CN115254955A - Rolling method of aluminum alloy sheet - Google Patents
Rolling method of aluminum alloy sheet Download PDFInfo
- Publication number
- CN115254955A CN115254955A CN202210487998.7A CN202210487998A CN115254955A CN 115254955 A CN115254955 A CN 115254955A CN 202210487998 A CN202210487998 A CN 202210487998A CN 115254955 A CN115254955 A CN 115254955A
- Authority
- CN
- China
- Prior art keywords
- rolling
- aluminum alloy
- heat preservation
- putting
- rollers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 101
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004321 preservation Methods 0.000 claims abstract description 83
- 239000002994 raw material Substances 0.000 claims abstract description 79
- 238000005098 hot rolling Methods 0.000 claims abstract description 6
- 238000005485 electric heating Methods 0.000 claims description 39
- 230000007547 defect Effects 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001250 2024 aluminium alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000008094 contradictory 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
- 230000007423 decrease Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- 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
- B21B37/58—Roll-force control; Roll-gap 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
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B2001/225—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 plates, strips, bands or sheets of indefinite length by hot-rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a rolling method of an aluminum alloy sheet, which is characterized by comprising the following steps of: s1, taking an aluminum alloy round bar or round ingot as a raw material, and carrying out heat preservation treatment on the raw material; s2, starting a hot rolling mill, and putting the raw materials into a roller for rolling; s3, after the raw materials are subjected to heat preservation treatment continuously, the raw materials are placed into a roller for rolling again; and S4, repeating the step S3 to obtain the aluminum alloy plate. The aluminum alloy plate prepared by the method has the advantages of smooth surface, no defects of cracking and the like, excellent performance, high preparation efficiency of the rolling method, low cost and capability of realizing industrial production, and can be used as an excellent raw material in various related fields.
Description
Technical Field
The invention relates to the technical field of aluminum alloy materials, in particular to a rolling method of an aluminum alloy sheet.
Background
The aluminum alloy has the characteristics of small density, high specific strength and specific stiffness, good elasticity, good impact resistance, corrosion resistance, wear resistance, easy surface coloring, good processing formability, high recycling reproducibility and the like, and is widely applied to the fields of aviation, aerospace, automobiles, machinery manufacturing, ships, buildings, decoration and the like, and the strength of the aluminum alloy is generally between 480 and 500 MPa. With the rapid development of science and technology and industrial economy in recent years, the further improvement of the performance of aluminum alloy materials has become a common concern in the international aluminum industry at present. The implementation of the plan of a large national airplane puts higher requirements on the mechanical properties of high-strength high-toughness anti-fatigue and good-heat-resistance aluminum alloy, so that a novel method for preparing a large-size, high-strength high-toughness heat-resistant aluminum alloy sheet is developed to prepare a high-strength high-toughness heat-resistant aluminum alloy sheet, and the problem to be solved at present is met by meeting the requirements of the aeronautical manufacturing industry on the high-performance heat-resistant aluminum alloy sheet. Compared with the aluminum alloy base plate produced by the traditional die-casting forming and extrusion forming modes, the rolled plate has higher production efficiency, more stable mechanical property and higher plane precision. When the small-size hard aluminum alloy slab ingot is used for producing the ultra-wide aluminum alloy sheet, the production efficiency is low, the spread is insufficient, the production of ultra-wide plates is limited, and the yield is low at the same time.
The Chinese patent with publication number CN106637008 discloses a rolling method of a high-strength aluminum alloy plate, which comprises the following steps: A. homogenizing and annealing the refined aluminum alloy ingot blank at 500-600 ℃; B. controlling the temperature to be 390-410 ℃, carrying out single-pass 15-20% hot rolling pre-deformation after the internal and external temperatures are uniform, continuously controlling the temperature to be 390-410 ℃, then carrying out single-pass 70-80% large reduction rolling deformation to obtain a thick plate blank, and carrying out water cooling or air cooling on the thick plate blank; C. carrying out solid solution treatment for 0.5-2 h at 450-550 ℃, and then carrying out water quenching; D. carrying out pre-aging treatment for 10-15 h at 150-250 ℃, and then air cooling to room temperature; E. performing single-pass 40-60% cold rolling deformation to obtain a plate, and performing final time effect treatment at 150-200 ℃ for 3-5 h. The rolling method solves the problem of dendritic crystal segregation of the plate through annealing treatment, homogenizes the components of the aluminum alloy plate, improves the hardness of the alloy, improves the strength and the service life of the aluminum alloy plate, but has complex annealing treatment operation, is difficult to realize large-scale industrial production, and is easy to crack the aluminum alloy plate in the rolling process.
