CN112899530A - Aluminum alloy conductor material and preparation method thereof - Google Patents
Aluminum alloy conductor material and preparation method thereof Download PDFInfo
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- CN112899530A CN112899530A CN202110063257.1A CN202110063257A CN112899530A CN 112899530 A CN112899530 A CN 112899530A CN 202110063257 A CN202110063257 A CN 202110063257A CN 112899530 A CN112899530 A CN 112899530A
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- 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
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- 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
- B21B1/466—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 non-continuous process, i.e. the cast being cut before rolling
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The invention discloses an aluminum alloy conductor material and a preparation method thereof, wherein the aluminum alloy conductor material is prepared from the following raw materials in parts by mass: 60-80 parts of aluminum, 15-20 parts of iron, 10-15 parts of copper, 5-10 parts of silicon, 3-5 parts of magnesium, 1-3 parts of zinc, 1-3 parts of boron, 1-2 parts of manganese, 1-2 parts of titanium, 1-2 parts of nickel, 1-2 parts of zirconium, 1-2 parts of rare metal and unavoidable impurities. Has the advantages that: by controlling the heating temperature, the annealing temperature and the cold and hot rolling process thereof and matching with the components of the materials, the strength, the electric conductivity, the heat resistance, the flexural fatigue resistance, the corrosion resistance and the creep resistance of the aluminum alloy conductor are improved.
Description
Technical Field
The invention relates to the technical field of alloy materials, in particular to an aluminum alloy conductor material and a preparation method thereof.
Background
The cable industry is the second largest industry second to the automobile manufacturing industry, while the wire and cable industry is a large household using copper, accounting for about 68% of the total copper, and the cable industry will have a certain trend of replacing copper with aluminum alloy in the face of the continuous rising of the depleted copper mine resource and copper price. The high-temperature-resistant high-conductivity high-ductility high-fatigue-resistance high-creep-resistance high-corrosion-resistance high-wear-resistance high-conductivity cable has high extensibility, fatigue resistance and creep resistance, and meets the requirements of high comprehensive performance and high use of the high-temperature-resistant high-wear-resistance high-conductivity high-corrosion-resistance high-wear-resistance. At present, a plurality of aluminum alloys exist, but most of the aluminum alloys only aim at a certain product, how to improve the comprehensive performance of the aluminum alloy conductor and enable the aluminum alloy conductor to be wider in application range, and the aluminum alloy conductor is the most urgent need of the aluminum alloy conductor material at present.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides an aluminum alloy conductor material and a preparation method thereof, aiming at the problems in the related art, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
according to one aspect of the invention, an aluminum alloy conductor material and a preparation method thereof are provided
The aluminum alloy conductor material is prepared from the following raw materials in parts by mass:
60-80 parts of aluminum, 15-20 parts of iron, 10-15 parts of copper, 5-10 parts of silicon, 3-5 parts of magnesium, 1-3 parts of zinc, 1-3 parts of boron, 1-2 parts of manganese, 1-2 parts of titanium, 1-2 parts of nickel, 1-2 parts of zirconium, 1-2 parts of rare metal and unavoidable impurities;
further, the rare metals include one or more of scandium, rhenium, erbium, yttrium, tungsten, lanthanum, cerium.
Further, the preparation of the aluminum alloy conductor material comprises the following steps:
weighing all raw materials required by the aluminum alloy conductor material according to the mass parts;
taking an industrial aluminum ingot and putting the industrial aluminum ingot into a smelting furnace, and carrying out stepped high-temperature heating on the smelting furnace to completely melt the aluminum ingot to obtain aluminum liquid;
sequentially adding iron, copper, silicon and magnesium into the molten aluminum, stirring and mixing uniformly after the iron, copper, silicon and magnesium are completely molten, and maintaining the temperature unchanged;
cooling the smelting furnace, then sequentially adding zinc, boron, manganese, titanium, nickel, zirconium and rare metals, completely melting, and uniformly stirring and mixing to obtain mixed metal liquid;
carrying out heat preservation treatment on the mixed molten metal, introducing high-pressure nitrogen into a smelting furnace for refining, and then slagging off;
after slagging off is finished, introducing inert gas into the smelting furnace, and then filtering the mixed molten metal to obtain a clean aluminum alloy solution;
and (3) pouring the aluminum alloy solution into a casting machine for casting to form casting strips, and rolling the casting strips into the aluminum alloy conductor material with the designed size by a rolling mill.
