CN101745613B - Device for manufacturing aluminum alloy plate for lithographic printing plate - Google Patents
Device for manufacturing aluminum alloy plate for lithographic printing plate Download PDFInfo
- Publication number
- CN101745613B CN101745613B CN 200910224954 CN200910224954A CN101745613B CN 101745613 B CN101745613 B CN 101745613B CN 200910224954 CN200910224954 CN 200910224954 CN 200910224954 A CN200910224954 A CN 200910224954A CN 101745613 B CN101745613 B CN 101745613B
- Authority
- CN
- China
- Prior art keywords
- molten metal
- motlten metal
- continuous casting
- stream
- rolling device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention provides a device for manufacturing an aluminum alloy plate for a lithographic printing plate which can avoid the faults on a continuous casting plate which are not caused by mixing TiB2 cohesion grains moving near to the bottom of a molten metal. A continuous casting device for the aluminum alloy plate at least comprises a molten metal supplying nozzle having a molten metal flow path inside, a pair of cooling rollers supplied with aluminum alloy molten metal by the molten metal supplying nozzle, and a container for supplying the aluminum alloy molten metal to the molten metal supplying nozzle. The continuous casting device for the aluminum alloy plate is characterized in that the upstream side of the molten metal supplying nozzle is provided with a mechanism for capturing the foreign matters existed on the surface of the aluminum alloy molten metal.
Description
Technical field
The present invention relates to the manufacturing installation of allautal for planographic plate.In addition, the present invention relates to use the manufacture method of allautal for planographic plate of the manufacturing installation of this allautal for planographic plate.And then, the invention still further relates to the allautal for planographic plate that the manufacture method by this supporting body for lithographic printing plate obtains.
Background technology
Manufacture method based on the allautal for planographic plate of continuous casting process is by following casting process, the cold rolling operation, the intermediate annealing operation, cold sperm rolling process and flatness correcting operation and make the manufacture method of allautal for planographic plate of the aluminium alloy plate of thickness of slab 0.1～0.5mm, namely, the aluminium raw material are melted, and the aluminium motlten metal process filtration treatment to obtaining, afterwards, this aluminium motlten metal is supplied with between a pair of chill roll via the feeding molten metal nozzle, the aluminium motlten metal is solidified and simultaneously it is rolled, thereby formation aluminium alloy plate, because this operation is simple, therefore with the usually said DC casting process that comprises, the building up by welding operation, the soaking operation, heating process, the manufacture method of the existing allautal for planographic plate of hot rolling operation is compared, just like inferior advantage: the little and superior yields of loss, be not vulnerable to the impact of operation change, the initial stage equipment cost, operating cost is cheap, but then, easily produce the peculiar fault of continuous casting process as black muscle fault, therefore what be difficult to be applicable to as lithographic plate effects on surface quality requires the high material of level, and inventor to wait and repeatedly to scrutinize in order addressing this problem all the time.
When implementing to make continuously, in the aluminium motlten metal, add the aluminium alloy that contains titanium and boron.The TiB that is produced by the aluminium alloy that contains titanium and boron that adds the melting in the aluminium motlten metal to
2Particle plays a role as the crystalline structure miniaturization material in when casting.TiB
2Particle be single be that 1～2 μ m, thickness are the laminal particle of 0.1～0.5 μ m, but this particle easily forms aggregation, if the above aggregation of particle diameter 100 μ m (below, be called " TiB
2Aggregated particle ") sneak in the cast sheet; then this cast sheet is rolled and anneals or any one operation and when being processed into thin plate wherein; can intermittently produce on the surface of thin plate the fault of black muscle shape, fault that therefore will this black muscle shape is called deceives the muscle fault.
So far, as the method that prevents black muscle fault, the inventor etc. for example disclose a kind of manufacture method of supporting body for lithographic printing plate in patent documentation 1, it is characterized in that, have use lautertuns that interpolation is contained aluminium motlten metal that the aluminium alloy of Ti and B forms and filters after, cast rolling operation continuously, here, described aluminium motlten metal is in order by the pre-filtering chamber in the described lautertuns, the filter that the above condensation product of particle diameter 10 μ m that the single particle that the particle diameter 10 μ m that stop the compound of existing Ti in the alloy contain Ti and B and B to consist of are above or a plurality of gatherings of this compound form passes through, and chamber after filtering, and described pre-filtering chamber, the chamber is heated by heater after filter and the filtration, simultaneously disclose following content in patent documentation 1: described filter is made of the aggregation with stable on heating particle below the diameter 5mm, and described filter is that the stable on heating particle of having of diameter 0.5～2.0mm is carried out the earthenware filter that sintering forms.
In addition, as the method that prevents black muscle fault, the inventor etc. disclose a kind of continuous casting rolling device in patent documentation 2, it is supplied with motlten metal from the feeding molten metal nozzle to casting rolling mechanism, and by described casting rolling mechanism described motlten metal is carried out casting rolling and form cast sheet, described continuous casting rolling device is characterised in that, the bottom surface of the stream till described molten metal flow arrives described feeding molten metal nozzle forms recess, make the contamination precipitation that contains in the described motlten metal to described recess, simultaneously the degree of depth of described recess is 2～5 times of the degree of depth of described stream, and the peristome length of the flow direction of described recess is 1～10 times of the degree of depth of described stream.
And then, as utilizing this recess to prevent the method for black muscle fault, the inventor etc. disclose a kind of manufacture method of having used the aluminium sheet of continuous casting rolling device in patent documentation 3, in described continuous casting rolling device, stream bottom surface at the aluminium motlten metal, with respect to flow direction upper end forwardly the recess with otch is set, and then a kind of manufacture method of aluminium sheet of using the continuous casting rolling device also disclosed in patent documentation 3, in described continuous casting rolling device, with respect to flow direction upper end in the wings the recess with otch is set also.
Further, as utilizing this recess to prevent the method for black muscle fault, the inventor etc. disclose a kind of continuous casting rolling device in patent documentation 4, it is supplied with motlten metal from nozzle to casting rolling mechanism, and cast continuously rollingly by casting rolling mechanism, in described continuous casting rolling device, be provided with rabbling mechanism at recess, stir near the recess motlten metal by this rabbling mechanism, thereby prevent the precipitation of motlten metal.
Like this, as the method that prevents black muscle fault, near the TiB that the bottom of motlten metal, moves for being used for preventing from precipitating
2Aggregated particle is sneaked into the mechanism of cast sheet, has proposed so far various schemes.
Patent documentation 1: No. 3549080 communique of Japan Patent;
Patent documentation 2: Japanese kokai publication hei 11-47892 communique;
Patent documentation 3: Japanese kokai publication hei 11-254093 communique;
Patent documentation 4: TOHKEMY 2000-24762 communique.
Although take such mechanism can prevent that near the bottom of motlten metal mobile TiB2 aggregated particle sneaks into cast sheet, but have this problem of fault that has produced the continuous casting plate.
Summary of the invention
The present invention proposes in view of above-mentioned actual conditions, and purpose is to provide a kind of manufacturing installation of allautal for planographic plate, and it can prevent because near the TiB that moves the bottom of motlten metal
2The fault of the continuous casting plate of sneaking in addition former thereby causing of aggregated particle.
The result that the inventor etc. scrutinize is, it is to cause the reason of the fault of continuous casting plate that the foreign matter that exists on the top layer of motlten metal, the oxide-film that particularly exists on the top layer of motlten metal or the impurity that exists in this oxide-film (for example, the impurity that contains Mg, Ti take the Al oxide as representative etc.) are sneaked into this situation of cast sheet.Below, in this manual, will be called the fault (motlten metal top layer foreign matter is sneaked into fault) that casts plate continuously owing to the so former thereby fault continuous casting plate that causes.
The present invention is based on above-mentioned opinion, a kind of continuous casting rolling device (below, be called " continuous casting rolling device of the present invention ") of aluminium alloy plate is provided, it possesses at least: the feeding molten metal nozzle that has the motlten metal stream in inside; Be supplied to a pair of chill roll of al alloy molten metal from this feeding molten metal nozzle; And container from al alloy molten metal to this feeding molten metal nozzle that supply with, the continuous casting rolling device of described aluminium alloy plate is characterised in that, is provided with the mechanism of the foreign matter that exists be used to the top layer that is captured in al alloy molten metal at the upstream side of described feeding molten metal nozzle.
The first embodiment of continuous casting rolling device of the present invention is characterised in that, with the upper surface equal height that is positioned near the described motlten metal stream the upstream-side-end with described feeding molten metal nozzle or than the mode of the top side's of this upper surface position, dispose the baffle plate that extends and satisfy following condition from the upstream side end face of this feeding molten metal nozzle to the flow direction upstream side of al alloy molten metal along general horizontal direction, this baffle plate is described capture mechanism, the condition that satisfies be distance from the liquid level of the al alloy molten metal in the described container to described baffle plate lower surface more than 5mm, and the length of the described baffle plate on the flow direction of al alloy molten metal is 10～100mm.
In the first embodiment of continuous casting rolling device of the present invention, the thickness of preferred described baffle plate is 2～10mm.
The second embodiment of continuous casting rolling device of the present invention is characterised in that, at described feeding molten metal nozzle, be positioned at than the upstream side end face of a side of the lower surface that the comprises described motlten metal stream mode by the position of the flow direction upstream side of al alloy molten metal with the upstream side end face of a side of the upper surface that comprises described motlten metal stream, be provided with the extension that extends and satisfy following condition to the flow direction upstream side of al alloy molten metal, at this extension, near so that the upper surface mode lower than the upper surface at other positions of described motlten metal stream of the described motlten metal stream the upstream-side-end, a part that is provided with the upper surface by described motlten metal stream is the outstanding protuberance that forms and satisfy following condition downwards, this extension is described capture mechanism, the condition that satisfies is 10～200mm for the distance from the liquid level of the al alloy molten metal in the described container to the upper surface of the described motlten metal stream that forms described protuberance, the length of the described protuberance on the flow direction of al alloy molten metal is 5～100mm, the difference in height of upper surface that forms other positions of the upper surface of described motlten metal stream of described protuberance and described motlten metal stream is 5～100mm, and the distance between the upstream side end face of the lower face side of the end of downstream side of the described protuberance on the flow direction of al alloy molten metal and described motlten metal stream is 10～300mm.
In the second embodiment of continuous casting rolling device of the present invention, be made as H in the distance with the upper surface from the liquid level of the al alloy molten metal in the described container to the described motlten metal stream that forms described protuberance
1, the distance from the liquid level of the al alloy molten metal in the described container to the lower surface of described motlten metal stream is made as H
2The time, preferably satisfy following condition: 0mm≤H
1-H
2≤ 190mm.
In the second embodiment of continuous casting rolling device of the present invention, preferred also to be positioned at the upstream side end face equal height of described feeding molten metal nozzle or than the mode of the top side's of this upstream-side-end position, dispose the baffle plate that extends and satisfy following condition to the flow direction upstream side of al alloy molten metal, described extension and this baffle plate consist of described capture mechanism, the condition that satisfies be distance from the liquid level of the al alloy molten metal in the described container to described baffle plate lower surface more than 5mm, and the length of the described baffle plate on the flow direction of al alloy molten metal is 10～100mm.
Here, the thickness of preferred described baffle plate is 2～10mm.
In continuous casting rolling device of the present invention, preferably the distance from the liquid level of the al alloy molten metal in the described container to the lower surface of described motlten metal stream is 15～250mm.
In continuous casting rolling device of the present invention, preferably the distance from the lower surface of described container to the lower surface of described motlten metal stream is 10～200mm.
In addition, the invention provides a kind of usefulness continuous casting rolling device of the present invention and make the method that the lithographic plate supporting mass is used aluminium alloy plate.
In addition, the invention provides a kind of lithographic plate supporting mass aluminium alloy plate that uses continuous casting rolling device of the present invention and produce.
In addition, the invention provides a kind of lithographic plate supporting mass aluminium alloy plate that uses method of the present invention and produce.
In continuous casting rolling device of the present invention, owing to being provided with the mechanism of the foreign matter of the top layer existence that is captured in motlten metal, therefore above-mentioned foreign matter can not enter the feeding molten metal nozzle, thereby can prevent that above-mentioned foreign matter from entering manufactured continuous casting plate.Consequently, can not produce at manufactured continuous casting plate fault (motlten metal top layer foreign matter is sneaked into fault), thereby surface quality improves.
Description of drawings
Fig. 1 is the front view of an embodiment of expression continuous casting rolling device of the present invention.
Fig. 2 is the partial enlarged drawing of a configuration example of container 6 in the expression continuous casting rolling device shown in Figure 1 and feeding molten metal nozzle 7.
Fig. 3 is the container 6 of expression in the existing continuous casting rolling device and the partial enlarged drawing of a configuration example of feeding molten metal nozzle 7.
Fig. 4 is the partial enlarged drawing of another configuration example of container 6 in the expression continuous casting rolling device shown in Figure 1 and feeding molten metal nozzle 7.
Fig. 5 is the partial enlarged drawing of the another configuration example of container 6 in the expression continuous casting rolling device shown in Figure 1 and feeding molten metal nozzle 7.
Fig. 6 be expression feeding molten metal nozzle shape with and with the schematic diagram of the preference of the position relationship of chill roll.
Fig. 7 (a), (b) are that the expression front end is the schematic diagram of another example of the feeding molten metal nozzle of movable structure, and wherein, Fig. 7 (a) is top view, and Fig. 7 (b) is side view.
Fig. 8 is that expression is for the schematic diagram of the example of the cold rolling mill of cold rolling.
Fig. 9 is the schematic diagram of the example of expression apparatus for correcting.
Symbol description: 1-casts rolling device continuously, and 2-melts and keeps stove, 3-the first stream, the 4-filter mechanism, 41-filter, 5-the second stream, the 6-container, 7-feeding molten metal nozzle, 71-motlten metal stream, the 72-plate part, 72b-extension, 72c-protuberance, 72d-dodges section's (chamfered section), 73-lower plate member, 74-pole member, the 8-baffle plate, 9-chill roll, 10-coiler device, the 11-cold rolling mill, 12-sends coil, 13-coiling coil, the 14-Rolling roller, 15-backing roll, 20-apparatus for correcting, 21-leveling section, 22-sends coil, 23-coiling coil, 24-working roll, the 25-cutting machine, 100-aluminium motlten metal, 200-casts plate (aluminium alloy plate), the leading section of T-feeding molten metal nozzle continuously.
The specific embodiment
Below, the present invention will be described with reference to accompanying drawing.
Fig. 1 is the front view that is illustrated in an embodiment of the continuous casting rolling device that uses in the manufacture method of allautal for planographic plate of the present invention.In Fig. 1, omitted the wall of side in front of the figure.In addition, this point also is applicable to whole front views of the application.
In continuous casting rolling device 1 shown in Figure 1, in melt keeping stove 2, have and cast alumin(i)um is melted, add Fe, Si etc. and be adjusted to the al alloy molten metal (below, be called " Al motlten metal ") 100 of desired composition.As adding methods such as Fe, Si, such as enumerating the foundry alloy that adds Al-Fe (25wt%), the methods such as foundry alloy of Al-Si (25wt%).The preferred composition of Al motlten metal is in aftermentioned.
Carry to filter mechanism 4 by the first stream 3 melting the Al motlten metal 100 that keeps in the stove 2.In filter mechanism 4, be provided with the filter 41 that filters Al motlten metal 100.Remove and sneak into the impurity in the Al motlten metal 100 and remain in dirt in calciner, the motlten metal stream etc. by being arranged at filters 41 in the filter mechanism 4.
