CN1661122A - Aluminous materials having excellent ductility and mfg. method for same - Google Patents
Aluminous materials having excellent ductility and mfg. method for same Download PDFInfo
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- CN1661122A CN1661122A CN 200510051689 CN200510051689A CN1661122A CN 1661122 A CN1661122 A CN 1661122A CN 200510051689 CN200510051689 CN 200510051689 CN 200510051689 A CN200510051689 A CN 200510051689A CN 1661122 A CN1661122 A CN 1661122A
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Abstract
The pure aluminum type continuously cast and rolled material is cold-rolled at 30 to 70 26608624raft. Then the material is subjected to high-temperature precipitation treatment at 500 to 640 DEG C equal or longer one hour, and then processing cold-roll. After this, processing final anneal at 200 to 300 DEG C. Although it is continuously cast and rolled material, the aluminum material having 25 percent or more final anneal specific elongation manufactured the manufacturing method, and allowing drawing process to process high elongation characteristic fin.
Description
Technical field
The present invention relates to a kind of be suitable for the high application examples of extending processibility of requirement as the aluminium that draws fin material etc. and as described in the manufacture method of aluminium.
Background technology
Be used for the plate wing of heat exchanger, adopt draw forming or non-drawing forming process to be shaped ring part (for example Japanese patent application No.5-230579) that pipe passes through.For at this forming technology and particularly guarantee formability in bulging process or drawing work, material is necessary to have bigger unit elongation, thereby prevents that material from rupturing in forming technology.If carry out refining, can obtain good unit elongation so, but can produce the ring crackle that originates in recrystallize crystal boundary place so that the annealed material that is called 0 material to be provided.Therefore, the general refinery practice that is known as H22 (after cold working, softening thermal treatment) that adopts.H22 relates to a kind of material, described material is in the state of 0 material (annealed material) and the middle work-hardened condition between 1/2 hardening state, and described 1/2 hardening state is to be in the state of 0 material and the middle hardening state between the state of processed hardened material by cold-working.
For example, the fine aluminium sill that obtains for technologies such as adopting the DC casting, for example JIS A1050 1200 or other, softening processing in H22 will obtain suitable extension (25% or bigger) workability, and feasible mode that can be good realizes the shaping partly of aforementioned ring by drawing forming process.
Recently, for boosting productivity or obtaining trickleer structure, adopt continuous casting and rolling technology to produce aluminium.It is also conceivable that in aforementioned panels wing and other production and adopt this manufacturing process.
Yet, have JIS A1050 as described above or 1200 composition through continuous casting and rolling material, even if carried out the H22 processing, accessible unit elongation is up to about 20%.Therefore, not being suitable for the requirement unit elongation through continuous casting and rolling material is 25% or the shaping of bigger plate wing.Therefore, in the shaping processing that requires big unit elongation, do not consider to use through continuous casting and rolling material.
Summary of the invention
Therefore, the present inventor studies improving through unit elongation Sven-Gan Eriksson (erichsen) value of continuous casting and rolling material, and find in order to produce strain, by evenly separating out as the Fe of alloying constituent, and can obviously improve unit elongation through continuous casting and rolling material by controlling the structure after cold rolling under certain rolling draft, realized the present invention thus.
The present invention is implemented under the condition in front.The object of the present invention is to provide a kind of aluminium, described aluminium is for through continuous casting and rolling material, but can use in requiring high application of extending processibility, for example the manufacture method of plate wing etc. and a kind of described aluminium.
Therefore, in order to realize aforementioned purpose, a first aspect of the present invention relates to the aluminium with excellent ductility, it is characterized in that, described aluminium for make by fine aluminium through continuous casting and rolling material, and maximum length is equal to or greater than 2.0 microns and long-width ratio and is equal to or greater than 3 intermetallic compound base and is distributed in the metal construction in the ratio that the plate surface is observed to be equal to or greater than 30 crystal grain/10000 square microns.
