CN105537870A - Production method of 5052 aluminum alloy tank cover base material - Google Patents
Production method of 5052 aluminum alloy tank cover base material Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a production method of a 5052 aluminum alloy tank cover base material. The production method of the 5052 aluminum alloy tank cover base material comprises the steps of melting and casting, sawing, surface milling, soaking, (1+4) hot continuous rolling, three-rack cold continuous rolling, cut edge cleaning, and single-rack cold rolling. By the adoption of the production method, it is guaranteed that the mechanical property of the 5052 aluminum alloy tank cover base material is stable and qualified; in addition, the production process is shortened, and the production efficiency is improved.
Description
Technical field
The present invention relates to aluminium alloy and manufacture field, specifically relate to a kind of production method of 5052 aluminium alloy cover material base materials.
Background technology
Cover material 5052 and 5182 alloys, 5052 alloys magnesium content are low, are early stage a kind of alloys, shaped in the later stage twenties 20th century.Current 5052 aluminium alloy can cover materials are suitable for that cap-type is extensive, and thickness mostly is 0.22 ~ 0.27mm, for without the beverage closure of interior pressure and food lid, and the beer bottle lid that 5182 are used for interior pressure.In pop can is produced, reducing sheet thickness to greatest extent, improve extension property and the intensity of product, improve the utilization rate of material, reduce production cost, is the target that lid industry processed is pursued.Current 5052 alloy cover material thickness mostly are 0.22mm, 0.238mm, 0.24mm, 0.244mm, 0.25mm, 0.253mm, 0.26mm, 0.265mm, 0.27mm, along with cover base material thickness is thinning, just propose requirements at the higher level to the mechanical property of base material; Domestic lid industry development processed simultaneously, the demand of base material increases, and also claims to the delivery of cargo cycle.In current cover material base material is produced in enormous quantities, the cycle reaches 18 ~ 25 days, main because cover material substrate manufacturing process route is longer.
The production procedure of 5052 traditional alloy cover material base materials is: founding → sawing → milling face → soaking → (1+4) hot continuous rolling → single stand cold mill 1 passage → single stand cold mill 2 passage → middle trimming → single stand cold mill 3 passages → single stand cold mill 4 passages → stretch bending rectifys → coating → finished product shearing; Aluminium alloy is cold rolling point of four-pass rolling, and in the operation of rolling, not only consumes time is long, inefficiency, and adds machine number of times, also just adds the probability that defect of damaging produces; Simultaneously owing to repeatedly getting rid of except rolling tailing in cold-rolled process, waste of material is caused to also reduce finished product rate.
Summary of the invention
The object of the invention is for prior art Problems existing, a kind of 5052 aluminium alloy cover material base material and production methods thereof are provided.
Above-mentioned purpose is realized by following proposal:
A production method for 5052 aluminium alloy cover material base materials, it is characterized in that, described method comprises: melting, refining, casting, sawing, milling face, soaking, (1+4) hot continuous rolling, three frame cold continuous rollings, cleaning trimming, single stand cold mill.
According to above-mentioned production method, it is characterized in that, smelting temperature: 720 ~ 760 DEG C, refining temperature: 740 ~ 780 DEG C, casting temperature 690 ~ 710 DEG C.
According to above-mentioned production method, it is characterized in that, when it is characterized in that ingot casting soaking, ingot casting temperature: 470 ~ 490 DEG C; Ingot casting temperature retention time: 2 ~ 3 hours.
According to above-mentioned production method, it is characterized in that, it is characterized in that Hot Strip Rolling uses 1+4 hot continuous rolling, first use reversing rougher rolling 21 ~ 25 passage, ingot casting is processed into slab.Slab is sheared after material removal head through stub bar, re-uses 4 frame continuous hot-rolling mill rollings, hot rolling blank exit thickness: 2.5 ~ 3.5mm; Hot rolling finishing temperature: 320 ~ 350 DEG C.
According to above-mentioned production method, it is characterized in that, the concrete steps of described three frame cold continuous rollings and single stand cold mill are: be that the hot rolling blank of 2.5 ~ 3.5mm is rolled to through three frame cold continuous rolling a time the semi-finished product that thickness is 0.6 ~ 0.75mm by thickness, semi-finished product after cleaning trimming, then are rolled to through three frame cold continuous rolling a time the finished product that thickness is 0.22 ~ 0.27mm.
