CN113862522A - 3003 single zero foil blank and manufacturing method thereof - Google Patents
3003 single zero foil blank and manufacturing method thereof Download PDFInfo
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- CN113862522A CN113862522A CN202111106782.3A CN202111106782A CN113862522A CN 113862522 A CN113862522 A CN 113862522A CN 202111106782 A CN202111106782 A CN 202111106782A CN 113862522 A CN113862522 A CN 113862522A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000011888 foil Substances 0.000 title claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 50
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000007872 degassing Methods 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000779 smoke Substances 0.000 claims abstract description 21
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 238000003723 Smelting Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007670 refining Methods 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- -1 aluminum-titanium-boron Chemical compound 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/119—Refining the metal by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
- B22D45/005—Evacuation of fumes, dust or waste gases during manipulations in the foundry
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a 3003 single-zero foil blank and a manufacturing method thereof, wherein the 3003 single-zero foil blank comprises the following components by mass percent of 0.2-0.4% of Si, 0.4-0.7% of Fe, 0.03-0.05% of Cu, 1.0-1.2% of Mn, less than or equal to 0.05% of Zn, 0.02-0.05% of Ti and the balance of Al, and the manufacturing steps comprise (1) smelting, (2) component adjustment, (3) a guide furnace, (4) degassing, (5) deslagging, (6) cooling forming, (7) inspection, (8) smoke and dust removal, and the 3003 single-zero foil blank produced by the invention has good mechanical properties such as tensile strength, elongation and the like and corrosion resistance; the waste aluminum is reasonably utilized for production, the product process flow is short, the cost is low, the aluminum is repeatedly recycled, the smoke and dust removing step is arranged in the production process flow, the smoke and dust are collected and intensively discharged, and the method is green, environment-friendly, energy-saving and emission-reducing.
Description
Technical Field
The invention relates to the technical field of aluminum alloy preparation processes, in particular to a 3003 single zero foil blank and a manufacturing method thereof.
Background
With the rapid development of the economy of China, the demand for aluminum is rising year by year. The aerospace, transportation, construction, etc. industries all require large amounts of aluminum, most of which come from the electrolytic aluminum industry. However, according to statistics, the existing bauxite in China is quite limited, so that the aluminum processing industry in China is quite dependent on import. In this context, secondary aluminum is produced by re-melting and refining waste aluminum and aluminum alloy materials or aluminum-containing waste materials, and is an important source of metal aluminum. Compared with the original aluminum production, the secondary aluminum production has the advantages of resource protection, energy consumption reduction and the like. Therefore, the method for producing the aluminum alloy product by using the secondary aluminum can solve the energy dilemma of China and also meet the strategic demands of sustainable development of China.
However, most of the secondary aluminum production enterprises in China use aluminum waste to produce products, the mechanical property, the number of pinholes and the corrosion resistance of the aluminum alloy finished products cannot meet the requirements due to nonstandard processes of smelting, casting, rolling and the like, if the number of pinholes of the aluminum foil semi-finished products is large, the aluminum foil semi-finished products are easy to break during rolling or slitting, the rate of finished products, the first-grade product rate and the production rate are reduced, the production cost is increased, and if the number of pinholes of the aluminum foil semi-finished products is large, the aluminum foil finished products are easy to break during compounding. In addition, the aluminum processing industry easily produces waste smoke and waste gas to pollute the environment in the processing process, and the smoke generated in the smelting process can further cause harm to the environment.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a 3003 single-zero foil blank and a manufacturing method thereof, which are specifically shown as follows:
a3003 single-zero foil blank comprises the following alloy components in percentage by mass: 0.2 to 0.4% of Si, 0.4 to 0.7% of Fe, 0.03 to 0.05% of Cu, 1.0 to 1.2% of Mn, not more than 0.05% of Zn, 0.02 to 0.05% of Ti and the balance of Al.