Disclosure of Invention
The invention aims to provide a rolling method of an aluminum alloy sheet, which is simple, convenient and quick to operate, low in cost, capable of greatly saving time and producing in batches and free of cracking, and the prepared aluminum alloy sheet has a smooth surface.
The purpose of the invention is as follows through the following technical scheme:
a rolling method of an aluminum alloy sheet comprises the following steps:
s1, taking an aluminum alloy round bar or round ingot as a raw material, and carrying out heat preservation treatment on the raw material;
s2, starting a hot rolling mill, and putting the raw materials into a roller for rolling;
s3, after the raw materials are subjected to heat preservation treatment continuously, the raw materials are placed into a roller for rolling again;
and S4, repeating the step S3 to obtain the aluminum alloy plate. Further, the round bar or round ingot material in the step S1 is 2xxx aluminum alloy.
Further, the temperature of the heat preservation treatment in the step S1 is 450-520 ℃.
Further, the temperature of the heat preservation treatment is 470 ℃ or 490 ℃.
Further, the time of the heat preservation treatment in the step S1 is 30-90 min
Further, the time of the heat preservation treatment is 60min.
Further, the heat preservation treatment process is carried out in an electric heating furnace.
Further, the rotating speed of the roller is 200-1000 r/min.
Further, the rotating speed of the roller is 200-600 r/min.
Further, the roll gap between the rolls gradually decreases during rolling.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the matching of the heat preservation treatment and the rolling process, the deformation is increased continuously in the rolling process, the recrystallization degree of the alloy is increased more and more, finer short-axis crystals are obtained, the high toughness of the material is kept, and the aluminum alloy plate is not easy to crack in the rolling process.
The invention simplifies the rolling forming process of the aluminum alloy sheet, has simple operation, saves time and is efficient; the prepared aluminum alloy plate has smooth surface, no defects such as cracking and the like, excellent performance and can be used as an excellent raw material in various related fields. The rolling method of the aluminum alloy plate has high preparation efficiency and low cost, and can realize industrial production.
Drawings
FIG. 1 is a schematic flow diagram of a method for rolling an aluminum alloy sheet;
FIG. 2 is a schematic flow diagram of a method of rolling an aluminum alloy sheet;
FIG. 3 is a metallographic picture of an aluminum alloy sheet after 6 times rolling in example 1;
wherein, 1 is a roller, 2 is a roller way, and 3 is a raw material.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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
As shown in fig. 1, the present embodiment provides a rolling method of an aluminum alloy plate, including the following steps:
s1, taking a 2024 aluminum alloy round bar as a raw material, and carrying out heat preservation treatment on the raw material in an electric heating furnace at the temperature of 490 ℃ for 30min;
s2, starting a hot rolling mill, and putting the raw materials into rollers for rolling, wherein the rotating speed of the rollers is 400r/min, and the roll gap between the rollers is 19.28cm;
s3, putting the raw materials into the electric heating furnace again for heat preservation for 30min, adjusting the roll gap between the rollers to 18.00cm, and putting the raw materials into the rollers for rolling again;
the rolling step is repeated until the aluminum alloy plate reaches the required thickness, specifically, the subsequent rolling process in this embodiment is as follows:
s4, putting the raw materials into the electric heating furnace again for heat preservation for 25min, wherein the heat preservation temperature is 480 ℃, adjusting the roll gap between the rollers to 16.69cm, and putting the rollers into the rollers for rolling again;
s5, putting the raw materials into the electric heating furnace again for heat preservation for 25min, keeping the heat preservation temperature at 480 ℃, adjusting the roll gap between the rollers to 15.22cm, and putting the rollers into the rollers for rolling again;
s6, putting the raw materials into the electric heating furnace again for heat preservation for 20min, controlling the heat preservation temperature to be 480 ℃, adjusting the roll gap between the rollers to be 13.96cm, and putting the rollers into the rollers for rolling again;
s7, putting the raw materials into the electric heating furnace again for heat preservation for 20min, controlling the heat preservation temperature to be 480 ℃, adjusting the roll gap between the rollers to be 12.80cm, and putting the rollers into the rollers for rolling again;
