EP3875629A1 - Method and installation for producing aluminum can sheet - Google Patents

Method and installation for producing aluminum can sheet Download PDF

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Publication number
EP3875629A1
EP3875629A1 EP20160733.0A EP20160733A EP3875629A1 EP 3875629 A1 EP3875629 A1 EP 3875629A1 EP 20160733 A EP20160733 A EP 20160733A EP 3875629 A1 EP3875629 A1 EP 3875629A1
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EP
European Patent Office
Prior art keywords
cold
hot
mill
sheet
rolled sheet
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.)
Withdrawn
Application number
EP20160733.0A
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German (de)
English (en)
French (fr)
Inventor
Ioannis Tsiros
Dionysios Spathis
Michael Stassinopoulos
Andreas Mavroudis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elvalhalcor Hellenic Copper And Aluminium Industry SA
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Elvalhalcor Hellenic Copper And Aluminium Industry SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Elvalhalcor Hellenic Copper And Aluminium Industry SA filed Critical Elvalhalcor Hellenic Copper And Aluminium Industry SA
Priority to EP20160733.0A priority Critical patent/EP3875629A1/en
Priority to CN202180018542.XA priority patent/CN115151675A/zh
Priority to CA3172760A priority patent/CA3172760A1/en
Priority to SI202130076T priority patent/SI3956489T1/sl
Priority to KR1020227033890A priority patent/KR20220146620A/ko
Priority to EP21708225.4A priority patent/EP3956489B1/en
Priority to AU2021232470A priority patent/AU2021232470A1/en
Priority to HUE21708225A priority patent/HUE063989T2/hu
Priority to PCT/EP2021/054999 priority patent/WO2021175761A1/en
Priority to JP2022552761A priority patent/JP2023516369A/ja
Priority to BR112022017624A priority patent/BR112022017624A2/pt
Priority to RS20230867A priority patent/RS64660B1/sr
Priority to ES21708225T priority patent/ES2963289T3/es
Priority to PT217082254T priority patent/PT3956489T/pt
Priority to MX2022010759A priority patent/MX2022010759A/es
Priority to PL21708225.4T priority patent/PL3956489T3/pl
Priority to US17/908,974 priority patent/US20230083429A1/en
Priority to HRP20231234TT priority patent/HRP20231234T1/hr
Publication of EP3875629A1 publication Critical patent/EP3875629A1/en
Priority to ZA2022/09615A priority patent/ZA202209615B/en
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent

Definitions

  • the present invention relates to a method for producing aluminum can sheet and to an installation configured to perform the method.
  • earing When aluminum can sheet is formed into cup-shaped articles, a phenomenon known as "earing" usually occurs to some extent. Earing can be observed as a wave-shaped appearance around the top edge of the formed cup. The wave-like protruding portions, also known as “ears", are formed during the deep drawing step in the fabrication of the cup and represent an undesirable feature of the article.
  • CBS aluminum can body stock
  • the cup In aluminum can body stock (CBS), the cup is subsequently ironed in multiple rings which can accentuate the wavy ears. High earing can create transport problems with the cup as well as insufficient trim after ironing, clipped ears, and trimmer jams. These artifacts are not desirable in aluminum can manufacturing. Thus, it is desired to minimize earing in order to avoid these problems and to increase the quality of the cup.
  • can body stock material such as AA3004, AA3104 or other aluminum alloy is basically suitable for making aluminum can sheet with low earing characteristics provided that a suitable manufacturing process can be established.
  • Patent application US 2002/0062889 A1 discloses a process and a plant for producing hot-rolled aluminum strip for can making.
  • the plant includes a reversing roughing stage for the feed material, which is used hot, and immediately thereafter finishing rolling of the strip, which is followed by heat treatment of the strip coiled up into coils.
  • recrystallization in the rolled material is suppressed by means of controlled temperature management of the hot strip.
  • temperature is maintained in the noncritical temperature range from 260' C. to 280' C to avoid recrystallization.
