；
S4, step S3 is obtained copper alloy wire base place continuous extruder carry out extrusion operation, carry out wire drawing behaviour by wire drawing machine
Make, after online annealing, prepare environment-friendly and high-performance copper alloy wire；
S5, the environment-friendly and high-performance copper alloy wire of step S4 gained is carried out acid wash passivation operation, obtain environment-friendly and high-performance copper and close
Gold thread material finished product；
S7, by the environment-friendly and high-performance copper alloy wire finished product after acid wash passivation by inspection, packaging warehouse-in.
Further, in described step S3, continuous casting and rolling temperature is 1000～1200 DEG C.
Further, in described step S4, continuously extruded temperature is 500～800 DEG C, and extrusion time is 10～50s.
Further, in described step S4, continuous wire drawing temperature is 400～450 DEG C, and the wire drawing time is 15～45s.
Further, in described step S6 pickling, the concentration of pickle is between 1～7 degree.
The present invention utilizes the copper alloy wire that composition fine copper, zinc, ferrum, silicon, manganese, phosphorus, stannum, beryllium, chromium, zirconium, lanthanum, cerium, antimony obtain
Material finished product environmental protection, performance is good, can make full use of each performance copper alloy field；Processing process is simple, it is simple to operation
Controlling, use the pressworking equipment of some routines, equipment investment is few, and production procedure is short, low cost of manufacture, product surface light
Clean, precision is high.
Detailed description of the invention
In order to make objects and advantages of the present invention clearer, below in conjunction with embodiment, the present invention is carried out the most in detail
Explanation.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention includes being prepared from by the raw material of following weight portion:
Fine copper 50～80 parts, zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～
4 parts, chromium 2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity.
The different in nature copper wires of a kind of environment-friendly and high-performance and processing technique thereof, comprise the steps；
S1: weigh zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～4 parts, chromium
2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity, mixing put into smelting furnace
In at temperature 800-1000 DEG C, carry out melting, obtain alloying metal liquid；
S2: fine copper 50～80 parts are put in smelting furnace and carry out melting at temperature 900-1100 DEG C, obtain copper meltwater, so
After carry out on-the-spot sample analysis；
S3: the copper meltwater alloying metal liquid obtained in step S1 and step S2 obtained, falls after carrying out mixing and stirring
Carry out continuous casting in entering continuous casting and continuous rolling mill and obtain copper alloy wire base；
S4, step S3 is obtained copper alloy wire base place continuous extruder carry out extrusion operation, carry out wire drawing behaviour by wire drawing machine
Make, after online annealing, prepare environment-friendly and high-performance copper alloy wire；
S5, the environment-friendly and high-performance copper alloy wire of step S4 gained is carried out acid wash passivation operation, obtain environment-friendly and high-performance copper and close
Gold thread material finished product；
S7, by the environment-friendly and high-performance copper alloy wire finished product after acid wash passivation by inspection, packaging warehouse-in.
In described step S3, continuous casting and rolling temperature is 1000～1200 DEG C.
In described step S4, continuously extruded temperature is 500～800 DEG C, and extrusion time is 10～50s.
In described step S4, continuous wire drawing temperature is 400～450 DEG C, and the wire drawing time is 15～45s.
In described step S6 pickling, the concentration of pickle is between 1～7 degree.
Embodiment 1:
S1: weigh 1 part of zinc, ferrum 2 parts, silicon 3 parts, 1 part of manganese, 2 parts of phosphorus, 3 parts of stannum, beryllium 1 part, chromium 2 parts, zirconium 1 part, lanthanum 3 parts, cerium 4
Part, 2 parts of antimony, remaining be inevitable impurity, mixing puts in smelting furnace and carries out melting at temperature 1000 DEG C, obtains alloy
Molten metal；
S2: fine copper 50 parts is put in smelting furnace and carries out melting at temperature 1100 DEG C, obtain copper meltwater, then carry out stove
Front analysis；
S3: the copper meltwater alloying metal liquid obtained in step S1 and step S2 obtained, falls after carrying out mixing and stirring
Carry out continuous casting in entering continuous casting and continuous rolling mill and obtain copper alloy wire base；
S4, step S3 is obtained copper alloy wire base place continuous extruder carry out extrusion operation, carry out wire drawing behaviour by wire drawing machine
Make, after online annealing, prepare environment-friendly and high-performance copper alloy wire；
S5, the environment-friendly and high-performance copper alloy wire of step S4 gained is carried out acid wash passivation operation, obtain environment-friendly and high-performance copper and close
Gold thread material finished product；
S7, by the environment-friendly and high-performance copper alloy wire finished product after acid wash passivation by inspection, packaging warehouse-in.
In described step S3, continuous casting and rolling temperature is 1200 DEG C.
In described step S4, continuously extruded temperature is 800 DEG C, and extrusion time is 50s.
In described step S4, continuous wire drawing temperature is 450 DEG C, and the wire drawing time is 45s.
In described step S6 pickling, the concentration of pickle is between 7 degree.
