CN100586640C - Method for directly casting and rolling electrolytic aluminium liquid for producing aluminum plate base for PS plate - Google Patents
Method for directly casting and rolling electrolytic aluminium liquid for producing aluminum plate base for PS plate Download PDFInfo
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- CN100586640C CN100586640C CN200810140553A CN200810140553A CN100586640C CN 100586640 C CN100586640 C CN 100586640C CN 200810140553 A CN200810140553 A CN 200810140553A CN 200810140553 A CN200810140553 A CN 200810140553A CN 100586640 C CN100586640 C CN 100586640C
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 149
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 239000007788 liquid Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005096 rolling process Methods 0.000 title claims abstract description 25
- 239000004411 aluminium Substances 0.000 title claims description 91
- 238000005266 casting Methods 0.000 title claims description 43
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 238000007670 refining Methods 0.000 claims abstract description 25
- 238000007872 degassing Methods 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- 230000003746 surface roughness Effects 0.000 claims description 17
- 238000005097 cold rolling Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 238000005098 hot rolling Methods 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Metal Rolling (AREA)
- Electrolytic Production Of Metals (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to a method for cast-rolling to produce aluminum substrates used in PS plates directly by electrolytic aluminum liquid; the main steps are as follows: electrolyzing the aluminumliquid under the high temperature, smelter hearth, adjusting element compositions, refining, conducting the furnace, adjusting the temperature to 740 DEG C to 750 DEG C, adding Al-Ti-B refiners to carry out the grain refinement, degassing, filtering, cast-rolling coils of strip, cool rolling, stretch bending and straightening, and producing finished products; various steps of the invention are synthesized to optimize technique parameters; the prepared aluminum substrates used in the PS plates is high in tensile strength and elongation, and the quality of the prepared aluminum substrates are better than that of similar products, thus omitting the remelting process when aluminum ingots are used, saving resources, reducing the production cost and increasing the economic and social benefits.
Description
Technical field
The present invention relates to the production method of a kind of PS version, be specifically related to a kind of by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation with aluminum plate foundation.
Background technology
Offset printing is the main mode of present age printing, the offset printing plate of today, no matter be traditional PS version, the still CTP version of release in recent years all is to be the pre-coating light sensitive plate of support with the aluminum plate foundation.The PS version is the abbreviation of pre-coating light sensitive plate, is the flat stamping version that can be used for printing down at any time that a kind of precoating has photosensitive layer, and coating non-silver-colored sensitization (heat) resin bed is made on the thick aluminum plate foundation of 0.15～0.50mm through forming fine and close Grains behind the surperficial electrolytic oxidation.The PS version has the resolution ratio height, repeatability is strong, writing is clear, be convenient to the automation Plate making printing, the economic benefit advantages of higher, is subjected to the great attention of countries in the world printing industry.Now, the PS of industrially developed country version consumption has accounted for 80%～90% of whole galley.
A few years ago, the aluminium of PS version production usefulness volume, China is dependence on import always, and is annual from the tens thousand of tons of national import aluminium volume such as Japan, Germany.In recent years, China's aluminium sheet processing industry development is very fast, while is owing to international aluminium valency rising steadily, each PS version manufacturer wishes to use the aluminium volume of domestic aluminum material factory production, but the aluminium sheet quality of producing except that several large enterprises such as southwestern Aluminum group companies was higher, the quality and the external product of domestic PS version base had very big difference.The quality stability of the aluminum substrate that domestic enterprise can provide, the assurance of specification and cost etc. all have a lot of weak points, especially be fit to the high-quality cold-reduced sheet that the PS version is produced, its output can't satisfy the needs of PS version industry, therefore most of PS version manufacturer mainly produces by external aluminium, insufficient raw material, greatly fettered the production of PS version, this also is indeterminable for many years problem.
Aluminum plate foundation accounts for about 70%～80% of all raw material cost in the PS version is produced, aluminum plate foundation is not only the support of PS version, and also the performance to the PS version plays important effect, and the quality of its quality can directly have influence on the quality and the production cost of PS version.Therefore, the PS version is studied with aluminum plate foundation, improved the cost of aluminum plate foundation quality, reduction aluminum plate foundation, all significant for the production cost that reduces import, reduction PS version manufacturing enterprise.
