CN114260433B - Preparation process of novel superconductive high-purity aluminum-based multi-metal laminated material - Google Patents
Preparation process of novel superconductive high-purity aluminum-based multi-metal laminated material Download PDFInfo
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- CN114260433B CN114260433B CN202210000857.8A CN202210000857A CN114260433B CN 114260433 B CN114260433 B CN 114260433B CN 202210000857 A CN202210000857 A CN 202210000857A CN 114260433 B CN114260433 B CN 114260433B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 77
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000002648 laminated material Substances 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000005096 rolling process Methods 0.000 claims abstract description 30
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 18
- 238000005097 cold rolling Methods 0.000 claims abstract description 18
- 238000003723 Smelting Methods 0.000 claims abstract description 13
- 239000011888 foil Substances 0.000 claims abstract description 11
- 238000005098 hot rolling Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003475 lamination Methods 0.000 claims abstract description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 239000002905 metal composite material Substances 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 150000001879 copper Chemical class 0.000 claims description 4
- 238000007872 degassing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 5
- 238000004321 preservation Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention relates to a preparation process of a novel superconductive high-purity aluminum-based multi-metal laminated material, which consists of high-purity aluminum base, copper alloy and cerium group elements in trace light rare earth elements, wherein the weight ratio of the novel superconductive high-purity aluminum-based multi-metal laminated material is as follows: 10-30% of copper alloy, 70-90% of high-purity aluminum base and cerium group elements; the weight ratio of each element in the high-purity aluminum base and cerium group elements is as follows: the content of aluminum in the high-purity aluminum base is 99.75-99.94%, and the content of cerium element is 0.015-0.05%; the preparation process comprises the following steps: s1: alloy proportioning smelting; s2: hot rolling lamination; s3: first cold rolling; s4: internal stress is released by first intermediate heating; s5: secondary cold rolling; s6: the internal stress is released by secondary intermediate heating; s7: foil rolling; s8: and (5) cutting. The preparation process is simple, and the prepared material has smaller thickness, higher quality and more attractive and fine surface.
Description
Technical Field
The invention belongs to the technical field of high-purity aluminum-based preparation, and particularly relates to a preparation process of a novel superconductive high-purity aluminum-based multi-metal laminated material.
Background
China is a large country of aluminum industry, the yield of electrolytic aluminum is in the front of the world, but most of high-purity aluminum depends on import, and as is well known, the high-purity aluminum is widely applied in the fields of power battery industry, communication industry, military industry, electric power industry and the like, and the consumption of the high-purity aluminum is increased year by year. At present, the copper-aluminum composite material exists in the market, the aluminum content is generally 99.7%, the surface resistivity is generally between 0.023 and 0.028 omega m, but the surface cracking phenomenon can occur when the thickness of the copper-aluminum composite material is generally 0.4mm thick, and the quality of a product is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a preparation process of a novel superconductive high-purity aluminum-based multi-metal laminated material, which is simple, and the prepared material has smaller thickness, higher quality and more attractive and fine surface.
The invention adopts the technical scheme that: the novel superconductive high-purity aluminum-based multi-metal laminated material consists of high-purity aluminum base, copper alloy and cerium group element in trace light rare earth elements, and the weight ratio is as follows: 10-30% of copper alloy, 70-90% of high-purity aluminum base and cerium group elements; the weight ratio of each element in the high-purity aluminum base and cerium group elements is as follows: the content of aluminum in the high-purity aluminum base is 99.75-99.94%, and the content of cerium element is 0.015-0.05%.
Specifically, the high-purity aluminum base is high-purity aluminum with the aluminum content of 99.99 percent.
Specifically, the copper alloy is T2 red copper.
