CN104294194B - A kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers - Google Patents
A kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers Download PDFInfo
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- CN104294194B CN104294194B CN201310296432.7A CN201310296432A CN104294194B CN 104294194 B CN104294194 B CN 104294194B CN 201310296432 A CN201310296432 A CN 201310296432A CN 104294194 B CN104294194 B CN 104294194B
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- 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
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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Abstract
The present invention is a kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers, readjust during 3104 aluminium alloy smeltings and optimize the mass fraction that each chemical composition is shared in this aluminium alloy stock, pass through refine, crystal grain refines, degasification, filter, casting, sawing, milling face, homogenization heats, hot rolling, cold rolling, clean trimming, finished product perfect recrystallization is annealed, the normal process steps such as test package process the aluminium alloy strips obtained, the aluminium alloy strips that its more conventional chemical composition of Erichsen number index and subsequent treatment process obtain improves a lot, shortcoming easy to crack after overcoming the 3104 aluminium alloy strips punching presses that routine chemical components produces, and then improve the deep drawability of 3104 alloy materials.
Description
Technical field
The invention belongs to aluminum alloy materials technical field, more particularly to a kind of method improving 3104 aluminium alloy strips Erichsen numbers.
Background technology
Good deep drawability is to ensure that 3104 aluminium alloy strips are for the smooth key such as " LED television backboard, capacitor case, lamp holder " electronic apparatus parts punch forming.
AEG-process, is named again Erichsen test, is a kind of Sheet Metal Forming Technology performance test, is used to weigh the test method of metal material deep drawability.The result of the test Erichsen number (IE) that AEG-process obtains is the biggest, i.e. shows that the deep drawability of material is the best.
At present, because Erichsen number is the most up to standard, causing 3104 aluminium alloy strips punch formings to rupture is a great problem of domestic Aluminum sheets manufacturing enterprise.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers, the aluminium alloy strips that its more conventional chemical composition of Erichsen number index and subsequent treatment process obtain improves a lot.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
The present invention is a kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers, and described manufacture method comprises the steps:
(1) dispensing: use the material of following percentage by weight carry out alloy proportion, i.e. Si be 0.17～0.25%, Fe be 0.35～0.45%, Cu be 0.15～0.2%, Mn be 0.85～0.95%, Mg be 1.15～1.25%, Zn for≤0.1%, RE (rare earth element) be 0.005～0.02%, Ti be≤0.1%, surplus be Al；
(2) melting: smelting temperature 700 ~ 740 DEG C, and use coverture；
(3) refine: use chlorine and argon that ingot casting carries out refine, refining temperature 720 ~ 740 DEG C；
(4) crystal grain refinement: use grain refiner Al-5Ti-0.2B silk to carry out ingot casting crystal grain refinement, titanium silk addition 1.0kg/tAl；
(5) degasification: use depassing unit to carry out the online degasification of melt；
(6) filter: use 30PPi+40PPi twin-stage ceramic filter plate to filter；
(7) casting: carry out according to casting temperature 680 ~ 725 DEG C, casting speed 45 ~ 55mm/min, hydraulic pressure 0.1 ~ 0.2MPa, the technique of water temperature≤30 DEG C, obtain meeting the rectangle ingot of inner quality standard；
(8) sawing: sawing length 200mm bottom ingot casting, gate part sawing length 100mm；
(9) milling face: ingot casting big facing cut face amount is 8 ~ 12mm/ face, milling face, side is measured is 4 ~ 7mm/ face；
(10) homogenization heating: furnace gas constant temperature 610 DEG C, is incubated 16 ~ 30 hours, ingot casting tapping temperature 500 ~ 535 DEG C；
(11) hot rolling: the ingot casting that thickness is 420 ~ 620mm that (1) ~ (10) are obtained, through 19 ~ 31 passages of hot-rolling mill, it is rolled into the aluminum volume that thickness is 2.5 ~ 7.0mm, finishing temperature 330 ~ 345 DEG C；
(12) cold rolling: the hot rolling blank aluminum that thickness the is 2.5 ~ 7.0mm volume that (11) are obtained, through 5 ~ 9 passages, it is cold-rolled to into the cold rolling aluminum volume that thickness is 0.26 ~ 1.2mm；
(13) trimming is cleaned: the cold rolling aluminum volume (12) obtained is carried out trimming on 2450mm stretch bending-straightening machine, uses high pressure, high-temperature water to clean up the greasy dirt on aluminium strip；
(14) perfect recrystallization annealing: the aluminum volume (13) obtained carries out perfect recrystallization annealing in coil annealing stove, and annealing process is furnace gas temperature 350 ~ 380 DEG C, temperature retention time 9 ~ 20h；
(15) test package: carry out AEG-process, detects band Erichsen number.
