CN111589866B - Manufacturing method of aluminum alloy base material for outer gear sleeve of automobile coupler - Google Patents
Manufacturing method of aluminum alloy base material for outer gear sleeve of automobile coupler Download PDFInfo
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- CN111589866B CN111589866B CN202010578426.0A CN202010578426A CN111589866B CN 111589866 B CN111589866 B CN 111589866B CN 202010578426 A CN202010578426 A CN 202010578426A CN 111589866 B CN111589866 B CN 111589866B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 73
- 238000000137 annealing Methods 0.000 claims abstract description 30
- 238000005098 hot rolling Methods 0.000 claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 6
- 238000003754 machining Methods 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000005482 strain hardening Methods 0.000 abstract description 5
- 238000004080 punching Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001953 recrystallisation Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- 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
- B21B1/463—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 continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/56—Elongation control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- 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
- C22F1/047—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 of alloys with magnesium as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/10—Compression, e.g. longitudinal compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2275/00—Mill drive parameters
- B21B2275/02—Speed
- B21B2275/04—Roll speed
Abstract
The invention relates to a method for manufacturing an aluminum alloy base material for an outer gear sleeve of an automobile coupler, which comprises the following steps: step 1) preparing an aluminum alloy ingot: casting an aluminum alloy ingot with the thickness of 580mm or 600mm, and rolling by adopting a 1+1 hot rolling unit in the step 2), and carrying out hot rough rolling: hot rough rolling the aluminum alloy ingot prepared in the step 1) into a rough rolling blank of 19.0mm or 20.0 mm; step 3), hot finish rolling: carrying out one-pass hot finish rolling on the rough rolling blank prepared in the step 2) to obtain a finish rolling blank with the thickness of 10.0mm, and annealing in the step 4): continuously annealing the finish rolling blank prepared in the step 3) to prepare a finished coiled material; according to the invention, by controlling the hot rolling deformation parameters and adopting high-temperature rapid continuous annealing on the finished product, the 5052 aluminum alloy medium-thickness O-shaped plate with the yield ratio of less than or equal to 0.4, the strain hardening index of more than or equal to 0.30, the elongation after fracture of more than 34% and the material grain of less than or equal to 100 mu m can be produced, and the problems that the 5052 medium-thickness O-shaped plate produced by a common process is easy to crack during punching and has rough appearance/poor quality after punching forming are solved.
Description
Technical Field
The invention belongs to the technical field of metal material manufacturing, and particularly relates to a method for manufacturing an aluminum alloy base material for an outer gear sleeve of an automobile coupler.
Background
The 5052 aluminum alloy is applied to an Al-Mg system, the mass content of Mg is 2.2-2.8%, the aluminum alloy has the characteristics of light weight, moderate strength, good corrosion resistance and weldability, easy processing and forming and the like, and is widely applied to various fields of aerospace, transportation, IT industry, building decoration and packaging and the like. The 5052 aluminum alloy is mainly produced in a hot rolling mode or a casting and rolling mode. However, 5052 medium-thickness O-shaped plates prepared by a conventional processing technology are prone to cracking during stamping, the formed 5052 medium-thickness O-shaped plates are poor in stamping effect and poor in appearance quality after stamping, and the 5052 medium-thickness O-shaped plates are prone to cracking caused by diameter shrinkage when processed into outer gear sleeves of automobile gearbox couplings.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for manufacturing an aluminum alloy base material for an automobile gearbox outer gear sleeve, which can produce a 5052 aluminum alloy O-state material with the thickness of 10.0mm for the automobile gearbox outer gear sleeve with good comprehensive stamping effect and fine and smooth stamped surface by controlling hot rolling deformation parameters and adopting high-temperature rapid continuous annealing for a finished product.
The technical scheme of the invention is as follows:
the manufacturing method of the aluminum alloy base material for the outer gear sleeve of the automobile coupler comprises the following steps:
step 1) preparing an aluminum alloy ingot: smelting and casting an aluminum alloy ingot with the thickness of 580mm or 600mm, wherein the chemical components in the aluminum alloy ingot are the same as those of a common 5052 aluminum alloy;
step 2), rolling by adopting a 1+1 hot rolling unit, and hot rough rolling: hot rough rolling the aluminum alloy ingot prepared in the step 1) into a rough rolling blank of 19.0mm or 22.0 mm;
step 3), hot finish rolling: carrying out one-pass hot finish rolling on the rough rolling blank prepared in the step 2) to obtain a finish rolling blank with the thickness of 10.0mm, wherein the hot finish rolling processing rate is 47.36-50%, and the finish rolling temperature is 330-360 ℃;
step 4), annealing: and 3) continuously annealing the finish rolling blank prepared in the step 3) to prepare a finished product coil with the thickness of 10.0mm, wherein the annealing temperature is set to be 450-470 ℃, and the heat preservation time is 5-10 minutes.