The preparation process of the novel superconductive high-purity aluminum-based multi-metal laminated material comprises the following steps of:
s1: alloy proportioning smelting: placing a high-purity aluminum base in a smelting furnace, controlling the temperature in the smelting furnace to gradually rise from 650 ℃ to 800 ℃, adding cerium group elements three times in the heating process, introducing the cerium group elements into a standing furnace by using a diversion trench when the content of each element meets the requirement, keeping the temperature of the standing furnace between 630 ℃ and 770 ℃, and standing for 30-60min to obtain liquid alloy liquid;
s2: hot rolling lamination: the liquid alloy liquid is led into a degassing and filtering box by using a diversion trench, and the weight ratio is as follows according to the application requirement of the product: 70-90% of liquid alloy liquid and 10-30% of copper alloy, wherein the copper alloy is in the form of a copper strip, the quality of the copper strip is calculated according to the weight of the liquid alloy liquid, the copper strip and the liquid alloy liquid are laminated by a hot rolling laminating machine at 600-650 ℃ and hot-rolled into a blank;
s3: first cold rolling: cooling the blank obtained in the step S2 to room temperature, performing first cold rolling treatment, controlling the rolling speed to 300-500m/min and the uncoiling tension to 10-25N/mm 2 The coiling tension is 12-30N/mm 2 The thickness is between 0.6 and 1mm, and a cold-rolled blank is obtained;
s4: the internal stress is released by first intermediate heating: placing the cold-rolled blank obtained in the step S3 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to a temperature of between 100 and 120 ℃ and carrying out nitrogen replacement for 1h, heating to 300 to 350 ℃, heating for 2 to 6h, and keeping the temperature for 2 to 4h, and discharging the blank after the material temperature is reduced to 60 ℃ to obtain the blank subjected to the first heating internal stress treatment;
s5: secondary cold rolling: cooling the blank obtained in the step S4 to room temperature, performing secondary cold rolling treatment, controlling the rolling speed to be 400-600m/min and the uncoiling tension to be 25-31N/mm 2 The coiling tension is 32-34N/mm 2 The thickness is between 0.1 and 0.6mm, and a cold-rolled blank is obtained;
s6: the internal stress is released by secondary intermediate heating: placing the cold-rolled blank obtained in the step S5 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to a temperature of between 100 and 120 ℃ and carrying out nitrogen replacement for 1h, heating to 300 to 350 ℃, heating for 2 to 6h, and keeping the temperature for 2 to 4h, and discharging the blank after the material temperature is reduced to 60 ℃ to obtain a blank subjected to secondary heating and internal stress relief treatment;
s7: foil rolling: feeding the blank obtained in the step S6Performing foil rolling, adopting seamless rolling, controlling rolling speed to be 800-900m/min, and uncoiling tension to be 40-60N/mm 2 The coiling tension is 50-60N/mm 2 The thickness is between 0.035 and 0.1mm, and the multi-metal composite material is obtained;
s8: cutting: cutting the multi-metal composite material at the cutting speed of 400-500m/min, and adjusting the position and angle of a cutting knife according to the specification of a product to cut the multi-metal composite material to the corresponding specification.
Specifically, in the step S1, the cerium group element is added three times during the heating process, specifically: adding 80% of cerium group elements at 700-750 ℃, raising the temperature to 780 ℃ after 40min, adding 10% of cerium group elements, taking a small amount of samples after 30min to analyze alloy components, and adjusting and adding the rest cerium group elements at 800 ℃ according to analysis results so as to enable the content of each element to meet the requirements.
Specifically, the content of each element reaches the requirement, namely the content of the aluminum of the high-purity aluminum base is 99.75-99.94 percent, and the content of the cerium group element is 0.015-0.05 percent.
Specifically, in the step S7, the width of the prepared multi-metal composite material is 500-1250mm during foil rolling.
The invention has the beneficial effects that: the preparation process flow adopted by the invention is simple, the prepared multi-metal laminated material consists of high-purity aluminum base, T2 red copper and cerium group elements, the surface resistivity is effectively reduced, the final processing thickness can reach 0.035mm through the addition of the cerium group elements, the surface is not easy to crack, the thickness is greatly reduced, the quality of the laminated material is improved, meanwhile, raw materials are saved, the production cost of the multi-metal laminated material is reduced, no rolling lines are generated on the surface of the multi-metal laminated material, the appearance is more attractive and fine, and the multi-metal laminated material has wide industrial application prospect in the whole.
Drawings
FIG. 1 is a flow chart of a process for preparing a novel superconducting high-purity aluminum-based multi-metal laminate according to the present invention.