Further, in the second step, the heating temperature is rapidly increased to 850 ℃ after being heated for ten minutes from 500 ℃, and the temperature is reduced to 800 ℃ after the aluminum ingot is completely melted.
And further, in the fourth step, after the temperature is reduced to 750 ℃, keeping the temperature at 750 ℃ unchanged, and then sequentially adding zinc, boron, manganese, titanium, nickel, zirconium and rare metals into the smelting furnace.
And further, adding nitrogen in the fifth step for twenty minutes, then adding a refining agent for refining, and exhausting and removing slag after refining for fifteen minutes.
Furthermore, in the seventh step, the pouring temperature is controlled at 700-730 ℃, and the pouring speed is 4000Kg-4500Kg per hour.
Further, in the seventh step, the surface of the cast strip is milled, hot rolling is carried out at the temperature of 480-.
The invention adopts the following raw materials in parts:
iron: ferrous metal is one of the most widely distributed metals on earth. About 5.1% of the crust mass, the fourth place in the distribution sequence of the elements, next to oxygen, silicon and aluminum. Iron is a lustrous silvery white metal, hard and ductile, has a melting point of 1535 ℃, a boiling point of 3000 ℃, strong ferromagnetism, and good plasticity and thermal conductivity. The specific heat capacity is about 0.46 x 1000J/KG x C, and the iron metal is taken from iron ore. Limestone, coke and iron ore are put into a blast furnace layer by layer, high-temperature airflow is blown from the bottom to make the coke glow red, and then iron is reduced from oxides, melted into liquid and flows out from the bottom of the furnace.
Copper: copper is the earliest metal used by humans. In early prehistoric times, people began to mine open-air copper ores and use the obtained copper to manufacture weapons, utensils and other utensils, and the use of copper has a profound effect on the progress of early human civilization. Copper is a metal present in the earth's crust and in the ocean. The copper content in the earth crust is about 0.01%, and in individual copper deposits, the copper content can reach 3% to 5%. Copper in nature is mostly present as a compound, i.e., a copper mineral. The copper ore and other minerals are polymerized into copper ore, and the mined copper ore is subjected to mineral separation to form copper concentrate with high copper-containing grade. Is the only metal which can be produced in large quantities naturally, is also present in various ores and can be used in the elemental metallic state and in the form of brass, bronze and other alloys in industry, engineering and processes.
Magnesium: magnesium is a light, ductile, silvery white metal. Is the eighth most abundant element in earth's crust and also the ninth most element in universe. Density 1.74 g/cm3Melting point 648.8 ℃. Boiling point 1107 ℃. Valence +2, ionization energy 7.646 ev, is one of the light metals, ductile, reacts with hot water to release hydrogen, and burns to produce dazzling white light, and many metals are prepared by thermal reduction of their salts and oxides. Magnesium metal can be combined with most non-metals and almost all acids, most bases, and organic chemicals including hydrocarbons, aldehydes, alcohols, phenols, amines, fats and most oils, with magnesium only slightly or not at all.
The invention has the beneficial effects that: by controlling the heating temperature, the annealing temperature and the cold and hot rolling process thereof and matching with the components of the materials, the strength, the electric conductivity, the heat resistance, the flexural fatigue resistance, the corrosion resistance and the creep resistance of the aluminum alloy conductor are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flowchart of a method for manufacturing an aluminum alloy conductor material according to an embodiment of the present invention.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, an aluminum alloy conductor material and a preparation method are provided.
According to the aluminum alloy conductor material provided by the embodiment of the invention, the aluminum alloy conductor material is prepared from the following raw materials in parts by mass:
60-80 parts of aluminum, 15-20 parts of iron, 10-15 parts of copper, 5-10 parts of silicon, 3-5 parts of magnesium, 1-3 parts of zinc, 1-3 parts of boron, 1-2 parts of manganese, 1-2 parts of titanium, 1-2 parts of nickel, 1-2 parts of zirconium, 1-2 parts of rare metal and unavoidable impurities;
example one
An aluminum alloy conductor material is prepared from the following raw materials in parts by mass:
60g of aluminum, 15g of iron, 10g of copper, 5g of silicon, 3g of magnesium, 1g of zinc, 1g of boron, 1g of manganese, 1g of titanium, 1g of nickel, 1g of zirconium, 1g of rare metal and unavoidable impurities.