Furthermore, in the step 2), the hot rough rolling pass is 15 or 17 passes, and the pass average reduction is 33.0mm-39.0 mm.
Further, in the step 3), the rolling speed of the finish hot rolling is 120 m/min to 150 m/min.
Further, in step 4), the finish-rolled billet produced in step 3) is cooled to 45 ℃ or lower, and then annealed in a continuous annealing line.
Further, the thickness of the aluminum alloy ingot prepared in the step 1) is 580.0 mm; in the step 2), 17 passes of hot rough rolling and the pass average reduction are 33.0mm, and the hot finish rolling transfer thickness is 19.0 mm; in the step 3), hot finish rolling is carried out for one time to the thickness of a finished coiled material, the machining rate of the hot finish rolling is 47.37%, and the finishing temperature is 330-360 ℃; in the step 4), the temperature of the continuous annealing is set to be 450-470 ℃, and the holding time is 5-10 minutes.
Further, the thickness of the aluminum alloy ingot prepared in the step 1) is 600.0 mm; in the step 2), 15 passes of hot rough rolling are carried out, the pass average reduction is 38.0mm-39.0mm, and the hot finish rolling transfer thickness is 20.0 mm; in the step 3), hot finish rolling is carried out for one time until the thickness of a finished coiled material is reached, the hot finish rolling processing rate is 50%, and the finishing temperature is 330-360 ℃; in the step 4), the temperature of the continuous annealing is set to be 450-470 ℃, and the holding time is 5-10 minutes.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, by controlling the hot rolling deformation parameters and adopting high-temperature rapid continuous annealing on the finished product, the problems that 5052 medium-thickness O-shaped plates produced by a common process are easy to crack during stamping and have rough appearance/poor quality after stamping forming are solved; according to the invention, firstly, a high strain rate is adopted in the hot rolling process to match with a high hot rolling finishing temperature, so that the 5052 aluminum alloy material is fully and dynamically recrystallized, thereby obtaining a good internal grain structure, and then the 5052 aluminum alloy material is rapidly recrystallized in a short time by carrying out continuous rapid heat treatment annealing on a hot rolled blank with the thickness of 10.0mm, so that the 5052 aluminum alloy material grains are effectively refined, and high grain size and good stamping forming characteristics are realized; the manufacturing method overcomes the defects that the 5052 material produced by the common process is easy to crack in stamping, uneven grain structure and poor surface after forming, improves the deep drawing performance of the 5052 aluminum alloy medium-thickness O-state plate, and reduces the cracking tendency caused by radial shrinkage when the produced 5052 aluminum alloy medium-thickness O-state plate is deeply drawn/spun into the automobile gearbox coupling outer gear sleeve;
the finished product of the 5052 aluminum alloy medium-thickness O-state plate prepared by the manufacturing method has the material yield ratio of less than or equal to 0.4, the strain hardening index of more than or equal to 0.30, the elongation percentage after fracture of more than 34 percent, the material grain of less than or equal to 100 mu m, good comprehensive stamping effect and fine and smooth surface after stamping forming, and can be used as a stamping/spinning material with the thickness of 10.0mm for the outer gear sleeve of the automobile gear box coupling.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The manufacturing method of the aluminum alloy base material for the outer gear sleeve of the automobile coupler comprises the following steps:
step 1) preparing an aluminum alloy ingot: smelting and casting an aluminum alloy ingot with the thickness of 580mm or 600mm, wherein the chemical components in the aluminum alloy ingot are the same as those of a common 5052 aluminum alloy;
step 2), rolling by adopting a 1+1 hot rolling unit, and hot rough rolling: carrying out 15 or 17-pass hot rough rolling on the aluminum alloy cast ingot prepared in the step 1) to obtain a rough rolling blank, wherein the pass average reduction is 33.0-39.0 mm, and the hot finish rolling transfer thickness is 19.0mm or 22.0 mm;
step 3), hot finish rolling: carrying out one-pass hot finish rolling on the rough rolling blank prepared in the step 2) to obtain a finish rolling blank with the thickness of 10.0mm, wherein the hot finish rolling processing rate is 47.36-50%, and the finish rolling temperature is 330-360 ℃;
step 4), annealing: continuously annealing the finish rolling blank prepared in the step 3) to prepare a finished product coiled material with the thickness of 10.0mm, wherein the annealing temperature is set to be 450-470 ℃, and the heat preservation time is 5-10 minutes; it should be noted that the 5052 aluminum alloy raw material components used in the invention only meet the 5052 aluminum alloy national standard, and the casting and soaking of the aluminum alloy ingot are normal processes.