Description of the embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, based on the embodiments of the present invention are within the scope of the present invention, and are specifically described below in connection with the embodiments.
Examples
As shown in fig. 1, a novel superconducting high-purity aluminum-based multi-metal laminate material is composed of high-purity aluminum base, copper alloy and cerium group elements in trace light rare earth elements, and comprises the following components in parts by weight: 10-30% of copper alloy, 70-90% of high-purity aluminum base and cerium group elements; the weight ratio of each element in the high-purity aluminum base and cerium group elements is as follows: the content of aluminum in the high-purity aluminum base is 99.75-99.94%, and the content of cerium element is 0.015-0.05%; the high-purity aluminum base is high-purity aluminum with the aluminum content accounting for 99.99 percent, and the copper alloy is T2 red copper.
A process for preparing a novel superconductive high-purity aluminum-based multi-metal laminated material, which comprises the following steps:
s1: alloy proportioning smelting: placing a high-purity aluminum base in a smelting furnace, controlling the temperature in the smelting furnace to gradually rise from 650 ℃ to 800 ℃, and adding cerium group elements three times in the heating process, wherein the method specifically comprises the following steps: adding 80% of cerium group elements at 700-750 ℃, raising the temperature to 780 ℃ after 40min, adding 10% of cerium group elements, taking a small amount of samples after 30min to analyze alloy components, adjusting and adding the rest cerium group elements at 800 ℃ according to analysis results to ensure that the aluminum content of the high-purity aluminum base is 99.75-99.94%, the cerium group elements content is 0.015-0.05%, and when the content of each element meets the requirement, the aluminum content of the high-purity aluminum base is 99.80%, the cerium group elements content is 0.025%, introducing the mixture into a standing furnace by using a diversion trench, keeping the temperature of the standing furnace at 650-700 ℃, and standing for 30-60min to obtain liquid alloy liquid;
s2: hot rolling lamination: the liquid alloy liquid is led into a degassing and filtering box by using a diversion trench, and the weight ratio is as follows according to the application requirement of the product: 80% of liquid alloy liquid and 20% of T2 red copper, wherein the T2 red copper is in the form of a copper strip, the quality of the copper strip is obtained by calculating according to the weight of the liquid alloy liquid, the copper strip and the liquid alloy liquid are laminated by a hot rolling laminating machine at 600-650 ℃, and a blank is formed by hot rolling;
s3: first cold rolling: cooling the blank obtained in the step S2 to room temperature, performing first cold rolling treatment, controlling the rolling speed to 300m/min and the uncoiling tension to 15N/mm 2 The winding tension was 15N/mm 2 The thickness is 0.6mm, and a cold-rolled blank is obtained;
s4: the internal stress is released by first intermediate heating: placing the cold-rolled blank obtained in the step S3 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to 100 ℃ and carrying out nitrogen replacement for 1h, then heating to 300 ℃, wherein the heating time is 3h, the heat preservation time is 2h, and discharging the blank after the material temperature is 60 ℃ to obtain the blank subjected to the primary heating internal stress treatment;
s5: secondary cold rolling: cooling the blank obtained in the step S4 to room temperature, performing secondary cold rolling treatment, controlling the rolling speed to 400m/min and the uncoiling tension to 25N/mm 2 The winding tension was 32N/mm 2 The thickness is 0.4mm, and a cold-rolled blank is obtained;
s6: the internal stress is released by secondary intermediate heating: placing the cold-rolled blank obtained in the step S5 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to 100 ℃ and carrying out nitrogen replacement for 1h, then heating to 300 ℃, wherein the heating time is 3h, the heat preservation time is 2h, and discharging the cold-rolled blank when the material temperature is 60 ℃ to obtain a blank subjected to secondary heating and internal stress relief treatment;
s7: foil rolling: foil rolling the blank obtained in the step S6, adopting rolling without roll gaps, controlling the rolling speed to be 800m/min, and uncoiling the blank to be 45N/mm 2 The winding tension was 50N/mm 2 The thickness is 0.038mm, the width of the multi-metal composite material is 1250mm, the multi-metal composite material is obtained, and the formula adopted in the thickness calculation is as follows: sample thickness = sample weight/(density/(area), sample weight 0.106g was selected, area 1 square meter, 10% of red copper in this example T2, sample density 2.8kg/m calculated from the content ratio of each component, and sample thickness 0.038mm was calculated;
s8: cutting: cutting the multi-metal composite material at the cutting speed of 400m/min, adjusting the position and angle of a cutting knife according to the specification of the product, cutting to corresponding specifications, and finally checking the size and the surface of the product obtained by cutting, and packaging after the checking is completed.