Embodiment 2:
S1: weigh 7 parts of zinc, ferrum 8 parts, silicon 3 parts, 4 parts of manganese, 4 parts of phosphorus, 4 parts of stannum, beryllium 4 parts, chromium 4 parts, zirconium 4 parts, lanthanum 4 parts, cerium 4 parts,
4 parts of antimony, remaining be inevitable impurity, mixing puts in smelting furnace and carries out melting at temperature 900 DEG C, obtains alloying metal
Liquid；
S2: fine copper 60 parts is put in smelting furnace and carries out melting at temperature 1000 DEG C, obtain copper meltwater, then carry out stove
Front analysis；
S3: the copper meltwater alloying metal liquid obtained in step S1 and step S2 obtained, falls after carrying out mixing and stirring
Carry out continuous casting in entering continuous casting and continuous rolling mill and obtain copper alloy wire base；
S4, step S3 is obtained copper alloy wire base place continuous extruder carry out extrusion operation, carry out wire drawing behaviour by wire drawing machine
Make, after online annealing, prepare environment-friendly and high-performance copper alloy wire；
S5, the environment-friendly and high-performance copper alloy wire of step S4 gained is carried out acid wash passivation operation, obtain environment-friendly and high-performance copper and close
Gold thread material finished product；
S7, by the environment-friendly and high-performance copper alloy wire finished product after acid wash passivation by inspection, packaging warehouse-in.
In described step S3, continuous casting and rolling temperature is 1000 DEG C.
In described step S4, continuously extruded temperature is 700 DEG C, and extrusion time is 40s.
In described step S4, continuous wire drawing temperature is 440 DEG C, and the wire drawing time is 25s.
In described step S6 pickling, the concentration of pickle is between 4 degree.
Embodiment 3:
S1: weigh 1 part of zinc, ferrum 2 parts, silicon 3 parts, 5 parts of manganese, 6 parts of phosphorus, 7 parts of stannum, beryllium 4 parts, chromium 7 parts, zirconium 4 parts, lanthanum 6 parts, cerium 8
Part, 6 parts of antimony, remaining be inevitable impurity, mixing puts in smelting furnace and carries out melting at temperature 900 DEG C, obtains alloy gold
Belong to liquid；
S2: fine copper 50 parts is put in smelting furnace and carries out melting at temperature 1000 DEG C, obtain copper meltwater, then carry out stove
Front analysis；
S3: the copper meltwater alloying metal liquid obtained in step S1 and step S2 obtained, falls after carrying out mixing and stirring
Carry out continuous casting in entering continuous casting and continuous rolling mill and obtain copper alloy wire base；
S4, step S3 is obtained copper alloy wire base place continuous extruder carry out extrusion operation, carry out wire drawing behaviour by wire drawing machine
Make, after online annealing, prepare environment-friendly and high-performance copper alloy wire；
S5, the environment-friendly and high-performance copper alloy wire of step S4 gained is carried out acid wash passivation operation, obtain environment-friendly and high-performance copper and close
Gold thread material finished product；
S7, by the environment-friendly and high-performance copper alloy wire finished product after acid wash passivation by inspection, packaging warehouse-in.
In described step S3, continuous casting and rolling temperature is 1100 DEG C.
In described step S4, continuously extruded temperature is 600 DEG C, and extrusion time is 40s.
In described step S4, continuous wire drawing temperature is 450 DEG C, and the wire drawing time is 35s.
In described step S6 pickling, the concentration of pickle is between 3 degree.
The present invention utilizes the copper alloy wire that composition fine copper, zinc, ferrum, silicon, manganese, phosphorus, stannum, beryllium, chromium, zirconium, lanthanum, cerium, antimony obtain
Material finished product environmental protection, performance is good, can make full use of each performance copper alloy field；Processing process is simple, it is simple to operation
Controlling, use the pressworking equipment of some routines, equipment investment is few, and production procedure is short, low cost of manufacture, product surface light
Clean, precision is high.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. the different in nature copper wires of an environment-friendly and high-performance, it is characterised in that include being prepared from by the raw material of following weight portion:
Fine copper 50～80 parts, zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～
4 parts, chromium 2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 1, it is characterised in that include by following weight
The raw material of part is prepared from:
Fine copper 50 parts, 1 part of zinc, ferrum 2 parts, silicon 3 parts, 5 parts of manganese, 6 parts of phosphorus, 7 parts of stannum, beryllium 4 parts, chromium 7 parts, zirconium 4 parts, lanthanum 6 parts, cerium 8
Part, 6 parts of antimony, remaining be inevitable impurity.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 1, it is characterised in that include by following weight
The raw material of part is prepared from:
Fine copper 60 parts, 7 parts of zinc, ferrum 8 parts, silicon 3 parts, 4 parts of manganese, 4 parts of phosphorus, 4 parts of stannum, beryllium 4 parts, chromium 4 parts, zirconium 4 parts, lanthanum 4 parts, cerium 4