The distinguishing feature of the present invention is: the present invention is a kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers, the aluminium alloy strips that its more conventional chemical composition of Erichsen number index and subsequent treatment process obtain improves a lot, Erichsen number is significantly superior, shortcoming easy to crack after overcoming the 3104 aluminium alloy strips punching presses that routine chemical components produces, and then improve the deep drawability of 3104 alloy materials.
Detailed description of the invention
In order to deepen the understanding of the present invention, being described in further detail the present invention below in conjunction with embodiment, this embodiment is only used for explaining the present invention, does not constitute protection scope of the present invention and limits.
As shown in the Examples, the present invention is a kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers, and described manufacture method comprises the steps:
(1) dispensing: use the material of following percentage by weight carry out alloy proportion, i.e. Si be 0.17～0.25%, Fe be 0.35～0.45%, Cu be 0.15～0.2%, Mn be 0.85～0.95%, Mg be 1.15～1.25%, Zn for≤0.1%, RE (rare earth element) be 0.005～0.02%, Ti be≤0.1%, surplus be Al；
Embodiment one, 3104 its alloy proportion of aluminium alloy strips, as follows:
Si is 0.25%, Fe is 0.45%, Cu is 0.2%, Mn is 0.95%, Mg is 1.25%, Zn is 0.1%, RE (rare earth element) is 0.02%, Ti is 0.1%, surplus is Al；
Embodiment two, 3104 its alloy proportion of aluminium alloy strips, as follows:
Si is 0.17%, Fe is 0.35%, Cu is 0.15%, Mn is 0.85%, Mg is 1.15%, Zn is 0.1%, RE (rare earth element) is 0.005%, Ti is 0.1%, surplus is Al；
Embodiment three, 3104 its alloy proportion of aluminium alloy strips, as follows:
Si is 0.2%, Fe is 0.4%, Cu is 0.18%, Mn is 0.9%, Mg is 1.2%, Zn is 0.1%, RE (rare earth element) is 0.012%, Ti is 0.1%, surplus is Al；
(2) melting: smelting temperature 700 ~ 740 DEG C, and use coverture；
(3) refine: use chlorine and argon that ingot casting carries out refine, refining temperature 720 ~ 740 DEG C；
(4) crystal grain refinement: use grain refiner Al-5Ti-0.2B silk to carry out ingot casting crystal grain refinement, titanium silk addition 1.0kg/tAl；
(5) degasification: use depassing unit to carry out the online degasification of melt；
(6) filter: use 30PPi+40PPi twin-stage ceramic filter plate to filter；
(7) casting: carry out according to casting temperature 680 ~ 725 DEG C, casting speed 45 ~ 55mm/min, hydraulic pressure 0.1 ~ 0.2MPa, the technique of water temperature≤30 DEG C, obtain meeting the rectangle ingot of inner quality standard；
(8) sawing: sawing length 200mm bottom ingot casting, gate part sawing length 100mm；
(9) milling face: ingot casting big facing cut face amount is 8 ~ 12mm/ face, milling face, side is measured is 4 ~ 7mm/ face；
(10) homogenization heating: furnace gas constant temperature 610 DEG C, is incubated 16 ~ 30 hours, ingot casting tapping temperature 500 ~ 535 DEG C；
(11) hot rolling: the ingot casting that thickness is 420 ~ 620mm obtained (1) ~ (10), through 19 ~ 31 passages of hot-rolling mill, is rolled into the aluminum volume that thickness is 2.5 ~ 7.0mm, finishing temperature 330 ~ 345 DEG C；
(12) cold rolling: the hot rolling blank aluminum that thickness the is 2.5 ~ 7.0mm volume that (11) are obtained, through 5 ~ 9 passages, it is cold-rolled to into the cold rolling aluminum volume that thickness is 0.26 ~ 1.2mm；
(13) trimming is cleaned: the cold rolling aluminum volume (12) obtained is carried out trimming on 2450mm stretch bending-straightening machine, uses high pressure, high-temperature water to clean up the greasy dirt on aluminium strip；
(14) perfect recrystallization annealing: the aluminum volume (13) obtained carries out perfect recrystallization annealing in coil annealing stove, and annealing process is furnace gas temperature 350 ~ 380 DEG C, temperature retention time 9 ~ 20h；
(15) inspection is according to " GB/T
4156-2007 metal sheet and strip Erichsen test " carry out, testing result Erichsen number IE=9.0 ~ 10mm, and conventional method produces the Erichsen number IE=7.5 ~ 8.5mm of the 3104 aluminium alloy strips detections obtained, the present invention produces, than conventional method, the digital average raising 1.5mm that detection obtains, and i.e. improves 15 ~ 20%.
From above-mentioned testing result, using 3104 aluminium alloy strips of the production of the present invention, Erichsen number is significantly superior, and the deep drawability of material is more preferable.
Claims (1)
1. the manufacture method improving 3104 aluminium alloy strips Erichsen numbers, it is characterised in that: described manufacture method comprises the steps:
(1) dispensing: use the material of following percentage by weight carry out alloy proportion, i.e. Si be 0.17～0.25%, Fe be 0.35～0.45%, Cu be 0.15～0.2%, Mn be 0.85～0.95%, Mg be 1.15～1.25%, Zn for≤0.1%, RE (rare earth element) be 0.005～0.02%, Ti be≤0.1%, surplus be Al；
(2) melting: smelting temperature 700 ~ 740 DEG C, and use coverture；
(3) refine: use chlorine and argon that ingot casting carries out refine, refining temperature 720 ~ 740 DEG C；
(4) crystal grain refinement: use grain refiner Al-5Ti-0.2B silk to carry out ingot casting crystal grain refinement, titanium silk addition 1.0kg/tAl；
(5) degasification: use depassing unit to carry out the online degasification of melt；
(6) filter: use 30PPi+40PPi twin-stage ceramic filter plate to filter；
(7) casting: carry out according to casting temperature 680 ~ 725 DEG C, casting speed 45 ~ 55mm/min, hydraulic pressure 0.1 ~ 0.2MPa, the technique of water temperature≤30 DEG C, obtain meeting the rectangle ingot of inner quality standard；
(8) sawing: sawing length 200mm bottom ingot casting, gate part sawing length 100mm；
(9) milling face: ingot casting big facing cut face amount is 8 ~ 12mm/ face, milling face, side is measured is 4 ~ 7mm/ face；
(10) homogenization heating: furnace gas constant temperature 610 DEG C, is incubated 16 ~ 30 hours, ingot casting tapping temperature 500 ~ 535 DEG C；
(11) hot rolling: the ingot casting that thickness is 420 ~ 620mm obtained (1) ~ (10), through 19 ~ 31 passages of hot-rolling mill, is rolled into the aluminum volume that thickness is 2.5 ~ 7.0mm, finishing temperature 330 ~ 345 DEG C；
(12) cold rolling: the hot rolling blank aluminum that thickness is 2.5 ~ 7.0mm that (11) are obtained volume, through 5 ~ 9 passages, cold rolling make the cold rolling aluminum volume that thickness is 0.26 ~ 1.2mm；
(13) trimming is cleaned: the cold rolling aluminum volume (12) obtained is carried out trimming on 2450mm stretch bending-straightening machine, uses high pressure, high-temperature water to clean up the greasy dirt on aluminium strip；
(14) perfect recrystallization annealing: the aluminum volume (13) obtained carries out perfect recrystallization annealing in coil annealing stove, and annealing process is furnace gas temperature 350 ~ 380 DEG C, temperature retention time 9 ~ 20h；
(15) test package: carry out AEG-process, detects band Erichsen number.
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| CN201310296432.7A CN104294194B (en) | 2013-07-16 | 2013-07-16 | A kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers |
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| CN104294194B true CN104294194B (en) | 2016-09-28 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481764A (en) * | 2009-02-12 | 2009-07-15 | 郑州明泰实业有限公司 | Aluminum alloy rolled plate and producing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481764A (en) * | 2009-02-12 | 2009-07-15 | 郑州明泰实业有限公司 | Aluminum alloy rolled plate and producing method thereof |
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