The PS version mainly contains two kinds with the production method of aluminum plate foundation at present: hot rolling slab is cold rolling again and cast-rolled block is cold rolling again, the production process of wherein hot rolling method is: aluminium ingot remelting-casting ingot blank-crop end-mill face-ingot blank heating-Re roughing-hot finishing-cold rolling-stretch-bending straightening-production board base, and the production process of casting and roll process is: aluminium ingot remelting-continuous casting and rolling-cold rolling-stretch-bending straightening-production board base.The shortcoming of hot rolling method be need crop end, mill face, heating, technological process is long, the cost height.Casting and roll process does not need crop end, need not mill face, has improved yield rate, need not heat, shortened technological process greatly, saved ingot blank heating and equipment of hot rolling, but the defective that casting and roll process exists has been to carry out remelting again to the aluminium ingot that electrolytic aluminium liquid is cast into, the waste resource, the production cost height.
Summary of the invention
The object of the present invention is to provide a kind of method of producing PS version usefulness aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid, the quality height of aluminum plate foundation, production cost is low.
For achieving the above object, the present invention is by the following technical solutions: a kind ofly produce the method for PS version with aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid, may further comprise the steps: (1) delivers to smelting furnace with high-temperature electrolysis aluminium liquid, add the aluminium ingot that accounts for aluminium liquid gross weight 20～30%, the control melt temperature is 740～760 ℃, the mass percent of adjusting each elemental composition in the melt is: Si:0.08～0.12%, Fe:0.3～0.35%, Cu:0.06～0.08%, Ti:0.01～0.03%, surplus are Al; (2) adopt pure nitrogen gas or pure argon to spray the refining agent refining in melt, stir, refining time is 8～10 minutes, leaves standstill then 15～25 minutes, removes the scum silica frost on aluminium liquid surface, imports and leaves standstill in the stove, and it is 740～750 ℃ that the interior temperature of stove is left standstill in control; (3) the aluminium liquid that will leave standstill in the stove is sent in the chute, and reverse adding Al-Ti-B silk carries out grain refinement, with pure nitrogen gas or pure argon aluminium liquid is carried out degassing processing then in degasification tank, adopts floamed ceramics filtrating piece that aluminium liquid is carried out filtration, purification after the degasification and handles; (4) aluminium liquid flows into the casting and rolling machine casting through preceding case then, and the surface roughness of control casting roller is 0.7～0.8 μ m, 680～700 ℃ of casting temperature, roll casting speed 800～1000mm/min, inflow temperature is 17～18 ℃ during cooling, and inlet pressure 0.3～0.4MPa, leaving water temperature are 22～25 ℃; (5) roll coil of strip material after the casting is sent into rolled by cold rolling machine, the surface roughness of control cold roll is 0.18～0.24 μ m, is cold-rolled to 0.27mm, cleans aligning through stretch bending-straightening machine then and makes strip flatness be not more than 3I, promptly gets PS version aluminum plate foundation finished product.
Passage in the described step (5) when cold rolling is assigned as: 6～7mm → 3.5～4mm → 2.0～2.4mm → 1.2～1.4mm → 0.72～0.82mm → 0.45～0.47mm → 0.27mm.
The addition of Al-Ti-B silk is 1.5～1.7 ‰ of an aluminium liquid weight in the described step (3).
Al-Ti-B silk ingredient mass percent is in the described step (3): Ti:4.75～6.05%, B:1～1.5%, Fe≤0.3%, Si≤0.2%, surplus are Al.
The rotating speed of the graphite rotator in the described step (3) in the degasification tank is 120～180r/min.
Refining agent is injection refining agent SY-PJ1 in the described step (2), and addition is 0.1～0.4% of an aluminium liquid weight.
The purity of pure argon and pure nitrogen gas is all greater than 99.999% in described step (2) and the step (3).