  • the recrystallization is brought about only outside the rolling train.
  • the hot rolled material is transferred to a continuous furnace directly following the finishing rolling.
  • the direct transfer brings about the advantage that a furnace used for recrystallization only has to apply a relatively small temperature difference (e.g. about 40°C - 60°C) between the rolling temperature and the recrystallization temperature, and thus achieves a favorable energy balance.
  • a relatively small temperature difference e.g. about 40°C - 60°C
  • a body (also denoted as ingot) made of an aluminum alloy is provided.
  • the body can be made of cast aluminum, which has subsequently been scalped to obtain a body suitable for further processing.
  • the body is heated to a homogenization temperature.
  • the main purpose of this heating step is to homogenize the material. Homogenization temperatures may be in the range from about 500°C to about 600°C, for example depending on the desired temperature for the next process step.
  • the body may be cooled down to temperatures suitable for hot rolling.
  • the body is hot rolled in a hot rolling mill to produce a hot rolled sheet.
  • the hot rolled sheet exiting the hot rolling mill exits the hot rolling mill at a hot rolling exit temperature.
  • the hot rolling step produces a hot rolled sheet having a hot mill exit gauge, which is the thickness of the rolled aluminum sheet after hot rolling.
  • temperature control is made such that the hot rolling exit temperature is selected so as to substantially avoid recrystallization of the hot rolled sheet.
  • the term "recrystallization” refers to a process by which deformed grains in a metallic body are replaced by a new set of grains that are essentially free of defects and nucleate and grow until the original grains have been entirely consumed. Recrystallization reduces the strength and hardness of the material while at the same time the ductility is increased.
  • the hot rolling exit temperature is selected such that the sheet exiting the hot rolling mill exhibits a high density of defects, such as dislocations, etc. and relative high strength and hardness, while at the same time ductility may be relatively low.
  • the hot rolled sheet is cold rolled in a cold rolling mill.
  • the purpose of this process step is to achieve a cold reduction, meaning that the gauge (or thickness) of the sheet is further reduced.
  • the cold reduction is performed to produce a cold rolled sheet having a cold mill exit gauge which is smaller than the hot mill exit gauge.
  • Cold rolling follows the hot rolling step, after the sheet has cooled down to temperatures of approximately 100°C or lower, e.g. as low as 50°c to 60°C.
  • the cold rolled sheet (having the cold mill exit gauge) is then transferred to a furnace to anneal the cold rolled sheet in an intermediate temperature range with temperatures selected to allow recrystallization of the cold rolled sheet.
  • the annealing step results in a fully recrystallized sheet having the cold mill exit gauge.
  • the microstructure of the recrystallized sheet typically exhibits a new set of relative defect-free grains replacing the defective microstructure obtained by cold rolling.
  • the recrystallized sheet is cold rolled to apply a cold reduction to produce a cold rolled sheet with a final gauge, the final gauge being smaller than the cold mill exit gauge.
  • the hot rolling exit gauge from a single stand reversing mill may typically range down to values about 2.0 mm. Producing lower exit gauge from a single stand reversing mill is generally difficult and may not be feasible due to difficulties in controlling crown, wedge and flatness of the sheet.
  • the tendency of the can-makers is to reduce the thickness of the can sheet, this tendency also known as "down-gauging". If it is desired to produce a lower thickness final product with similar earing and strength properties when compared to nowadays usual thicknesses it is required to keep the same total cold reduction applied to the material after intermediate annealing at hot gauge thickness (either self-annealing or batch annealing). Achieving this goal would require lowering the hot mill exit gauge to values significantly below 2 mm.
  • the new process is capable of substantially avoiding these problems identified in conventional processes.
  • the process according to the above formulation of the invention introduces a cold rolling step inserted between the preceding hot rolling step and the subsequent intermediate annealing step.
  • the new sequence of steps has at least two significant effects. A first effect may be understood considering the final product, the other effect may be understood when considering the thermo-mechanical process itself.
