CN115838884A - High-purity aluminum-nickel alloy material and preparation method thereof - Google Patents
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- 239000000956 alloy Substances 0.000 title claims abstract description 82
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical class [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 51
- 229910018507 Al—Ni Inorganic materials 0.000 claims abstract description 41
- 229910018125 Al-Si Inorganic materials 0.000 claims abstract description 37
- 229910018520 Al—Si Inorganic materials 0.000 claims abstract description 37
- 238000005266 casting Methods 0.000 claims abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract 14
- 238000003723 Smelting Methods 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 14
- 230000006698 induction Effects 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 229910000828 alnico Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 230000004927 fusion Effects 0.000 abstract 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The invention relates to the field of aluminum alloy materials, and discloses a high-purity aluminum-nickel alloy material and a preparation method thereof, wherein the high-purity aluminum-nickel alloy material is prepared by taking high-purity Al (5N-6N), ni (5N-6N) and Si (5N-6N) as raw materials and preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy through fusion casting; the mass contents of the elements of the alloy are respectively Ni:40-60ppm, si:5-10ppm, and the mass content of impurity elements is respectively Fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm and other impurities, the total impurity content is less than 20ppm, and the balance is Al; the aluminum-nickel alloy prepared by the method has high purity, uniform components and excellent ductility and conductivity, and is an ideal material for preparing semiconductor parts such as aluminum alloy bonding wires.
Description
Technical Field
The invention relates to the field of aluminum alloy materials, in particular to a high-purity aluminum-nickel alloy material and a preparation method thereof.
Background
The bonding wire is one of four basic materials (a chip, a lead frame, the bonding wire and a sealing material) assembled by a semiconductor device and an integrated circuit, is used as an inner lead between the chip and the lead frame, realizes stable and reliable electric connection, and is widely applied to integrated circuits, discrete devices, photoelectric devices and power devices.
At present, a bonding wire material mainly comprises a gold wire, a copper wire, a silver wire and an aluminum wire; the gold wire is the most traditional bonding wire material, has good electric and heat conductivity and chemical stability, and is mostly used for preparing high-end semiconductor products; however, as the price of gold is constantly rising, the gold bonding wire is gradually replaced by copper wire, silver wire and aluminum wire with low cost; the aluminum wire has excellent bonding performance and humidity resistance, and can pass larger current under severe environment; in recent years, aluminum bonding wire materials have exhibited a relatively rapid growth rate;
patent number CN202110887185.2 discloses a bonded aluminum alloy wire and a preparation method thereof: by adding silver to aluminum: 2.3 to 5.8 weight percent; platinum: 1.2 to 4.04wt percent; palladium: 0.13 to 0.85 weight percent; lithium: 0.01 to 0.001wt%; cerium: 0.001 to 0.005wt%; magnesium: 1-30 ppm; indium (b): 0.015-0.080 wt%; zinc: 0.00035 to 0.00090wt percent; beryllium: 0.00055-0.00145 wt% of elements and the like to prepare the aluminum alloy bonding wire with high elongation and strength;
however, the aluminum alloy material needs to add expensive alloying elements such as platinum and palladium, and the cost of the raw materials is increased; in addition, beryllium is extremely toxic, greatly harms engineering technicians and is not beneficial to environmental protection.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-purity aluminum-nickel alloy material and a preparation method thereof, which are used for overcoming the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-purity aluminum-nickel alloy material comprises the following elements in percentage by mass: ni:40-60ppm, si:5-10ppm, fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm, and the balance of Al and impurity elements, wherein the content of the total impurity elements is less than 20ppm.
As a further improvement of the invention, the mass contents of the elements in the aluminum-nickel alloy are respectively as follows: ni:50-60ppm, si:8-10ppm, fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm, and the balance of Al and impurity elements, wherein the content of the total impurity elements is less than 20ppm.
As a further improvement of the invention, the mass contents of the elements in the aluminum-nickel alloy are respectively as follows: ni:52.613ppm, si:9.025ppm, fe: 1.1699 ppm, cu:0.63ppm, ti:0.059ppm, mn:0.068ppm, mg:0.55ppm, ag:0.089ppm, ca:0.091ppm, the balance being Al and impurity elements, wherein the total impurity element content is less than 20ppm.