According to above-mentioned production method, it is characterized in that, the concrete steps of described three frame cold continuous rollings and single stand cold mill are: be that the hot rolling blank of 2.5 ~ 3.5mm is rolled to through three frame cold continuous rolling a time the semi-finished product that thickness is 0.6 ~ 0.75mm by thickness, semi-finished product after cleaning trimming, then are rolled to through single stand cold mill two passage the finished product that thickness is 0.22 ~ 0.27mm.
According to above-mentioned production method, it is characterized in that, cleaning trimming re-uses deionized water and carries out rinsing after using alkali lye to carry out degreasing, decontamination process to product surface.
According to above-mentioned production method, it is characterized in that, three frame cold continuous rolling mill speed >=900m/min; Three frame cold continuous rolling product outlet temperature: 80 ~ 120 DEG C.
According to above-mentioned production method, it is characterized in that, three frame cold continuous rollings use full oil base ROLLING OIL as cooling-lubricant.
Beneficial effect of the present invention:
1) adopt three frame cold continuous rollings to shorten the production operation time, enhance productivity.And because cold deformation is extremely short for turnaround time, almost do not reply sclerosis, so it is fewer than identical single stand cold mill three passes power consumption to produce actual energy consumption.
2), when adopting three frame cold continuous rollings that single chassis can be avoided to produce, repeatedly getting rid of except expecting end to end, reducing waste of material, improve yield rate.
3) adopt three frame cold continuous rollings to decrease machine number of times, compared with single chassis, decrease product stream when producing under equal conditions and turn over the probability be bruised in journey.
4) three frame cold continuous rollings have employed full oil base ROLLING OIL as cooling-lubricant, compare the product using the cold rolling mill equipment of oil-water mixture to produce, greatly reduce the probability that corrosion appears in product, it also avoid because oil mixing with water is more unbalance than row or be separated the insufficient lubrication thoroughly do not caused simultaneously, cause product surface aberration problem.
Detailed description of the invention
The production method of 5052 aluminium alloy cover material base materials of the present invention comprises: melting, refining, casting, sawing, milling face, soaking, (1+4) hot continuous rolling, three frame cold continuous rollings, cleaning trimming, single stand cold mill.Smelting temperature: 720 ~ 760 DEG C, refining temperature: 740 ~ 780 DEG C, casting temperature 690 ~ 710 DEG C.During ingot casting soaking, ingot casting temperature: 470 ~ 490 DEG C; Ingot casting temperature retention time: 2 ~ 3 hours.Hot Strip Rolling uses 1+4 hot continuous rolling, first uses reversing rougher rolling 21 ~ 25 passage, ingot casting is processed into slab.Slab is sheared after material removal head through stub bar, re-uses 4 frame continuous hot-rolling mill rollings, hot rolling blank exit thickness: 2.5 ~ 3.5mm; Hot rolling finishing temperature: 320 ~ 350 DEG C.Cold rollingly take optional two schemes, wherein scheme one: be that the hot rolling blank of 2.5 ~ 3.5mm is rolled to through three frame cold continuous rolling a time the semi-finished product that thickness is 0.6 ~ 0.75mm by thickness, semi-finished product after cleaning trimming, then are rolled to through three frame cold continuous rolling a time the finished product that thickness is 0.22 ~ 0.27mm.Scheme two: be that the hot rolling blank of 2.5 ~ 3.5mm is rolled to through three frame cold continuous rolling a time the semi-finished product that thickness is 0.6 ~ 0.75mm by thickness, semi-finished product after cleaning trimming, then are rolled to through single stand cold mill two passage the finished product that thickness is 0.22 ~ 0.27mm.Three frame cold continuous rolling mill speed >=900m/min; Three frame cold continuous rolling product outlet temperature: 80 ~ 120 DEG C.Three frame cold continuous rollings use full oil base ROLLING OIL as cooling-lubricant.
Cleaning trimming re-uses deionized water and carries out rinsing after using alkali lye to carry out degreasing, decontamination process to product surface.
Below in conjunction with specific embodiment, describe the present invention in detail.
Embodiment 1
The alloy state of 5052 aluminium alloy cover material base materials: 5052/H19 described in the present embodiment, finished product thickness: 0.22mm, its production procedure comprises: founding → sawing → milling face → soaking → (1+4) hot continuous rolling → tri-frame cold continuous rolling a time → cleaning trimming → tri-frame cold continuous rolling a time → stretch bending rectifys → coating → finished product shearing.
1) founding: aluminium Hydrochemical Composition: Si:0.109%, Fe:0.304%, Cu:0.015%, Mn:0.085%, Mg:2.512%, Cr:0.203%, Zn:0.008%, other single impurity≤0.03%, total≤0.15% after founding, all the other are Al, smelting temperature: 755 ~ 760 DEG C, refining temperature: 776 ~ 780 DEG C, casting temperature: 708 ~ 710 DEG C.
2) soaking: ingot casting temperature 490 DEG C, temperature retention time: 2 hours.
3) (1+4) hot continuous rolling: use 1+4 hot continuous rolling, roughing 21 passage, then through 4 frame tandem mill rollings, coiled material exit thickness 2.5mm, outlet temperature: 320 DEG C.
4) three frame cold continuous rollings: use three frame cold continuous rollings hot rolling blank to be rolled to the semi-finished product of 0.60mm from the coiled material that thickness is 2.5mm, cold rolling pass distributes: 2.5 → 1.3 (48%) → 0.85 (34.6%) → 0.60 (29.4%), cold rolling semi-finished product are through trimming, caustic dip, after removing surperficial grease, re-use three frame cold continuous rollings and semi-finished product coiled material is rolled to 0.22mm from thickness 0.60mm, cold continuous rolling distributes passage 0.60 → 0.4 (38.5%) → 0.28 (30%) → 0.22 (21.4%).Cold continuous rolling mill speed: 900m/min, cold rolling outlet temperature 80 DEG C, cold rolling general working rate: 91.2%.
Stretch bending is rectified: the finished product after cold rolling exists the defect such as wave and warpage, when coating procedure is produced, has requirement to plate shape.There are the defects such as limit wave, middle wave can affect surperficial coating quality (applying uneven, holiday), by stretch bending-straightening machine, production board shape repaired, balanced material internal residual stress, control wavelength, wave height, longitudinal warpage.
Coating: through degreasing agent cleaning products surface, remove surperficial grease, through trivalent chromium passivation, and after rinsing removal surface residual liquid, through hot air knife drying remained on surface moisture, be coated with DOS oil machine through electrostatic, under electric field action, vaporific DOS oil suction type formed one deck continuous print DOS oil film.
The end properties of the 5052 cover material base materials adopting embodiment 1 to produce is as shown in table 1.
Table 1 adopts embodiment 1 to produce the end properties of the 5052 aluminium alloy cover material obtained.
Contrast experiment's example 1
The alloy state of 5052 aluminium alloy cover material base materials: 5052/H19 described in this experimental example, finished product thickness: 0.22mm, its production procedure comprises: founding → sawing → milling face → soaking → (1+4) hot continuous rolling → single stand cold mill a time → single stand cold mill two passage → cleaning trimming → single stand cold mill three passages → single stand cold mill four-pass → stretch bending rectifys → coating → finished product shearing.
1) founding: aluminium Hydrochemical Composition: Si:0.097%, Fe:0.309%, Cu:0.02%, Mn:0.088%, Mg:2.528%, Cr:0.207%, Zn:0.008%, other single impurity≤0.03%, total≤0.15% after founding, all the other are Al, smelting temperature: 755 ~ 760 DEG C, refining temperature: 776 ~ 780 DEG C, casting temperature: 708 ~ 710 DEG C.
2) soaking: with embodiment 1.
3) (1+4) hot continuous rolling: with embodiment 1.
4) single stand cold mill: use single stand cold mill two passage that hot rolling blank is rolled to from the coiled material that thickness is 2.5mm the semi-finished product that thickness is 0.60mm, cold rolling pass distributes: 2.5 → 1.2 (52%) → 0.60 (50%), cold rolling semi-finished product are through trimming, caustic dip, after removing surperficial grease, re-use single stand cold mill two passage and semi-finished product coiled material is rolled to from thickness 0.60mm the finished product that thickness is 0.22mm, cold rolling distribution passage 0.60 → 0.36 (40%) → 0.22 (38.9%).Single chassis mill speed: 900m/min, cold rolling outlet temperature 80 DEG C, cold rolling general working rate: 91.2%.
Stretch bending is rectified: with experimental example 1.
Coating: with experimental example 1.
The end properties of the 5052 cover material base materials adopting contrast experiment's example 1 to produce is as shown in table 2.
Table 2 adopts contrast experiment's example 1 to produce the end properties of the 5052 aluminium alloy cover material obtained.
Compare with comparative experimental example 1, the maximum difference of embodiment 1 is cold rolling process.Embodiment 1 and contrast experiment's example 1 terminate to consume at that time from founding to hot-rolled process, energy consumption and yield rate approximately consistent, the coil weight after hot-rolled process is 23530Kg, and thickness is 2.5mm, and width is 1760mm.Table 3 be embodiment 1 with contrast experiment's example 1 cold rolling process time consume and cold rolling rear yield rate correction data.
Table 3 embodiment 1 and contrast experiment's example 1 cold rolling process time consume and cold rolling rear yield rate contrasts
Embodiment 2
The alloy state of 5052 aluminium alloy cover material base materials: 5052/H19 described in the present embodiment, finished product thickness: 0.265mm, its production procedure comprises: founding → sawing → milling face → soaking → (1+4) hot continuous rolling → tri-frame cold continuous rolling a time → cleaning trimming → single chassis a time → single chassis two passages → stretch bending rectifys → coating → finished product shearing.
1) founding: aluminium Hydrochemical Composition: Si:0.1007%, Fe:0.3144%, Cu:0.0211%, Mn:0.0728%, Mg:2.5659%, Cr:0.1962%, Zn:0.0071%, other single impurity≤0.03%, total≤0.15% after founding, all the other are Al, smelting temperature: 722 ~ 739 DEG C, refining temperature: 740 ~ 745 DEG C, casting temperature: 690 ~ 693 DEG C.
2) soaking: ingot casting temperature 470 DEG C, temperature retention time: 3 hours.
3) (1+4) hot continuous rolling: use 1+4 hot continuous rolling, roughing 21 passage, then through 4 frame tandem mill rollings, coiled material exit thickness 3.0mm, outlet temperature: 323 DEG C.
4) three frame cold continuous rollings: use three frame cold continuous rollings hot rolling blank to be rolled to the semi-finished product of 0.65mm from the coiled material that thickness is 2.5mm, cold rolling pass distributes: 3.0 → 1.5 (50%) → 0.9 (40%) → 0.65 (27.8%), cold rolling semi-finished product are through trimming, caustic dip, after removing surperficial grease, re-use single stand cold mill and semi-finished product coiled material is rolled to 0.265mm from thickness 0.65mm, cold rolling distribution passage 0.65 → 0.38 (41.5%) → 0.265 (30.3%).Cold continuous rolling mill speed: 1000m/min, cold rolling outlet temperature 96.5 DEG C, cold rolling general working rate: 91.2%.
Stretch bending is rectified: with example 1.
Coating: with example 1.
The end properties of the 5052 cover material base materials adopting embodiment 2 to produce is as shown in table 4.
Table 4 adopts embodiment 2 to produce the end properties of the 5052 aluminium alloy cover material obtained.
Embodiment 3
The alloy state of 5052 aluminium alloy cover material base materials: 5052/H19 described in the present embodiment, finished product thickness: 0.27mm, its production procedure comprises: founding → sawing → milling face → soaking → (1+4) hot continuous rolling → tri-frame cold continuous rolling a time → cleaning trimming → single chassis a time → single chassis two passages → stretch bending rectifys → coating → finished product shearing.
1) founding: aluminium Hydrochemical Composition: Si:0.1109%, Fe:0.3265%, Cu:0.0217%, Mn:0.0803%, Mg:2.4946%, Cr:0.1992%, Zn:0.0087%, other single impurity≤0.03%, total≤0.15% after founding, all the other are Al, smelting temperature: 720 ~ 725 DEG C, refining temperature: 740 ~ 745 DEG C, casting temperature: 690 ~ 693 DEG C.
2) soaking: ingot casting temperature 480 DEG C, temperature retention time: 3 hours.
3) (1+4) hot continuous rolling: use 1+4 hot continuous rolling, roughing 25 passage, then through 4 frame tandem mill rollings, coiled material exit thickness 3.5mm, outlet temperature: 350 DEG C.
4) three frame cold continuous rollings: use three frame cold continuous rollings hot rolling blank to be rolled to the semi-finished product of 0.75mm from the coiled material that thickness is 3.5mm, cold rolling pass distributes: 3.5 → 1.8 (48.6%) → 1.1 (38.9%) → 0.75 (31.8%), cold rolling semi-finished product are through trimming, caustic dip, after removing surperficial grease, re-use single stand cold mill and semi-finished product coiled material is rolled to 0.27mm from thickness 0.75mm, cold rolling distribution passage 0.75 → 0.40 (46.7%) → 0.27 (32.5%).Cold continuous rolling mill speed: 1000m/min, cold rolling outlet temperature 120 DEG C, cold rolling general working rate: 92.3%.
Stretch bending is rectified: with example 1.
Coating: with example 1.