  • the final product generally exhibits relatively low earing values.
  • the resulting ears are more pronounced at about 45° (relative to the rolling direction).
  • This earing orientation is usually preferable from the final customer's point of view, i.e. from the point of view of the can maker.
  • the new method generally avoids or reduces high ears at 0° / 90° which are not desirable from the can maker's point of view and which are very likely obtained with the process described in the prior art, such as US 5,362,340 .
  • the final strength of the material and the earing is highly dependent from the amount of cold work after intermediate annealing at hot gauge. For example, if, in a present conventional process, a material with final gauge 0.26 mm is produced, the intermediate annealing may be performed at about 2 mm gauge. Therefore, the total cold reduction is about 87%.
  • the final customer requires 0.24 mm final gauge. In order to produce the same earing and properties it would be necessary to make the intermediate annealing at about 1.85 mm. This relatively small thickness often cannot be achieved satisfactorily in a single stand reversing mill due to flatness and thickness range limitations. These limitations do not exist in the new method.
  • Applying the new method enables a producer to produce thicker material from the hot mill (for example about 2.5 mm), make a light cold reduction to the required intermediate annealing gauge (1.85 mm in this hypothetical example), and anneal the sheet at intermediate annealing at this gauge to make the material fully soft before it is cold rolled to the final gauge.
  • Some limitations of using a single stand reversing mill as a hot rolling mill do no longer limit the capabilities of the overall process. If a single stand reversing mill is used as a hot rolling mill, the method can also increase a lot the output of the single stand hot mill, since it is producing thicker gauge.
  • advantages of the new process result at least partly from the fact that cold rolling is performed in two separate steps, wherein the first cold rolling step is performed after hot rolling and before intermediate annealing (on the un-recrystallized material) and the second cold rolling step is performed after the recrystallization annealing (at intermediate temperature) on a material which is recrystallized.
  • first cold rolling step is performed after hot rolling and before intermediate annealing (on the un-recrystallized material)
  • the second cold rolling step is performed after the recrystallization annealing (at intermediate temperature) on a material which is recrystallized.
  • a single stand reversing mill is used as a hot rolling mill in a preferred embodiment of the process and installation. While a tandem mill can be used instead of a single stand reversing mill for performing the hot rolling step, use of a single stand reversing mill is typically much less expensive so that the final product can be made in an economical fashion.
  • the single stand reversing mill is utilized in two different operation modes, wherein a first operation mode includes one or more flat passes and a second operation mode, utilized after the first operation mode, includes one or more coiling passes producing coiled sheet having the hot mill exit gauge.
  • the hot rolling step shall be performed such that recrystallization of the hot rolled sheet is substantially avoided.
  • the hot rolling exit temperature is in a range from about 200°C to about 320°C, with preferred hot rolling exit temperatures being lower than 290°C. These temperatures are usually suitable to avoid recrystallization completely, which enhances the advantages of the overall process.
  • the correct temperatures to avoid recrystallization completely may be selected depending from the alloy type and may differ from alloy to alloy.
  • the cold rolling step can be performed at least in the last rolling passes so that coils of cold rolled sheet are obtained in the single stand mill.
  • a continuous furnace may be used for the annealing step in the intermediate temperature range to obtain the recrystallized sheet.
  • a total reduction of more than 70% is applied to the aluminum sheet between the hot mill exit gauge and the final gauge.
  • the total reduction may be 80% or more or even 85% or more. This is partly due to the fact that cold rolling to reduce the gauge is performed in two steps instead of one single step.
  • the invention also relates to an installation for producing aluminum can sheet, the installation being configured to perform the method according to the invention.
  • Embodiments of the invention are capable of addressing both requirements in a satisfactory way using an economically feasible production process.
  • Figure 1 shows a schematic drawing of a portion of an installation 100 configured to manufacture aluminum can sheet suitable for making cup-shaped articles.
  • the schematic figure shows only some of the devices utilized in the production route.
  • the production installation typically includes casting devices to produce large cast ingots from aluminum alloy melt.