A preparation method of a high-purity aluminum-nickel alloy material comprises the following steps:
s1, preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
s2, dividing the Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, wherein the smelting temperature is 750-760 ℃;
s3, fully stirring for 30-40min after the solid metal is completely melted;
s4, degassing for 10-20min by using protective gas, and fishing slag;
and S5, cooling to 710-730 ℃ for casting.
As a further improvement of the invention, the preparation method of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction smelting furnace, vacuumizing, adopting argon protection, and gradually heating to 1000-1100 ℃;
III, fully stirring for 20-40min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 720-750 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components.
As a further improvement of the invention, the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.1wt% to 0.5wt%.
As a further improvement of the invention, the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.1wt% to 0.5wt%.
As a further improvement of the invention, the casting speed in the step S5 is 100-110mm/min, and the cooling water flow is 200-350L/min.
As a further improvement of the invention, the vacuum degree in the step II is in the range of 0.04-0.06MPa.
The invention has the beneficial effects that: the high-purity aluminum-nickel alloy material prepared by the invention has high purity, avoids the influence of impurity elements on the material performance, and has high conductivity;
in addition, the high-purity aluminum-nickel alloy material is added with 40-60ppm of Ni element and 5-10ppm of Si element, so that the strength and the ductility of the material are enhanced;
in the invention, ni and Si elements are added in the mode of low mass fraction Al-Ni (Ni: 0.1wt% -0.5 wt%) and Al-Si (Si: 0.1wt% -0.5 wt%) intermediate alloy, the main function is to reduce the temperature required by the Ni and Si elements during casting, and the other important function is to play a role of pre-diluting the Ni and Si elements.
Drawings
FIG. 1 is a photograph of the microstructure of a high purity Al-Ni alloy in example 1 of the present invention;
FIG. 2 shows CT flaw detection results of high purity Al-Ni alloy in example 1 of the present invention;
FIG. 3 is a photograph of the microstructure of a high purity Al-Ni alloy in example 2 of the present invention;
FIG. 4 is a photograph of the microstructure of a high purity Al-Ni alloy in example 3 of the present invention;
FIG. 5 is a photograph of the microstructure of a high purity AlNiAl alloy in example 4 of the present invention;
FIG. 6 is a photograph of the microstructure of a high purity AlNiCo alloy in example 5 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In the high-purity aluminum-nickel alloy material of the embodiment, the mass contents of the elements in the aluminum-nickel alloy are respectively as follows: ni:40-60ppm, si:5-10ppm, fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm, and the balance of Al and impurity elements, wherein the content of the total impurity elements is less than 20ppm.
The mass contents of all elements in the aluminum-nickel alloy are respectively as follows: ni:50-60ppm, si:8-10ppm, fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm, and the balance of Al and impurity elements, wherein the content of the total impurity elements is less than 20ppm.
The following examples employ the following raw materials: the used raw materials are high-purity Al, ni and Si, and the purity of the raw materials is 5N-6N, namely 99.999% -99.9999%;
the protective gas is argon, and the concentration is 99.999 percent;
example 1: preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
wherein the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.1wt%, and the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.1wt%;
the vacuum casting process of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction smelting furnace, vacuumizing to 0.05MPa of vacuum degree, adopting argon protection, and gradually heating to 1000 ℃;
III, fully stirring for 20min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 730 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components;
the casting process of the high-purity aluminum-nickel alloy comprises the following steps:
s1, dividing Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, wherein the smelting temperature is 750 ℃;
s2, fully stirring for 30min after the solid metal is completely melted;
s3, degassing for 20min by using protective gas, and fishing slag;
and S4, cooling to 710 ℃ for casting, wherein the casting speed is 100mm/min, and the cooling water flow is 350L/min.
The chemical compositions of the high-purity aluminum-nickel alloy material obtained in example 1 are shown in table 1, the microstructure is shown in fig. 1, the CT flaw detection result is shown in fig. 2, and the CT flaw detection result shows that example 1 has uniform texture and no obvious casting defects.