The preparation method of the aluminum alloy conductor material comprises the following steps:
weighing all raw materials required by the aluminum alloy conductor material according to the mass parts;
taking 60g of industrial aluminum ingot, putting the industrial aluminum ingot into a smelting furnace, and heating the smelting furnace at a high temperature in a stepped manner to completely melt the aluminum ingot to obtain aluminum liquid;
adding 15g of iron, 10g of copper, 5g of silicon and 3g of magnesium into the molten aluminum in sequence, stirring and mixing uniformly after 15g of iron, 10g of copper, 5g of silicon and 3g of magnesium are completely molten, and keeping the temperature unchanged;
cooling a smelting furnace, sequentially adding 1g of zinc, 1g of boron, 1g of manganese, 1g of titanium, 1g of nickel, 1g of zirconium and 1g of rare metal, completely melting, and uniformly stirring and mixing to obtain mixed metal liquid;
carrying out heat preservation treatment on the mixed molten metal, introducing high-pressure nitrogen into a smelting furnace for refining, and then slagging off;
after slagging off is finished, introducing inert gas into the smelting furnace, and then filtering the mixed molten metal to obtain a clean aluminum alloy solution;
and (3) pouring the aluminum alloy solution into a casting machine for casting to form casting strips, and rolling the casting strips into the aluminum alloy conductor material with the designed size by a rolling mill.
Example two
An aluminum alloy conductor material is prepared from the following raw materials in parts by mass:
70g of aluminum, 14.5g of iron, 12.5g of copper, 7.5g of silicon, 4g of magnesium, 2g of zinc, 2g of boron, 1.5g of manganese, 1.5g of titanium, 1.5g of nickel, 1.5g of zirconium, 1.5g of rare metals and unavoidable impurities.
The preparation method of the aluminum alloy conductor material comprises the following steps:
weighing all raw materials required by the aluminum alloy conductor material according to the mass parts;
taking 70g of industrial aluminum ingot, putting the industrial aluminum ingot into a smelting furnace, and heating the smelting furnace at a high temperature in a stepped manner to completely melt the aluminum ingot to obtain aluminum liquid;
adding 14.5g of iron, 12.5g of copper, 7.5g of silicon and 4g of magnesium into the molten aluminum in sequence, stirring and mixing uniformly after 14.5g of iron, 12.5g of copper, 7.5g of silicon and 4g of magnesium are completely molten, and maintaining the temperature unchanged;
cooling a smelting furnace, sequentially adding 2g of zinc, 2g of boron, 1.5g of manganese, 1.5g of titanium, 1.5g of nickel, 1.5g of zirconium and 1.5g of rare metal, completely melting, stirring and uniformly mixing to obtain mixed metal liquid;
carrying out heat preservation treatment on the mixed molten metal, introducing high-pressure nitrogen into a smelting furnace for refining, and then slagging off;
after slagging off is finished, introducing inert gas into the smelting furnace, and then filtering the mixed molten metal to obtain a clean aluminum alloy solution;
and (3) pouring the aluminum alloy solution into a casting machine for casting to form casting strips, and rolling the casting strips into the aluminum alloy conductor material with the designed size by a rolling mill.
EXAMPLE III
An aluminum alloy conductor material is prepared from the following raw materials in parts by mass:
80g of aluminum, 20g of iron, 15g of copper, 10g of silicon, 5g of magnesium, 3g of zinc, 3g of boron, 2g of manganese, 2g of titanium, 2g of nickel, 2g of zirconium, 2g of rare metal and unavoidable impurities.