Further, in the step 3), the rolling speed of the finish hot rolling is 120 m/min to 150 m/min.
Further, in step 4), the finish-rolled billet produced in step 3) is cooled to 45 ℃ or lower, and then annealed in a continuous annealing line.
In the embodiment, a 1+1 hot rolling unit is adopted, and the problems of poor stamping effect of a common 5052 medium-thickness O-shaped plate and poor appearance quality after stamping forming are solved by controlling hot rolling deformation parameters and adopting high-temperature rapid continuous annealing for a finished product; during the rolling in the hot rolling process, a high strain rate is adopted to be matched with a high hot rolling finishing temperature, so that the material is fully and dynamically recrystallized, and a good internal grain structure is obtained; the continuous rapid heat treatment annealing is carried out on the hot-rolled blank with the thickness of 10.0mm, so that the material is rapidly recrystallized in a short time, the material grains are effectively refined, and the high grain size and the good stamping forming characteristic are realized; the yield ratio of the finished 5052 medium-thickness O-state plate material prepared by the embodiment is less than or equal to 0.4, the strain hardening index is greater than or equal to 0.30, the elongation percentage after breakage is more than 34%, and the material grain is less than or equal to 100 microns, so that the 5052 aluminum alloy high-forming stamping/spinning material with the thickness of 10.0mm for the outer gear sleeve of the automobile gearbox coupling can be applied, the comprehensive stamping effect is good, the surface is fine after stamping forming, and the defects that the common 5052 material is easy to crack after stamping, and the grain structure is uneven and the surface is poor after forming are overcome.
Example 2
This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.
In the embodiment, the thickness of the aluminum alloy ingot prepared in the step 1) is 580.0 mm; in the step 2), 17 passes of hot rough rolling and the pass average reduction are 33.0mm, and the hot finish rolling transfer thickness is 19.0 mm; in the step 3), hot finish rolling is carried out for one time to the thickness of a finished coiled material, the machining rate of the hot finish rolling is 47.36%, and the finishing temperature is 330-360 ℃; in the step 4), the temperature of the continuous annealing is set to be 450-470 ℃, and the holding time is 5-10 minutes.
In the hot rolling process, when the deformation reaches the critical strain of dynamic recrystallization, the material can be dynamically recrystallized, the critical strain of dynamic recrystallization is related to the deformation temperature and the strain rate, and the main factor influencing the strain rate is the pass processing rate, in the embodiment, the material is subjected to hot finish rolling in one pass until the thickness of a finished product is reached, and meanwhile, the material is subjected to full dynamic recrystallization in the hot rolling process by adopting the single-pass 50 percent super-large processing rate and the larger final rolling temperature, so that a hot rolled blank with high grain size is obtained; and then obtaining a finished product coiled material through continuous annealing, wherein on one hand, the grain size of the hot-rolled blank after continuous annealing can reach below 100 mu m, on the other hand, the yield ratio of the hot-rolled blank after high-temperature rapid annealing is reduced to below 0.4, the strain hardening index of the material can reach 0.33-0.38, and the elongation after fracture reaches above 34%, so that the deep drawing performance of the 5052 aluminum alloy medium-thickness O-shaped plate is greatly improved, and the cracking tendency caused by diameter shrinkage when the 5052 aluminum alloy medium-thickness O-shaped plate is deeply drawn/spun into the automobile gearbox coupling outer gear sleeve is reduced.
Example 3
This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.
In the embodiment, the thickness of the aluminum alloy ingot prepared in the step 1) is 600.0 mm; in the step 2), 15 passes of hot rough rolling are carried out, the pass average reduction is 38.0mm-39.0mm, and the hot finish rolling transfer thickness is 20.0 mm; in the step 3), hot finish rolling is carried out for one time until the thickness of a finished coiled material is reached, the machining rate of the hot finish rolling is 50%, and the finishing temperature is 330-360 ℃; in the step 4), the temperature of the continuous annealing is set to be 450-470 ℃, and the holding time is 5-10 minutes.