A second aspect of the present invention relates to the aluminium with excellent ductility, it is characterized in that, process continuous casting and the rolling material of described aluminium for making by fine aluminium, and the tensile strength of described aluminium is that 100-130MPa and specific conductivity are equal to or greater than 58%IACS.
A third aspect of the present invention relates to the aluminium with excellent ductility, it is characterized in that, process continuous casting and the rolling material of described aluminium for making by fine aluminium, and maximum length is equal to or greater than 2.0 microns and long-width ratio and is equal to or greater than 3 intermetallic compound base and is distributed in the metal construction in the ratio that the plate surface is observed to be equal to or greater than 30 crystal grain/10000 square microns, and the tensile strength of described aluminium is that 100-130MPa and specific conductivity are equal to or greater than 58%IACS.
In addition, a first aspect of the present invention relates to the manufacture method of the aluminium with excellent ductility, it is characterized in that, to make by fine aluminium through continuous casting and rolling material at rolling draft be carry out under the condition of 30-70% cold rolling, the high temperature that equals under 500-640 ℃ of condition then or be longer than 1 hour is separated out processing, carry out cold rollingly then, and under 220-300 ℃ of condition, carry out final annealing then.
A second aspect of the present invention relates to the manufacture method of the aluminium with excellent ductility, described method is based on the manufacture method of the related aluminium with excellent ductility of a first aspect of the present invention, and it is characterized in that, be equal to or greater than in speed of cooling under 70 ℃/second the condition and cast through continuous casting and rolling material described.
A third aspect of the present invention relates to the manufacture method of the aluminium with excellent ductility, described method is based on of the present invention first or the manufacture method of the related aluminium with excellent ductility of second aspect, and it is characterized in that the cold rolling rolling draft that carries out is equal to or greater than 90% after high temperature is separated out processing.
Employed fine aluminium contains impurity F e and other element that comprises aluminium inevitably among the present invention.The Fe that for example, can contain 0.2-1.0% in the fine aluminium.
Except that Fe, Si can be used as unavoidable impurities in the fine aluminium.For example wherein Si content can be 0.2% or still less.
As for the amount of other impurity, the present invention is not particularly limited its content.Yet desirable is that the purity of the aluminium in the fine aluminium among the present invention is 99.0% or higher.
In aluminium, importantly to control the maximum length of intermetallic compound according to a kind of form of the present invention.Distribute with the ratio that is equal to or greater than 30 crystal grain/10000 square microns if maximum length is equal to or greater than the intermetallic compound that 2.0 microns and long-width ratio be equal to or greater than in 3 the aluminium, this aluminium can have fabulous ductility so.If described distribution ratio is less than 30 crystal grain/10000 square microns, Fe local existence under the over-saturation solid solution state so makes ductility descend.
In aluminium according to another kind of form of the present invention, because process continuous casting and the rolling material of described aluminium for making by fine aluminium, and described aluminium has the tensile strength and the high conductivity of 100-130MPa size, so described aluminium has high strength and outstanding unit elongation feature, make that solution hardening is less in extending processing, and can carry out bigger extension processing in addition, and can not produce the crackle of origin at recrystallize crystal boundary place.If tensile strength is less than 100MPa, the insufficient strength of undercapacity, and fin so.If tensile strength surpasses 130MPa, the too high and formability reduction of intensity so.In addition, the specific conductivity that is equal to or greater than 58%IACS provides higher extension workability.If specific conductivity is less than 58%IACS, it is not enough to extend workability so, makes to be difficult to aforementioned panels wing material etc. is carried out draw forming or non-draw forming well.