The present invention adopts high-temperature electrolysis aluminium liquid as the direct casting production of raw material PS version aluminum plate foundation, saved the process that electrolytic aluminium liquid is cast into aluminium ingot and then carries out remelting, because the hydrogen content in the electrolytic aluminium liquid is higher, and hydrogen content causes the aluminum plate foundation product of casting hole defect to occur when higher easily.The present invention utilize purity nitrogen gas blowout refining agent to the melt refining and in degasification tank to the melt degasification, in aluminum melt, form the bubble of a large amount of disperses, bubble fully contacts with aluminum melt in floating-upward process, gas in the aluminium liquid and field trash are taken to aluminium liquid surface, reach the purpose of degasification, slagging-off, make hydrogen content less than 0.11ml/ (100gAl), guaranteed the quality of aluminum plate foundation; Control appropriate C u content is because the Cu of trace helps the formation of Grains, and makes Grains even, but excessive Cu can accelerate the corrosion of PS version base, reduces pressrun; Control graphite rotator rotating speed be because rotating speed when too low number of bubbles few, be unfavorable for degasification, cause the hydrogen content height, the wearing and tearing of accelerating rotor caused secondary pollution to aluminium liquid when rotating speed was too fast, and rotating speed can cause too soon that aluminum melt splashes in the degasification tank, causes oxidative slagging; The surface roughness of the suitable casting roller of control during casting improves the quality of aluminum plate foundation, and this is that aluminium was leaked in casting easily when surface roughness was too small, also influenced normal riser because surface roughness is prone to black silk, underworld and wiping, scuffing defective when excessive; The surface roughness of controlling suitable cold roll when cold rolling black silk, underworld and wiping, scuffing defective and the rolling skidding of the too small appearance of surface roughness occur equally in order to guarantee the high-quality of aluminum plate foundation when avoiding surface roughness excessive; Control suitable cold rolling pass, guarantee that surface quality of products enhances productivity simultaneously, because pass reduction is prone to defectives such as crackle, wave when too big, pass reduction too hour influences production efficiency and product quality.Each step of the present invention integrates, and optimizes technological parameter, the prepared PS version tensile strength and the percentage elongation height of aluminum plate foundation, quality is better than like product, saves the process of remelting when using aluminium ingot, has saved resource, reduced production cost, economic benefit and social benefit height.
The specific embodiment
Embodiment 1: produce the method for PS version with aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid as described in the present invention, may further comprise the steps: (1) delivers to smelting furnace with 920 ℃ high-temperature electrolysis aluminium liquid, add the aluminium ingot that accounts for aluminium liquid gross weight 20%, the control melt temperature is 740 ℃, the mass percent of adjusting each elemental composition in the melt is: Si:0.1%, Fe:0.3%, Cu:0.06%, Ti:0.02%, and surplus is Al; (2) adopt purity in melt, to spray into injection refining agent SY-PJ1 refining greater than 99.999% pure nitrogen gas, the consumption of injection refining agent SY-PJ1 is 0.1% of an aluminium liquid weight, stir, refining time is 8 minutes, left standstill then 25 minutes, remove the scum silica frost on aluminium liquid surface, melt is imported leave standstill in the stove, it is 740 ℃ that the interior temperature of stove is left standstill in control; (3) the aluminium liquid that will leave standstill in the stove is sent in the chute, the Al-Ti-B silk that reverse adding accounts for aluminium liquid weight 1.5 ‰ carries out grain refinement, Al-Ti-B silk ingredient mass percent is: Ti:4.75%, B:1%, Fe:0.3%, Si:0.2%, Al:93.75%, in degasification tank, greater than 99.999% pure nitrogen gas aluminium liquid is carried out degassing processing then with purity, the rotating speed of graphite rotator is 120r/min in the control degasification tank, making the hydrogen content in the aluminium liquid is 0.11ml/ (100gAl), adopts floamed ceramics filtrating piece that aluminium liquid is carried out filtration, purification then and handles; (4) aluminium liquid flows into the casting and rolling machine casting through preceding case then, and the surface roughness of control casting roller is 0.7 μ m, 680 ℃ of casting temperature, and roll casting speed 800mm/min, the cooling inflow temperature is 17 ℃, inlet pressure 0.4MPa, leaving water temperature are 25 ℃; (5) roll coil of strip material after the casting is sent into rolled by cold rolling machine, the surface roughness of control cold roll is 0.18 μ m, cold rolling pass is assigned as: 6.8mm → 3.8mm → 2.2mm → 1.3mm → 0.75mm → 0.46mm → 0.27mm, making strip flatness through stretch bending-straightening machine cleaning aligning then is 3I, promptly gets PS version aluminum plate foundation finished product.
