CN106676300A - Production process for round aluminium alloy rod - Google Patents
Production process for round aluminium alloy rod Download PDFInfo
- Publication number
- CN106676300A CN106676300A CN201710031739.2A CN201710031739A CN106676300A CN 106676300 A CN106676300 A CN 106676300A CN 201710031739 A CN201710031739 A CN 201710031739A CN 106676300 A CN106676300 A CN 106676300A
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- China
- Prior art keywords
- aluminium
- alloy
- minutes
- temperature
- rolling
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Classifications
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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
- C22C1/026—Alloys based on aluminium
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
Abstract
The invention relates to a production process for a round aluminium alloy rod for electrical engineering. The production process is characterized by adopting a continuous tandem rolling production manner, and comprising the following steps: (1) filling molten aluminium with an aluminium content of more than 99.60% in a smelting furnace, and controlling the temperature of the molten aluminium at 710-770 DEG C; (2) adding 1kg of industrial silicon, 5kg of iron agent with an iron content of 75% and 3kg of copper agent with a copper content of 75% per ton of aluminium; (3) standing for 10-20 minutes, and adding 3kg of rare-earth alloy and 4.5kg of aluminium-boron alloy per ton of aluminium; (4) controlling a temperature in the furnace at 720-760 DEG C, starting up electromagnetic stirring and stirring an aluminium alloy melt for 15-40 minutes; (5) spraying a refining agent by virtue of argon with a pressure of 0.1-0.2MPa and refining for 10-30 minutes after a sampling analysis meets alloy standard requirements; and (6) standing for 20-40 minutes and rotating the furnace after the refining is completed. The elongation of the round aluminium alloy rod obtained by the production process disclosed by the invention meets the drawing requirement of an aluminium rod, greatly reduces loss during a power transmission process, and can realize large-span long-distance high-voltage power transmission.
Description
Technical field
The present invention relates to a kind of production technology of alloy round aluminum rod, especially a kind of production work of electrician's alloy round aluminum rod
Skill, belongs to aluminium alloy wires processing technique field.
Background technology
Electrician is mainly used in electric wire raw material with alloy round aluminum rod, and the product performance index for needing major control is respectively
Tensile strength, percentage elongation, resistivity.The conductive effect of resistivity effects electric wire, mainly by the chemical composition and gas of material
Slag content is determined that the increase of impurity element and gas slag content raises can resistivity, be unfavorable for the control of product quality；Elongation
Rate, affects round aluminum rod to draw processing characteristics, and percentage elongation is big, it is easy to draw processing, and production efficiency is high；Tensile strength affects it
The transmission of electricity of electric wire and built on stilts performance are drawn into, the electric wire of the high equal current-carrying capacity of tensile strength sets up arc during use
Sag is little, can be used for large span power transmission and transformation line.At present, domestic extensive round aluminum rod belongs to fine aluminium series, tensile strength
Not high, transmission of electricity electric wire is mostly steel-cored aluminium strand, from great, to large span long range high voltage power transmission, cable sag degree
Greatly, it is especially unsuitable for having frost high and cold mountain area to use.And existing 6101,6201 alloy round aluminum rod tensile strength are 160-
200MPa, but product resistivity is 36n Ω .m, is lost greatly in the high electricity transmission process of resistivity, and electric cable heating is led when current-carrying capacity is larger
Cause sag degree big, it is more difficult to realize large span long range high voltage power transmission.In order to solve this problem, it is badly in need of a kind of in guarantee resistivity
In the case of increasing degree is less, and tensile strength reaches the electric wire raw material of 160-200MPa.
The content of the invention
It is a kind of in the case of ensureing that resistivity increasing degree is less in order to obtain, and tensile strength reaches 160-200MPa
Electric wire raw material, the mesh of the present invention is to provide a kind of electrician and uses the alloy round aluminum lever production technology, the production technology to be
Continuous casting and rolling, comprises the following steps that：
（1）, install in smelting furnace the aluminium liquid that aluminium content is more than 99.60% so as to temperature control is at 710 ~ 770 DEG C；
（2）, aluminum per ton addition industrial silicon 1kg, the chalybeate 5kg of the iron content 75% and bronze medal agent 3kg of copper content 75%；
（3）, stand 10 ~ 20 minutes after, aluminum per ton adds rare earth alloy 3kg and aluminum-boron alloy 4.5kg；
（4）, control in-furnace temperature at 720 ~ 760 DEG C, open electromagnetic agitation to aluminium alloy melt stir 15 ~ 40 minutes；（5）, sampling
Analysis meets after the requirement of alloy standard, is 0.1 ~ 0.2MPa argon spray refining agent refine 10 ~ 30 minutes with pressure；
（6）, converter in 20 ~ 40 minutes is stood after the completion of refine.