The preparation method of the aluminum alloy conductor material comprises the following steps:
weighing all raw materials required by the aluminum alloy conductor material according to the mass parts;
taking 80g of industrial aluminum ingot, putting the industrial aluminum ingot into a smelting furnace, and heating the smelting furnace at a high temperature in a stepped manner to completely melt the aluminum ingot to obtain aluminum liquid;
sequentially adding 20g of iron, 15g of copper, 10g of silicon and 5g of magnesium into the molten aluminum, stirring and uniformly mixing after 20g of iron, 15g of copper, 10g of silicon and 5g of magnesium are completely molten, and keeping the temperature unchanged;
cooling a smelting furnace, sequentially adding 3g of zinc, 3g of boron, 2g of manganese, 2g of titanium, 2g of nickel, 2g of zirconium and 2g of rare metal, completely melting, and uniformly stirring and mixing to obtain mixed metal liquid;
carrying out heat preservation treatment on the mixed molten metal, introducing high-pressure nitrogen into a smelting furnace for refining, and then slagging off;
after slagging off is finished, introducing inert gas into the smelting furnace, and then filtering the mixed molten metal to obtain a clean aluminum alloy solution;
and (3) pouring the aluminum alloy solution into a casting machine for casting to form casting strips, and rolling the casting strips into the aluminum alloy conductor material with the designed size by a rolling mill.
For the convenience of understanding the above technical solution of the present invention, the following detailed description is made on the flow of the above solution of the present invention with reference to the accompanying drawings, and specifically is as follows:
according to the embodiment of the invention, the invention further provides a manufacturing method of the aluminum alloy conductor material.
As shown in FIG. 1, in the actual production process, the preparation of the aluminum alloy conductor material comprises the following steps:
step S101, weighing all raw materials required by the aluminum alloy conductor material according to the mass parts;
step S103, taking an industrial aluminum ingot and putting the industrial aluminum ingot into a smelting furnace, and carrying out stepped high-temperature heating on the smelting furnace to completely melt the aluminum ingot to obtain aluminum liquid;
step S105, sequentially adding iron, copper, silicon and magnesium into the molten aluminum, stirring and mixing uniformly after the iron, copper, silicon and magnesium are completely molten, and maintaining the temperature unchanged;
step S107, cooling the smelting furnace, then sequentially adding zinc, boron, manganese, titanium, nickel, zirconium and rare metals, completely melting, and uniformly stirring and mixing to obtain mixed molten metal;
step S109, carrying out heat preservation treatment on the mixed molten metal, introducing high-pressure nitrogen into a smelting furnace for refining, and then slagging off;
s111, introducing inert gas into the smelting furnace after slagging-off is finished, and filtering the mixed molten metal to obtain a clean aluminum alloy solution;
and step S113, the aluminum alloy solution flows into a casting machine for casting to form casting strips, and the casting strips are rolled into the aluminum alloy conductor material with the designed size by a rolling mill.
In one embodiment, the rare metal comprises one or more of scandium, rhenium, erbium, yttrium, tungsten, lanthanum, cerium.
In one embodiment, the heating temperature in the second step is heated from 500 ℃ for ten minutes and then rapidly increased to 850 ℃, and when the aluminum ingot is completely melted, the temperature is reduced to 800 ℃.
In one embodiment, the temperature after the temperature reduction in the fourth step is 750 ℃, and zinc, boron, manganese, titanium, nickel, zirconium and rare metals are added into the smelting furnace in sequence after the temperature is maintained at 750 ℃.
In one embodiment, the nitrogen is added in the fifth step for twenty minutes, then the refining agent is added for refining, and the gas is exhausted and the slag is removed after fifteen minutes of refining.
In one embodiment, the casting temperature in the seventh step is controlled at 700-730 ℃, and the casting speed is 4000Kg-4500Kg per hour.
In one embodiment, in the seventh step, the surface of the cast strip is milled, the cast strip is hot-rolled at the temperature of 480-.
In conclusion, by means of the technical scheme, the strength, the electric conductivity, the heat resistance, the flexural fatigue resistance, the corrosion resistance and the creep resistance of the aluminum alloy conductor are improved by controlling the heating temperature, the annealing temperature and the cold and hot rolling process thereof and matching with the components of the materials.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The aluminum alloy conductor material is characterized by being prepared from the following raw materials in parts by mass:
60-80 parts of aluminum, 15-20 parts of iron, 10-15 parts of copper, 5-10 parts of silicon, 3-5 parts of magnesium, 1-3 parts of zinc, 1-3 parts of boron, 1-2 parts of manganese, 1-2 parts of titanium, 1-2 parts of nickel, 1-2 parts of zirconium, 1-2 parts of rare metal and unavoidable impurities.
2. The aluminum alloy conductor material as recited in claim 1, wherein the rare metal includes one or more of scandium, rhenium, erbium, yttrium, tungsten, lanthanum, and cerium.
3. A production method of an aluminum alloy conductor material, which is used for the production of the aluminum alloy conductor material according to claim 1, comprising the steps of:
weighing all raw materials required by the aluminum alloy conductor material according to the mass parts;
taking an industrial aluminum ingot and putting the industrial aluminum ingot into a smelting furnace, and carrying out stepped high-temperature heating on the smelting furnace to completely melt the aluminum ingot to obtain aluminum liquid;
sequentially adding iron, copper, silicon and magnesium into the molten aluminum, stirring and mixing uniformly after the iron, copper, silicon and magnesium are completely molten, and maintaining the temperature unchanged;
cooling the smelting furnace, then sequentially adding zinc, boron, manganese, titanium, nickel, zirconium and rare metals, completely melting, and uniformly stirring and mixing to obtain mixed metal liquid;
carrying out heat preservation treatment on the mixed molten metal, introducing high-pressure nitrogen into a smelting furnace for refining, and then slagging off;
after slagging off is finished, introducing inert gas into the smelting furnace, and then filtering the mixed molten metal to obtain a clean aluminum alloy solution;
and (3) pouring the aluminum alloy solution into a casting machine for casting to form casting strips, and rolling the casting strips into the aluminum alloy conductor material with the designed size by a rolling mill.
4. The method for preparing an aluminum alloy conductor material according to claim 3, wherein the heating temperature in the second step is increased from 500 ℃ for ten minutes to 850 ℃, and when the aluminum ingot is completely melted, the temperature is decreased to 800 ℃.
5. The method for preparing the aluminum alloy conductor material according to claim 3, wherein the temperature is 750 ℃ after the temperature is reduced in the fourth step, and zinc, boron, manganese, titanium, nickel, zirconium and rare metals are sequentially added into a smelting furnace after the temperature is maintained at 750 ℃.
6. The method for preparing an aluminum alloy conductor material as recited in claim 3, wherein the duration of the nitrogen gas addition in the fifth step is twenty minutes, then a refining agent is added for refining, and the exhaust and deslagging are performed after fifteen minutes of refining.
7. The method as claimed in claim 3, wherein the casting temperature is controlled at 700-.
8. The method as claimed in claim 3, wherein the casting bar is milled in step seven, hot rolled at 480-500 ℃, then cold rolled to 280 ℃, and annealed at 330-360 ℃ for 1-3h to obtain the aluminum alloy conductor material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289700A (en) * | 2021-12-31 | 2022-04-08 | 扬州洪顺电器有限公司 | Production method of conducting rod |
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| JPS6487785A (en) * | 1987-09-29 | 1989-03-31 | Showa Aluminum Corp | Production of aluminum alloy material having excellent surface hardness and wear resistance |
| US20100170996A1 (en) * | 2009-01-07 | 2010-07-08 | Sankaran Krishnan K | Weldable high-strength aluminum alloys |
| CN102978476A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Re-RE aluminum alloy, and preparation method and power cable thereof |
| CN104616828A (en) * | 2015-01-09 | 2015-05-13 | 芜湖航天特种电缆厂 | High-ductility conductor for cable as well as preparation method and application of conductor |
| RU2015110017A (en) * | 2015-03-20 | 2016-10-20 | Общество с ограниченной ответственностью "СЕВАН" | THERMAL CORROSION RESISTANT ALUMINUM ALLOY |
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2021
- 2021-01-18 CN CN202110063257.1A patent/CN112899530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6487785A (en) * | 1987-09-29 | 1989-03-31 | Showa Aluminum Corp | Production of aluminum alloy material having excellent surface hardness and wear resistance |
| US20100170996A1 (en) * | 2009-01-07 | 2010-07-08 | Sankaran Krishnan K | Weldable high-strength aluminum alloys |
| CN102978476A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Re-RE aluminum alloy, and preparation method and power cable thereof |
| CN104616828A (en) * | 2015-01-09 | 2015-05-13 | 芜湖航天特种电缆厂 | High-ductility conductor for cable as well as preparation method and application of conductor |
| RU2015110017A (en) * | 2015-03-20 | 2016-10-20 | Общество с ограниченной ответственностью "СЕВАН" | THERMAL CORROSION RESISTANT ALUMINUM ALLOY |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114289700A (en) * | 2021-12-31 | 2022-04-08 | 扬州洪顺电器有限公司 | Production method of conducting rod |
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