In the embodiment, the hot finish rolling is carried out for one pass until the thickness of a finished product is reached, and meanwhile, the single-pass 50% extra-large processing rate and the larger finish rolling temperature are adopted, so that the material can obtain sufficient dynamic recrystallization in the hot rolling process, and a hot rolled blank with high grain size is obtained; and then obtaining a finished product coiled material through continuous annealing, wherein on one hand, the grain size of the hot-rolled blank after continuous annealing can reach below 100 mu m, on the other hand, the yield ratio of the hot-rolled blank after high-temperature rapid annealing is reduced to below 0.4, the strain hardening index of the material can reach 0.34-0.38, and the elongation after fracture reaches above 34%, so that the deep drawing performance of the 5052 aluminum alloy medium-thickness O-shaped plate is greatly improved, and the cracking tendency caused by diameter shrinkage when the 5052 aluminum alloy medium-thickness O-shaped plate is deeply drawn/spun into the automobile gearbox coupling outer gear sleeve is reduced.
The finished product performance of the finished coiled materials prepared in the embodiment 2 and the embodiment 3 of the invention is as follows:
although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (1)
1. The manufacturing method of the aluminum alloy base material for the outer gear sleeve of the automobile coupler is characterized by comprising the following steps of:
step 1) preparing an aluminum alloy ingot: smelting and casting an aluminum alloy ingot with the thickness of 580mm or 600mm, wherein the chemical components in the aluminum alloy ingot are the same as those of a common 5052 aluminum alloy;
step 2), rolling by adopting a 1+1 hot rolling unit, and hot rough rolling: hot rough rolling the aluminum alloy ingot prepared in the step 1) into a rough rolling blank of 19.0mm or 20.0 mm; wherein the hot rough rolling passes are 15 or 17 passes, and the average rolling reduction of the passes is 33.0mm-39.0 mm;
step 3), hot finish rolling: carrying out one-pass hot finish rolling on the rough rolling blank prepared in the step 2) to obtain a finish rolling blank with the thickness of 10.0mm, wherein the finish rolling machining rate is 47.36-50%, the finish rolling temperature is 330-360 ℃, and the rolling speed of the hot finish rolling is 120-150 m/min;
step 4), annealing: cooling the finish rolling blank prepared in the step 3) to below 45 ℃, and then continuously annealing the finish rolling blank on a continuous annealing line to prepare a finished product coil with the thickness of 10.0mm, wherein the annealing temperature is set to be 450-470 ℃, and the heat preservation time is 5-10 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010578426.0A CN111589866B (en) | 2020-06-23 | 2020-06-23 | Manufacturing method of aluminum alloy base material for outer gear sleeve of automobile coupler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010578426.0A CN111589866B (en) | 2020-06-23 | 2020-06-23 | Manufacturing method of aluminum alloy base material for outer gear sleeve of automobile coupler |
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| CN111589866B true CN111589866B (en) | 2022-08-09 |
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| JP4078254B2 (en) * | 2003-06-16 | 2008-04-23 | 古河スカイ株式会社 | Method for producing aluminum alloy plate for glittering wheel rim |
| JP2007182628A (en) * | 2006-12-25 | 2007-07-19 | Kobe Steel Ltd | Aluminum alloy sheet and method of producing the same |
| TWI550093B (en) * | 2014-08-08 | 2016-09-21 | 中國鋼鐵股份有限公司 | High surface quality aluminum alloy sheet and fabricating method thereof |
| CN105177327A (en) * | 2015-09-11 | 2015-12-23 | 广西南南铝加工有限公司 | Preparation method for high-magnesium aluminum alloy O-state plate of 5XXX series |
| JP6792618B2 (en) * | 2015-12-18 | 2020-11-25 | ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． | High-strength 6XXX aluminum alloy and its manufacturing method |
| CN107557625B (en) * | 2017-08-29 | 2019-03-26 | 河南明泰科技发展有限公司 | A kind of new-energy automobile high tenacity Aluminum Plate and Strip and its production method |
| CN109988948B (en) * | 2019-04-26 | 2021-05-18 | 郑州明泰实业有限公司 | 5182-O state aluminum alloy plate for automobile inner plate and production method thereof |
| CN111254330A (en) * | 2020-03-03 | 2020-06-09 | 中铝瑞闽股份有限公司 | Aluminum alloy strip for computer bracket and preparation method thereof |
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