Embodiment 2: produce the method for PS version with aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid as described in the present invention, may further comprise the steps: (1) delivers to smelting furnace with 920 ℃ high-temperature electrolysis aluminium liquid, add the aluminium ingot that accounts for aluminium liquid gross weight 25%, the control melt temperature is 750 ℃, and the mass percent of adjusting each elemental composition in the melt is: Si:0.1%, Fe:0.35%, Cu:0.07%, Ti:0.03%, surplus are Al; (2) adopt purity in melt, to spray into injection refining agent SY-PJ1 refining greater than 99.999% pure argon, the consumption of injection refining agent SY-PJ1 is 0.3% of an aluminium liquid weight, stir, refining time is 9 minutes, left standstill then 20 minutes, remove the scum silica frost on aluminium liquid surface, melt is imported leave standstill in the stove, it is 745 ℃ that the interior temperature of stove is left standstill in control; (3) the aluminium liquid that will leave standstill in the stove is sent in the chute, add the Al-Ti-B silk that accounts for aluminium liquid weight 1.6 ‰ and carry out grain refinement, Al-Ti-B silk ingredient mass percent is: Ti:5.55%, B:1.2%, Fe:0.25%, Si:0.15%, Al:92.85%, in degasification tank, greater than 99.999% pure argon aluminium liquid is carried out degassing processing then with purity, the rotating speed of graphite rotator is 160r/min in the control degasification tank, making the hydrogen content in the aluminium liquid is 0.10ml/ (100gAl), adopts floamed ceramics filtrating piece that aluminium liquid is carried out filtration, purification then and handles; (4) aluminium liquid flows into the casting and rolling machine casting through preceding case then, and the surface roughness of control casting roller is 0.7 μ m, 690 ℃ of casting temperature, and roll casting speed 900mm/min, the cooling inflow temperature is 18 ℃, inlet pressure 0.35MPa, leaving water temperature are 22 ℃; (5) roll coil of strip material after the casting is sent into rolled by cold rolling machine, the surface roughness of control cold roll is 0.20 μ m, cold rolling pass is assigned as: 7mm → 4mm → 2.4mm → 1.4mm → 0.82mm → 0.47mm → 0.27mm, making strip flatness through stretch bending-straightening machine cleaning aligning then is 3I, promptly gets PS version aluminum plate foundation finished product.
Embodiment 3: produce the method for PS version with aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid as described in the present invention, may further comprise the steps: (1) delivers to smelting furnace with 920 ℃ high-temperature electrolysis aluminium liquid, add the aluminium ingot that accounts for aluminium liquid gross weight 30%, the control melt temperature is 760 ℃, the mass percent of adjusting each elemental composition in the melt is: Si:0.12%, Fe:0.32%, Cu:0.08%, Ti:0.03%, and surplus is Al; (2) adopt purity in melt, to spray into injection refining agent SY-PJ1 refining greater than 99.999% pure nitrogen gas, the consumption of injection refining agent SY-PJ1 is 0.4% of an aluminium liquid weight, stir, refining time is 10 minutes, left standstill then 15 minutes, remove the scum silica frost on aluminium liquid surface, melt is imported leave standstill in the stove, it is 750 ℃ that the interior temperature of stove is left standstill in control; (3) the aluminium liquid that will leave standstill in the stove is sent in the chute, add the Al-Ti-B silk that accounts for aluminium liquid weight 1.7 ‰ and carry out grain refinement, Al-Ti-B silk ingredient mass percent is: Ti:6.05%, B:1.5%, Fe:0.2%, Si:0.1%, Al:92.15%, in degasification tank, greater than 99.999% pure argon aluminium liquid is carried out degassing processing then with purity, the rotating speed of graphite rotator is 180r/min in the control degasification tank, making the hydrogen content in the aluminium liquid is 0.09ml/ (100gAl), adopts floamed ceramics filtrating piece that aluminium liquid is carried out filtration, purification then and handles; (4) aluminium liquid flows into the casting and rolling machine casting through preceding case then, and the surface roughness of control casting roller is 0.8 μ m, 700 ℃ of casting temperature, and roll casting speed 1000mm/min, inflow temperature is 17 ℃ during cooling, inlet pressure 0.3MPa, leaving water temperature are 25 ℃; (5) roll coil of strip material after the casting is sent into rolled by cold rolling machine, the surface roughness of control cold roll is 0.24 μ m, cold rolling pass is assigned as: 6mm → 3.5mm → 2.0mm → 1.2mm → 0.72mm → 0.450mm → 0.27mm, making strip flatness through stretch bending-straightening machine cleaning aligning then is 3I, promptly gets PS version aluminum plate foundation finished product.
Adopt the PS version of the inventive method preparation as shown in table 1 with every performance comparison data of aluminum plate foundation and industry standard and other aluminum plate foundation:
Table 1 performance comparison data
| Tensile strength sigma b(MPa) | Percentage elongation δ, (%) 50mm calibration distance | Thickness (mm) | Surface roughness Ra (μ m) | |
| Printing PS version aluminum plate foundation (YS/T421-2000) | ≥135 | ≥1.0 | 0.27±0.010 | 0.18～0.28 |
| The aluminum plate foundation that electrolytic aluminium liquid casting of the present invention is produced | ≥190 | ≥4.0 | 0.27±0.003 | ≤0.24 |
| Middle aluminium southwest Aluminum (remelted aluminum ingot casting) | 181 | 4.0 | 0.269 | 0.24 |
| SUMITOMO CHEMICAL (hot rolling) | 156 | 2.5 | 0.270 | 0.26 |
| Britain's (hot rolling) | 163 | 3.0 | 0.268 | 0.25 |
Through table 1 contrast obviously as can be seen, the present invention produces the PS version all is better than remelted aluminum ingot casting and traditional hot rolling production with every performance of aluminum plate foundation PS version aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid.