（7）, continuous casting and rolling process for production parameter it is as follows：
The cast temperature of aluminium liquid is controlled at 670 ~ 720 DEG C；Continuous casting and rolling speed is 4.0 ~ 6.0 ton hours；Casting machine cooling water temperature
20 ~ 31 DEG C, 0.2 ~ 0.4MPa of cooling water pressure；Hot rolling enters to roll temperature for 300 ~ 450 DEG C；150 ~ 250 DEG C of finishing temperature；Rolling breast
It is 50 ~ 65 DEG C to change liquid temp, and pressure is 0.25 ~ 0.45 MPa；Take-up temperature is less than 70 DEG C.
Beneficial effects of the present invention are as follows：
The tensile strength of the alloy round aluminum rod reaches 160-200MPa, while resistivity is can be controlled in below 29.0 n Ω .m, and
Percentage elongation meets the requirement of aluminium bar drawing, is greatly lowered in electricity transmission process and is lost, and is capable of achieving large span long range high voltage power transmission.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the present embodiment is clearly and completely described, is shown
So, described embodiment is only rather than the example of whole to a part of example of the invention.Based on the enforcement in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not paid is belonged to
The scope of protection of the invention.
Embodiment 1
A kind of electrician of the present embodiment uses alloy round aluminum lever production technology, and the production technology is continuous casting and rolling, and concrete steps are such as
Under：
（1）, in smelting furnace install the aluminium liquid that aluminium content is more than 99.60% by Production requirement amount so as to temperature control is 748
℃；
（2）, aluminum per ton addition industrial silicon 1kg, the chalybeate 5kg of the iron content 75% and bronze medal agent 3kg of copper content 75%；
（3）, stand 15 minutes after, aluminum per ton adds rare earth alloy 3kg and aluminum-boron alloy 4.5kg, the rare earth include lanthanum La and
Cerium Ce；
（4）, make in-furnace temperature control at 739 DEG C, open electromagnetic agitation to aluminium alloy melt stir 38 minutes；
（5）, sample analysis meet alloy standard require after, dusted with 0.1 ~ 0.2MPa argon（Refining agent）Refine 30 minutes；
（6）, 35 minutes converter producings are stood after the completion of refine；
（7）, continuous casting and rolling process for production parameter it is as follows：
The cast temperature of aluminium liquid is controlled at 700 ~ 715 DEG C；Continuous casting and rolling speed is 6.4 ton hours；Casting machine cooling water temperature 22
DEG C, cooling water pressure 0.35MPa；Hot rolling enters to roll temperature for 400 ~ 450 DEG C；220 ~ 240 DEG C of finishing temperature；Rolling emulsion temperature
For 59 ~ 65 DEG C, pressure is 0.26 ~ 0.30 MPa；Take-up temperature is 50 ~ 55 DEG C.
Embodiment 2
A kind of electrician of the present embodiment uses alloy round aluminum lever production technology, and the production technology is continuous casting and rolling, and concrete steps are such as
Under：
（1）, in smelting furnace install the aluminium liquid that aluminium content is more than 99.60% by Production requirement amount so as to temperature control is 760
℃；
（2）, aluminum per ton addition industrial silicon 1kg, the chalybeate 5kg of the iron content 75% and bronze medal agent 3kg of copper content 75%；
（3）, stand 19 minutes after, aluminum per ton adds rare earth alloy 3kg and aluminum-boron alloy 4.5kg, the rare earth include lanthanum La and
Cerium Ce；
（4）, make in-furnace temperature control at 756 DEG C, open electromagnetic agitation to aluminium alloy melt stir 40 minutes；
（5）, sample analysis meet alloy standard require after, dusted with 0.1 ~ 0.2MPa argon（Refining agent）Refine 29 minutes；
（6）, 33 minutes converter producings are stood after the completion of refine；
（7）, continuous casting and rolling process for production parameter it is as follows：
The cast temperature of aluminium liquid is controlled at 680 ~ 690 DEG C；Continuous casting and rolling speed is 7.0 ton hours；Casting machine cooling water temperature 23
DEG C, cooling water pressure 0.38MPa；Hot rolling enters to roll temperature for 410 ~ 440 DEG C；210 ~ 237 DEG C of finishing temperature；Rolling emulsion temperature
For 60 ~ 65 DEG C, pressure is 0.28 ~ 0.34 MPa；Take-up temperature is 58 ~ 64 DEG C.