As mentioned above, the aluminium of being made by fine aluminium of the present invention can reach 25% or higher unit elongation.Particularly, under the situation of for example plate wing material, the loop portions timesharing when using draw forming or non-drawing forming process to be shaped to be used for by pipe can produce local bigger stress in bending.Yet, the ring part that aluminium of the present invention allows to be shaped and not have the ring crackle.Therefore, even, also can obtain good formability for the drawing forming process of plate wing.Therefore, aluminium of the present invention is suitable for the fin material through drawing.Yet the purposes of aluminium of the present invention is not limited to the fin material that described process is drawn, and also can be used as the material that serves many purposes of the high elongation property of requirement.
In the manufacture method of aluminium of the present invention, used pure aluminum material.Pure aluminum material is by continuous casting and rolling being produced.Continuous casting and rolling technology make not to be needed casting and hot-rolled step are separately carried out each other, and these steps are carried out continuously.In the present invention, can adopt known method, for example twin roller casting technology, belt foundry engieering etc. carry out continuous casting and rolling, are not subjected to the restriction of any concrete grammar among the present invention.Yet, continuous casting and rolling in, preferably under speed of cooling is equal to or greater than 70 ℃/second condition, obtain through continuous casting and rolling fine aluminium material.This be because, if speed of cooling is less than 70 ℃/second, under solid solution condition, do not have Fe, but crystallize out, when making that carrying out high temperature after under cold rolling separates out processing, can not produce separating out of Al-Fe base intermetallic compound.Refrigerative is described fast in the speed of cooling scope in front has fine structure through continuous casting and rolling material, and has further increased intensity.Cold rolling
Carry out cold rolling to aforesaid through continuous casting and rolling material.
(1) at preceding cold rolling (rolling draft 30-70%)
In carrying out cold-rolled process, carry out high temperature as described below and separate out processing.In the cold-rolled process before high temperature is separated out processing, total rolling draft is limited between the 30%-70%.
Particularly, under the predetermined rolling draft condition by cold rolling obtain rolling depress carrying out continuous casting and rolling after and to carry out high temperature be necessary before separating out processing.
If rolling draft is less than 30%, then can not reaches and separate out needed strain, and therefore separate out and be difficult to effectively separate out Fe in the treating processes at high temperature subsequently.
Therefore, when material being carried out the H22 processing, can not obtain enough unit elongation.Therefore, carrying out before high temperature separates out processing, rolling draft need be equal to or greater than 30%.On the other hand, when being rolled under at rolling draft when depressing greater than 70% condition, separate out at high temperature and to handle carry out later cold rolling and only be allowed to thickness to soleplate and produce very in a small amount rolling depressing, make when material being carried out the H22 processing, can not reach enough unit elongation.Therefore, be limited between the 30%-70% at the rolling draft that carries out before high temperature is separated out processing.
In addition, consider actually operating, preferably under rolling draft is equal to or greater than 40% condition, carry out cold rolling, this be since when rolling draft less than 30% the time, in order to obtain enough unit elongation, need high temperature to separate out the treatment time and be longer than 24 hours.In addition, based on the reason identical, also be suitable as the upper limit with 60% with the aforementioned upper limit is set.
(2) high temperature is separated out processing (500 ℃-640 ℃)
Carry out with the rolling draft of 30-70% after continuous casting and rolling the finishing cold rolling after, under 500 ℃ of-640 ℃ of conditions, carry out high temperature and separate out processing, evenly separate out the precipitate of Fe thus.Handle if material is carried out H22, can reach 25% or bigger unit elongation that prior art can not reach so in final cold rolling back.Can not to reach big unit elongation in order making to reach traditionally, to carry out high temperature and separate out to handle and be absolutely necessary through continuous casting and rolling material.
Below will make an explanation to its reason.Compare with the DC casting technique of slow cooling speed (directly chilling technology), faster in the continuous casting process, Fe forms over-saturation sosoloid in speed of cooling.Carry out in this state cold rollingly material being carried out to reach enough unit elongation when H22 handles.Yet, cold rolling as if under certain rolling draft condition, carrying out, and in cold rolling back Fe is carried out high temperature under hot conditions and separate out processing, Fe evenly separates out so, makes it possible to achieve unprecedented high unit elongation.