The preparation process flow of the embodiment is simple, the prepared multi-metal laminated material consists of high-purity aluminum base, T2 red copper and cerium group elements, the final processing thickness can reach 0.05mm through the addition of the cerium group elements, the surface is not easy to crack, the thickness is greatly reduced, the quality of the laminated material is improved, no rolling lines are generated on the surface of the multi-metal laminated material, the appearance is more attractive and fine, the surface resistivity of the multi-metal laminated material is between 0.0175 and 0.0189 through detection of different positions, and compared with the prepared composite material in the prior art, the resistivity of the multi-metal laminated material is effectively reduced from 0.023 to 0.028Ω m.
Examples
As shown in fig. 1, a novel superconducting high-purity aluminum-based multi-metal laminate material is composed of high-purity aluminum base, copper alloy and cerium group elements in trace light rare earth elements, and comprises the following components in parts by weight: 10-30% of copper alloy, 70-90% of high-purity aluminum base and cerium group elements; the weight ratio of each element in the high-purity aluminum base and cerium group elements is as follows: the content of aluminum in the high-purity aluminum base is 99.75-99.94%, and the content of cerium element is 0.015-0.05%; the high-purity aluminum base is high-purity aluminum with the aluminum content accounting for 99.99 percent, and the copper alloy is T2 red copper.
A process for preparing a novel superconductive high-purity aluminum-based multi-metal laminated material, which comprises the following steps:
s1: alloy proportioning smelting: placing a high-purity aluminum base in a smelting furnace, controlling the temperature in the smelting furnace to gradually rise from 650 ℃ to 800 ℃, and adding cerium group elements three times in the heating process, wherein the method specifically comprises the following steps: adding 80% of cerium group elements at 700-750 ℃, raising the temperature to 780 ℃ after 40min, adding 10% of cerium group elements, taking a small amount of samples after 30min to analyze alloy components, adjusting and adding the rest cerium group elements at 800 ℃ according to analysis results to ensure that the aluminum content of the high-purity aluminum base is 99.75-99.94%, the cerium group elements content is 0.015-0.05%, and when the content of each element meets the requirement, introducing the high-purity aluminum base into a standing furnace by using a diversion trench, keeping the temperature of the standing furnace at 700-750 ℃ and standing for 30-60min to obtain liquid alloy liquid;
s2: hot rolling lamination: the liquid alloy liquid is led into a degassing and filtering box by using a diversion trench, and the weight ratio is as follows according to the application requirement of the product: 90% of liquid alloy liquid and 10% of T2 red copper, wherein the T2 red copper is in the form of a copper strip, the quality of the copper strip is obtained by calculating according to the weight of the liquid alloy liquid, the copper strip and the liquid alloy liquid are laminated by a hot rolling laminating machine at 600-650 ℃, and a blank is formed by hot rolling;
s3: first cold rolling: cooling the blank obtained in the step S2 to room temperature, performing first cold rolling treatment, controlling the rolling speed to 400m/min and the uncoiling tension to 20N/mm 2 The winding tension was 25N/mm 2 The thickness is 0.8mm, and a cold-rolled blank is obtained;
s4: the internal stress is released by first intermediate heating: placing the cold-rolled blank obtained in the step S3 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to 120 ℃ and carrying out nitrogen replacement for 1h, then heating to 350 ℃, wherein the heating time is 5h, the heat preservation time is 3h, and discharging the blank after the material temperature is up to 60 ℃ to obtain the blank subjected to the primary heating internal stress treatment;
s5: secondary cold rolling: cooling the blank obtained in the step S4 to room temperature, performing secondary cold rolling treatment, controlling the rolling speed to be 600m/min and the uncoiling tension to be 30N/mm 2 The winding tension was 34N/mm 2 The thickness is 0.2mm, and a cold-rolled blank is obtained;