  • the cast ingots typically consist of coarse grains with dendrite structure and random texture.
  • Precipitates comprising aluminum and other constituents, such as Fe, Mn, and Si are typically distributed inhomogeneously in the cast ingot.
  • the cast ingots are homogenized in a homogenization furnace (also denoted as preheating furnace, not shown in Fig. 1 ).
  • the homogenization treatment is typically accompanied by characteristic changes of the solute content and the precipitation microstructure later affecting recrystallization, grain size and texture during the sheet production.
  • a single stand reversing mill 120 is used for hot rolling in the preferred installation.
  • the single stand reversing mill 120 is capable of being operated in two different operation modes drawn separately in schematic Fig. 1 .
  • HR-FP shown on the left hand side of single stand reversing mill 120
  • the incoming ingots are reduced in thickness using several flat passes where the material is rolled back and forth without being coiled on either side of the rolls.
  • HR-CP shown on the right-hand side of the drawing representing the single stand reversing mill 120
  • coiling reels CR on either side of the mill stand MS are used to coil the sheet SH between coiling passes performed in mutually opposite rolling directions.
  • one of the reels is operating as pay-off reel providing an incoming strip to the rolling gap formed in the mill stand.
  • the other reel is used as a tension reel coiling the outgoing strip after the rolling path. Since single-stand reversing mills are generally known in the art, a detailed description is considered as not necessary in this application.
  • the hot rolled material is then - after cooling down - transferred as a coil to a cold rolling stage 130 arranged downstream of the hot rolling stage in the material flow direction.
  • the cold rolling mill could be a single stand (as shown) or a multiple stands cold mill.
  • a batch furnace 140 is arranged downstream of the cold rolling stage 130.
  • the batch furnace is configured to receive multiple coils CL after cold rolling and to perform intermediate annealing of the cold material to achieve full recrystallization of the sheet material.
  • a further cold rolling stage 150 is arranged downstream of the intermediate annealing batch furnace 140 to apply cold rolling to the recrystallized material to obtain cold rolled material at the final gauge desired for further processing steps, e.g. as a H1X material or, more specifically, as a H19 material.
  • the cold rolling mill 150 comprises a single stand in the embodiment of Fig. 1 .
  • An exemplary process for producing aluminum can sheet on the installation 100 was performed as follows.
  • an aluminum alloy was cast to form a casting and subsequently scalped to obtain a body of cast and scalped aluminum alloy suitable for further processing.
  • This body is also denoted as ingot in the following.
  • the aluminum alloy can be a can body stock material such as AA3004, AA3104 or other aluminum alloy basically suitable for making aluminum can sheet.
  • the ingot was homogenized at about 500 - 595°C with soaking time e.g. from 5 to 20 hours, followed by ingot cooling down to about 490 - 530°C.
  • the homogenized ingot (aluminum body) was then transferred to the hot rolling mill without significant intermediate cooling so that hot rolling of the ingot started at about this temperature, i.e. at about 490-530°C.
  • a single stand-reversing mill 120 was utilized as hot rolling mill in this installation setup.
  • the thickness of the material was further reduced with hot rolling on the same single stand-reversing mill 120, with the difference that the material was coiled after each pass (coiling passes).
  • the number of coiling passes was from 2 to 8.
  • the thickness of the material after the last coiling pass was from about 1.7mm to about 5mm.
  • the exit temperature of the material after hot rolling i.e. the hot rolling exit temperature T HREX
  • the hot rolling exit temperature was in a range from about 200°C to about 340°C and preferably between about 220°C and about 280°C.
  • the reduction of each coiling pass was between 20 and 70%.
  • the hot rolled material was cooled down and then transferred to a cold rolling mill.
  • the cold rolled sheet was then transferred in coiled form to an batch furnace 140 for intermediate annealing.
  • An intermediate annealing step was then applied to the cold rolled sheet.
  • Annealing temperatures and annealing times were selected so that the annealed material was allowed to become fully recrystallized and to develop a strong cube texture.