A method of manufacturing a 3003 single zero foil blank, comprising the steps of:
s1, smelting: adding raw materials with the waste aluminum consumption more than 90%, and stirring, standing and slagging off the added waste materials after surfacing;
s2, adjusting components: after standing and slagging-off, firstly adding the intermediate alloy, secondly adding the refining agent, and finally stirring, standing and slagging-off;
s3, guiding the furnace: after the composition of the molten aluminum is detected to be qualified, controlling the temperature of the melt to be a certain temperature, introducing the melt into a holding furnace, refining the molten aluminum in the holding furnace for two times, and then entering the next procedure;
s4, degassing: enabling the molten aluminum refined twice in the heat preservation furnace to enter a degassing box through a flow groove, and introducing inert gas into the degassing box to carry out degassing;
s5, deslagging: degassing the aluminum water by a degassing tank, and then, filtering and removing impurities in a filter tank;
s6, cooling and forming: cooling the qualified molten aluminum into a cast-rolled plate by a cold roller, wherein the cast-rolled plate forming is the last process of the cast rolling, and the process mainly controls the plate thickness, the plate shape, the edge cracking quality and the like;
s7, checking: the surface of the cast-rolled plate blank is clean, has no corrosion, oil stain and crack, and the grain size of acid washing is first grade;
s8, smoke and dust removal: smoke is removed by using the uniform air suction hood, and dust is removed by using dust removing equipment of the smelting furnace.
Preferably, in S1, the stirring and skimming time is not less than 20min, and after the skimming is finished, the dross is not more than 5 × 5 cm.
Preferably, in S2, the master alloy comprises 50% of Cu, 75% of Fe and 95% of Si, wherein Si is instant silicon, the refining agent is West MK4357B, and the dosage of the refining agent is 1.2-1.5kg of the refining agent added to each ton of molten aluminum.
Preferably, in S3, the first refining is started within 10min of guiding the furnace, the refining agent is Western Sheng MK4357B, the dosage is 0.5 +/-0.1 kg of the refining agent added to each ton of molten aluminum, inert gas is introduced into the heat preservation furnace to uniformly spray the refining agent, the temperature of the molten aluminum is controlled to be 720-740 ℃, and the temperature of furnace gas of the heat preservation furnace is controlled to be 730-750 ℃ in the refining process; controlling the rising height of the aluminum liquid to be 10-20 cm, refining time to be more than or equal to 30min, slagging off after standing, and standing time to be more than or equal to 20 min; and after the primary refining in the holding furnace is finished, performing secondary refining within 6 h.
Preferably, the gas flow rate of the inert gas in S4 is 15-20L/min, the rotating speed of the rotor is 480-500 rpm, and the cleaning time interval of the degassing box is 6 h.
Preferably, in S5, the filtration adopts a double-stage filtration mode, the first-stage filter plate is 30ppi, the second-stage filter plate is 40ppi, the temperature of the filter box is controlled to be 690-720 ℃, and the bipolar filtration mode is adopted for filtration, so that the influence of impurities on the product can be reduced. And aluminum-titanium-boron wires are added at the tail end of the degassing box at the adding speed of 13-15 Hz.
Preferably, in S6, the temperature of the front box is 693-697 ℃, the length of the cast rolling area is 52-55 mm, the tolerance of the thickness of the single zero foil is controlled to be 6.7 +/-0.3 mm, the convexity is 0.3-0.8%, and the difference between two sides is less than or equal to 0.03 mm.
Has the advantages that:
(1) the invention adopts high-purity inert gas to remove gas, effectively reduces the number of pinholes of the single zero foil blank, improves the yield and reduces the production cost.
(2) The 3003 single-zero foil blank produced by the method has good mechanical properties such as tensile strength, elongation and the like and corrosion resistance.
(3) The 3003 single-zero foil blank produced by the method reasonably utilizes waste aluminum for production, has short production process flow and low cost, realizes the repeated recycling of aluminum, is provided with a smoke and dust removing step in the production process flow, collects smoke dust, discharges the smoke dust in a centralized manner, and is green, environment-friendly, energy-saving and emission-reducing.
Drawings
Fig. 1 is a schematic view of a 3003 single zero foil blank and a manufacturing process route for its manufacturing method.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
A manufacturing method of a 3003 single zero foil blank comprises the following specific steps:
1. smelting: adding the waste, stirring, standing and slagging off after the added waste is surfaced and leveled, wherein the stirring and slagging off time is 30 min.