Separate out the temperature of processing as for high temperature, described temperature need be equal to or greater than 500 ℃.If described temperature less than 500 ℃, can not realize fully separating out of Fe so.Although for evenly separating out the preferred high temperature of Fe at short notice, can make the local bubble that produces, destroy the outward appearance of product in the temperature more than 640 ℃.Therefore, carrying out high temperature, to separate out the proper temperature of processing be 500 ℃-640 ℃.In addition, consider actually operating, need heat treatment time to be longer than 24 hours, thereby obtain enough unit elongation in the thermal treatment of carrying out below 500 ℃.At short notice heat treatment furnace is caused damage in the thermal treatment of carrying out more than 640 ℃.For these reasons, carry out high temperature and separate out the lower limit temperature of processing and be preferably 550 ℃, and its ceiling temperature is preferably 630 ℃.More preferably, lower limit temperature is 570 ℃, and ceiling temperature is 610 ℃.
Therefore for heat treatment time, in order to obtain enough unit elongation, the hold-time is at least to be needed in 1 hour, and to equal or be longer than 1 hour be desirable the described time.If the time that the heat treated hold-time is set to increase, can quicken separating out of Fe more reliably so.Yet with regard to productivity, the hold-time will be disadvantageous more than 24 hours.Therefore, separate out the heat treatment time of processing for high temperature, 1-24 hour is suitable, and more preferably, 2-10 hour is suitable.
(3) cold rolling in the back
Carrying out carrying out cold rolling once more after high temperature separates out processing to obtain required final thickness.In the cold-rolled process of back, be not particularly limited rolling draft according to the present invention.Yet if in rolling draught deficiency in the cold-rolled process of back, the unit elongation of material is enough not big so.Therefore, needed is to make the rolling draft in the cold-rolled process of back be equal to or greater than 90%.
(4) final annealing (220 ℃-300 ℃)
Carry out above-mentioned the back cold rolling after, carry out final annealing, thereby the material deliquescing has big unit elongation thus.The Heating temperature of final annealing is preferably 220 ℃-300 ℃.If described Heating temperature is lower than 220 ℃, then can not fully obtain the effect of annealing.If described Heating temperature surpasses 300 ℃, then can produce recrystallize, and become the starting point that produces the ring crackle.Therefore, the scope of aforementioned temperature shown in is fit to.
As mentioned above, aluminium according to the present invention has and is equal to the DC cast aluminum and is higher than conventional high-elongation feature through continuous casting and rolling aluminium material, even and if the part also can high working modulus process and can not crack.
In addition, manufacturing method according to the invention, after cold rolling after the rolling draft with 30-70% carries out continuous casting, under 500 ℃ of-640 ℃ of conditions, carry out high temperature and separate out processing, make owing to carry out final annealing after cold rolling, therefore can realize having and be equal to DC cast aluminum and conventional through continuous casting and rolling aluminium inaccessiable 25% or higher unit elongation final.Therefore, even if having in the high application of extending formability in the draw forming as the plate wing, also might form processing under the state preferably at needs.
Aluminium of the present invention can be used to the fin of heat exchanger etc. other, the elongation property that it is had relatively high expectations, and as the unit elongation Sven-Gan Eriksson value that has through continuous casting and rolling material with DC casting par.
Description of drawings
Fig. 1 shows the synoptic diagram of production according to the step of aluminium of the present invention;
Fig. 2 is to use the synoptic diagram of producing the step of plate wing according to aluminium of the present invention; With
Fig. 3 shows the synoptic diagram of plate wing material and pipe.
Embodiment
Below, in conjunction with Fig. 1 one embodiment of the present of invention are described.
Material based on fine aluminium is produced out, and uses appropriate means to be melted, and carries out continuous casting and rolling subsequently.In carrying out continuous casting and rolling process, adopt appropriate means such as twin roller casting technology etc. to carry out a series of castings and rolling step continuously.In this technology, preferably under being equal to or greater than 70 ℃/second condition, speed of cooling carries out continuous casting and rolling.