  • a typical range of annealing temperature is from 280°C to 450°C with 1 to 12 hours holding time.
  • the recrystallized annealed sheet was then subject to cold rolling to apply a cold reduction suitable to produce a cold rolled sheet with a final gauge.
  • cold rolling from 70% to 95% reduction was applied to the recrystallizes sheet, giving the material the required strength and balancing the cube texture with rolling texture.
  • the cube texture developed after annealing was weak and the final product had high 45° earing.
  • the un-recrystallized hot band undergoes a relative low cold reduction and then an intermediate annealing is applied to the material to become fully soft.
  • an intermediate annealing thickness reduction with cold rolling without deterioration of the strong cube texture after annealing.
  • tandem hot rolling mill may be used instead of a single stand reversing mill to perform the hot rolling step preceding the cold rolling step.
  • Fig. 2 schematically illustrates the technical connection between the degree of recrystallization of the sheet material after the initial hot rolling step and the amount and type of earing after applying cold reduction to the final gauge.
  • Fig. 3 illustrates the importance of the step of cold reduction prior to the intermediate annealing and the effect on the type and degree of earing after cold reduction to the final gauge.
  • the x-axis represents the degree of cold reduction (in percent) applied after the intermediate annealing.
  • the x-axis represents the amount of cold reduction achieved in the cold rolling mill 150 situated downstream of the intermediate annealing furnace 140.
  • the y-axis represents the type and amount of earing (in percent).
  • the area above the baseline BL corresponds to 0 - 90° earing, whereas the area below the baseline BL represents 45° earing.
  • the absolute distance of a data point from the baseline in the y-direction of the diagram represents the amount or strength of the respective earing, meaning that a point on the baseline BL corresponds to a sheet showing no earing at all.
  • the curves of the diagram represent general trends established in a high number of experiments.
  • the schematic box plots BP in Fig. 3 indicate that the trends represented by the lines are considered to be significant.
  • Fig. 2 basically illustrates the importance of the requirement that the hot rolling exit temperature should be selected such that any recrystallization of the hot rolled sheet should be avoided as much as possible.
  • the solid line represents a case where the rolled sheet is substantially un-recrystallized after finishing the hot rolling operation.
  • the lower curve (dashed line) represents reference cases where the sheets were partially recrystallized after finishing the hot rolling step which, in other words, means that the recrystallization was not sufficiently avoided in the presented reference processes.
  • the degree of 0 - 90° earing is lower than in cases according to embodiments of the invention.
  • the degree of 0 - 90° earing decreases and would vanish completely at a cold reduction which is not sufficient to obtain the thinner final gauge.
  • the character of the earing changes from 0° - 90° earing to predominantly 45° earing and the amount of 45° earing increases to a level much higher in absolute terms than in the material according to the claimed process (solid line). This shows that the degree of recrystallization after the hot rolling step has a significant influence on the amount and character of earing in the final product.
  • the diagram in Fig. 3 can be read in a similar way.
  • the diagram illustrates the importance of the step of cold reduction applied prior to the immediate annealing.
  • the upper curve (dashed line) corresponds to a case where no cold reduction was applied prior to annealing. This could be a process similar to the processes described in the prior art mentioned in the beginning of this application. It is seen that a high degree of 0° - 90° earing is present immediately after the intermediate annealing. When the material is finally cold rolled to the final gauge (maximum amount of cold reduction) there is almost no or very little earing in the final product. If a certain amount of 45° earing is present, the absolute amount is small.
  • the dotted line below the dashed line represents processes according to embodiments of the invention where a cold reduction is applied prior to the intermediate annealing in a cold mill rolling the (essentially un-recrystallized) material exiting the hot rolling state before the material is transferred to the intermediate annealing.
  • the amount of 0 - 90° earing is less than in the case of no cold reduction prior to annealing.