TABLE 1 chemical composition of high-purity AlNiAl alloy Material (unit: ppm)
Example 2: preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
wherein the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.2wt%, and the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.35wt%;
the vacuum casting process of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction smelting furnace, vacuumizing to 0.05MPa of vacuum degree, adopting argon protection, and gradually heating to 1000 ℃;
III, fully stirring for 30min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 720 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components;
the casting process of the high-purity aluminum-nickel alloy comprises the following steps:
s1, dividing Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, wherein the smelting temperature is 760 ℃;
s2, fully stirring for 30min after the solid metal is completely melted;
s3, degassing for 10min by using protective gas, and fishing slag;
and S4, cooling to 730 ℃ for casting, wherein the casting speed is 110mm/min, and the cooling water flow is 350L/min.
The chemical composition of the high-purity aluminum-nickel alloy material obtained in example 2 is shown in table 2, and the microstructure thereof is shown in fig. 3.
TABLE 2 chemical composition of high-purity AlNiAl alloy Material (unit: ppm)
Example 3: preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
wherein the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.4wt%, and the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.4wt%;
the vacuum casting process of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction melting furnace, vacuumizing to 0.06MPa of vacuum degree, adopting argon protection, and gradually heating to 1100 ℃;
III, fully stirring for 40min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 750 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components;
the casting process of the high-purity aluminum-nickel alloy comprises the following steps:
s1, dividing Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, wherein the smelting temperature is 750 ℃;
s2, fully stirring for 40min after the solid metal is completely melted;
s3, degassing for 20min by using protective gas, and fishing slag;
and S4, cooling to 730 ℃ for casting, wherein the casting speed is 110mm/min, and the cooling water flow is 200L/min.
The chemical composition of the high-purity aluminum-nickel alloy material obtained in example 3 is shown in table 3, and the microstructure thereof is shown in fig. 4.
TABLE 3 chemical composition of high-purity AlNiAl alloy Material (unit: ppm)
Example 4: preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
wherein the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.5wt%, and the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.5wt%;
the vacuum casting process of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction melting furnace, vacuumizing to 0.05MPa of vacuum degree, adopting argon protection, and gradually heating to 1100 ℃;
III, fully stirring for 30min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 720 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components;
the casting process of the high-purity aluminum-nickel alloy comprises the following steps:
s1, dividing Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, and smelting at the temperature of 750 ℃;
s2, fully stirring for 30min after the solid metal is completely melted;
s3, degassing for 15min by using protective gas, and fishing slag;
and S4, cooling to 720 ℃ for casting, wherein the casting speed is 105mm/min, and the cooling water flow is 300L/min.
The chemical composition of the high-purity aluminum-nickel alloy material obtained in example 4 is shown in table 4, and the microstructure thereof is shown in fig. 5.
TABLE 4 chemical composition of high-purity AlNiAl alloy Material (unit: ppm)
Example 5: preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
wherein the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.2wt%, and the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.2wt%;
the vacuum casting process of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction smelting furnace, vacuumizing to 0.04MPa of vacuum degree, adopting argon protection, and gradually heating to 1000 ℃;
III, fully stirring for 20min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 720 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components;
the casting process of the high-purity aluminum-nickel alloy comprises the following steps:
s1, dividing Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, and smelting at the temperature of 750 ℃;
s2, fully stirring for 35min after the solid metal is completely melted;
s3, degassing for 15min by using protective gas, and fishing slag;
and S4, cooling to 710 ℃ for casting, wherein the casting speed is 100mm/min, and the cooling water flow is 300L/min.
The chemical composition of the high-purity aluminum-nickel alloy material obtained in example 5 is shown in table 5, and the microstructure thereof is shown in fig. 6.
TABLE 5 chemical composition of high-purity AlNiAl alloy Material (Unit: ppm)
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. A high-purity aluminum-nickel alloy material is characterized in that: the mass contents of all elements in the aluminum-nickel alloy are respectively as follows: ni:40-60ppm, si:5-10ppm, fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm, and the balance of Al and impurity elements, wherein the content of the total impurity elements is less than 20ppm.
2. A high purity alnico material as defined in claim 1, wherein: the mass contents of all elements in the aluminum-nickel alloy are respectively as follows: ni:50-60ppm, si:8-10ppm, fe: < 5ppm, cu: < 5ppm, ti: < 2ppm, mn: < 3ppm, mg: < 5ppm, ag: < 3ppm, ca: less than 5ppm, and the balance of Al and impurity elements, wherein the content of the total impurity elements is less than 20ppm.
