CN113046602A - Special electrician round aluminum rod for direct-current transmission conductor and preparation method - Google Patents
Special electrician round aluminum rod for direct-current transmission conductor and preparation method Download PDFInfo
- Publication number
- CN113046602A CN113046602A CN202110245553.3A CN202110245553A CN113046602A CN 113046602 A CN113046602 A CN 113046602A CN 202110245553 A CN202110245553 A CN 202110245553A CN 113046602 A CN113046602 A CN 113046602A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- direct
- current transmission
- special
- rod
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
The invention belongs to the technical field of electrical equipment, and discloses a special electrical round aluminum rod for a direct-current transmission lead and a preparation method thereof. The special electrical round aluminum rod for the 800KV-1000KV direct-current transmission conductor provided by the invention can meet the development and application of the conductor. The transmission conductor made of the product of the invention adopts the transmission technology of 1000KV and above of alternating voltage, 800KV and above of direct voltage and the voltage class, and is characterized in that the conductor made of the product of the electrical round aluminum rod has the functions of large transmission capacity, long transmission distance, reduced line loss, high strength, good conductivity and the like.
Description
Technical Field
The invention belongs to the technical field of electrical equipment, particularly relates to an electrical round aluminum rod special for a direct-current transmission lead and a preparation method thereof, and particularly relates to an electrical round aluminum rod special for a national grid 800KV-1000KV direct-current transmission lead.
Background
At present, with the energy resources and the power load demand being in reverse distribution, 2/3 water and electricity resources are concentrated in the southwest region, more than 80% of land wind and solar resources are concentrated in the west and north regions, and more than 70% of power consumption is concentrated in the middle east region.
Meanwhile, in order to reduce the power waste in the power transmission process, save land resources and use cost, and reduce potential safety hazards and the like, 800KV-1000KV becomes the most important power transmission channel.
The most similar prior art to the scheme is as follows:
the production process of the prior product, namely the round aluminum rod for electrical engineering is controlled, the components of the primary aluminum liquid are lower by 0.01-0.05 percent on the basis of the patent technology, the casting temperature is unbalanced, the control error is in a range of more than 12 in the manufacturing process, the temperature of the aluminum liquid is 755-doped 770 ℃ during degassing and deslagging, the standing time is 20-35 minutes, the stirring time of the aluminum liquid is 10-20 minutes, the temperature of the aluminum liquid is controlled 705-doped 715 during casting, a 30-45 mesh ceramic filter plate is adopted for filtering the aluminum liquid, the temperature of the casting cooling water is 25-40 ℃, the temperature of the cast ingot is 480-doped 520 between rolling and rolling into the round aluminum rod, the temperature of the emulsion is 40-60 ℃ during rolling into the round aluminum rod for electrical engineering, and the temperature produced by the round aluminum rod is 140-doped 170 ℃. The product numerical value is close to the patent technology of the scheme after various detections and uses.
The prior art has the defects that:
the maximum sectional area of the lead made of the product is only 430m square meters, the lead has poor power transmission performance, small transmission capacity, large line loss and large power consumption in long-term use, a plurality of towers are needed for line erection, and the strength of the aluminum lead is unstable in long-term use. The strength error of the direct current transmission wire after subsequent processing is within 30 ranges, the strength stability is poor, the conductivity of each section of the wire is not uniform, the line loss is increased due to unstable line current, the long-term use cost is high, and no obvious advantages exist.
The cause of the defect;
the production process and equipment are immature, the performance of the original auxiliary material is unstable, the processing precision is low, laboratory test equipment is not advanced enough, the detection flow is single, the tensile strength of the finished product of the electrical round aluminum rod is unstable, the resistance value is large, the strength of the aluminum wire after the wire is made is 159-190, the error range is larger than 31, the resistivity of individual aluminum wires is 0.02864 omega-m, and the influence on the conductivity of the whole wire is large.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) in the prior art, a direct current transmission lead made of an electrician round aluminum rod cannot reduce line loss, and is low in strength and poor in conductivity.
(2) In the prior art, the production of the common round aluminum rod for electrical engineering has low requirements on the components of the primary aluminum liquid, the content is unstable, and the tensile strength, the resistivity and the conductivity of the product are easily influenced in the subsequent use process.
(3) In the prior art, a lead is relatively common, the deviation of the national standard range is large, the rolling technological parameters of a product are backward, and some devices are not controlled accurately enough, so that the product is easy to have defects.
The difficulty in solving the above problems and defects is:
the production requirement is strictly controlled and is accurate, the operation flow is complex, the labor intensity of workers is high, the labor intensity of each working post is increased, and the personnel configuration is not easy to be consistent on the operation method.
The significance of solving the problems and the defects is as follows:
a800 KV-1000KV direct-current transmission conductor for a national grid is characterized in that the transmission capacity is increased, the line loss is reduced, the transmission power of a line can be improved, the number of line corridors is reduced, the power grid transmission efficiency and the comprehensive economic benefit of the whole life cycle of the conductor are improved, meanwhile, the transmission network transmission efficiency and the transmission capacity of the line are continuously improved, and the power grid construction requirements are comprehensively met.
The solution of the proposal
The wire made by the product comprehensively breaks through the proportion of new energy and is sent out on a large scale, the sectional area of the wire can reach 1250m square meters, the wire is an energy-saving and environment-friendly overhead line, a four-layer aluminum strand structure with high stability and large outer diameter is adopted, the strength of the aluminum wire is improved, the conductive performance and the conductive area increase the transmission capacity, the line loss is reduced, the interference to radio is reduced, the cross section of the aluminum wire of the product reaches 1250m square meters, the transmission power of the line can be improved, the number of line corridors is reduced, the power grid transmission efficiency and the comprehensive economic benefit of the whole service life cycle of the wire are improved, and the wire has obvious advantages in high voltage, high altitude, large capacity.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a special electrical round aluminum rod for a direct-current transmission lead and a preparation method thereof.
The invention is realized in such a way that the special electrical round aluminum rod for the direct-current transmission lead consists of 0.035 to 0.07 percent of silicon, 0.14 to 0.16 percent of iron, 0.008 to 0.012 percent of rare earth, 0.001 to 0.003 percent of aluminum boron alloy in aluminum liquid and the balance of aluminum according to mass percentage.
Another object of the present invention is to provide a method for manufacturing an electrical round aluminum rod for a dc power transmission conductor, the method comprising:
step one, adopting continuous casting and rolling equipment, and starting casting and filtering after molten aluminum is completely qualified;
step two, the filtered aluminum liquid enters a cooling casting machine, and is cast into ingot blanks through cooling;
and step three, extruding the steel wire into a wire rod in a continuous rolling mill, and controlling the rolling speed and the rolling temperature.
Further, the first step specifically includes:
firstly, adopting primary aluminum with the purity of 99.85 content in aluminum liquid, loading the primary aluminum in a special aluminum liquid heat preservation furnace with automatic constant temperature equipment, carrying out refining, degassing, deslagging and standing for 20 minutes for 1 time to obtain high-purity aluminum liquid, adding a refiner, improving the conductivity of an aluminum-boron alloy and refining a rare earth alloy of aluminum grains;
and secondly, adding the aluminum-boron alloy, the aluminum-rare earth alloy and the aluminum-iron alloy, stirring, refining, degassing and deslagging again.
In the first step, the aluminum boron alloy accounts for 0.001-0.003% of the aluminum liquid, and the balance is aluminum;
the rare earth alloy is 9 to 11 percent of rare earth elements, and the balance is aluminum;
the aluminum-iron alloy is iron with the mass fraction of 20%, and the balance is aluminum.
In the second step, high-purity argon is adopted to blow powdery refining agent into the molten aluminum, so that the refining agent completely and fully reacts with the molten aluminum, harmful impurity elements are removed, floating impurities in the molten aluminum are removed after complete and full reaction, the components are detected after standing for 20 minutes, the content of silicon is less than 0.06%, the content of iron is 0.14% -0.16%, the content of rare earth is 0.008% -0.012%, the content of aluminum-boron alloy is 0.001% -0.003%, and the production is started after the components are qualified.
Further, in the second step, the temperature of the cooling water is 35-45 degrees, the flow rate of the cooling water is 85t/h, and the ratio of the internal cooling water to the external cooling water is 6: 4, the pressure of cooling water is 0.35 mpa.
In the third step, the rolling temperature is 460-490 ℃, the temperature of the emulsified liquid is 80-90 t/h, the temperature of the emulsified liquid is 42-48 ℃, the final rolling speed is 5.8-7 m/s, and the temperature of the final wire is 160-180 ℃. The electrical round aluminum rod produced by the process parameters has good conductivity and stable tensile strength, is not easy to deform after being made into a direct-current transmission lead for long-term use, and prolongs the service life.
The invention also aims to provide the special electrical round aluminum rod for the 800KV-1000KV direct-current transmission conductor, and the special electrical round aluminum rod for the 800KV-1000KV direct-current transmission conductor is prepared by the preparation method.
By combining all the technical schemes, the invention has the advantages and positive effects that:
the special electrical round aluminum rod for the 800KV-1000KV direct-current transmission conductor provided by the invention can meet the development and application of the conductor. The transmission conductor made of the product of the invention adopts the transmission technology of alternating voltage 1000KV and above, direct voltage +/-800 KV and above and voltage grade, and is characterized in that the transmission conductor made of the product of the invention has the functions of large transmission capacity, reduced circuit corridor, less electric field intensity on the surface of the conductor, avoidance of corona discharge, reduced tower base number, long transmission distance, reduced circuit loss, high strength, good conductivity and the like.
Technical effect or experimental effect of comparison. The method comprises the following steps:
the prior art is as follows: the tensile strength of the aluminum monofilament of the direct current transmission conducting wire made of the common electrical round aluminum rod is between 159 and 190, the deviation of the tensile strength is large and exceeds the range of 31, the direct current resistivity of the aluminum monofilament is between 0.02815 and 0.02864, the resistivity is large, and the conducting performance is poor.
Through the technology, the tensile strength of the aluminum monofilament is relatively stable, the tensile strength is improved by 15 compared with the traditional production minimum within 175-190, the strength of the lead is improved by 15, the service life of the lead is prolonged, the error between the maximum value and the minimum value of the aluminum wire after the wire and cable is made is 16-20, the maximum resistivity of the aluminum wire is less than 0.028034, the resistivity is lower than that before, and the conductivity is 61.5.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a flowchart of a method for manufacturing an electrical round aluminum rod dedicated for a direct-current power transmission conductor according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The product is made into a power transmission lead, so that the wide-range popularization and use of Qinghai to Henan +/-800 kilovolts, white crane beach to Jiangsu, Qinghai to Henan, Ma shop to Nanyang, Hami to Zhengzhou, Shanhai temple to Shandong, spring to Hunan, Weifang to Yiyi to Zaozhuang to Heze to Shijiazhuan, Shaanbei to Wuhan can be promoted, when the transmission current exceeds 312 million, 1400 tons of power generation coal can be reduced every year in the east China, 2542 million tons of carbon dioxide and 22 million tons of nitrogen oxides can be reduced, the environmental quality of the east China can be improved, and powerful support is provided for protecting war in blue sky and assisting beautiful China construction. The product made by the conducting wire can give full play to the advantages of high capacity, long distance and low loss of an extra-high voltage power grid, improve the specific gravity of clean energy consumption, enhance the water and fire mutual assistance capability of the power grid and effectively relieve the long-term power supply and demand contradiction in east China.
Aiming at the problems in the prior art, the invention provides a special electrical round aluminum rod for a direct-current transmission conductor and a preparation method thereof, and the invention is described in detail below with reference to the accompanying drawings.
The special electrician round aluminum rod for the direct-current transmission conductor can completely produce 800KV-1000KV direct-current transmission conductors with 3 types: JLI/G3A-1250/70-76/7; JLI/G2A-1250/100-81/19; JLI/G2A-1000/80-84/19.
Specifically, the method comprises the following steps:
firstly, raw aluminum with the purity of 99.85 percent of aluminum liquid is adopted and is filled in a special aluminum liquid heat preservation furnace, the weight of the aluminum liquid in the furnace is 12 tons, the furnace is provided with automatic constant temperature equipment, 1 time of refining, degassing, deslagging and standing for 20 minutes to obtain high-purity aluminum liquid, elements such as silicon, iron and the like in the raw aluminum, which influence the performance and the conductivity of an aluminum rod, are analyzed by a direct current spectrum, a refiner, an aluminum boron alloy which improves the conductivity, a rare earth alloy which refines aluminum grains and an aluminum iron alloy which improves the aluminum strength are added according to the data of spectral analysis, wherein the adopted auxiliary materials are the aluminum boron alloy, the aluminum rare earth alloy, the aluminum iron alloy and the aluminum boron alloy, the mass fraction of boron element in the aluminum boron alloy is 3 percent to 3.5 percent, the rest is more than 99.5 percent of aluminum, the mass fraction of rare earth element in the rare earth alloy is 9 percent to 11 percent, the rest is more than 99.5 percent of aluminum, and the mass fraction of iron, the balance being 99.4% aluminum).
Secondly, adding aluminum-boron alloy, aluminum-rare earth alloy and aluminum-iron alloy, stirring to improve the uniformity of the components of the molten aluminum, and refining, degassing and deslagging again. High-purity argon is used as a main gas, a powdery refining agent is blown into aluminum liquid, so that the refining agent completely and fully reacts with the aluminum liquid to completely remove harmful impurity elements, after the complete and full reaction is finished, floating impurities in the aluminum liquid are manually removed, the components are detected after the aluminum liquid is kept still for 20 minutes, and the aluminum-boron alloy refining furnace is started to produce after the components are qualified, wherein the silicon content is less than 0.06%, the iron content is 0.14-0.16%, the rare earth content is 0.008-0.012%, and the aluminum-boron alloy content is 0.001-0.003%.
Thirdly, the aluminum liquid is processed by the steps of raw aluminum detection, degassing, deslagging, standing, stirring, sampling, analyzing, detecting, casting and cooling to form cast ingots, and rolling and forming to obtain the electrician round aluminum rod special for the 800KV-1000KV direct current transmission lead.
The method takes the liquid aluminum liquid specially supplied by the aluminum plant as the raw material, reduces the traditional remelting of secondary aluminum ingots, reduces the raw material loss and the air pollution, shortens the flow, is convenient to operate, reduces the labor force and the production cost, improves the working efficiency and saves the energy.
As shown in fig. 1, the invention provides an electrical round aluminum rod special for a direct current transmission conductor and a preparation method thereof, comprising the following steps:
s101, adopting continuous casting and continuous rolling equipment, starting casting after the molten aluminum is completely qualified, and filtering the molten aluminum in the casting machine to prevent the molten aluminum from being 0.1mm3The impurities enter the casting cavity, and the porosity of the filter plate is 4.5 tons of capacity flow per hour.
S102, feeding the filtered aluminum liquid into a cooling casting machine, and casting into ingot blanks through cooling, wherein the temperature of cooling water is 35-45 ℃, the flow of the cooling water is 85t/h, and the ratio of internal cooling water to external cooling water is 6: 4, the pressure of cooling water is 0.35 mpa.
S103, extruding the mixture into a wire rod in a continuous rolling mill, strictly controlling the rolling speed and temperature, keeping the rolling temperature high, keeping the tensile strength low, and adopting reasonable rolling speed and temperature to produce the wire rod with stable performance, wherein the rolling temperature is 460-490 ℃, the emulsion temperature is 80-90 t/h, the emulsion temperature is 42-48 ℃, the final rolling speed is 5.8-7 m/S, the final wire rod temperature is 160-180 ℃, and the low wire rod temperature is favorable for the stability of the strength.
The special electrical round aluminum rod for the 800kv-1000kv direct current transmission conductor produced by the method has stable quality, the qualification rate reaches more than 96 percent, reasonable aluminum liquid component control, high-precision filtration, strict temperature control, reasonable rolling process parameters, stable tensile strength, low resistivity, high conductivity and extremely stable tensile strength through wire drawing.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided on a carrier medium such as a disk, CD-or DVD-ROM, programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier, for example. The apparatus and its modules of the present invention may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of hardware circuits and software, e.g., firmware.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The special electrical round aluminum rod for the direct-current transmission lead is characterized by comprising, by mass, 0.035-0.07% of silicon, 0.14-0.16% of iron, 0.008-0.012% of rare earth, 0.001-0.003% of aluminum-boron alloy and the balance of aluminum.
2. A preparation method of an electrician round aluminum rod special for a direct-current transmission lead is characterized by comprising the following steps:
step one, adopting continuous casting and rolling equipment, and starting casting and filtering after molten aluminum is completely qualified;
step two, the filtered aluminum liquid enters a cooling casting machine, and is cast into ingot blanks through cooling;
and step three, extruding the steel wire into a wire rod in a continuous rolling mill, and controlling the rolling speed and the rolling temperature.
3. The method for preparing the special electrical round aluminum rod for the direct-current transmission conductor according to claim 2, wherein the first step specifically comprises the following steps:
firstly, adopting primary aluminum with the purity of 99.85 content in aluminum liquid, loading the primary aluminum in a special aluminum liquid heat preservation furnace with automatic constant temperature equipment, carrying out refining, degassing, deslagging and standing for 20 minutes for 1 time to obtain high-purity aluminum liquid, adding a refiner, improving the conductivity of an aluminum-boron alloy and refining a rare earth alloy of aluminum grains;
and secondly, adding the aluminum-boron alloy, the aluminum-rare earth alloy and the aluminum-iron alloy, stirring, refining, degassing and deslagging again.
4. The method for preparing an electrical round aluminum rod special for direct current transmission conductors as claimed in claim 3, wherein in the first step, the aluminum-boron alloy accounts for 0.001-0.003% by mass, and the balance is aluminum;
the rare earth alloy is 9 to 11 percent of rare earth elements, and the balance is aluminum;
the aluminum-iron alloy is iron with the mass fraction of 20%, and the balance is aluminum.
5. The method for preparing an electrical round aluminum rod special for a direct current transmission lead as claimed in claim 3, wherein in the second step, high purity argon is used to blow the powdery refining agent into the aluminum liquid, so that the refining agent completely and fully reacts with the aluminum liquid, harmful impurity elements are removed, floating impurities in the aluminum liquid are removed after the complete and sufficient reaction, components are detected after the aluminum liquid is kept still for 20 minutes, the components comprise 0.035 to 0.07 percent of silicon, 0.14 to 0.16 percent of iron, 0.008 to 0.012 percent of rare earth and 0.001 to 0.003 percent of aluminum boron alloy, and the aluminum round aluminum rod is started to produce after the components are qualified.
6. The method for preparing an electrical round aluminum rod special for direct current transmission conductors as claimed in claim 2, wherein in the second step, the temperature of the cooling water is 35-45 degrees, the flow rate of the cooling water is 85t/h, and the ratio of the internal cooling water to the external cooling water is 6: 4, the pressure of cooling water is 0.35 mpa.
7. The method for preparing the special electrical round aluminum rod for the direct-current transmission conductor as claimed in claim 2, wherein in the third step, the rolling temperature is 460-490 ℃, the emulsion temperature is 80-90 t/h, the emulsion temperature is 42-48 ℃, the final rolling speed is 5.8-7 m/s, and the final wire temperature is 160-180 ℃.
8. An electrician round aluminum rod special for 800KV-1000KV direct-current transmission conductors, which is characterized in that the electrician round aluminum rod special for 800KV-1000KV direct-current transmission conductors is prepared by the preparation method of any one of claims 2-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110245553.3A CN113046602A (en) | 2021-03-05 | 2021-03-05 | Special electrician round aluminum rod for direct-current transmission conductor and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110245553.3A CN113046602A (en) | 2021-03-05 | 2021-03-05 | Special electrician round aluminum rod for direct-current transmission conductor and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113046602A true CN113046602A (en) | 2021-06-29 |
Family
ID=76510184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110245553.3A Pending CN113046602A (en) | 2021-03-05 | 2021-03-05 | Special electrician round aluminum rod for direct-current transmission conductor and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113046602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347721A (en) * | 2023-10-07 | 2024-01-05 | 河北华伦线缆有限公司 | Quality control method for high-conductivity cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862509A (en) * | 2015-05-13 | 2015-08-26 | 江苏亨通电力特种导线有限公司 | Preparation technology of high-conductivity aluminium rod for overhead transmission line |
| CN105296810A (en) * | 2015-10-15 | 2016-02-03 | 远东电缆有限公司 | Continuous casting and continuous rolling production process of high-strength aluminum alloy rod |
| CN106435235A (en) * | 2016-10-18 | 2017-02-22 | 山东创辉新材料科技有限公司 | Preparation method for heat-resistant electrician round aluminum rod |
| CN108374110A (en) * | 2018-03-26 | 2018-08-07 | 山东元旺电工科技有限公司 | A kind of round aluminum rod and its production technology |
| CN109234580A (en) * | 2018-08-03 | 2019-01-18 | 特变电工山东鲁能泰山电缆有限公司 | A kind of high-strength conductive rate aluminium bar material and production method |
| CN110093534A (en) * | 2019-05-17 | 2019-08-06 | 江苏亨通电力特种导线有限公司 | High conductivity heat-resisting aluminium alloy, preparation method and aerial condutor alloy aluminum lever |
| CN111041282A (en) * | 2019-11-28 | 2020-04-21 | 国网辽宁省电力有限公司沈阳供电公司 | Soft aluminum monofilament for overhead conductor and preparation method thereof |
-
2021
- 2021-03-05 CN CN202110245553.3A patent/CN113046602A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862509A (en) * | 2015-05-13 | 2015-08-26 | 江苏亨通电力特种导线有限公司 | Preparation technology of high-conductivity aluminium rod for overhead transmission line |
| CN105296810A (en) * | 2015-10-15 | 2016-02-03 | 远东电缆有限公司 | Continuous casting and continuous rolling production process of high-strength aluminum alloy rod |
| CN106435235A (en) * | 2016-10-18 | 2017-02-22 | 山东创辉新材料科技有限公司 | Preparation method for heat-resistant electrician round aluminum rod |
| CN108374110A (en) * | 2018-03-26 | 2018-08-07 | 山东元旺电工科技有限公司 | A kind of round aluminum rod and its production technology |
| CN109234580A (en) * | 2018-08-03 | 2019-01-18 | 特变电工山东鲁能泰山电缆有限公司 | A kind of high-strength conductive rate aluminium bar material and production method |
| CN110093534A (en) * | 2019-05-17 | 2019-08-06 | 江苏亨通电力特种导线有限公司 | High conductivity heat-resisting aluminium alloy, preparation method and aerial condutor alloy aluminum lever |
| CN111041282A (en) * | 2019-11-28 | 2020-04-21 | 国网辽宁省电力有限公司沈阳供电公司 | Soft aluminum monofilament for overhead conductor and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347721A (en) * | 2023-10-07 | 2024-01-05 | 河北华伦线缆有限公司 | Quality control method for high-conductivity cable |
| CN117347721B (en) * | 2023-10-07 | 2024-04-30 | 河北华伦线缆有限公司 | Quality control method for high-conductivity cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105551688B (en) | Preparation method of high-accuracy anaerobic bright copper bar | |
| CN101525709B (en) | High-elongation aluminum alloy material and preparation method thereof | |
| CN104946936A (en) | High-conductivity rare earth duralumin monofilament material for overhead conductors | |
| CN102856009A (en) | Continuous semisolid extrusion forming method for preparing high-strength aluminum alloy lead | |
| CN103266241B (en) | A kind of Rare earth aluminum alloy conductor material and production method thereof | |
| CN108359863B (en) | GIS pipe shell production process | |
| CN113046602A (en) | Special electrician round aluminum rod for direct-current transmission conductor and preparation method | |
| CN103382572A (en) | Crucible for enabling polycrystalline silicon ingot to be free of black edge and preparation method thereof | |
| CN112646988A (en) | Preparation method of high-conductivity heat-resistant aluminum alloy rod | |
| CN108559895B (en) | Corrosion-resistant grounding alloy and preparation method thereof | |
| CN102061492B (en) | Electroplate liquid based on room temperature ion liquid indium chloride/fluoboric acid 1-methyl-3-butylimidazole system | |
| CN114806231B (en) | Prebaked anode anti-oxidation coating capable of reducing energy consumption of aluminum electrolysis cell and preparation and application methods thereof | |
| CN101643917B (en) | Self-sintered electrolytic anode steel claw guard ring and preparation method thereof | |
| CN104131317A (en) | Method for preparation of fine lead powder by electrodeposition | |
| CN103714881A (en) | Heat-resistant aluminum alloy expanded-diameter conductor and manufacturing method thereof | |
| CN110373584A (en) | Strength aluminium alloy monofilament and preparation method thereof in a kind of high conductivity | |
| CN106086542A (en) | A kind of computer capillary radiating tube rare earth aluminium alloy and preparation method thereof | |
| CN106001464A (en) | Control method for oxygen content during production process for copper rod | |
| CN203393255U (en) | Crucible for realizing no black edges of polycrystalline silicon cast ingot | |
| CN105200287A (en) | Manufacturing method of super-high-strength aluminium alloy circular ingots | |
| CN108486434A (en) | A kind of constant-temperature continuous casting method for tandem rolling of aluminium alloy conductor | |
| CN113637875A (en) | High-conductivity corrosion-resistant aluminum alloy monofilament for overhead conductor and preparation method thereof | |
| CN106947881A (en) | Multielement rare earth high conductivity Cu alloy material and preparation method thereof | |
| CN103386587A (en) | Method for grinding centrifugal hollow steel ingot for large-sized ring part | |
| CN104109788A (en) | Deformed magnesium alloy suitable for sectional material and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210629 |