  • the sheet is reduced in thickness to the final gauge (at maximum cold reduction), there is a significant amount of 45° earing, which is a property desired by many can makers working with a very thin aluminum sheet.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metal Rolling (AREA)
EP20160733.0A 2020-03-03 2020-03-03 Method and installation for producing aluminum can sheet Withdrawn EP3875629A1 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
EP20160733.0A EP3875629A1 (en) 2020-03-03 2020-03-03 Method and installation for producing aluminum can sheet
JP2022552761A JP2023516369A (ja) 2020-03-03 2021-03-01 アルミニウム缶シートを生成する方法及び設備
BR112022017624A BR112022017624A2 (pt) 2020-03-03 2021-03-01 Método e instalação para a produção de folha de lata de alumínio
SI202130076T SI3956489T1 (sl) 2020-03-03 2021-03-01 Postopek za proizvodnjo aluminijeve pločevine za pločevinke
KR1020227033890A KR20220146620A (ko) 2020-03-03 2021-03-01 알루미늄 캔 시트의 제조 방법 및 설비
EP21708225.4A EP3956489B1 (en) 2020-03-03 2021-03-01 Method for producing aluminum can sheet
AU2021232470A AU2021232470A1 (en) 2020-03-03 2021-03-01 Method and installation for producing aluminum can sheet
HUE21708225A HUE063989T2 (hu) 2020-03-03 2021-03-01 Eljárás alumínium dobozhoz való lemez elõállítására
PCT/EP2021/054999 WO2021175761A1 (en) 2020-03-03 2021-03-01 Method and installation for producing aluminum can sheet
CN202180018542.XA CN115151675A (zh) 2020-03-03 2021-03-01 制造铝罐板的方法和设备
CA3172760A CA3172760A1 (en) 2020-03-03 2021-03-01 Method and installation for producing aluminum can sheet
RS20230867A RS64660B1 (sr) 2020-03-03 2021-03-01 Postupak za proizvodnju aluminijumskog lima za limenke
ES21708225T ES2963289T3 (es) 2020-03-03 2021-03-01 Método de fabricación de láminas para latas de aluminio
PT217082254T PT3956489T (pt) 2020-03-03 2021-03-01 Método para produzir folha de lata de alumínio
MX2022010759A MX2022010759A (es) 2020-03-03 2021-03-01 Metodo e instalacion para producir hoja de lata de aluminio.
PL21708225.4T PL3956489T3 (pl) 2020-03-03 2021-03-01 Sposób wytwarzania blachy aluminiowej do produkcji puszek
US17/908,974 US20230083429A1 (en) 2020-03-03 2021-03-01 Method and installation for producing aluminum can sheet
HRP20231234TT HRP20231234T1 (hr) 2020-03-03 2021-03-01 Postupak za proizvodnju lima za aluminijske limenke
ZA2022/09615A ZA202209615B (en) 2020-03-03 2022-08-29 Method and installation for producing aluminum can sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20160733.0A EP3875629A1 (en) 2020-03-03 2020-03-03 Method and installation for producing aluminum can sheet

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EP3875629A1 true EP3875629A1 (en) 2021-09-08

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EP20160733.0A Withdrawn EP3875629A1 (en) 2020-03-03 2020-03-03 Method and installation for producing aluminum can sheet
EP21708225.4A Active EP3956489B1 (en) 2020-03-03 2021-03-01 Method for producing aluminum can sheet

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EP21708225.4A Active EP3956489B1 (en) 2020-03-03 2021-03-01 Method for producing aluminum can sheet

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US (1) US20230083429A1 (pt)
EP (2) EP3875629A1 (pt)
JP (1) JP2023516369A (pt)
KR (1) KR20220146620A (pt)
CN (1) CN115151675A (pt)
AU (1) AU2021232470A1 (pt)
BR (1) BR112022017624A2 (pt)
CA (1) CA3172760A1 (pt)
ES (1) ES2963289T3 (pt)
HR (1) HRP20231234T1 (pt)
HU (1) HUE063989T2 (pt)
MX (1) MX2022010759A (pt)
PL (1) PL3956489T3 (pt)
PT (1) PT3956489T (pt)
RS (1) RS64660B1 (pt)
SI (1) SI3956489T1 (pt)
WO (1) WO2021175761A1 (pt)
ZA (1) ZA202209615B (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4306668A1 (en) * 2022-07-14 2024-01-17 Elvalhalcor Hellenic Copper and Aluminium Industry S.A. Method of producing aluminum can sheet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362341A (en) 1993-01-13 1994-11-08 Aluminum Company Of America Method of producing aluminum can sheet having high strength and low earing characteristics
US5362340A (en) 1993-03-26 1994-11-08 Aluminum Company Of America Method of producing aluminum can sheet having low earing characteristics
US20020062889A1 (en) 1997-05-16 2002-05-30 Reimar Finck Method and installation for producing hot rolled aluminium tape intended for can making
WO2015140833A1 (ja) * 2014-03-20 2015-09-24 株式会社Uacj Ｄｒ缶ボディ用アルミニウム合金板及びその製造方法
CN106676440A (zh) * 2016-12-22 2017-05-17 新疆众和股份有限公司 一种阳极氧化用硬态铝合金的过程热处理工艺
EP3245309A1 (en) * 2015-01-12 2017-11-22 Novelis, Inc. Highly formable automotive aluminum sheet with reduced or no surface roping and a method of preparation
WO2018034960A1 (en) * 2016-08-17 2018-02-22 Novelis Inc. Anodized aluminum with dark gray color

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5913989A (en) * 1996-07-08 1999-06-22 Alcan International Limited Process for producing aluminum alloy can body stock
JPH1161365A (ja) * 1997-08-22 1999-03-05 Sky Alum Co Ltd 深絞り用アルミニウム合金板の製造方法
JP3871473B2 (ja) * 1999-07-26 2007-01-24 古河スカイ株式会社 缶胴用アルミニウム合金板の製造方法
JP4011293B2 (ja) * 2001-01-19 2007-11-21 三菱アルミニウム株式会社 耐胴切れ性に優れた缶ボディ用アルミニウム合金板材の製造方法
JP4846457B2 (ja) * 2006-06-06 2011-12-28 古河スカイ株式会社 曲げ加工性に優れたキャップ用アルミニウム合金板の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362341A (en) 1993-01-13 1994-11-08 Aluminum Company Of America Method of producing aluminum can sheet having high strength and low earing characteristics
US5362340A (en) 1993-03-26 1994-11-08 Aluminum Company Of America Method of producing aluminum can sheet having low earing characteristics
US20020062889A1 (en) 1997-05-16 2002-05-30 Reimar Finck Method and installation for producing hot rolled aluminium tape intended for can making
WO2015140833A1 (ja) * 2014-03-20 2015-09-24 株式会社Uacj Ｄｒ缶ボディ用アルミニウム合金板及びその製造方法
EP3245309A1 (en) * 2015-01-12 2017-11-22 Novelis, Inc. Highly formable automotive aluminum sheet with reduced or no surface roping and a method of preparation
WO2018034960A1 (en) * 2016-08-17 2018-02-22 Novelis Inc. Anodized aluminum with dark gray color
CN106676440A (zh) * 2016-12-22 2017-05-17 新疆众和股份有限公司 一种阳极氧化用硬态铝合金的过程热处理工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4306668A1 (en) * 2022-07-14 2024-01-17 Elvalhalcor Hellenic Copper and Aluminium Industry S.A. Method of producing aluminum can sheet
WO2024012809A1 (en) * 2022-07-14 2024-01-18 Elvalhalcor Hellenic Copper And Aluminium Industry S.A. Method of producing aluminum can sheet

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EP3956489B1 (en) 2023-08-09
SI3956489T1 (sl) 2023-12-29
CN115151675A (zh) 2022-10-04
ES2963289T3 (es) 2024-03-26
WO2021175761A1 (en) 2021-09-10
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