In the first stream 3, preferably will contain the TiB as crystal grain miniaturization material
2Foundry alloy add in the Al motlten metal 100.This is because by adding crystal grain miniaturization material, crystal grain easily becomes fine when continuous casting, and in the surface treatment procedure when making supporting body for lithographic printing plate, can suppress the surface treatment inequality that causes because of thick crystal grain.
As containing TiB
2Foundry alloy, particularly can example such as Ti (5%), B (1%), remainder by Al and the inevitable foundry alloy of the wire-like that consists of of impurity.
In addition, when adding crystal grain miniaturization material, in order to suppress TiB
2The outflow of aggregated particle is preferably being added by the position of upstream side than filter mechanism 4.
Passed through the Al motlten metal 100 of filter mechanism 4 by the second stream 5, then flowed into to the container 6 that is used for motlten metal 100 is supplied with to feeding molten metal nozzle 7.Although not shown, thereby in container 6, be provided with for the influx of adjusting AL motlten metal 100 liquid level of the Al motlten metal in this container 6 is remained certain level control mechanism.Can enumerate mechanism as described below as an example of level control mechanism, namely, liquid surface level sensor (not shown) according to these container 6 interior settings, be located at the opening amount of valve (not shown) or the change valve of the inflow entrance of this container 6 by switching, adjust the amount that flows into the Al motlten metal 100 in the container 6, thereby the height of the liquid level of the motlten metal 100 in this container 6 is remained necessarily.
The outlet side peristome of container 6 is communicated with the motlten metal stream 71 of feeding molten metal nozzle 7.Supply with between two chill rolls 9,9 that the Al motlten metal 100 that will pass through this motlten metal stream 71 positions to the distance that keeps certain intervals.Carry out thus casting rolling.To be wound into coiled type by the continuous casting plate (aluminium alloy plate) 200 that casting rolling obtains by coiler device 10.In addition, suitably cut off by cutting machine (not shown).
In continuous casting rolling device of the present invention, be provided with the mechanism (below, referred to as " trapping foreign matter mechanism ") of the foreign matter that exists be used to the top layer that is captured in Al motlten metal 100 at the upstream side of feeding molten metal nozzle 7.
As mentioned above, as the method that prevents black muscle fault, near the TiB that the bottom of motlten metal, moves for being used for preventing from precipitating
2Aggregated particle is sneaked into the mechanism of cast sheet, has proposed so far various schemes.Fig. 3 is the container 6 of expression in the existing continuous casting rolling device and the partial enlarged drawing of the structure of feeding molten metal nozzle 7.Feeding molten metal nozzle 7 shown in Figure 3 is the common structures for the feeding molten metal nozzle of continuous casting rolling device.Feeding molten metal nozzle 7 shown in Figure 3 is made of plate part 72 and lower plate member 73, and has motlten metal stream 71 between this plate part 72 and lower plate member 73.As shown in Figure 3, in existing continuous casting rolling device, by increasing from the bottom surface of container 6 to the distance L of the bottom surface of motlten metal stream 71
2, that is, the mode that is positioned near the position of the liquid level of the Al motlten metal 100 of container 6 with motlten metal stream 71 configures feeding molten metal nozzle 7, thereby can prevent near exist the bottom of container 6 TiB
2Aggregated particle enters the motlten metal stream 71 of feeding molten metal nozzle 7.In addition, the L in the existing continuous casting rolling device
2Scope be generally 10～200mm.
Yet, usually have oxide-film 101 on the top layer of Al motlten metal 100.In such oxide-film 101, there is impurity 102 more.As the concrete example of such impurity, can enumerate such as impurity that contains Mg, Ti take the Al oxide as representative etc.
In existing continuous casting rolling device, because the motlten metal stream 71 of feeding molten metal nozzle 7 is configured in the position near the liquid level of the Al motlten metal 100 of container 6, the therefore distance L from the liquid level of the Al motlten metal 100 in the container 6 to the upper surface of motlten metal stream 71
3Little, so just can not prevent that these foreign matters (oxide-film 101 and the impurity 102 that exists) that exist on the top layer of Al motlten metal 100 from entering motlten metal stream 71 in this oxide-film 101.Be fed between the chill roll 9,9 from motlten metal stream 71 if contain the Al motlten metal 100 of such foreign matter, then can cause the fault (melting top layer foreign matter is sneaked into fault) of continuous casting plate.
In addition, the L in the existing continuous casting rolling device
3Scope be generally 2～10mm.
Fig. 2 is the partial enlarged drawing of a configuration example of container 6 in the expression continuous casting rolling device 1 of the present invention shown in Figure 1 and feeding molten metal nozzle 7.
In Fig. 2, baffle plate 8 is set as follows, that is, from the upstream side end face of feeding molten metal nozzle 7, particularly the upstream side end face of the plate part 72 of feeding molten metal nozzle 7 extends along general horizontal direction to the flow direction upstream side of Al motlten metal 100.As shown in Figure 2, by baffle plate 8 is set, can prevent that the foreign matter (oxide-film 101 and the impurity 102 that exists) that exists on the top layer of Al motlten metal 100 from entering motlten metal stream 71 in this oxide-film 101.That is, in the structure shown in 2, baffle plate 8 is trapping foreign matter mechanisms.Wherein, baffle plate 8 need to satisfy following (1)～(3) in order to bring into play the function of trapping foreign matter mechanism.
(1) baffle plate 8 is positioned near the upper surface equal height of the motlten metal stream 71 the upstream-side-end with feeding molten metal nozzle 7 or than the top side's of this upper surface position.
As can be known clear and definite from Fig. 2, if baffle plate 8 is not positioned at the upstream-side-end equal height of motlten metal stream 71 or than the top side's of this upstream-side-end position, can not prevent that then the foreign matter (oxide-film 101 and the impurity 102 that exists) that exists on the top layer of Al motlten metal 100 from entering motlten metal stream 71 in this oxide-film 101.In addition, as shown in Figure 2, in the situation that baffle plate 8 has thickness, need to make the lower surface of baffle plate 8 be positioned at upstream-side-end near motlten metal stream 71 the upper surface equal height or than the top side's of this upper surface position.
(2) distance L from the liquid level of the Al motlten metal 100 in the container 6 to the lower surface of baffle plate 8
5More than 5mm.
As shown in Figure 2, the oxide-film that exists on the top layer of Al motlten metal 100 has thickness to a certain degree.For the impurity 102 that prevents such oxide-film 101 and exist in this oxide-film 101 enters motlten metal stream 71, need to baffle plate 8 be set in oxide-film 101 position on the lower than the thickness with this degree.Here, if the thickness that the oxide-film 101 that exists on the top layer of Al motlten metal 100 has the following degree of 3mm usually is with L
5Be set in more than the 5mm, can prevent fully that then the oxide-film 101 that exists on the top layer of Al motlten metal 100 and the impurity 102 that exists from entering motlten metal stream 71 in this oxide-film 101.
Preferred L
5More than 10mm.
But, the lower surface of baffle plate 8 be positioned at upstream-side-end near motlten metal stream 71 the upper surface equal height or than the top side's of this upper surface position, if therefore L
5Excessive, then correspondingly the position of motlten metal stream 71 is mobile downwards, and the discharge pressure of the Al motlten metal 100 during by this motlten metal stream 71 (ヘ Star De pressure) is different from usual conditions, thereby not preferred.From this point, preferred L
5Below 50mm, more preferably below 30mm, further preferably below 15mm.
In addition, since the lower surface of baffle plate 8 be positioned at upstream-side-end near motlten metal stream 71 the upper surface equal height or than the top side's of this upper surface position, the therefore distance L from the liquid level of the interior Al motlten metal 100 of container 6 to the upper surface of motlten metal stream 71
3Also need to satisfy L
5The condition of putting down in writing.In addition, as make putting down in writing the lower surface of baffle plate 8 be positioned at upstream-side-end near motlten metal stream 71 the upper surface equal height or than the top side's of this upper surface position, although do not need to make L
3With L
5Unanimously, but preferred both poor (L
3-L
5) below 5mm, more preferably below 3mm, further preferably below 1mm.