Part, 4 parts of antimony, remaining be inevitable impurity.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 1, it is characterised in that include by following weight
The raw material of part is prepared from:
Fine copper 50 parts, 1 part of zinc, ferrum 2 parts, silicon 3 parts, 1 part of manganese, 2 parts of phosphorus, 3 parts of stannum, beryllium 1 part, chromium 2 parts, zirconium 1 part, lanthanum 3 parts, cerium 4
Part, 2 parts of antimony, remaining be inevitable impurity.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 1 and processing technique thereof, it is characterised in that bag
Include following steps；
S1: weigh zinc 1～8 parts, ferrum 2～8 parts, silicon 3～6 parts, manganese 1～5 parts, phosphorus 2～6 parts, stannum 3～7 parts, beryllium 1～4 parts, chromium
2～7 parts, zirconium 1～4 parts, lanthanum 3～6 parts, cerium 4～8 parts, antimony 2～6 parts, remaining be inevitable impurity, mixing put into smelting furnace
In at temperature 800-1000 DEG C, carry out melting, obtain alloying metal liquid；
S2: fine copper 50～80 parts are put in smelting furnace and carry out melting at temperature 900-1100 DEG C, obtain copper meltwater, so
After carry out on-the-spot sample analysis；
S3: the copper meltwater alloying metal liquid obtained in step S1 and step S2 obtained, falls after carrying out mixing and stirring
Carry out continuous casting in entering continuous casting and continuous rolling mill and obtain copper alloy wire base；
S4, step S3 is obtained copper alloy wire base place continuous extruder carry out extrusion operation, carry out wire drawing behaviour by wire drawing machine
Make, after online annealing, prepare environment-friendly and high-performance copper alloy wire；
S5, the environment-friendly and high-performance copper alloy wire of step S4 gained is carried out acid wash passivation operation, obtain environment-friendly and high-performance copper and close
Gold thread material finished product；
S7, by the environment-friendly and high-performance copper alloy wire finished product after acid wash passivation by inspection, packaging warehouse-in.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 5 and processing technique thereof, it is characterised in that institute
Stating continuous casting and rolling temperature in step S3 is 1000～1200 DEG C.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 5 and processing technique thereof, it is characterised in that institute
Stating continuously extruded temperature in step S4 is 500～800 DEG C, and extrusion time is 10～50s.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 5 and processing technique thereof, it is characterised in that institute
Stating continuous wire drawing temperature in step S4 is 400～450 DEG C, and the wire drawing time is 15～45s.
The different in nature copper wires of a kind of environment-friendly and high-performance the most according to claim 5 and processing technique thereof, it is characterised in that institute
Stating in the pickling of step S6, the concentration of pickle is between 1～7 degree.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694603A (en) * | 2017-01-19 | 2017-05-24 | 河北星耀稀有金属材料有限公司 | Preparation method of beryllium bronze alloy wire |
| CN107385271A (en) * | 2017-08-17 | 2017-11-24 | 芜湖市海源铜业有限责任公司 | A kind of high-performance special copper wires and its preparation technology |
| CN113549786A (en) * | 2021-05-12 | 2021-10-26 | 芜湖楚江合金铜材有限公司 | High-precision Y-shaped bus and production process thereof |
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| CN103608910A (en) * | 2011-07-22 | 2014-02-26 | 三菱综合材料株式会社 | Copper strand for bonding wire and method for producing copper strand for bonding wire |
| CN105336388A (en) * | 2015-12-02 | 2016-02-17 | 芜湖楚江合金铜材有限公司 | Electrical connector assembly copper alloy wire rod and production process thereof |
| CN105331845A (en) * | 2015-12-02 | 2016-02-17 | 芜湖楚江合金铜材有限公司 | High-precision special-shaped copper alloy wire and processing technology thereof |
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| CN101001965A (en) * | 2004-08-17 | 2007-07-18 | 株式会社神户制钢所 | Copper alloy plate for electric and electronic parts having bending workability |
| CN103608910A (en) * | 2011-07-22 | 2014-02-26 | 三菱综合材料株式会社 | Copper strand for bonding wire and method for producing copper strand for bonding wire |
| CN105336388A (en) * | 2015-12-02 | 2016-02-17 | 芜湖楚江合金铜材有限公司 | Electrical connector assembly copper alloy wire rod and production process thereof |
| CN105331845A (en) * | 2015-12-02 | 2016-02-17 | 芜湖楚江合金铜材有限公司 | High-precision special-shaped copper alloy wire and processing technology thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694603A (en) * | 2017-01-19 | 2017-05-24 | 河北星耀稀有金属材料有限公司 | Preparation method of beryllium bronze alloy wire |
| CN107385271A (en) * | 2017-08-17 | 2017-11-24 | 芜湖市海源铜业有限责任公司 | A kind of high-performance special copper wires and its preparation technology |
| CN113549786A (en) * | 2021-05-12 | 2021-10-26 | 芜湖楚江合金铜材有限公司 | High-precision Y-shaped bus and production process thereof |
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Application publication date: 20161116 |
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