The end properties of the 5052 cover material base materials adopting embodiment 2 to produce is as shown in table 5.
Table 5 adopts embodiment 2 to produce the end properties of the 5052 aluminium alloy cover material obtained.
Can find out from embodiment 1, embodiment 2, embodiment 3 the 5052 aluminium alloy cover material produced with three frame cold continuous rollings with produce with 6 roller single stand cold mills mechanical property extremely surface quality in same level, all reach professional standard, and meet the instructions for use of client, and produce with three frame cold continuous rollings and improve a lot in consuming time and yield rate, can produce to enterprise and bring larger economic benefit.
Above-described embodiment only have expressed several embodiment of the present invention; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; it should be noted that; for the person of ordinary skill of the art; without departing from the inventive concept of the premise, can also make some distortion and improvement, these are all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a production method for 5052 aluminium alloy cover material base materials, it is characterized in that, described method comprises: melting, refining, casting, sawing, milling face, soaking, (1+4) hot continuous rolling, three frame cold continuous rollings, cleaning trimming, single stand cold mill.
2. production method according to claim 1, is characterized in that, smelting temperature: 720 ~ 760 DEG C, refining temperature: 740 ~ 780 DEG C, casting temperature 690 ~ 710 DEG C.
3. production method according to claim 1, is characterized in that, when it is characterized in that ingot casting soaking, and ingot casting temperature: 470 ~ 490 DEG C; Ingot casting temperature retention time: 2 ~ 3 hours.
4. production method according to claim 1, is characterized in that, it is characterized in that Hot Strip Rolling uses 1+4 hot continuous rolling, first uses reversing rougher rolling 21 ~ 25 passage, ingot casting is processed into slab.Slab is sheared after material removal head through stub bar, re-uses 4 frame continuous hot-rolling mill rollings, hot rolling blank exit thickness: 2.5 ~ 3.5mm; Hot rolling finishing temperature: 320 ~ 350 DEG C.
5. production method according to claim 1, it is characterized in that, the concrete steps of described three frame cold continuous rollings and single stand cold mill are: be that the hot rolling blank of 2.5 ~ 3.5mm is rolled to through three frame cold continuous rolling a time the semi-finished product that thickness is 0.6 ~ 0.75mm by thickness, semi-finished product after cleaning trimming, then are rolled to through three frame cold continuous rolling a time the finished product that thickness is 0.22 ~ 0.27mm.
6. production method according to claim 1, it is characterized in that, the concrete steps of described three frame cold continuous rollings and single stand cold mill are: be that the hot rolling blank of 2.5 ~ 3.5mm is rolled to through three frame cold continuous rolling a time the semi-finished product that thickness is 0.6 ~ 0.75mm by thickness, semi-finished product after cleaning trimming, then are rolled to through single stand cold mill two passage the finished product that thickness is 0.22 ~ 0.27mm.
7. production method according to claim 1, is characterized in that, cleaning trimming re-uses deionized water and carries out rinsing after using alkali lye to carry out degreasing, decontamination process to product surface.
8. production method according to claim 1, is characterized in that, three frame cold continuous rolling mill speed >=900m/min; Three frame cold continuous rolling product outlet temperature: 80 ~ 120 DEG C.
9. production method according to claim 1, is characterized in that, three frame cold continuous rollings use full oil base ROLLING OIL as cooling-lubricant.
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| US20210292878A1 (en) * | 2015-12-25 | 2021-09-23 | Uacj Corporation | Aluminum alloy sheet for can body, and process for producing the same |
| CN106350714A (en) * | 2016-08-27 | 2017-01-25 | 河南明泰铝业股份有限公司 | High-end anodic oxidation aluminum strip for 3C (computer, communication and consumer electronic) industry and production method of high-end anodic oxidation aluminum strip |
| CN106350714B (en) * | 2016-08-27 | 2018-03-16 | 河南明泰铝业股份有限公司 | A kind of 3C industries high-end anodic oxidation aluminium strip and its production method |
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| CN109022938A (en) * | 2018-09-26 | 2018-12-18 | 广东华劲金属型材有限公司 | A kind of production of aluminum alloy continuous casting tandem rolling base and heat treatment method |
| CN110216166A (en) * | 2019-06-21 | 2019-09-10 | 天津忠旺铝业有限公司 | A kind of production method of television stand aluminium alloy strips |
| CN112337969A (en) * | 2020-10-22 | 2021-02-09 | 河南中孚高精铝材有限公司 | Short-process rolling method for cold-rolled 5052 alloy tank cover material |
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