s6: the internal stress is released by secondary intermediate heating: placing the cold-rolled blank obtained in the step S5 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to 120 ℃ and carrying out nitrogen replacement for 1h, then heating to 350 ℃, wherein the heating time is 5h, the heat preservation time is 3h, and discharging the blank after the material temperature is 60 ℃ to obtain the blank subjected to secondary heating to release internal stress treatment;
s7: foil rolling: foil rolling the blank obtained in the step S6, adopting seamless rolling, controlling the rolling speed to be 900m/min and the uncoiling tension to be 55N/mm 2 The winding tension was 60N/mm 2 The thickness is 0.035mm, the width of the multi-metal composite material is 1250mm, the multi-metal composite material is obtained, and the formula adopted in the thickness calculation is as follows: sample preparationThickness = sample weight/density/area, sample weight 0.116g was selected, area 1 square meter, 30% of red copper in this example T2, sample density 3.3kg/m calculated from the content ratio of each component, thickness 0.035mm calculated;
s8: cutting: cutting the multi-metal composite material at the cutting speed of 500m/min, adjusting the position and angle of a cutting knife according to the specification of the product, cutting to corresponding specifications, and finally checking the size and the surface of the product obtained by cutting, and packaging after the checking is completed.
The preparation process flow of the embodiment is simple, the prepared multi-metal laminated material consists of high-purity aluminum base, T2 red copper and cerium group elements, the final processing thickness can reach 0.035mm through the addition of the cerium group elements, the surface is not easy to crack, the thickness is greatly reduced, the quality of the laminated material is improved, no rolling lines are generated on the surface of the multi-metal laminated material, the number of pinholes on the surface is less than or equal to 15 per inch through observation by a microscope, the appearance is more attractive and fine, the surface resistivity of the multi-metal laminated material is between 0.0172 and 0.0185 omega m through detection on different positions for many times, and compared with the resistivity of the prepared composite material in the prior art, the resistivity of the multi-metal laminated material is between 0.023 and 0.028 omega m.
Comparison of the thicknesses and surface resistivities of the multi-metal composites prepared in examples 1 and 2 and the copper-aluminum composites of the prior art are shown in Table 1:
TABLE 1
| Thickness/mm | Surface resistivity/OMEGA.m | |
| Copper-aluminum composite material | 0.400 | 0.023-0.028 |
| The multimetal composite material obtained in example 1 | 0.038 | 0.0175-0.0189 |
| Example 2 Multi-Metal composite Material | 0.035 | 0.0172-0.0185 |
As can be seen from Table 1, the thicknesses and surface resistivities of the multi-metal composite materials prepared in examples 1 and 2 are greatly reduced compared with the existing copper-aluminum composite materials, and the multi-metal composite material has a wide industrial application prospect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The preparation process of the novel superconductive high-purity aluminum-based multi-metal laminated material comprises the novel superconductive high-purity aluminum-based multi-metal laminated material and is characterized in that: the novel superconductive high-purity aluminum-based multi-metal laminated material consists of high-purity aluminum base, copper alloy and cerium group elements in trace light rare earth elements, and the weight ratio of the novel superconductive high-purity aluminum-based multi-metal laminated material is as follows: 10-30% of copper alloy, 70-90% of high-purity aluminum base and cerium group elements; the weight ratio of each element in the high-purity aluminum base and cerium group elements is as follows: the content of aluminum in the high-purity aluminum base is 99.75-99.94%, the content of cerium group element is 0.015-0.05%, and the copper alloy is T2 red copper;
the preparation process of the novel superconductive high-purity aluminum-based multi-metal laminated material comprises the following steps:
s1: alloy proportioning smelting: placing a high-purity aluminum base in a smelting furnace, controlling the temperature in the smelting furnace to gradually rise from 650 ℃ to 800 ℃, adding cerium group elements three times in the heating process, introducing the cerium group elements into a standing furnace by using a diversion trench when the content of each element meets the requirement, keeping the temperature of the standing furnace between 630 ℃ and 770 ℃, and standing for 30-60min to obtain liquid alloy liquid;
s2: hot rolling lamination: the liquid alloy liquid is led into a degassing and filtering box by using a diversion trench, and the weight ratio is as follows according to the application requirement of the product: 70-90% of liquid alloy liquid and 10-30% of copper alloy, wherein the copper alloy is in the form of a copper strip, the quality of the copper strip is calculated according to the weight of the liquid alloy liquid, the copper strip and the liquid alloy liquid are laminated by a hot rolling laminating machine at 600-650 ℃ and hot-rolled into a blank;
s3: first cold rolling: cooling the blank obtained in the step S2 to room temperature, performing first cold rolling treatment, controlling the rolling speed to 300-500m/min and the uncoiling tension to 10-25N/mm 2 The coiling tension is 12-30N/mm 2 The thickness is between 0.6 and 1mm, and a cold-rolled blank is obtained;
s4: the internal stress is released by first intermediate heating: placing the cold-rolled blank obtained in the step S3 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to a temperature of between 100 and 120 ℃ and carrying out nitrogen replacement for 1h, heating to 300 to 350 ℃, heating for 2 to 6h, and keeping the temperature for 2 to 4h, and discharging the blank after the material temperature is reduced to 60 ℃ to obtain the blank subjected to the first heating internal stress treatment;
s5: secondary cold rolling: cooling the blank obtained in the step S4 to room temperature, performing secondary cold rolling treatment, controlling the rolling speed to be 400-600m/min and the uncoiling tension to be 25-31N/mm 2 The coiling tension is 32-34N/mm 2 The thickness is between 0.1 and 0.6mm, and a cold-rolled blank is obtained;
s6: the internal stress is released by secondary intermediate heating: placing the cold-rolled blank obtained in the step S5 in a heating furnace in a vacuum state and under the protection of nitrogen, heating the heating furnace to a temperature of between 100 and 120 ℃ and carrying out nitrogen replacement for 1h, heating to 300 to 350 ℃, heating for 2 to 6h, and keeping the temperature for 2 to 4h, and discharging the blank after the material temperature is reduced to 60 ℃ to obtain a blank subjected to secondary heating and internal stress relief treatment;
s7: foil rolling: foil rolling the blank obtained in the step S6, adopting seamless rolling, controlling the rolling speed to be 800-900m/min and the uncoiling tension to be 40-60N/mm 2 The coiling tension is 50-60N/mm 2 The thickness is between 0.035 and 0.1mm, and the multi-metal composite material is obtained;
s8: cutting: cutting the multi-metal composite material at the cutting speed of 400-500m/min, and adjusting the position and angle of a cutting knife according to the specification of a product to cut the multi-metal composite material to the corresponding specification.
2. The process for preparing a novel superconducting high-purity aluminum-based multi-metal laminate according to claim 1, wherein in the step S1, cerium group elements are added three times during the heating process, specifically: adding 80% of cerium group elements at 700-750 ℃, raising the temperature to 780 ℃ after 40min, adding 10% of cerium group elements, taking a small amount of samples after 30min to analyze alloy components, and adjusting and adding the rest cerium group elements at 800 ℃ according to analysis results so as to enable the content of each element to meet the requirements.
3. The process for preparing a novel superconducting high-purity aluminum-based multi-metal laminate according to claim 1, wherein the process comprises the following steps: in the step S7, the width of the prepared multi-metal composite material is 500-1250mm during foil rolling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210000857.8A CN114260433B (en) | 2022-01-04 | 2022-01-04 | Preparation process of novel superconductive high-purity aluminum-based multi-metal laminated material |
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| CN202210000857.8A CN114260433B (en) | 2022-01-04 | 2022-01-04 | Preparation process of novel superconductive high-purity aluminum-based multi-metal laminated material |
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| CN114260433A CN114260433A (en) | 2022-04-01 |
| CN114260433B true CN114260433B (en) | 2024-04-02 |
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