(3) length L of the baffle plate 8 on the flow direction of al alloy molten metal
6Be 10～100mm.
As can be known clear and definite from Fig. 2, if the oxide-film 101 that exists on the top layer of Al motlten metal 100 and the impurity 102 that exists in this oxide-film 101 arrive the upstream side end face of feeding molten metal nozzle 7, more specifically the upstream side end face of the plate part 72 of feeding molten metal nozzle 7 is then mobile downwards, if therefore the length of baffle plate 8 is too short, can not prevent that then the oxide-film 101 that exists on the top layer of Al motlten metal 100 and the impurity 102 that exists from entering motlten metal stream 71 in this oxide-film 101.If L
6More than 10mm, can prevent fully that then the oxide-film 101 that exists on the top layer of Al motlten metal 100 and the impurity 102 that exists from entering motlten metal stream 71 in this oxide-film 101.Preferred L
6More than 10mm, more preferably more than 20mm, further preferably more than 30mm.
On the other hand, if L
6Excessive, can not prevent that then the oxide-film 101 that exists on the top layer of Al motlten metal 100 and the impurity 102 that exists from entering motlten metal stream 71 in this oxide-film 101, there are on the contrary the manufacturing cost increase of baffle plate 8, the possibility of baffle plate 8 breakages, not preferred from the reasons such as flow resistance increase of Al motlten metal 100.From this point, preferably with L
6The upper limit be set as 100mm.Preferred L
6Below 80mm, more preferably below 60mm.
The thickness L of preferred baffle plate 8
7 Be 2～50mm.If L
7Less than 2mm, then may cause the mechanical strength of baffle plate 8 insufficient.On the other hand, if L
7Surpass 50mm, then have superfluous mechanical strength, and the increase of the manufacturing cost of baffle plate 8, therefore not preferred.
More preferably L
73～10mm.
The preferable range of other sizes among Fig. 2 is as described below.
The thickness of slab of finishing from casting and aluminium are supplied with the height L of preferred molten metal stream 71 the relationship between quantities
1Be 3～30mm, 5～20mm more preferably is further preferably at 5～15mm.
The preferred distance H from the liquid level of the Al motlten metal 100 in the container 6 to the lower surface of motlten metal stream 7
2They be 15～250mm, thereby the discharge pressure of the Al motlten metal 100 in the time of can preventing by motlten metal stream 71 is different from usual conditions, more preferably 15～250mm, more preferably 20～100mm.
The preferred distance L from the lower surface of container 6 to the lower surface of motlten metal stream 7
2Be 10～200mm, thereby can prevent the TiB that moves in the bottom of Al motlten metal 100
2Aggregated particle enters motlten metal stream 71, more preferably 30～150mm, more preferably 50～100mm.
The thickness L of preferred plate part 72
4Be 5～200mm, thereby can realize simultaneously guaranteeing of mechanical strength and space, more preferably 10～150mm, more preferably 10～100mm.
On the other hand, as long as the thickness of lower plate member 73 satisfies above-mentioned L
2Preferable range get final product, be not particularly limited.
Fig. 4 is the partial enlarged drawing of another configuration example of container 6 in the expression continuous casting rolling device 1 of the present invention shown in Figure 1 and feeding molten metal nozzle 7.
In Fig. 4, with a side of the upper surface that comprises motlten metal stream 71 in the feeding molten metal nozzle 7 (namely, plate part 72) upstream side end face is positioned at than a side of the lower surface that comprises motlten metal stream 71 (namely, lower plate member 73) upstream side end face arranges the extension 72b that extends to the flow direction upstream side of Al motlten metal 100 by the mode of the position of the flow direction upstream side of Al motlten metal 100.Here, in near the upper surface of the motlten metal stream 71 the upstream-side-end mode lower than the upper surface at other positions of motlten metal stream 71, a part that is provided with the upper surface by motlten metal stream 71 at extension 72b is the outstanding protuberance 72c that forms downwards.
As shown in Figure 4, by having the extension 72b of protuberance 72c, can prevent that the foreign matter (oxide-film 101 and the impurity 102 that exists) that exists on the top layer of Al motlten metal 100 from entering motlten metal stream 71 in this oxide-film 101.That is, in structure shown in Figure 4, the extension 72b with protuberance 72c is trapping foreign matter mechanism.Wherein, have the extension 72b of protuberance 72c in order to bring into play the function of trapping foreign matter mechanism, need to satisfy following (1)～(4).
(1) distance H from the liquid level of the Al motlten metal 100 in the container 6 to the upper surface of the motlten metal stream 71 that forms protuberance 72c
1Be 10～200mm.
To H
1In the reason of preset lower limit and the mode shown in Figure 2 to L
5The reason of preset lower limit is identical.Wherein, because with the distance L from the liquid level of the Al motlten metal 100 in the container 6 to the upper surface of motlten metal 71
3, and the difference in height L of upper surface (that is, the upper surface of the motlten metal stream 71 except protuberance 72c) that forms other positions of the upper surface of motlten metal stream 71 of protuberance 72c and motlten metal stream 71
8Be set as scope described later, therefore with H
1Lower limit be set as 10mm.
In addition, to L
3Adopt with mode shown in Figure 2 in L
3Identical consideration method is therefore preferably more than 5mm, more preferably at 10mm.
On the other hand, with H
1The upper limit be set as 200mm, be in order to satisfy the distance H from the liquid level of the Al motlten metal 100 in the container 6 to the lower surface of motlten metal stream 7
2And the distance L from the lower surface of container 6 to the lower surface of motlten metal stream 7
2Preferable range.In addition, H
2And L
2Preferable range and the H in the mode shown in Figure 2
2And L
2Preferable range identical.In addition, the height L of motlten metal stream
1Preferable range and the L in the mode shown in Figure 2
1Preferable range identical.
Preferred H
1Be 30～150mm, more preferably 30～100mm.
(2) the difference in height L of the upper surface (that is, the upper surface of the motlten metal stream 71 except protuberance 72c) at other positions of the upper surface of the motlten metal stream 71 of formation protuberance 72c and motlten metal stream 71
8Be 5～100mm.
With L
8Lower limit be set as in the reason of 5mm and the mode shown in Figure 2 L
5Lower limit to be set as the reason of 5mm identical.
On the other hand, because with L
3And H
1Be set as above-mentioned scope, therefore with L
8Higher limit be set as 100mm.
Preferred L
8Be 30～100mm.
(3) length L of the protuberance 72c on the flow direction of Al motlten metal 100
9Be 5～100mm.
With L
9Lower limit to be set as 5mm be in order to ensure mechanical strength.
On the other hand, with L
9Higher limit to be set as 100mm be for the distance L between the upstream side end face (that is, the upstream side end face of lower plate member 73) of the lower face side of the end of downstream side of the protuberance 72c on the flow direction that makes Al motlten metal 100 and motlten metal stream 71
11Satisfy the aftermentioned scope, if L
9Surpass 100mm, then extension 72b becomes long.
Preferred L
9Be 5～50mm, more preferably 5～30mm.
(4) distance L between the upstream side end face of the lower face side of the end of downstream side of the protuberance 72c on the flow direction of Al motlten metal 100 and motlten metal stream 71 (that is, the upstream side end face of lower plate member 73)
11Be 10～300mm.
With L
11The lower limit reason that is set as 10mm be, if L
11Less than 10mm, then with the height L of motlten metal stream 71
1Compare, with L
11The stream of suitable part becomes narrow, in the flow velocity increase of the Al of this part motlten metal 100, thus the TiB that will move in the bottom of Al motlten metal 100
2Aggregated particle is rolled.
On the other hand, with L
11The higher limit reason that is set as 300mm be, if L
11Surpass 300mm, then extension 72b becomes long.
Preferred L
11Be 10～100mm, more preferably 10～50mm.
In Fig. 4, the roughly the same height of upper surface of the motlten metal stream 71 of the lower surface of motlten metal stream 71 and formation protuberance 72c, but in mode shown in Figure 4, the preferred distance H from the liquid level of the Al motlten metal 100 in the container 6 to the upper surface of the motlten metal stream 71 that forms protuberance 72c
1With the liquid level 100 of Al motlten metal in container 6 distance H to the lower surface of motlten metal stream 71
2Satisfy following formula, thereby prevent that the foreign matter (oxide-film 101 and the impurity 102 that exists) that exists on the top layer of Al motlten metal 100 from entering motlten metal stream 71 in this oxide-film 101.
0mm≤H
1-H
2≤190mm
That is the lower surface of upper surface and motlten metal stream 71 that, is preferably formed the motlten metal stream 71 of protuberance 72c is that the upper surface of equal height or the motlten metal stream 71 that forms protuberance 72c is lower than the lower surface of motlten metal stream 71.Here, with H
1-H
2The upper limit to be set as 190mm be in order to make H
1And H
2Satisfy above-mentioned scope.
Wherein, if the distance H of protuberance 72c and container 6 bottom surfaces
3Height L than motlten metal stream 71
1Little, then with H
3The stream of suitable part becomes narrow, in the flow velocity increase of the Al of this part motlten metal 100, thus the TiB that will move in the bottom of Al motlten metal 100
2Aggregated particle is rolled.Therefore, preferred H
3And L
1Satisfy the relation shown in the following formula.
H
3≥L
1
The preferable range of other sizes among Fig. 4 is as described below.
The thickness L of plate part 72
4Preferable range and the L in the mode shown in Figure 2
4Preferable range identical.
The length L of preferred extension 72b
10Be 15～400mm.With L
10Lower limit to be set as 15mm be in order to satisfy L
9And L
11Preferable range.On the other hand, with L
10The higher limit reason that is set as 200mm be, if L
10Surpass 200mm, then extension 72b becomes long.
Preferred L
10Be 15～200mm.
Fig. 5 is the partial enlarged drawing of the another configuration example of container 6 in the expression continuous casting rolling device 1 of the present invention shown in Figure 1 and feeding molten metal nozzle 7.
Mode shown in Figure 5 is equivalent to the combination of Fig. 3 and mode shown in Figure 4, baffle plate 8 and the extension 72b with protuberance 72c are trapping foreign matter mechanisms, thereby can prevent from entering motlten metal stream 71 at the foreign matter (oxide-film 101 and impurity 102) that the top layer of Al motlten metal 100 exists, the most preferred from the side.In addition, the size of each one and Fig. 3 and mode shown in Figure 4 are identical.
The preferred structure that continuous casting rolling device of the present invention has is as described below.But, these structures are not essential structure.
Although not shown, preferably in the way of the first motlten metal stream 3, degasser is set, before carrying out filtration treatment, carry out the degassed processing (dehydrogenation gas disposal) in the Al motlten metal 100.As the dehydrogenation device of air, can use the rotary dehydrogenation device of air of the mode of selling on the markets such as SNIFF formula, GBF formula.
As the dehydrogenation gas disposal, also can use in Japanese kokai publication hei 5-51659 communique, the real technology of opening record in flat 5-49148 communique, the Japanese kokai publication hei 7-40017 communique etc. of Japan.
Join with chill roll 9,9 surfaces from the Al motlten metal 100 of feeding molten metal nozzle 7 ejections, and begin to solidify.Here, the Al motlten metal from the front end of feeding molten metal nozzle 7 to chill roll 9,9 surfaces form the motlten metal meniscus when mobile.If this motlten metal meniscus vibration then to chill roll 9,9 landing point vibration-generating, consequently, produces the different part of process of setting, thereby easily causes inhomogeneous, the micro-segregation of crystalline structure on the surface.This fault is also referred to as ripple mark, carry out cold rolling, intermediate annealing, cold sperm rolling after, when carrying out surface treatment and make supporting body for lithographic printing plate, cause that easily surface treatment is uneven.
Therefore, from reducing the viewpoint of ripple mark, for the dispersal point that makes the Al motlten metal is stabilized in a position, the leading section inclination that preferably makes feeding molten metal nozzle 7 is that the angle of at least lateral surface of leading section downside is with respect to the emission direction formation acute angle of Al motlten metal.For example can preferably use the method for in Japanese kokai publication hei 10-58094 communique, putting down in writing.
Fig. 6 is the schematic diagram of the preference of the shape of expression feeding molten metal nozzle and the position relationship between the roller.In addition, in Fig. 6, only illustrate plate part and the chill roll of feeding molten metal nozzle, the lower plate member of feeding molten metal nozzle and chill roll 9 also have same position relationship.
In Fig. 6, the oral area outer rim of the plate part 72 of feeding molten metal nozzle contacts with chill roll 9, is provided with the 72d of the section that dodges (chamfered section) that contacts that avoids with chill roll 9 in the oral area periphery of plate part 72 depression.That is, plate part 72 only contacts with chill roll 9 at leading section T.Preferably dodging section's (chamfered section) is arranged on the whole width of plate part 72.
Under the effect of such structure, can not give the gap as the space of motlten metal meniscus section change, therefore the aluminium alloy plate that does not have the outward appearance fault can be accessed, and the supporting body for lithographic printing plate that the outward appearance fault is subject to further inhibition can be accessed.
In addition, the amplitude when reducing meniscus vibration preferably reduces the leading section of feeding molten metal nozzle (the more specifically plate part of feeding molten metal nozzle and lower plate member) and the distance on chill roll surface.Therefore, the state that contacts all the time with respect to the leading section of the acutangulate feeding molten metal nozzle of the emission direction structure of Al motlten metal (the more specifically plate part of feeding molten metal nozzle and lower plate member) and chill roll surface of the angle of the lateral surface of preferred above-mentioned downside (preferred downside and upside) ideally.
Particularly, for example can preferably enumerate following mode: the plate part and the lower plate member that consist of the feeding molten metal nozzle can be distinguished mobile along the vertical direction, under the effect of the pressure of Al motlten metal, to the pressurization of this plate part and this lower plate member, thereby press to the surface of the chill roll of adjacency.For example, can preferably use the mode of in TOHKEMY 2000-117402 communique, putting down in writing.
Thus, the feeding molten metal nozzle (more specifically, the plate part of feeding molten metal nozzle and lower plate member) leading section and chill roll join all the time, consequently, the shape maintains of motlten metal meniscus section at certain state, is subject to the supporting body for lithographic printing plate that further suppresses thereby can access the outward appearance fault.
Even make like this motlten metal meniscus stable, if the motlten metal in the feeding molten metal nozzle is mobile inhomogeneous, then cast continuously and the aluminium alloy plate made also can become inhomogeneous.Therefore, need to make flowing evenly of the interior motlten metal of feeding molten metal nozzle, since a pair of chill roll gap each other minimum to several mm to about the 10mm, therefore therebetween feeding molten metal nozzle also forms structure as thin as a wafer, the motlten metal stream in this nozzle also narrows down.Therefore, the obstruction of the Al motlten metal in the motlten metal stream directly cause the Al motlten metal flow inhomogeneous.
In order to prevent the obstruction of the Al motlten metal in the motlten metal stream, the wetability of preferred molten metal supply nozzle inner surface and Al motlten metal is low.For this reason, the inner surface of preferred molten metal supply nozzle is by consisting of the low material of the wetability of Al motlten metal, and has suitable concavo-convex.Method to the roughness of regulation feeding molten metal nozzle inner surface in Japanese kokai publication hei 10-225750 communique is put down in writing.
Particularly, apply in advance at the inner surface of the feeding molten metal nozzle that joins with the Al motlten metal preferably that to contain medium particle diameter be that 5～20 μ m and mode particle diameter are the parting compound of aggregate particles of the size distribution of 4～12 μ m.As the parting compound of the obstruction that is difficult for causing the Al motlten metal, such as enumerating the parting compound that zinc oxide, boron nitride (BN) etc. is used for aggregate.Wherein, the parting compound that preferably boron nitride is used for aggregate.For example, can preferably use the method for in Japanese kokai publication hei 11-192537 communique, putting down in writing.
Fig. 7 is that the expression front end is the schematic diagram of another example of the feeding molten metal nozzle of movable structure.Fig. 7 (a) is top view, and Fig. 7 (b) is side view.
Feeding molten metal nozzle shown in Figure 7 fixes plate part 72 and lower plate member 73 by pole member 74, and the front end of plate part 72 and lower plate member 73 can be take pole member 74 as fulcrum thus, swings slightly according to the pressure of Al motlten metal.Therefore, under the effect of the pressure of Al motlten metal, the front end of plate part 72 and lower plate member 73 is contacted respectively with chill roll.
Chill roll is not particularly limited, such as existing known structures such as the chill rolls that can use core shell structure made of iron.When using the chill roll of core shell structure, by in the stream that is arranged between the core shell by cooling water, thereby can improve the cooling capacity on chill roll surface.In addition, by further pressing down the aluminium after solidifying, the thickness and precision that can make aluminium alloy plate well with desired consistency of thickness.
Aluminium in the chill roll surface solidification is easily like this affixed with chill roll, can produce the situation that is not easy to cast continuously and stably.Therefore, in the present invention, preferably at the surface of chill roll coating parting compound.The material of preferred superior for heat resistance for example, can preferably be enumerated the material that contains carbon graphite as parting compound.The method of coating is not particularly limited, and for example, can preferably enumerate the method with suspension (preferred water suspension) spraying and applying of carbon graphite particle.Spraying and applying can be supplied with parting compound to chill roll in non-contacting mode, and is therefore preferred in this.
Here, if the thickness and the width of chill roll and/or circumferentially different of the parting compound of coating, the speed that then moves to the heat of chill roll is affected, thereby existence inhomogeneous that causes the inhomogeneous or Fe of crystal grain and Si, therefore in the present invention, preferably make the even thickness of the parting compound of coating.
Particularly, for example, preferably enumerate the method that the scraper plate made by refractory material or stable on heating cloth and chill roll surface are contacted with certain pressure.In addition, in the situation that does not have the danger that directly contacts with motlten metal, can use the cloth such as kapok, thereby realize homogenising.
In addition, because parting compound or caught by homogenising mechanisms such as scraper plates, move on the surface of the aluminium alloy plate that perhaps forms to continuous casting, therefore preferably regularly supplies with parting compound to the chill roll surface.
In addition, if the feeding molten metal nozzle contacts with chill roll is inhomogeneous on width, then the parting compound part with the chill roll surface scrapes, and consequently, it is inhomogeneous that the thickness of the parting compound on roller surface easily becomes, and then crystal grain also easily becomes inhomogeneous.
Therefore, in the present invention, the oral area outer rim of preferred molten metal supply nozzle does not contact with chill roll, from reducing the viewpoint of above-mentioned ripple mark, more preferably only contacts at the leading section of feeding molten metal nozzle.
[the lithographic plate supporting mass manufacture method of aluminium alloy plate]
Use in the manufacture method of aluminium alloy plate at the lithographic plate supporting mass, use continuous casting rolling device of the present invention to make continuous casting plate (aluminium alloy plate), afterwards, by common step implement cold rolling, intermediate annealing, cold sperm is rolling and flatness correcting.Below, above-mentioned steps is described and the preferred composition of the Al motlten metal that uses in the manufacturing of continuous casting plate (aluminium alloy plate).
[the preferred composition of Al motlten metal]
Below, the preferred composition of Al motlten metal is described.
Si is as inevitable impurity and contain element about 0.03～0.1wt% in the raw material cast alumin(i)um, in order to prevent producing fluctuation because of raw material difference, often has a mind to indium addition.In addition, Si is in solid solution condition in aluminium, and perhaps the form with intermetallic compound or independent precipitate exists.
In the present invention, the Si amount in the preferred Al motlten metal is 0.04～0.15wt%.In addition, the above value of 0.10wt% is the Si in cast alumin(i)um, and foundry alloy implements by adding separately.
Fe amount of solid solution in aluminium is few, and most of form with intermetallic compound exists.In addition, Fe has the effect of the mechanical strength that improves aluminium alloy, on the large impact of intensity generation of supporting mass.
If the Fe amount is very few, then mechanical strength is excessively low, when lithographic plate is installed on the printing rubber roll of printing machine, causes that easily version is damaged.In addition, when printing in a large number at a high speed, cause easily that too version is damaged.
On the other hand, if the Fe amount is too much, then become necessary above high strength, when lithographic plate was installed on the printing rubber roll of printing machine, conformability was inferior, caused easily that in press version is damaged.In addition, if more than for example 1.0wt%, then easily producing in rolling way, the amount of Fe breaks.
In the present invention, the Fe amount in the preferred Al motlten metal is 0.10～0.50wt%.
Cu is the important element of control electrolysis matsurface processing.In addition, Cu is the element of very easy solid solution, and seldom a part exists with the form of intermetallic compound.
In the present invention, uniformity angle from the electrolysis matsurface, Cu amount in the preferred Al motlten metal is more than 0.001wt%, diameter, the uniformity of hole diameter and then the viewpoint of resistance to soiling in the hole that is produced by the processing of electrolysis matsurface from nitric acid liquid are preferably below 0.050wt%.
Breaking in order to prevent from casting, preferred Al motlten metal contains the element (for example, Ti, B) of miniaturization crystal grain.This is because if the sufficient crystallising miniaturization of when casting, even then after cold sperm is rolling, the width of crystal grain also can diminish, and is preferred therefore.
For example, can contain Ti in the scope of 0.003～0.05wt%.In addition, can contain B in the scope of 0.001～0.02wt%.
In addition, the remainder of Al motlten metal is made of Al and inevitable impurity.As inevitable impurity, such as enumerating Mg, Mn, Zn, Cr, Zr, V, Zn, Be etc.Scope below 0.05wt% contains above-mentioned element respectively.
Inevitably the major part of impurity contains in cast alumin(i)um.If inevitably impurity for example is impurity contained in the cast alumin(i)um of Al purity 99.7wt%, then can not destroy effect of the present invention.Concerning inevitable impurity, such as the impurity that also can contain the amount of in " AluminumAlloys:Structurand properties " (1976) of L.F.Mondolfo work etc., putting down in writing.
Next, to cold rolling, intermediate annealing, cold sperm is rolling and the step of flatness correcting describes.
[cold rolling]
At continuous casting rolling device 1 shown in Figure 1, suitably cut off by cutting machine (not shown), the continuous casting plate (aluminium alloy plate) 200 that is wound into coiled type by coiler device 10 is carried out cold rolling.Cold rolling is to make continuous casting rolling device 1 shown in Figure 1 manufacture the step of the thickness minimizing of continuous casting plate (aluminium alloy plate) 200.Thus, will cast plate (aluminium alloy plate) 200 continuously and make desired thickness.In addition, cold rolling can be undertaken by existing known method.Fig. 8 is that expression is for the schematic diagram of the example of the cold rolling mill of cold rolling.Cold rolling mill 11 shown in Figure 8 a pair of Rolling roller 14 by being rotated under the effect of backing roll 15 respectively to exerting pressure sending between coil 12 and the coiling coil 13 the continuous casting plate (aluminium alloy plate) 200 of carrying, thereby carries out cold rolling.
[intermediate annealing]
After implementing cold rolling, carry out intermediate annealing.Intermediate annealing is the step that the continuous casting plate (aluminium alloy plate) after cold rolling is implemented is heat-treated.
Originally, continuous casing and existing the use fixedly method of casting mold are different, can make rapidly cooled and solidified of motlten metal.Consequently, with existing use fixedly the method for casting mold compare, can make through casting the extraordinarily miniaturization of crystal grain in the resulting continuous casting plate (aluminium alloy plate) continuously.But the size of crystal grain is still large in this case, and after cold sperm is rolling, and then when making supporting body for lithographic printing plate via the matsurface processing, easily the size because of crystal grain produces outward appearance fault (surface treatment is uneven).
Therefore, accumulate machining deformation in above-mentioned cold rolling operation, by carrying out the intermediate annealing operation, the dislocation that will accumulate in the cold rolling operation discharges, and causes recrystallization afterwards, thereby can make the further miniaturization of crystal grain.Particularly, can come the crystallization control grain according to the condition of the working modulus of cold rolling operation and the heat-treat condition of intermediate annealing operation (wherein, temperature, time and programming rate).For example, when carrying out the annealing of continous way, usually under 300～600 ℃, heat below 10 minutes, but preferably below 6 minutes, more preferably under 450～550 ℃, heat below 2 minutes 400～600 ℃ of lower heating.In addition, usually programming rate is set as about 0.5～500 ℃/minute, but by programming rate being set as more than 10～200 ℃/second and the retention time after will heating up is set as the short time (in 10 minutes, preferred 2 minutes in), thereby can promote the miniaturization of crystal grain.
When having used batch annealing, usually under 300～550 ℃, heat more than 5 hours, but preferably more than 10 hours, more preferably under 350～490 ℃, heat more than 10 hours 300～500 ℃ of lower heating.The upper limit of preferred at each temperature annealing time is below 40 hours.
Intermediate annealing can be undertaken by existing known method, particularly, can use the method for record in Japanese kokai publication hei 6-220593 number, Japanese kokai publication hei 6-210308 number, Japanese kokai publication hei 7-54111 number, Japanese kokai publication hei 8-92709 number each communique etc.
[cold sperm is rolling]
After the annealing, carry out cold sperm rolling in force.Cold sperm is rolling to be the step that the thickness of the continuous casting plate (aluminium alloy plate) after the intermediate annealing is reduced.Thickness after the preferred rolling enforcement of cold sperm is 0.1～0.5mm.
Cold rolling can be undertaken by existing known method.For example, can be undertaken by the method identical with the cold rolling that before above-mentioned intermediate annealing, carries out.
[flatness correcting]
Flatness correcting is the operation that the flatness of continuous casting plate (aluminium alloy plate) is corrected.
Flatness correcting can be undertaken by existing known method.For example, can carry out with apparatus for correcting such as roll leveller, tension level(l)ers.
In addition, this flatness correcting can be cut into aluminium alloy plate the laggard row of sheet, but the viewpoint from boosting productivity is preferably carried out under the state of continuous coil.
Fig. 9 is the schematic diagram of the example of expression apparatus for correcting.Apparatus for correcting 20 shown in Figure 9 is by comprising the leveling section 21 of working roll 24, to applying tension force and improve simultaneously flatness at the continuous casting plate (aluminium alloy plate) 200 of sending conveying between coil 22 and the coiling coil 23.Thereafter, by cutting machine 25 with the wide width that is adjusted to regulation of plate.
In addition, for the wide width that is processed into regulation of plate, also can carry out the cutting action by line of cut.Cutting action can be undertaken by existing known method.
In addition, for the damage that prevents from producing because of aluminium alloy plate friction each other, also can carry out arranging on the surface of aluminium alloy plate the oil film formation operation of thin oil film.As required, oil film can suitably adopt the material of volatility or fixedness.
By machinery or electricity or chemistry or electrochemistry or make up above-mentioned two or more mode and make the aluminium alloy plate rough surface face that is obtained by above-mentioned steps, thereby make supporting body for lithographic printing plate.At this supporting body for lithographic printing plate photonasty is set and films, by image exposure, development, plate-making, thereby finish photosensitive lithographic plate.Along with the raising of the surface quality that casts plate (aluminium alloy plate) continuously, this photosensitive lithographic plate can be made high-quality.
Claims (15)
1. the continuous casting rolling device of an aluminium alloy plate, it possesses at least:
The feeding molten metal nozzle that has the motlten metal stream in inside; Be supplied to a pair of chill roll of al alloy molten metal from this feeding molten metal nozzle; And container from al alloy molten metal to this feeding molten metal nozzle that supply with,
The continuous casting rolling device of described aluminium alloy plate is characterised in that,
Be provided with the mechanism of the foreign matter that exists be used to the top layer that is captured in al alloy molten metal at the upstream side of described feeding molten metal nozzle,
With the upper surface equal height that is positioned near the described motlten metal stream the upstream-side-end with described feeding molten metal nozzle or than the mode of the top side's of this upper surface position, dispose the baffle plate that extends and satisfy following condition from the upstream side end face of this feeding molten metal nozzle to the flow direction upstream side of al alloy molten metal along general horizontal direction, this baffle plate is described capture mechanism
The condition that satisfies be distance from the liquid level of the al alloy molten metal in the described container to described baffle plate lower surface more than 5mm, and the length of the described baffle plate on the flow direction of al alloy molten metal is 10～100mm.
2. the continuous casting rolling device of aluminium alloy plate according to claim 1 is characterized in that,
The thickness of described baffle plate is 2～10mm.
3. the continuous casting rolling device of an aluminium alloy plate, it possesses at least:
The feeding molten metal nozzle that has the motlten metal stream in inside; Be supplied to a pair of chill roll of al alloy molten metal from this feeding molten metal nozzle; And container from al alloy molten metal to this feeding molten metal nozzle that supply with,
The continuous casting rolling device of described aluminium alloy plate is characterised in that,
Be provided with the mechanism of the foreign matter that exists be used to the top layer that is captured in al alloy molten metal at the upstream side of described feeding molten metal nozzle,
At described feeding molten metal nozzle, be positioned at than the upstream side end face of a side of the lower surface that the comprises described motlten metal stream mode by the position of the flow direction upstream side of al alloy molten metal with the upstream side end face of a side of the upper surface that comprises described motlten metal stream, be provided with the extension that extends and satisfy following condition to the flow direction upstream side of al alloy molten metal
At this extension, near so that the upper surface mode lower than the upper surface at other positions of described motlten metal stream of the described motlten metal stream the upstream-side-end, a part that is provided with the upper surface by described motlten metal stream is the outstanding protuberance that forms and satisfy following condition downwards, this extension is described capture mechanism
The condition that satisfies is 10～200mm for the distance from the liquid level of the al alloy molten metal in the described container to the upper surface of the described motlten metal stream that forms described protuberance, the length of the described protuberance on the flow direction of al alloy molten metal is 5～100mm, the difference in height of upper surface that forms other positions of the upper surface of described motlten metal stream of described protuberance and described motlten metal stream is 5～100mm, and the distance between the upstream side end face of the lower face side of the end of downstream side of the described protuberance on the flow direction of al alloy molten metal and described motlten metal stream is 10～300mm.
4. the continuous casting rolling device of aluminium alloy plate according to claim 3 is characterized in that,
Be made as H in the distance with the upper surface from the liquid level of the al alloy molten metal in the described container to the described motlten metal stream that forms described protuberance
1, the distance from the liquid level of the al alloy molten metal in the described container to the lower surface of described motlten metal stream is made as H
2The time, satisfy following condition,
0mm≤H
1-H
2≤190mm。
5. the continuous casting rolling device of aluminium alloy plate according to claim 3 is characterized in that,
Also to be positioned at the upstream side end face equal height of described feeding molten metal nozzle or than the mode of the top side's of this upstream-side-end position, dispose the baffle plate that extends and satisfy following condition to the flow direction upstream side of al alloy molten metal, described extension and this baffle plate consist of described capture mechanism
The condition that satisfies be distance from the liquid level of the al alloy molten metal in the described container to described baffle plate lower surface more than 5mm, and the length of the described baffle plate on the flow direction of al alloy molten metal is 10～100mm.
6. the continuous casting rolling device of aluminium alloy plate according to claim 4 is characterized in that,
Also to be positioned at the upstream side end face equal height of described feeding molten metal nozzle or than the mode of the top side's of this upstream-side-end position, dispose the baffle plate that extends and satisfy following condition to the flow direction upstream side of al alloy molten metal, described extension and this baffle plate consist of described capture mechanism
The condition that satisfies be distance from the liquid level of the al alloy molten metal in the described container to described baffle plate lower surface more than 5mm, and the length of the described baffle plate on the flow direction of al alloy molten metal is 10～100mm.
7. the continuous casting rolling device of aluminium alloy plate according to claim 5 is characterized in that,
The thickness of described baffle plate is 2～10mm.
8. the continuous casting rolling device of aluminium alloy plate according to claim 6 is characterized in that,
The thickness of described baffle plate is 2～10mm.
9. the continuous casting rolling device of aluminium alloy plate according to claim 1 is characterized in that,
Distance from the liquid level of the al alloy molten metal in the described container to the lower surface of described motlten metal stream is 15～250mm.
10. the continuous casting rolling device of aluminium alloy plate according to claim 2 is characterized in that,
Distance from the liquid level of the al alloy molten metal in the described container to the lower surface of described motlten metal stream is 15～250mm.
11. the continuous casting rolling device of aluminium alloy plate according to claim 5 is characterized in that,
Distance from the liquid level of the al alloy molten metal in the described container to the lower surface of described motlten metal stream is 15～250mm.
12. the continuous casting rolling device of aluminium alloy plate according to claim 1 is characterized in that,
Distance from the lower surface of described container to the lower surface of described motlten metal stream is 10～200mm.
13. the continuous casting rolling device of aluminium alloy plate according to claim 2 is characterized in that,
Distance from the lower surface of described container to the lower surface of described motlten metal stream is 10～200mm.
14. the continuous casting rolling device of aluminium alloy plate according to claim 5 is characterized in that,
Distance from the lower surface of described container to the lower surface of described motlten metal stream is 10～200mm.
15. a right to use requires 1 described continuous casting rolling device to make the method that the lithographic plate supporting mass is used aluminium alloy plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008304157A JP5199042B2 (en) | 2008-11-28 | 2008-11-28 | Aluminum alloy plate manufacturing equipment for lithographic printing plates |
| JP2008-304157 | 2008-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745613A CN101745613A (en) | 2010-06-23 |
| CN101745613B true CN101745613B (en) | 2013-09-18 |
Family
ID=42326242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910224954 Expired - Fee Related CN101745613B (en) | 2008-11-28 | 2009-11-26 | Device for manufacturing aluminum alloy plate for lithographic printing plate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5199042B2 (en) |
| CN (1) | CN101745613B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231049A (en) * | 2013-05-13 | 2013-08-07 | 德阳宏广科技有限公司 | Automatic slag removing device of pouring boiler |
| JP5455099B1 (en) * | 2013-09-13 | 2014-03-26 | 大日本印刷株式会社 | Metal plate, metal plate manufacturing method, and mask manufacturing method using metal plate |
| CN104190887B (en) * | 2014-09-15 | 2017-06-06 | 晟通科技集团有限公司 | Combination lip device |
| CN110561902B (en) * | 2019-08-29 | 2024-03-29 | 荆门市国弘模具有限公司 | Automatic production system for printing tablecloth |
| CN113245517A (en) * | 2020-02-07 | 2021-08-13 | 晟通科技集团有限公司 | Casting nozzle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771819A (en) * | 1985-04-12 | 1988-09-20 | Nippon Metal Industry Co., Ltd. | Manufacturing apparatus for sheet metal according to continuous casting |
| CN1895908A (en) * | 2005-07-14 | 2007-01-17 | 富士胶片株式会社 | Lithographic printing plate support, method of manufacturing the same, and presensitized plate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516709A (en) * | 1978-07-20 | 1980-02-05 | Furukawa Electric Co Ltd:The | Continuous casting and rolling apparatus |
| JPH01151945U (en) * | 1988-04-06 | 1989-10-19 | ||
| JPH1147892A (en) * | 1997-07-29 | 1999-02-23 | Fuji Photo Film Co Ltd | Continuous casting and rolling apparatus |
-
2008
- 2008-11-28 JP JP2008304157A patent/JP5199042B2/en not_active Expired - Fee Related
-
2009
- 2009-11-26 CN CN 200910224954 patent/CN101745613B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771819A (en) * | 1985-04-12 | 1988-09-20 | Nippon Metal Industry Co., Ltd. | Manufacturing apparatus for sheet metal according to continuous casting |
| CN1895908A (en) * | 2005-07-14 | 2007-01-17 | 富士胶片株式会社 | Lithographic printing plate support, method of manufacturing the same, and presensitized plate |
Non-Patent Citations (3)
| Title |
|---|
| JP平1-151945U 1989.10.19 |
| JP昭55-16709A 1980.02.05 |
| JP特开平11-47892A 1999.02.23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5199042B2 (en) | 2013-05-15 |
| JP2010125498A (en) | 2010-06-10 |
| CN101745613A (en) | 2010-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101332494B (en) | Method and apparatus for manufactuirng aluminum alloy strip for lithographic printing plates | |
| CN101745613B (en) | Device for manufacturing aluminum alloy plate for lithographic printing plate | |
| JP4174524B2 (en) | Aluminum alloy plate manufacturing method and aluminum alloy plate | |
| WO2006100858A1 (en) | Casting nozzle | |
| JP4231529B2 (en) | Aluminum alloy plate manufacturing method and aluminum alloy plate | |
| EP0525932B1 (en) | Compound roll and method of producing same | |
| JPWO2005064025A1 (en) | Method for producing Al-Mg-Si based aluminum alloy plate excellent in bake hardness | |
| JP4174526B2 (en) | Aluminum alloy plate manufacturing method and aluminum alloy plate | |
| JP2008043958A (en) | Aluminum continuous casting and rolling apparatus, and manufacturing method of aluminum alloy plate for lithographic form plate supporting body | |
| JP4231530B2 (en) | Aluminum alloy plate manufacturing method and aluminum alloy plate | |
| JP3549080B2 (en) | Method and apparatus for manufacturing a lithographic printing plate support | |
| JP4174525B2 (en) | Aluminum alloy plate manufacturing method and aluminum alloy plate | |
| JP4242429B2 (en) | Aluminum alloy plate manufacturing method and aluminum alloy plate | |
| US20060213589A1 (en) | Method of manufacturing a support for a lithographic printing plate | |
| EP0755311B1 (en) | Method for improving surface quality of electromagnetically cast aluminum alloys and products therefrom | |
| JP3685360B2 (en) | Method for producing aluminum alloy lithographic printing plate support | |
| JP2000052000A (en) | Method for continuously casting and rolling aluminum alloy thin sheet | |
| JP4779430B2 (en) | Method and apparatus for manufacturing quenched ribbon | |
| WO2023084864A1 (en) | Aluminum alloy ingot, aluminum alloy material, and method for manufacturing aluminum alloy material | |
| JP4164185B2 (en) | Method for producing Cu-containing stainless steel slab | |
| JPH0647502A (en) | Manufacture of rapidly solidified high cr-al steel strip | |
| TW202304610A (en) | Aluminum alloy thick plate | |
| JP2017177143A (en) | Method for manufacturing aluminum alloy material | |
| JPH10263761A (en) | Nozzle for manufacturing rapidly solidified thin strip | |
| JP2000158836A (en) | Aluminum alloy support for lithographic printing plate and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20171126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |