CN101564732B - Aluminum casting rolled coil on-line strip rolling method and aluminum casting rolling mill - Google Patents
Aluminum casting rolled coil on-line strip rolling method and aluminum casting rolling mill Download PDFInfo
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- CN101564732B CN101564732B CN2009103032785A CN200910303278A CN101564732B CN 101564732 B CN101564732 B CN 101564732B CN 2009103032785 A CN2009103032785 A CN 2009103032785A CN 200910303278 A CN200910303278 A CN 200910303278A CN 101564732 B CN101564732 B CN 101564732B
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Abstract
The invention discloses an aluminum casting rolled coil on-line strip rolling method and a aluminum casting rolling mill which can roll more than two aluminum casting rolled coils. The method comprises following steps: aluminum liquid entering into the aluminum casting rolling mill via a casting mouth for roll forming; separating the aluminum liquid along the flow direction by a limit stop arranged between the casting mouth and the rolling gap of the aluminum casting rolling mill and between the two ends of the rolling gap and along the aluminum liquid flow direction; synchronously cooler crystallizing and synchronously rolling to the separated aluminum liquid in the same aluminum casting rolling mill. The invention can roll more than two aluminum casting rolled coils in the same aluminum casting rolling mill simultaneously so as to improve the production efficiency and save time, human and material resources. A shunting block is arranged in the casting mouth; a limit stop axially disposed with the shunting block is arranged along the aluminum liquid flow direction; the head profile of the limit stop is in a streamline shape and the tail profile of the limit stop is a triangle whose tip points to the rolling gap, thus improving the strip quality of the aluminum casting rolling board.
Description
Technical field
The present invention relates to a kind of aluminium casting volume milling method and aluminium casting-rolling mill thereof.
Background technology
Aluminium casting volume rolling generally comprises following process: aluminium ingot and through smelting furnace and holding furnace formation aluminium liquid; Through case before getting into behind aluminium spout entering depassing unit and the filter, preceding case aluminium liquid is controlled liquid level by fluid level controller, gets into aluminium casting-rolling mill through lip; Be arranged at intervals with a plurality of branching blocks in the lip; Aluminium liquid is divided into multiply aluminium liquid thread by a plurality of branching blocks by advancing of lip after the aluminium mouth gets into, and the spacing between each branching block is increased to both sides by mid point gradually, and its aluminium liquid is evenly distributed to trying one's best along roll mandrel; And under the effect of roll, forming a smooth aluminium casting plate, wrench batches through entering coiling machine after shearing and forms aluminium casting volume.Wherein, lip is the core part that casting is produced, and inner structure, the size composition of lip just become influence to roll the key factor of plate quality, and the temperature of aluminium liquid and flow velocity also are the important parameters of producing.
At present, a casting production line once can only be produced a batten, and promptly whenever cutting casting volume can only have a volume.With maximum rolling width is that the aluminium casting-rolling mill of 1700mm is an example; On production cost; Produce the wide aluminium casting of wall scroll 750mm plate and all do not have too big difference with wide required electricity, natural gas, refining agent, slagging agent and the equipment depreciation rate of aluminium casting plate of production 1650mm; But under this equal working condition; The 750mm of production condition of equivalent thickness wide aluminium casting plate and the wide aluminium casting of 1650mm plate are but having on the output than big difference: as producing the 750mm daily output about 15～18 tons, produce the wide aluminium casting of 1650mm plate and then can this shows at 30～36 tons; Under the equal working condition, 750mm specification aluminium casting plate has turned over one times nearly than 1650mm specification aluminium casting plate on production cost.Only make full use of the width of roll, maximally utilise the rolling power of aluminium casting-rolling mill, could save production cost.
Summary of the invention
In order to overcome existing deficiency, technical problem to be solved by this invention provides a kind of aluminium casting coil on-line strip rolling method and aluminium casting-rolling mills thereof that can simultaneously rolling two above aluminium casting volumes.
The technical solution adopted for the present invention to solve the technical problems is: aluminium casting coil on-line strip rolling method; Aluminium liquid gets into aluminium casting-rolling mill roll forming through lip; To separating, the each several part aluminium liquid that separates is synchronous crystallisation by cooling, rolling synchronously on same aluminium casting-rolling mill to the suitable aluminium flow of aluminium liquid.
Capable of using be arranged on said lip and this aluminium casting-rolling mill roll between the seam and roll between the seam two ends and along the aluminium flow to the block of arranging to aluminium liquid along the aluminium flow to separating.
The present invention also provides a kind of preceding method that is used for, aluminium casting-rolling mills that can simultaneously rolling two above aluminium casting volumes, and it comprises lip and rolls seam, and lip is provided with at least one block with rolling between the seam, and the suitable aluminium flow of block is to being arranged between the two ends of rolling seam.
The invention has the beneficial effects as follows: can production efficiency significantly improved at simultaneously rolling aluminium casting volume more than two on the same aluminium casting-rolling mill, save the time greatly, human and material resources, improve productivity effect; Branching block is set in the lip, and to the block of setting with the branching block coaxial arrangement, the block contouring head adopts streamlined along the aluminium flow, and block afterbody profile adopts most advanced and sophisticated sensing to roll the triangle of seam, improves the strip shape quality of aluminium casting plate.
Description of drawings
Fig. 1 is the sketch map of existing lip.
Fig. 2 is the sketch map of lip of the present invention.
Fig. 3 is a kind of front view of block.
Fig. 4 is improved block front view.
Fig. 5 is preferred block front view.
Be labeled as lip 1, branching block 2, roll gap 3, block 4, split channel 5, lip inlet 11, lip liquid outlet 12, lip die cavity flow field 13, block head 31, block afterbody 32 among the figure.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Like Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5; Aluminium casting coil on-line strip rolling method of the present invention, utilize be arranged on lip 1 and aluminium casting-rolling mill roll between the seam 4 and roll between seam 4 two ends and along the aluminium flow to 3 pairs of aluminium liquid of block of arranging along the aluminium flow to separating, the each several part aluminium liquid that separates crystallisation by cooling, rolling synchronously synchronously on same aluminium casting-rolling mill; With aluminium liquid along the aluminium flow to separating into several sections; With regard to the corresponding aluminium casting plate that rolls out respective amount of ability, thereby can production efficiency be significantly improved at simultaneously rolling aluminium casting volume more than two on the same aluminium casting-rolling mill; Saved the time greatly, human and material resources, improved productivity effect.
The aluminium casting-rolling mill that is used for aluminium casting coil on-line strip rolling method of the present invention comprises lip and rolls seam, and lip 1 is provided with at least one block 3 with rolling between the seam 4, and block 3 stitches between 4 the two ends to being arranged in to roll along the aluminium flows.Utilize block 3 to merotomize from the aluminium liquid that lip liquid outlet 12 flows out to flow into and roll seam 4, and synchronous crystallization is solidified and the aluminium casting plate of rolling formation more than two under the roll effect of aluminium casting-rolling mill, at the aluminium casting volume that forms under the coiling machine effect more than two.As long as each piece aluminium casting plate and block 3 within the maximum rolling width scope of width sum at aluminium casting-rolling mill of rolling seam 4 places, just can be realized rolling aluminium casting plate more than two simultaneously.Certainly, to the aluminium casting plate of different in width, the position is set should correspondingly adjusts of block 3, as will guaranteeing strip shape quality preferably, the width of corresponding adjustment branching block 2, split channel 5.
Should be provided with in the said lip 1 a plurality of along the aluminium flows to branching block 2; And; This moment, said block 3 should be arranged with branching block 2 coaxial line wherein, and this axis and aluminium flow are to parallel, so that the aluminium liquid in the lip die cavity flow field 13 flow with laminar as far as possible; Aluminium liquid after the separation also flows into laminar as far as possible and rolls seam 4, improves the strip shape quality of aluminium casting plate.
Usually, for the product of same production batch, because of its specification is identical, the width of aluminium casting plate is identical, and block 3 reaches and the branching block 2 of its coaxial arrangement should be positioned at lip 1 center, and the width of its both sides split channel 5 is begun to increase gradually to both sides by this branching block 2.
The block 3 general block afterbodys 32 that adopt are the most advanced and sophisticated leg-of-mutton axisymmetric slab structure of rolling seam 4 of pointing to; Its length is confirmed with the spacing of rolling seam 4 according to the liquid outlet 12 of lip 1; Its width confirms that according to the width of branching block 2 its thickness is greater than the lip 1 inner fluid degree of depth.