s8, putting the raw materials into the electric heating furnace again for heat preservation for 20min, adjusting the temperature of the heat preservation to 480 ℃, adjusting the roll gap between the rollers to 11.89cm, and putting the rollers into the rollers for rolling again;
s9, putting the raw materials into the electric heating furnace again for heat preservation for 20min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 10.99cm, and putting the rollers into the rollers for rolling again;
s10, putting the raw materials into the electric heating furnace again for heat preservation for 20min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 9.94cm, and putting the rollers into a roller for rolling again;
s11, putting the raw materials into the electric heating furnace again for heat preservation for 15min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 8.97cm, and putting the rollers into the rollers for rolling again;
s12, putting the raw materials into the electric heating furnace again for heat preservation for 15min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 7.97cm, and putting the rollers into the rollers for rolling again;
s13, putting the raw materials into the electric heating furnace again for heat preservation for 10min, adjusting the roll gap between the rollers to 7.01cm, and putting the raw materials into the rollers for rolling again, wherein the heat preservation temperature is 470 ℃;
s14, putting the raw materials into the electric heating furnace again for heat preservation for 10min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 6.06cm, and putting the rollers into the rollers for rolling again;
s15, putting the raw materials into the electric heating furnace again for heat preservation for 8min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to 5.20cm, and putting the raw materials into a roller for rolling again;
s16, putting the raw materials into the electric heating furnace again for heat preservation for 8min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to 4.43cm, and putting the raw materials into a roller for rolling again;
s17, putting the raw materials into the electric heating furnace again for heat preservation for 5min at the temperature of 470 ℃, adjusting the roll gap between the rollers to be 3.55cm, and putting the raw materials into the rollers for rolling again;
s18, putting the raw materials into the electric heating furnace again for heat preservation for 5min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 3.09cm, and putting the rollers into the roller for rolling again;
s19, putting the raw materials into the electric heating furnace again for heat preservation for 5min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to be 2.50cm, and putting the raw materials into a roller for rolling again;
s20, putting the raw materials into the electric heating furnace again for heat preservation for 5min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to be 1.99cm, and putting the raw materials into a roller for rolling again;
s21, putting the raw materials into the electric heating furnace again for heat preservation for 5min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to be 1.67cm, and putting the rollers into the rollers for rolling again; until the aluminum alloy plate reaches the required thickness.
The roll gap during rolling and the actual thickness of the rolled aluminum alloy sheet are shown in table 1.
TABLE 1
The aluminum alloy plate prepared by the embodiment has the advantages of smooth surface, no defects such as cracks and the like and good performance.
As shown in fig. 3, in this embodiment, the grain distribution in the aluminum alloy sheet after 6 passes of rolling exhibits a certain directionality, and after the heat preservation treatment is matched with the rolling process, the deformation is increased continuously in the rolling process, the recrystallization degree of the alloy is increased more and more, and finer short-axis grains are obtained.
The beneficial effects of this embodiment are as follows:
according to the invention, through the matching of the heat preservation treatment and the rolling process, the deformation is increased continuously in the rolling process, the recrystallization degree of the alloy is increased more and more, finer short-axis crystals are obtained, the high toughness of the material is maintained, and the aluminum alloy plate is not easy to crack in the rolling process.
The invention simplifies the rolling forming process of the aluminum alloy sheet, has simple operation, saves time and has high efficiency; the prepared aluminum alloy plate has smooth surface, no defects of cracking and the like, excellent performance and can be used as an excellent raw material in various related fields. The rolling method of the aluminum alloy plate has high preparation efficiency and low cost, and can realize industrial production.