Claims (7)
1, a kind of by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation, it is characterized in that: may further comprise the steps: (1) delivers to smelting furnace with 920 ℃ electrolytic aluminium liquid, add the aluminium ingot that accounts for aluminium liquid gross weight 20～30%, the control melt temperature is 740～760 ℃, the mass percent of adjusting each elemental composition in the melt is: Si:0.08～0.12%, Fe:0.3～0.35%, Cu:0.06～0.08%, Ti:0.01～0.03%, surplus are Al; (2) adopt pure nitrogen gas or pure argon to spray the refining agent refining in melt, stir, refining time is 8～10 minutes, left standstill then 15～25 minutes, remove the scum silica frost on aluminium liquid surface, melt is imported leave standstill in the stove, it is 740～750 ℃ that the interior temperature of stove is left standstill in control; (3) the aluminium liquid that will leave standstill in the stove is sent in the chute, and reverse adding Al-Ti-B silk carries out grain refinement, with pure nitrogen gas or pure argon aluminium liquid is carried out degassing processing then in degasification tank, adopts floamed ceramics filtrating piece that aluminium liquid is carried out filtration, purification after the degasification and handles; (4) aluminium liquid flows into the casting and rolling machine casting through preceding case then, and the surface roughness of control casting roller is 0.7～0.8 μ m, 680～700 ℃ of casting temperature, roll casting speed 800～1000mm/min, inflow temperature is 17～18 ℃ during cooling, and inlet pressure 0.3～0.4MPa, leaving water temperature are 22～25 ℃; (5) roll coil of strip material after the casting is sent into rolled by cold rolling machine, the surface roughness of control cold roll is 0.18～0.24 μ m, is cold-rolled to 0.27mm, and making strip flatness through stretch bending-straightening machine cleaning aligning then is 3I, promptly gets PS version aluminum plate foundation finished product.
2, as claimed in claim 1ly produce the method for PS version with aluminum plate foundation by directly cast-rolling electrolytic aluminium liquid, it is characterized in that: the passage in the described step (5) when cold rolling is assigned as: 6～7mm → 3.5～4mm → 2.0～2.4mm → 1.2～1.4mm → 0.72～0.82mm → 0.45～0.47mm → 0.27mm.
3, as claimed in claim 1 or 2 by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation, it is characterized in that: the addition of Al-Ti-B silk is 1.5～1.7 ‰ of an aluminium liquid weight in the described step (3).
4, as claimed in claim 3 by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation, it is characterized in that: Al-Ti-B silk ingredient mass percent is in the described step (3): Ti:4.75～6.05%, B:1～1.5%, Fe≤0.3%, Si≤0.2%, surplus are Al.
5, as claimed in claim 4 by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation, it is characterized in that: the rotating speed of the graphite rotator in the described step (3) in the degasification tank is 120～180r/min.
6, as claimed in claim 5 by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation, it is characterized in that: refining agent is injection refining agent SY-PJ1 in the described step (2), and addition is 0.1～0.4% of an aluminium liquid weight.
7, as claimed in claim 6 by the method for directly cast-rolling electrolytic aluminium liquid production PS version with aluminum plate foundation, it is characterized in that: the purity of pure argon and pure nitrogen gas is all greater than 99.999% in described step (2) and the step (3).
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| CN200810140553A CN100586640C (en) | 2008-07-11 | 2008-07-11 | Method for directly casting and rolling electrolytic aluminium liquid for producing aluminum plate base for PS plate |
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| CN200810140553A CN100586640C (en) | 2008-07-11 | 2008-07-11 | Method for directly casting and rolling electrolytic aluminium liquid for producing aluminum plate base for PS plate |
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| CN100586640C true CN100586640C (en) | 2010-02-03 |
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| CN115896476A (en) * | 2022-11-04 | 2023-04-04 | 国电投宁夏青铜峡新材料有限公司 | Aluminum and aluminum alloy melt purification process |
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2008
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