3. A high purity alnico material as defined in claim 2, wherein: the mass contents of all elements in the aluminum-nickel alloy are respectively as follows: ni:52.613ppm, si:9.025ppm, fe: 1.1699 ppm, cu:0.63ppm, ti:0.059ppm, mn:0.068ppm, mg:0.55ppm, ag:0.089ppm, ca:0.091ppm, the balance being Al and impurity elements, wherein the total impurity element content is less than 20ppm.
4. The method for preparing a high-purity aluminum-nickel alloy material according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
s1, preparing low-mass-fraction Al-Ni and Al-Si intermediate alloy by using a vacuum induction smelting furnace;
s2, dividing the Al-Ni and Al-Si intermediate alloy into small blocks, uniformly placing the small blocks and a high-purity aluminum ingot into a smelting furnace according to the chemical composition of the high-purity aluminum-nickel alloy, wherein the smelting temperature is 750-760 ℃;
s3, fully stirring for 30-40min after the solid metal is completely melted;
s4, degassing for 10-20min by using protective gas, and fishing slag;
and S5, cooling to 710-730 ℃ for casting.
5. The method for preparing a high-purity aluminum-nickel alloy material according to claim 4, wherein the method comprises the following steps: the preparation method of the Al-Ni and Al-Si intermediate alloy comprises the following steps:
I. taking high-purity Al, ni and Si with the purity of 5N-6N, and mixing the materials according to the mass percentage;
II. Putting the raw materials into a vacuum induction smelting furnace, vacuumizing, adopting argon protection, and gradually heating to 1000-1100 ℃;
III, fully stirring for 20-40min after the solid metal is completely melted;
IV, fishing slag, and pouring after cooling to 720-750 ℃ to obtain Al-Ni and Al-Si intermediate alloys with uniform components.
6. The method for preparing a high-purity aluminum-nickel alloy material according to claim 5, wherein the method comprises the following steps: the Al-Ni intermediate alloy comprises the following components in percentage by mass: 0.1wt% to 0.5wt%.
7. The method for preparing a high-purity aluminum-nickel alloy material according to claim 5, wherein the method comprises the following steps: the Al-Si intermediate alloy comprises the following components in percentage by mass: 0.1wt% to 0.5wt%.
8. The method for preparing a high-purity aluminum-nickel alloy material according to claim 4, wherein the method comprises the following steps: wherein the casting speed in the step S5 is 100-110mm/min, and the cooling water flow is 200-350L/min.
9. The method for preparing a high-purity aluminum-nickel alloy material according to claim 4, wherein the method comprises the following steps: wherein the vacuum degree range in the step II is 0.04-0.06MPa.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007070670A (en) * | 2005-09-06 | 2007-03-22 | Sumitomo Chemical Co Ltd | High-purity aluminum alloy material |
| CN105803268A (en) * | 2016-02-01 | 2016-07-27 | 新疆众和股份有限公司 | Production method of parent rod for bonding aluminium wire |
| CN109628897A (en) * | 2018-12-06 | 2019-04-16 | 新疆众和股份有限公司 | A kind of high-purity alusil alloy sputtering target material blank and preparation method thereof |
| CN111719059A (en) * | 2020-06-11 | 2020-09-29 | 新疆众和股份有限公司 | Preparation method of fine-grain high-purity aluminum-silicon-copper alloy target blank for sputtering |
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2022
- 2022-12-12 CN CN202211596617.5A patent/CN115838884A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007070670A (en) * | 2005-09-06 | 2007-03-22 | Sumitomo Chemical Co Ltd | High-purity aluminum alloy material |
| CN105803268A (en) * | 2016-02-01 | 2016-07-27 | 新疆众和股份有限公司 | Production method of parent rod for bonding aluminium wire |
| CN109628897A (en) * | 2018-12-06 | 2019-04-16 | 新疆众和股份有限公司 | A kind of high-purity alusil alloy sputtering target material blank and preparation method thereof |
| CN111719059A (en) * | 2020-06-11 | 2020-09-29 | 新疆众和股份有限公司 | Preparation method of fine-grain high-purity aluminum-silicon-copper alloy target blank for sputtering |
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