The tensile strength of the alloy round aluminum rod that the present invention is obtained, percentage elongation, resistivity are as shown in the table：
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (1)
1. a kind of production technology of electrician's alloy round aluminum rod, it is characterised in that：The production technology is continuous casting and rolling, by following
Step is carried out：
（1）, install in smelting furnace the aluminium liquid that aluminium content is more than 99.60% so as to temperature control is at 710 ~ 770 DEG C；
（2）, aluminum per ton addition industrial silicon 1kg, the chalybeate 5kg of the iron content 75% and bronze medal agent 3kg of copper content 75%；
（3）, stand 10 ~ 20 minutes after, aluminum per ton adds rare earth alloy 3kg and aluminum-boron alloy 4.5kg；
（4）, control in-furnace temperature at 720 ~ 760 DEG C, open electromagnetic agitation to aluminium alloy melt stir 15 ~ 40 minutes；（5）, sampling
Analysis meets after the requirement of alloy standard, is 0.1 ~ 0.2MPa argon spray refining agent refine 10 ~ 30 minutes with pressure；
（6）, converter in 20 ~ 40 minutes is stood after the completion of refine；
（7）, continuous casting and rolling process for production parameter it is as follows：
The cast temperature of aluminium liquid is controlled at 670 ~ 720 DEG C；Continuous casting and rolling speed is 4.0 ~ 6.0 ton hours；Casting machine cooling water temperature
20 ~ 31 DEG C, 0.2 ~ 0.4MPa of cooling water pressure；Hot rolling enters to roll temperature for 300 ~ 450 DEG C；150 ~ 250 DEG C of finishing temperature；Rolling breast
It is 50 ~ 65 DEG C to change liquid temp, and pressure is 0.25 ~ 0.45 MPa；Take-up temperature is less than 70 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031739.2A CN106676300B (en) | 2017-01-17 | 2017-01-17 | A kind of production technology of alloy round aluminum rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031739.2A CN106676300B (en) | 2017-01-17 | 2017-01-17 | A kind of production technology of alloy round aluminum rod |
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| CN106676300A true CN106676300A (en) | 2017-05-17 |
| CN106676300B CN106676300B (en) | 2018-07-17 |
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| CN201710031739.2A Active CN106676300B (en) | 2017-01-17 | 2017-01-17 | A kind of production technology of alloy round aluminum rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805748A (en) * | 2017-10-30 | 2018-03-16 | 天津市津和双金属线材有限公司 | A kind of high heat-resisting electrical aluminum rod formula |
| CN110948186A (en) * | 2019-12-17 | 2020-04-03 | 金湖龙兴达汽配有限公司 | Production method of anti-overflow exhaust valve |
| CN113369331A (en) * | 2021-06-10 | 2021-09-10 | 云南铝业股份有限公司 | Continuous casting and rolling preparation method of 6061 aluminum alloy round rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074465A (en) * | 2007-04-30 | 2007-11-21 | 广东雄力双利电缆有限公司 | Production of high-strength heat-resisting aluminum-alloy overhead transmission connecting wire |
| CN101492783A (en) * | 2009-02-27 | 2009-07-29 | 云南铝业股份有限公司 | Formulating method for Al-Cu alloy round aluminum rod |
| CN101956103A (en) * | 2010-10-20 | 2011-01-26 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN104498747A (en) * | 2014-12-25 | 2015-04-08 | 云南铝业股份有限公司 | Preparation method of Al-Zr-RE alloy round aluminum rod |
| CN106119612A (en) * | 2016-06-14 | 2016-11-16 | 江苏亨通电力特种导线有限公司 | Strength aluminium alloy material and preparation method thereof in one |
-
2017
- 2017-01-17 CN CN201710031739.2A patent/CN106676300B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074465A (en) * | 2007-04-30 | 2007-11-21 | 广东雄力双利电缆有限公司 | Production of high-strength heat-resisting aluminum-alloy overhead transmission connecting wire |
| CN101492783A (en) * | 2009-02-27 | 2009-07-29 | 云南铝业股份有限公司 | Formulating method for Al-Cu alloy round aluminum rod |
| CN101956103A (en) * | 2010-10-20 | 2011-01-26 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN104498747A (en) * | 2014-12-25 | 2015-04-08 | 云南铝业股份有限公司 | Preparation method of Al-Zr-RE alloy round aluminum rod |
| CN106119612A (en) * | 2016-06-14 | 2016-11-16 | 江苏亨通电力特种导线有限公司 | Strength aluminium alloy material and preparation method thereof in one |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805748A (en) * | 2017-10-30 | 2018-03-16 | 天津市津和双金属线材有限公司 | A kind of high heat-resisting electrical aluminum rod formula |
| CN110948186A (en) * | 2019-12-17 | 2020-04-03 | 金湖龙兴达汽配有限公司 | Production method of anti-overflow exhaust valve |
| CN110948186B (en) * | 2019-12-17 | 2021-10-29 | 金湖龙兴达汽配有限公司 | Production method of anti-overflow exhaust valve |
| CN113369331A (en) * | 2021-06-10 | 2021-09-10 | 云南铝业股份有限公司 | Continuous casting and rolling preparation method of 6061 aluminum alloy round rod |
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| CN106676300B (en) | 2018-07-17 |
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Address after: 650000 Yunnan Aluminum Co., Ltd. Qidian Township, Chenggong County, Kunming City, Yunnan Province Patentee after: Yunnan Aluminium Co., Ltd. Address before: 650000 Yunnan Province Kunming Gongxian Qidian Township Yunnan Aluminum Industry Co., Ltd. Patentee before: Yunnan Aluminium Co., Ltd. |
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