Carry out cold rolling to resulting through continuous casting and rolling material on production line or in the miscellaneous equipment.
In cold-rolled process, carry out high temperature in intervenient mode and separate out processing.Before high temperature is separated out processing, carry out cold rolling with the total rolling draft of 30%-70%.The number of times that is rolled in cold rolling has no particular limits.
After cold rolling before separating out processing, carry out high temperature and separate out processing.
Separate out in the treating processes at high temperature, be heated to 500 ℃-640 ℃ (preferred 550 ℃-630 ℃) 1-24 hour (preferred 2-10 hour), make it mainly is to separate out as precipitate by continuous casting and the rolling Fe that is solid-solubilized in the matrix.
After that, carry out cold rolling to obtain the thickness of soleplate in the back.Though be not particularly limited the rolling draft in the cold-rolled process, preferably usually be rolled to be equal to or greater than 90% rolling draft in the back.
With aluminium be heated to 220 ℃-300 ℃ for example 1-24 hour, carry out final annealing then with softener material.Owing to carry out final annealing, so aluminium has and is equal to or greater than 25% unit elongation.By regulating the annealing temperature in this technology, can regulate softening degree.
Below in conjunction with Fig. 2 to being described for aluminium 1 being processed into the step that the plate wing forms ring part 5.
On the required area of aluminium 1, carry out the bulging processing that loop portions divides and heave part 1a, carry out the processing of drawing that the multistage draws on the part 1a and heave part 1b heaving then with formation with formation.Process to form rough ring part 3 in the perforation that forms hole 2 among the part 1b of heaving of having drawn.On rough ring part 3, carry out enlarging processing to form required ring part 5.In carrying out series of steps, the elongation property of aluminium 1 is good, makes can to finish this forming technology and can not crack or other.
The many plate wing materials 10 that obtain by above forming technology carry out stacked, make its mutual spacing be subjected to the restriction of the height of ring part 5, as shown in Figure 3.Pipe 20 is inserted into and passes hole 2 and be fixed.With regard to pipe 20 fixing, pipe 20 has been shaped and has made its external diameter be slightly less than the internal diameter in hole 20.After pipe 20 inserted the hole 2 of superimposed panel wings 10, other was pressed against on the ring part 5 with the outer peripheral portion with pipe 20 by using stopper (not shown) etc., thus pipe 20 radially expand, finish fixing between plate wing 10 and the pipe 20 thus.
Under the condition that does not depart from scope of the present invention, can change, and the present invention is not subjected to the restriction of previous embodiment the present invention.
For example, though the situation of extending the aluminium of workability in conjunction with the height that is produced by described manufacture method as having of plate wing material is illustrated previous embodiment, but, the application of aluminium is not limited to the plate wing, but can be used for the high multiple use that extends workability of requirement according to the present invention.
Example
The fine aluminium material contains 0.1% Si, 0.7% Fe, and all the other are Al and unavoidable impurities, described pure aluminum material uses continuous casting and the rolling technology with the twin roller casting technology of speed of cooling as shown in table 1 to be produced.
The fine aluminium material of producing with 7.2 millimeters thicknesss of slab is carrying out carrying out cold rolling with rolling draft as shown in table 1 before high temperature is separated out processing.Then, the high temperature that carries out for some time as shown in table 1 under temperature condition as shown in table 1 is separated out processing.After that, described material is cold-rolled to the final plate thickness with 0.1 millimeter size with rolling draft as shown in table 1.Then, by carrying out the refining refinement that final annealing (be heated to 250 ℃ 6 hours) is finished material, prepare sample thus.
In order to compare, sample is also by being cold-rolled to final plate thickness, carries out final annealing then and do not carry out high temperature and separate out and handle and be produced out.