For further making flow rate of aluminium liquid even; On block 3, hang angle etc. when reducing aluminium liquid impurity being arranged and cause 13 turbulent fluctuations of lip die cavity flow field; Reduce the inner aluminium liquid of the lip temperature difference, it is poor to reduce with plate, improves the strip shape quality of aluminium casting plate; Block head 31 profiles of said block 3 are preferably streamlined, and block afterbody 32 profiles of said block 3 are preferably the most advanced and sophisticated triangle that rolls seam 4 that points to.
The material of said block 3 should be selected asbestos, asbestos board for example, and it both is difficult for and the adhesion of aluminium liquid, has enough intensity again, is unlikely to be crushed by fluid pressure.
Embodiment one:
Utilize aluminium casting volume milling method of the present invention and rolling 1000 series alloys of aluminium casting-rolling mill thereof, temperature of aluminum liquid is controlled at 680～685 ℃, cooling water flow 500～600L/min, flow velocity 1.05～1.10m/min, pressure 4.0～4.5kg/cm
2
Adopt shape block as shown in Figure 3.
It sees table 1 (mm of unit) with the plate difference data.
Table 1
Embodiment two:
Utilize aluminium casting volume milling method of the present invention and rolling 8000,3000 series alloys of aluminium casting-rolling mill thereof, temperature of aluminum liquid is controlled at 690～695 ℃, cooling water flow 600～700L/min, flow velocity 0.85～0.90m/min, pressure 5.5～6.5kg/cm
2Adopt shape block as shown in Figure 4.
It sees table 2 (mm of unit) with the plate difference data.
Table 2
Claims (3)
1. aluminium casting-rolling mill; Comprise lip (1) and roll seam (4); It is characterized in that: lip (1) and roll and be provided with at least one block (3) between the seam (4); Block (3) along the aluminium flow to being arranged between the two ends of rolling seam (4), be provided with in the said lip (1) a plurality of along the aluminium flows to branching block (2), said block (3) and the layout of a branching block (2) coaxial line wherein; Said block (3) and the branching block (2) coaxial with it are positioned at lip (1) center, and the width of its both sides split channel (5) is begun to increase gradually to both sides by this branching block (2).
2. aluminium casting-rolling mill as claimed in claim 1 is characterized in that: block head (31) profile of said block (3) is streamlined, and block afterbody (32) profile of said block (3) rolls the triangle of seam (4) for most advanced and sophisticated the sensing.
3. aluminium casting-rolling mill as claimed in claim 1 is characterized in that: the material of said block (3) is asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103032785A CN101564732B (en) | 2009-06-16 | 2009-06-16 | Aluminum casting rolled coil on-line strip rolling method and aluminum casting rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103032785A CN101564732B (en) | 2009-06-16 | 2009-06-16 | Aluminum casting rolled coil on-line strip rolling method and aluminum casting rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101564732A CN101564732A (en) | 2009-10-28 |
| CN101564732B true CN101564732B (en) | 2012-02-29 |
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| CN2009103032785A Expired - Fee Related CN101564732B (en) | 2009-06-16 | 2009-06-16 | Aluminum casting rolled coil on-line strip rolling method and aluminum casting rolling mill |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603020A (en) * | 2004-11-12 | 2005-04-06 | 洛阳铜加工集团有限责任公司 | Technological process for continuous casting and rolling wrought magnesium alloy thin plate and band |
| CN1824399A (en) * | 2006-01-04 | 2006-08-30 | 太原科技大学 | New technology of bar material contiauous casting and milling |
| CN101323011A (en) * | 2008-07-21 | 2008-12-17 | 镇江鼎胜铝业有限公司 | Casting lip |
-
2009
- 2009-06-16 CN CN2009103032785A patent/CN101564732B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603020A (en) * | 2004-11-12 | 2005-04-06 | 洛阳铜加工集团有限责任公司 | Technological process for continuous casting and rolling wrought magnesium alloy thin plate and band |
| CN1824399A (en) * | 2006-01-04 | 2006-08-30 | 太原科技大学 | New technology of bar material contiauous casting and milling |
| CN101323011A (en) * | 2008-07-21 | 2008-12-17 | 镇江鼎胜铝业有限公司 | Casting lip |
Non-Patent Citations (1)
| Title |
|---|
| 范永清等.用一台铸轧机同时生产两卷不同宽度的铝带坯.《轻合金加工技术》.2002,第30卷(第2期),第47页. * |
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| CN101564732A (en) | 2009-10-28 |
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