Example 2
As shown in fig. 2, the present embodiment provides a rolling method of an aluminum alloy plate, including the following steps:
s1, taking a 2A12 aluminum alloy round bar as a raw material, and carrying out heat preservation treatment on the raw material in an electric heating furnace at the temperature of 490 ℃ for 90min;
s2, starting a hot rolling mill, and putting the raw materials into rollers for rolling, wherein the rotating speed of the rollers is 200r/min, and the roll gap between the rollers is 22.12cm;
the rolling step is repeated until the aluminum alloy plate reaches the required thickness, specifically, the subsequent rolling process in this embodiment is as follows:
s3, putting the raw materials into the electric heating furnace again for heat preservation for 30min, wherein the heat preservation temperature is 490 ℃, adjusting the roll gap between the rollers to 19.18cm, and putting the raw materials into the rollers for rolling again;
s4, putting the raw materials into the electric heating furnace again for heat preservation for 25min, keeping the heat preservation temperature at 480 ℃, adjusting the roll gap between the rollers to 17.2cm, and putting the rollers into the rollers for rolling again;
s5, putting the raw materials into the electric heating furnace again for heat preservation for 25min, keeping the heat preservation temperature at 480 ℃, adjusting the roll gap between the rollers to 15.37cm, and putting the rollers into the rollers for rolling again;
s6, putting the raw materials into the electric heating furnace again for heat preservation for 20min, keeping the heat preservation temperature at 480 ℃, adjusting the roll gap between the rollers to 13.57cm, and putting the raw materials into the rollers for rolling again;
s7, putting the raw materials into the electric heating furnace again for heat preservation for 20min, controlling the heat preservation temperature to be 480 ℃, adjusting the roll gap between the rollers to be 11.92cm, and putting the rollers into the rollers for rolling again;
s8, putting the raw materials into the electric heating furnace again for heat preservation for 20min, adjusting the roll gap between the rollers to 9.98cm, and putting the raw materials into the rollers for rolling again, wherein the heat preservation temperature is 470 ℃;
s9, putting the raw materials into the electric heating furnace again for heat preservation for 20min, adjusting the roll gap between the rollers to 8.76cm, and putting the raw materials into the rollers for rolling again, wherein the heat preservation temperature is 470 ℃;
s10, putting the raw materials into the electric heating furnace again for heat preservation for 15min at the temperature of 470 ℃, adjusting the roll gap between the rollers to 7.71cm, and putting the raw materials into the rollers for rolling again;
s11, putting the raw materials into the electric heating furnace again for heat preservation for 15min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 6.89cm, and putting the rollers into the rollers for rolling again;
s12, putting the raw materials into the electric heating furnace again for heat preservation for 10min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 5.82cm, and putting the rollers into a roller for rolling again;
s13, putting the raw materials into the electric heating furnace again for heat preservation for 10min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to 5.08cm, and putting the raw materials into a roller for rolling again;
s14, putting the raw materials into the electric heating furnace again for heat preservation for 8min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to 4.02cm, and putting the raw materials into a roller for rolling again;
s15, putting the raw materials into the electric heating furnace again for heat preservation for 8min at the temperature of 470 ℃, adjusting the roll gap between the rollers to be 3.37cm, and putting the raw materials into the rollers for rolling again;
s16, putting the raw materials into the electric heating furnace again for heat preservation for 5min, adjusting the temperature of the heat preservation to 470 ℃, adjusting the roll gap between the rollers to 2.42cm, and putting the raw materials into a roller for rolling again;
s17, putting the raw materials into the electric heating furnace again for heat preservation for 5min, keeping the heat preservation temperature at 470 ℃, adjusting the roll gap between the rollers to 1.71cm, and putting the raw materials into a roller for rolling again;
s18, putting the raw materials into the electric heating furnace again for heat preservation for 5min at the temperature of 470 ℃, adjusting the roll gap between the rollers to be 1.26cm, and putting the raw materials into the rollers for rolling again; until the aluminum alloy plate reaches the required thickness.
The roll gap during rolling and the actual thickness of the rolled aluminum alloy sheet are shown in table 2.
TABLE 2
| Number of rolling passes | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
| Roll gap/cm | 22.12 | 19.18 | 17.2 | 15.37 | 13.57 | 11.92 | 9.98 |
| Actual thickness/cm | 22.92 | 20.08 | 17.62 | 15.84 | 13.92 | 12.31 | 10.46 |
| Number of rolling passes | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Roll gap/cm | 8.76 | 7.71 | 6.89 | 5.82 | 5.08 | 4.02 | 3.37 |
| Actual thickness/cm | 9.26 | 8.22 | 7.38 | 6.33 | 5.62 | 4.52 | 4.15 |
| Number of rolling passes | 14 | 15 | 16 | ||||
| Roll gap/cm | 2.42 | 1.71 | 1.26 | ||||
| Actual thickness/cm | 3.01 | 2.4 | 1.76 |
The aluminum alloy plate prepared by the embodiment has the advantages of smooth surface, no defects such as cracks and the like and good performance.
As shown in fig. 2, for the present invention, the aluminum alloy sheet can also be rolled by continuous rolling, and then subjected to heat preservation after two rolling passes, so that the production efficiency is further improved, and the roll gap between the rolls is gradually reduced in the rolling process; the size of the roll gap between the rollers can be adjusted according to the actual thickness required by the aluminum alloy plate.
The beneficial effects of this embodiment are as follows:
according to the invention, through the matching of the heat preservation treatment and the rolling process, the deformation is increased continuously in the rolling process, the recrystallization degree of the alloy is increased more and more, finer short-axis crystals are obtained, the high toughness of the material is kept, and the aluminum alloy plate is not easy to crack in the rolling process.
The invention simplifies the rolling forming process of the aluminum alloy sheet, has simple operation, saves time and has high efficiency; the prepared aluminum alloy plate has smooth surface, no defects such as cracking and the like, excellent performance and can be used as an excellent raw material in various related fields. The rolling method of the aluminum alloy plate has high preparation efficiency and low cost, and can realize industrial production.
Example 3
The aluminum alloy plates prepared in the examples 1 and 2 are subjected to tensile strength and elongation detection, and the detection results are shown in
Table 3.
| Tensile strength (MPa) | Elongation (%) | |
| Example 1 | 449 | 13.5 |
| Example 2 | 480 | 12.4 |
It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230) \8230;) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. A rolling method of an aluminum alloy sheet is characterized by comprising the following steps:
s1, taking an aluminum alloy round bar or round ingot as a raw material, and carrying out heat preservation treatment on the raw material;
s2, starting a hot rolling mill, and putting the raw materials into a roller for rolling;
s3, after continuing heat preservation treatment on the raw materials, putting the raw materials into a roller for rolling again;
and S4, repeating the step S3 to obtain the aluminum alloy plate.
2. A method of rolling aluminium alloy sheet according to claim 1, wherein in step S1 the round bar or ingot is 2xxx aluminium alloy.
3. The method of rolling an aluminum alloy sheet as recited in claim 1, wherein the temperature of the heat-retaining treatment in step S1 is 450 to 520 ℃.
4. The rolling method of an aluminum alloy sheet according to claim 3, wherein the temperature of the heat-retaining treatment is 470 ℃ or 490 ℃.
5. The method for rolling an aluminum alloy sheet as recited in claim 1, wherein the heat-retaining treatment time in step S1 is 30 to 90min.
6. The method for rolling an aluminum alloy sheet according to claim 1, wherein the holding treatment time is 60min.
7. The method of rolling an aluminum alloy sheet according to any one of claims 3 to 6, wherein the holding treatment is performed in an electric heating furnace.
8. The method of rolling an aluminum alloy sheet according to claim 1, wherein the roll rotation speed is 200 to 1000r/min.
9. The method of rolling an aluminum alloy sheet as recited in claim 8, wherein the rotation speed of the rolls is 200 to 600r/min.
10. The method of rolling an aluminum alloy sheet as recited in claim 1, wherein a roll gap between the rolls is gradually reduced during the rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210487998.7A CN115254955A (en) | 2022-05-06 | 2022-05-06 | Rolling method of aluminum alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210487998.7A CN115254955A (en) | 2022-05-06 | 2022-05-06 | Rolling method of aluminum alloy sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115254955A true CN115254955A (en) | 2022-11-01 |
Family
ID=83759899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210487998.7A Pending CN115254955A (en) | 2022-05-06 | 2022-05-06 | Rolling method of aluminum alloy sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115254955A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007254825A (en) * | 2006-03-23 | 2007-10-04 | Kobe Steel Ltd | Method for manufacturing aluminum alloy sheet superior in bendability |
| JP2007277588A (en) * | 2006-04-03 | 2007-10-25 | Furukawa Sky Kk | Aluminum alloy rolled sheet for battery case having excellent multistage workability, and its production method |
| CN101190491A (en) * | 2006-11-24 | 2008-06-04 | 辽宁科技大学 | Rolling controlling method and device for double-roller continuous casting magnesium alloy sheet |
| CN106521381A (en) * | 2016-11-03 | 2017-03-22 | 湖南航天新材料技术研究院有限公司 | Preparation technology for large size super-high obdurability magnesium alloy thin plate |