Use scanning electron microscopic observation plate surface by slave plate surface one side, and measure the crystal grain number in maximum length, its long-width ratio (maximum length/minimum length) and the predetermined area of intermetallic compound and determine the distribution of intermetallic compound in each sample.
In addition, tensile strength, unit elongation and the specific conductivity of each sample are measured.Measuring result is as shown in table 1.
After this, adopt on each sample and draw processing technology and carry out the fin press working, condition is that the fin diameter is that 9.40 millimeters and spacing of fin (height of ring part) are the 1.8-3.0 millimeter.By the fin with various spacings of fin that forms is observed the assessment of carrying out formability.Be illustrated in no any crackle or fissured good shaping in the ring part with zero, with * be illustrated in and occur crackle or crack in the material.
The assessment result of formability is as shown in table 1.
Can find out obviously that from table 1 example of the present invention in drawing technology has bigger unit elongation and reached higher formability, has predetermined strength simultaneously.
On the other hand, the comparative example that adopts the manufacture method outside the scope of the invention to produce has relatively poor formability, and is not suitable for and draws processing technology.
Table 1
| Working condition | Intermetallic compound *(crystal grain/10000 (μ m) 2) | Specific conductivity (%IACS) under 20 ℃ of conditions | Performance | The fin formability | |||||||||||
| Foundry goods speed of cooling (℃/second) | At preceding rolling draft (%) | High temperature is separated out processing | At back rolling draft (%) | Tensile strength (MPa) | Unit elongation (%) | Spacing of fin (mm) | |||||||||
| Temperature (℃) | Time (hr.) | ?1.8 | ?2.0 | 2.3 | ?2.6 | ?3.0 | |||||||||
| The invention example | ?1 | ????107 | ????31 | ????590 | ???24.0 | ????98.0 | ????35 | ????58.5 | ????128 | ????27 | ?○ | ?○ | ○ | ?○ | ?○ |
| ?2 | ????127 | ????50 | ????590 | ???1.0 | ????97.2 | ????57 | ????58.7 | ????125 | ????30 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?3 | ????197 | ????50 | ????590 | ???4.0 | ????97.2 | ????62 | ????59.0 | ????120 | ????32 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?4 | ????93 | ????50 | ????590 | ???24.0 | ????97.2 | ????71 | ????59.2 | ????122 | ????33 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?5 | ????152 | ????69 | ????590 | ???4.0 | ????95.5 | ????75 | ????59.5 | ????123 | ????26 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?6 | ????105 | ????50 | ????500 | ???4.0 | ????97.2 | ????31 | ????58.2 | ????103 | ????27 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?7 | ????73 | ????50 | ????530 | ???4.0 | ????97.2 | ????42 | ????58.5 | ????111 | ????26 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?8 | ????120 | ????50 | ????560 | ???4.0 | ????97.2 | ????55 | ????58.8 | ????115 | ????28 | ?○ | ?○ | ○ | ?○ | ?○ | |
| ?9 | ????85 | ????50 | ????620 | ???4.0 | ????97.2 | ????69 | ????59.2 | ????124 | ????29 | ?○ | ?○ | ○ | ?○ | ?○ | |
| 10 | ????175 | ????50 | ????640 | ???4.0 | ????97.2 | ????85 | ????59.5 | ????129 | ????28 | ?○ | ?○ | ○ | ?○ | ?○ | |
| Comparative example | 11 | ????123 | ????27 | ????590 | ???4.0 | ????98.1 | ????23 | ????57.7 | ????133 | ????23 | ?○ | ?○ | × | ?× | ?× |
| 12 | ????132 | ????50 | ????480 | ???4.0 | ????97.2 | ????0 | ????57.9 | ????98 | ????22 | ?○ | ?○ | × | ?× | ?× | |
| 13 | ????114 | ????- | ????- | ????- | ????- | ????0 | ????57.5 | ????136 | ????17 | ?○ | ?○ | × | ?× | ?× | |
| 14 | ????65 | ????50 | ????590 | ????4.0 | ????97.2 | ????8 | ????57.4 | ????132 | ????23 | ?○ | ?○ | × | ?× | ?× | |
| 15 | ????117 | ????50 | ????590 | ????0.7 | ????97.2 | ????19 | ????58.5 | ????131 | ????24 | ?○ | ?○ | × | ?× | ?× | |
Intermetallic compound: maximum length is 2.0 μ m or longer, and long-width ratio is 3 or bigger (crystal grain/10000 (μ m)
2)
Claims (6)
1, a kind of aluminium with excellent ductility, it is characterized in that, described aluminium for make by fine aluminium through continuous casting and rolling material, and maximum length is equal to or greater than 2.0 microns and long-width ratio and is equal to or greater than 3 intermetallic compound base and is distributed in the metal construction in the ratio that the plate surface is observed to be equal to or greater than 30 crystal grain/10000 square microns.
2, a kind of aluminium with excellent ductility is characterized in that, process continuous casting and the rolling material of described aluminium for making by fine aluminium, and the tensile strength of described aluminium is that 100-130MPa and specific conductivity are equal to or greater than 58%IACS.
3, a kind of aluminium with excellent ductility, it is characterized in that, process continuous casting and the rolling material of described aluminium for making by fine aluminium, and maximum length is equal to or greater than 2.0 microns and long-width ratio and is equal to or greater than 3 intermetallic compound base and is distributed in the metal construction in the ratio that the plate surface is observed to be equal to or greater than 30 crystal grain/10000 square microns, and the tensile strength of described aluminium is that 100-130MPa and specific conductivity are equal to or greater than 58%IACS.
4, a kind of manufacture method with aluminium of excellent ductility, it is characterized in that, to make by fine aluminium through continuous casting and rolling material at rolling draft be carry out under the condition of 30-70% cold rolling, the high temperature that equals under 500-640 ℃ of condition then or be longer than 1 hour is separated out processing, carry out cold rollingly then, and under 220-300 ℃ of condition, carry out final annealing then.
5, the manufacture method with aluminium of excellent ductility according to claim 4 is characterized in that, is equal to or greater than in speed of cooling under 70 ℃/second the condition to cast through continuous casting and rolling material described.
6, according to claim 4 or 5 described manufacture method, it is characterized in that the rolling draft after high temperature is separated out processing is equal to or greater than 90% with aluminium of excellent ductility.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004050076A JP4257736B2 (en) | 2004-02-25 | 2004-02-25 | Aluminum continuous cast and rolled plate with excellent ductility |
| JP50078/2004 | 2004-02-25 | ||
| JP50076/2004 | 2004-02-25 | ||
| JP2004050078 | 2004-02-25 | ||
| JP214717/2004 | 2004-07-22 | ||
| JP2004214717 | 2004-07-22 | ||
| JP2004219112A JP4447982B2 (en) | 2004-02-25 | 2004-07-27 | Aluminum material with excellent ductility |
| JP219112/2004 | 2004-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1661122A true CN1661122A (en) | 2005-08-31 |
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ID=35010659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510051689 Withdrawn CN1661122A (en) | 2004-02-25 | 2005-02-25 | Aluminous materials having excellent ductility and mfg. method for same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1661122A (en) |
| MY (1) | MY170612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360249C (en) * | 2006-06-30 | 2008-01-09 | 郑州铝业股份有限公司 | Short process production technology of ultrathin aluminium foil |
-
2005
- 2005-02-23 MY MYPI20050689A patent/MY170612A/en unknown
- 2005-02-25 CN CN 200510051689 patent/CN1661122A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360249C (en) * | 2006-06-30 | 2008-01-09 | 郑州铝业股份有限公司 | Short process production technology of ultrathin aluminium foil |
Also Published As
| Publication number | Publication date |
|---|---|
| MY170612A (en) | 2019-08-21 |
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Application publication date: 20050831 |