2. Adjusting components: after the first standing and slagging-off is finished, adding an intermediate alloy to control the components of molten aluminum, wherein the intermediate alloy is refined by adding 50% of omega (Cu), 75% of omega (Fe) and 95% of omega (Si), and then adding a refining agent (Xisheng W-715-7) for 30min, wherein the amount of the refining agent is 1.0kg per ton of molten aluminum.
3. Guiding the furnace: and after refining, introducing the melt into a heat preservation furnace when the temperature of the melt is 745 ℃, introducing pure nitrogen into the heat preservation furnace to uniformly spray the refining agent, and degassing and deslagging, wherein the dosage of the refining agent is 0.5kg per ton of aluminum. In the refining process, the furnace gas temperature of the holding furnace is set to be 730 ℃, the refining time is 30min, slag is removed after standing, and the standing time is 20 min. And after the first refining of the holding furnace is finished, performing second refining, degassing and deslagging within 6 hours.
4. Degassing: and (3) allowing the aluminum liquid refined twice in the heat preservation furnace to enter a degassing box through a launder, introducing high-purity nitrogen into the degassing box for degassing, wherein the nitrogen flow is 16L/min, the rotor rotation speed is 500rpm, and the temperature of the degassing box is set at 720 ℃.
5. Deslagging: and the aluminum water enters the filter tank for final impurity removal after being degassed by the degassing tank. In order to ensure the quality of the product and reduce the influence of impurities on the product, a two-stage filtration mode is adopted for filtration, the first stage filter is 30 meshes, and the second stage filter is 40 meshes; meanwhile, in order to refine the crystal grains, the adding point of the titanium wire is set at the front end of the filter box, and the adding speed of the titanium wire is 15 Hz.
6. Cooling forming and coiling: and cooling the qualified molten aluminum by a cold roller to form a cast-rolled plate, controlling the temperature of a front box at 695 ℃, controlling the length of a cast-rolling area at 55mm, setting the thickness of the cast-rolled plate to be 6.8mm, and controlling the convexity to be 0.5%.
7. And (4) checking: the blank plate surface is clean, has no corrosion, oil stain and crack, the pickling grain size is the first grade, and the defects of the center layer segregation, corrosion, tropical zone and the like which influence the product quality are strictly forbidden.
8. Smoke and dust removal: in the smelting stage, a uniform air suction hood is adopted, and flue gas can be directly recycled into the furnace; a smoke suction and dust collection device is also arranged in the furnace to prevent smoke dust from overflowing and polluting the environment; each smelting pot is provided with a dust removal device, and the dust removal system of the smelting pot collects the smoke dust, collects the smoke dust through a specific pipeline, performs centralized treatment and discharges the smoke dust, and meets the requirements of environmental protection.
The method can be used for preparing the single zero foil with the thickness of 0.02-0.04 mm, the tensile strength of a finished product is 140-160 Mpa, and the elongation can reach more than 15.0%. The invention uses high-purity inert gas to remove gas, effectively reduces the number of pinholes of the single zero foil blank, improves the yield, reduces the production cost, and has good mechanical properties such as tensile strength, elongation and the like and corrosion resistance. The 3003 single-zero foil blank produced by the method reasonably utilizes waste aluminum for production, has short production process flow and low cost, realizes the repeated recycling of aluminum, is provided with a smoke and dust removing step in the production process flow, collects smoke dust, discharges the smoke dust in a centralized manner, and is green, environment-friendly, energy-saving and emission-reducing.
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. A3003 single-zero foil blank is characterized in that the alloy comprises the following components by mass percent: 0.2 to 0.4% of Si, 0.4 to 0.7% of Fe, 0.03 to 0.05% of Cu, 1.0 to 1.2% of Mn, not more than 0.05% of Zn, 0.02 to 0.05% of Ti and the balance of Al.
2. A method of manufacturing a 3003 single zero foil blank, comprising the steps of:
s1, smelting: adding raw materials with the waste aluminum consumption more than 90%, and stirring, standing and slagging off the added waste materials after surfacing;
s2, adjusting components: after standing and slagging-off, firstly adding the intermediate alloy, secondly adding the refining agent, and finally stirring, standing and slagging-off;
s3, guiding the furnace: after the composition of the molten aluminum is detected to be qualified, controlling the temperature of the melt to be a certain temperature, introducing the melt into a holding furnace, refining the molten aluminum in the holding furnace for two times, and then entering the next procedure;
s4, degassing: enabling the molten aluminum refined twice in the heat preservation furnace to enter a degassing box through a flow groove, and introducing inert gas into the degassing box to carry out degassing;
s5, deslagging: degassing the aluminum water by a degassing tank, and then, filtering and removing impurities in a filter tank;
s6, cooling and forming: cooling the qualified molten aluminum into a cast-rolled plate by a cold roller;
s7, checking: the surface of the cast-rolled plate blank is clean, has no corrosion, oil stain and crack, and the grain size of acid washing is first grade;
s8, smoke and dust removal: smoke is removed by using the uniform air suction hood, and dust is removed by using dust removing equipment of the smelting furnace.
3. The method of claim 2, wherein the stirring and skimming time of S1 is not less than 20min, and the dross is not more than 5 x 5cm after the skimming is finished.
4. The method of claim 2, wherein the master alloy component of S2 comprises 50% Cu, 75% Fe and 95% Si, wherein Si is instant Si, and the refining agent is Western MK4357B, in an amount of 1.2-1.5kg per ton of molten aluminum.
5. The method as claimed in claim 2, wherein in S3, the first refining is started within 10min of the furnace, the refining agent is Western MK4357B, the amount of the refining agent is 0.5 +/-0.1 kg per ton of aluminum water, and the inert gas is introduced into the holding furnace to uniformly spray the refining agent;
in the refining process, the temperature of the molten aluminum is 720-740 ℃, and the temperature of furnace gas of a holding furnace is 730-750 ℃;
controlling the rising height of the aluminum liquid to be 10-20 cm, refining time to be more than or equal to 30min, slagging off after standing, and standing time to be more than or equal to 20 min;
and after the primary refining in the holding furnace is finished, performing secondary refining within 6 h.
6. The method as claimed in claim 2, wherein the inert gas flow rate in S4 is 15-20L/min, the rotation speed of the rotor is 480-500 rpm, and the cleaning time interval of the degassing tank is 6 h.
7. The method for manufacturing a 3003 single zero foil blank according to claim 2, wherein in S5, the filtration is performed in a double-stage filtration mode, the first-stage filtration piece is 30ppi, the second-stage filtration piece is 40ppi, the temperature of the filtration box is 690-720 ℃, aluminum-titanium-boron wires are added at the tail end of the degassing box, and the adding speed is 13-15 Hz.
8. The method of claim 2, wherein in S6, the front box temperature is 693-697 ℃, the length of the cast-rolling zone is 52-55 mm, the tolerance of the thickness of the single zero foil is controlled to 6.7 + -0.3 mm, the convexity is 0.3-0.8%, and the difference between both sides is less than or equal to 0.03 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111106782.3A CN113862522A (en) | 2021-09-22 | 2021-09-22 | 3003 single zero foil blank and manufacturing method thereof |
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| CN202111106782.3A CN113862522A (en) | 2021-09-22 | 2021-09-22 | 3003 single zero foil blank and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114879778A (en) * | 2022-04-19 | 2022-08-09 | 晟通科技集团有限公司 | Aluminum liquid temperature control device and aluminum liquid temperature control method |
| CN115323222A (en) * | 2022-06-22 | 2022-11-11 | 浙江桐昆新材料研究院有限公司 | Aluminum alloy for new energy power battery case and production process |
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| CN113005337A (en) * | 2021-03-17 | 2021-06-22 | 内蒙古联晟新能源材料有限公司 | Method for manufacturing container foil blank |
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2021
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| CN101397622A (en) * | 2008-06-26 | 2009-04-01 | 江苏常铝铝业股份有限公司 | Aluminium alloy foil material for container and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114879778A (en) * | 2022-04-19 | 2022-08-09 | 晟通科技集团有限公司 | Aluminum liquid temperature control device and aluminum liquid temperature control method |
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Application publication date: 20211231 |