| CN108474065A (en) * | 2016-01-08 | 2018-08-31 | 奥科宁克公司 | Novel 6xxx aluminium alloys and preparation method thereof |
| CN109954752A (en) * | 2017-12-25 | 2019-07-02 | 北京有色金属研究总院 | A method of improving 6000 line aluminium alloy sheet material formings |
| WO2021130636A1 (en) * | 2019-12-23 | 2021-07-01 | Aleris Rolled Products Germany Gmbh | Method of manufacturing an aluminium alloy rolled product |
| KR20220053056A (en) * | 2016-10-27 | 2022-04-28 | 노벨리스 인크. | Metal casting and rolling line |
-
2022
- 2022-05-06 CN CN202210487998.7A patent/CN115254955A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007254825A (en) * | 2006-03-23 | 2007-10-04 | Kobe Steel Ltd | Method for manufacturing aluminum alloy sheet superior in bendability |
| JP2007277588A (en) * | 2006-04-03 | 2007-10-25 | Furukawa Sky Kk | Aluminum alloy rolled sheet for battery case having excellent multistage workability, and its production method |
| CN101190491A (en) * | 2006-11-24 | 2008-06-04 | 辽宁科技大学 | Rolling controlling method and device for double-roller continuous casting magnesium alloy sheet |
| CN108474065A (en) * | 2016-01-08 | 2018-08-31 | 奥科宁克公司 | Novel 6xxx aluminium alloys and preparation method thereof |
| KR20220053056A (en) * | 2016-10-27 | 2022-04-28 | 노벨리스 인크. | Metal casting and rolling line |
| CN106521381A (en) * | 2016-11-03 | 2017-03-22 | 湖南航天新材料技术研究院有限公司 | Preparation technology for large size super-high obdurability magnesium alloy thin plate |
| CN109954752A (en) * | 2017-12-25 | 2019-07-02 | 北京有色金属研究总院 | A method of improving 6000 line aluminium alloy sheet material formings |
| WO2021130636A1 (en) * | 2019-12-23 | 2021-07-01 | Aleris Rolled Products Germany Gmbh | Method of manufacturing an aluminium alloy rolled product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106868436B (en) | Manufacturing method for producing high-temperature alloy GH4169 fine-grained bar through rapid-diameter forging combination | |
| CN106955893B (en) | A kind of processing method of superplastic forming SP700 titanium-alloy thin-plates | |
| CN105714223B (en) | A kind of homogenization heat treatment method of Al Zn Mg Cu Zr aluminium alloys | |
| CN106862272B (en) | Preparation method of high-strength high-ductility magnesium alloy plates | |
| CN111438317B (en) | Preparation method for forging and forming high-strength high-toughness near-beta type titanium alloy forging | |
| CN105088118A (en) | Grain ultra-fining method for nickel-based superalloy board | |
| CN108890218A (en) | A kind of high strength heat resistant alloy forge piece manufacturing process | |
| CN112048687A (en) | Preparation method of ultrafine crystal magnesium alloy with multi-scale microstructure | |
| CN106583447A (en) | Method for rolling austenitic stainless steel belt by using steckel mill | |
| CN108220670B (en) | Casting-rolling method and casting-rolling equipment for Cu-Ni-Si-Mg alloy plate strip | |
| CN101474745B (en) | Method for preparing AZ31B magnesium alloy pressing sheet material | |
| CN110205572B (en) | Preparation method of two-phase Ti-Al-Zr-Mo-V titanium alloy forged rod | |
| CN113308653B (en) | Aluminum lithium alloy heat treatment preparation method based on spray forming | |
| CN108642410B (en) | Process method for improving comprehensive mechanical property of aluminum alloy plate | |
| CN112251691B (en) | Preparation method of 5A90 aluminum lithium alloy ultrafine crystal plate | |
| CN114393056A (en) | Aeronautical high-temperature alloy plate structure and shape control method | |
| CN110144533A (en) | A method of regulation coarse second phase of 2219 aluminium alloy rings | |
| CN109136593A (en) | Plate wide cut aluminium alloy strips and preparation method thereof in a kind of electronic product | |
| CN111451314B (en) | Preparation method of high-purity copper rotary target | |
| CN113416906A (en) | Process for preparing titanium alloy bar blank by combining extrusion cogging and pulse current heat treatment | |
| CN115254955A (en) | Rolling method of aluminum alloy sheet | |
| CN115896538A (en) | High-performance copper-nickel-silicon-chromium alloy plate and processing method and application thereof | |
| CN1055323C (en) | Method for texture homogenization fining of Ti-Al alloy cast | |
| CN102876866B (en) | Heat treatment process for relieving or removing banded structure of hot-work die steel 4Cr5MoSiV1 | |
| CN113862538A (en) | High-strength heat-resistant magnesium alloy sheet and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |