CN101613821A - A kind of aluminium alloy, by its planographic printing plate that forms and preparation method - Google Patents
A kind of aluminium alloy, by its planographic printing plate that forms and preparation method Download PDFInfo
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- CN101613821A CN101613821A CN200910139487A CN200910139487A CN101613821A CN 101613821 A CN101613821 A CN 101613821A CN 200910139487 A CN200910139487 A CN 200910139487A CN 200910139487 A CN200910139487 A CN 200910139487A CN 101613821 A CN101613821 A CN 101613821A
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- alloy
- printing plate
- planographic printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/04—Printing plates or foils; Materials therefor metallic
- B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
- B41N1/083—Printing plates or foils; Materials therefor metallic for lithographic printing made of aluminium or aluminium alloys or having such surface layers
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
Abstract
The present invention relates to a kind of Al alloy that is fit to be processed into planographic printing plate and by the preparation method of its planographic printing plate that makes and planographic printing plate, described alloy has the following composition of representing with weight %: Fe, 0.16-0.40Si, 0.25Cu at the most, 0.01Mn at the most, 0.05Ti at the most, 0.015Mg at the most, 0.02-0.10Zn, 0.06 unspecified other components at the most, every kind at the most 0.03, surplus is Al, and wherein minimum Al content is 99.3.
Description
Technical field
The present invention relates to be fit to be processed into planographic printing plate (lithographic sheet) alloy, be used in particular for the thin preparation method who rolls alloy and this type of planographic printing plate of aluminium strip form of offset plate making machine (offset printing plate maker).
Background technology
Known offset plate making machine uses the thin aluminium alloy of aluminium strip form that rolls.
To roll aluminium strip and be processed into planographic printing plate in order to approach, at first will remove the greasy dirt of platemaking machine or aluminium strip is carried out etching, this carries out in alkaline solution usually.This processing and preparing is used for the aluminium surface of boarding, and makes surperficial little defective planarization.
Subsequently, carry out electrochemistry boarding (electrograining) and have the surface topography that curls up hemispherical depression with generation.This is carrying out based on hydrochloric acid or in based on the electrolytic solution of nitric acid usually.
Use alternating-current (AC) to carry out the electrochemistry boarding by the electrolyzer that comprises described aluminium strip.The electrochemical reaction that per semi-period takes place is removed aluminium effectively by solvency action from the surface.
Perhaps, can be by for example brushing, with the aluminium strip mechanical alligatoring in surface.Yet this processing is more rare.
The function of the depression that the aluminium strip surface forms is the surface-area that increases aluminium strip, and keeps water.In other words, owing to there is depression, make the aluminium strip possess hydrophilic property.
Subsequently, can carry out decontamination step, thereby remove the aluminium hydroxide stain that in the electrochemistry boarding course of processing, forms.
Next, aluminium strip is made anodizing.This causes growing the porous anodic oxide at the sunk surface of aluminium strip.Wearing layer is provided thus, thereby improves the life-span of the planographic printing plate printing quality that forms by described aluminium strip.This also can make photosensitive coating adhere to better, and makes the unreactiveness of described plate higher, and prolongs its preservation period thus.
Subsequently, usually to aluminium strip coating photosensitive polymer coating.This coating draining and oil suction.Planographic printing plate needs oil suction, and this is an oil base because of printing ink.
In this step, planographic printing plate comprises the hydrophilic anode aluminium lamination that has covered the oleophylic photoactive layer.
With its simplest form,,, form pattern for example by exposure by removing partial coating.This means that described coating must be easy to remove, to expose hydrophilic anode layer in its lower section.Yet described coating also must have wear resistance, thereby keeps clear pattern during printing is carried out.
Therefore, the surface-functional that importantly makes the aluminium strip that forms planographic printing plate have enough intensity and be fit to.
Term " surface-functional " is to be used to describe material good electrochemistry boarding takes place, thereby the uniform distribution of depression size is provided and does not form the ability of any surperficial streak or directive property.This quality for the gained printed patterns is extremely important.
Electrolytic solution during most of platemaking machine uses are processed as the electrochemistry boarding based on the solution of HCl.Yet, use based on HNO
3Electrolytic solution also be known.The mechanism of boarding processing is different in various electrolytic solution.The material that all can carry out good electrochemistry boarding in two kinds of electrolytic solution is favourable.
In lithographic plate-making industry, two kinds of alloys of known special use.First kind of alloy is called as AA1050, and has composition as shown in table 1 below.AA1050 has good electrochemistry boarding performance.
If claim that material has " good electrochemistry boarding performance ", mean that then this material has the ability that produces the uniform surface of depression under wide in range condition and range.This type of material also should be able to carry out the electrochemistry boarding in based on the electrolytic solution of hydrochloric acid or nitric acid.
Table 1
AA1050/AA1050A
| Alloy | ??Fe％ | ??Si％ | ??Cu％ | ??Mn％ | ??Mg％ | ??Zn％ | ??Ti％ | ??V％ | Other % | ??Al％ |
| ??AA1050 | At the most 0.40 | At the most 0.25 | At the most 0.05 | At the most 0.05 | At the most 0.05 | At the most 0.05 | At the most 0.03 | At the most 0.05 | At the most 0.03 | At least 99.50 |
| ??AA1050A | At the most 0.40 | At the most 0.25 | At the most 0.05 | At the most 0.05 | At the most 0.05 | At the most 0.07 | At the most 0.05 | Uncertain | At the most 0.03 | At least 99.50 |
Second kind of alloy is called as AA3XXX, and comprises having AA3103 or the AA3003 alloy of forming shown in following table 2 and the table 3.Compare with the intensity of AA1050, the intensity of AA3XXX is improved.Yet the electrochemistry boarding performance of AA3XXX is not as AA1050 type alloy.
Table 2
AA3103
| Alloy | ??Fe％ | ??Si％ | ??Cu％ | ??Mn％ | ??Mg％ | ??Zn％ | ??Zr+ ??Ti ??％ | ??Cr％ | Other % | ??Al％ |
| ??AA3103 | At the most 0.7 | At the most 0.50 | At the most 0.10 | ??0.9- ??1.5 | At the most 0.30 | At the most 0.20 | At the most 0.10 | At the most 0.10 | Every kind at the most 0.05, total amount at the most 0.15 | Surplus |
Table 3
AA3003
| Alloy | ??Fe％ | ??Si％ | ??Cu％ | ??Mn％ | ??Mg％ | ??Zn％ | ??Ti％ | ??Others | ??Al |
| ??AA3003 | At the most 0.7 | At the most 0.6 | ??0.05-0.20 | ??1.0-1.5 | Uncertain | At the most 0.10 | Uncertain | Every kind at the most 0.05%, total amount at the most 0.15% | Surplus |
AA1050 type alloy uses in Europe, Asia and South America market usually.The alloy of this type is based on HCl and HNO
3Solution in all can be by electrochemistry boarding well, but lower with other alloy phase specific tenacitys.It is believed that when this alloy of use is formed for carrying out the planographic printing plate of long period printing, this will be a potential problem.
AA3XXX type alloy uses in North America usually.This type of alloy difficulty carries out the electrochemistry boarding, therefore when can the application machine alligatoring adding man-hour, more often uses this type of alloy.
The AA3XXX alloy can electrochemistry boarding in HCl, but electrochemistry boarding processing may produce surperficial streak (streakiness).Therefore, this alloy has relatively poor relatively electrochemistry boarding performance, but has high green strength (raw strength) and high baking intensity (bake strength).
Usually improve the wear resistance of photosensitive coating by the baking planographic printing plate.Yet this processing may produce detrimentally affect to the intensity of aluminium base.This processing behavior is more common in North America, and helps to explain the increase of A3XXX use.
Usually use standard resistance to bake test (standard bake test) is measured the baking intensity of alloy.Described standard resistance to bake test comprises alloy 240 ℃ of heating 10 minutes.
Focus on, the alloy that is used to be processed into planographic printing plate does not take place significant softening during toasting, and the intensity of this alloy can not be adversely affected like this.Significantly softening that aluminium alloy base plate takes place can exert an adverse impact to the three-dimensional nature (dimensional properties) of printing plate with relevant microstructure change.With regard to fatigue failure (failure by fatigue), this may be deleterious.
Generally speaking, the alloy with good electrical chemistry boarding performance that has now found that does not have required intensity, and the alloy with desirable strength has bad electrochemistry boarding performance.
Summary of the invention
According to a first aspect of the invention, this paper provides the Al alloy that is fit to be processed into planographic printing plate, and described alloy has following composition (in weight %):
Fe.0.16-0.40
Si, at the most 0.25
Cu, at the most 0.01
Mn, at the most 0.05
Ti, at the most 0.015
Mg.0.02-0.10
Zn, at the most 0.06
Unspecified other components, every kind at the most 0.03
Surplus is Al, and wherein the minimum content of Al is 99.3.
Because have the aluminium of high per-cent in the alloy, the level of other compositions is corresponding lower.This makes that the versatility of alloy when reclaiming with the back is better.
Preferably, minimum aluminum content (that is the minimum content of aluminium) is 99.45wt%.More preferably, minimum aluminum content is 99.50wt%.
By making alloy have the aluminium of higher weight per-cent, can further improve the versatility of described alloy when reclaiming with the back.
Magnesium is used to improve the boarding performance of alloy, and its intensity to alloy has limited influence.Yet magnesium can improve virgin alloy really and through the mechanical property (for example, intensity) of baking alloy, so its existence in alloy is very important.Magnesium is limited in the scope of 0.10wt% very importantly, this is because it does not damage the versatility of described alloy when reclaiming with the back.
Alloy of the present invention can comprise the magnesium of 0.099wt% at the most.
Preferably, Mg content is in the scope of 0.02-0.05wt%.
Zinc also can improve the boarding performance of alloy, and also the intensity to alloy has limited influence.The contriver finds that the zinc of 0.05 weight % can be to the electrochemical properties generation advantageous effect of alloy at the most in the aluminium alloy.
Preferably, the minimum content of zinc is 0.02wt%.
The ratio of zinc and magnesium can be substantially in the scope of 0.1-2.3 in the alloy.
Have now found that by the content of control zinc and magnesium, can make the gained aluminium alloy have good electrochemistry boarding performance.
Make and exist iron that two purposes are arranged in the aluminium alloy.At first, be in order to ensure the intermetallic compound (iron rich intermetallics) that forms rich iron, this is most important for generate even sunk structure during electrochemistry boarding (alligatoring) step of plate-making processing.Secondly, be in order to ensure the iron that has capacity in the sosoloid in the material, this helps producing good temperature stability, especially the intensity after the plate baking is kept particularly advantageous.
Advantage with alloy of minimum iron level is its second phase intermetallic compound that guarantees to exist capacity in alloy structure (2nd phase intermetallics), and this only to be the solubleness level of iron in aluminium could be realized under the transcendental situation.
The iron level that improves in the alloy is favourable, and this is because iron provides hardening effect in aluminium alloy, improves the intensity of alloy thus.
Yet the upper limit that iron level exceeds 0.4wt% is not favourable, and this is because further interpolation does not have more favourable influence to aluminium alloy structure, and also very little to the further raising of intensity.Another shortcoming that iron level is brought up to greater than 0.4wt% is that it damages the versatility of described alloy when reclaiming with the back.
Have now found that the copper that exists in the aluminium alloy can influence the depression pattern of alligatoring, but can improve the strength of materials under original and the baking condition but then.The inventor finds, if with the weight percent of copper remain on 0.01 or below, then the intensity of this alloy can improve because of there being copper, also the detrimentally affect of copper to the depression pattern can be remained in the minimum extent simultaneously.
The titanium that exists in the aluminium alloy is necessary for the boarding size of guaranteeing fully to control on the metallurgy (grain size).Yet too much titanium can produce detrimentally affect to the chemical property of alloy.The inventor finds that if the weight percent of titanium is no more than 0.015, then this alloy can be benefited from the effect of titanium to the boarding size control, also the detrimentally affect to chemical property can be remained in the minimum extent simultaneously.
Alloy of the present invention can comprise the manganese of 0.049wt% at the most.
Preferably, minimum manganese content is 0.005wt%.
The manganese that exists in the alloy is used to improve the green strength and the baking intensity of alloy.Yet manganese may produce detrimentally affect to the electrochemistry boarding performance of alloy, and therefore, the manganese level in the alloy should be not too high.
Preferably, manganese content is in the scope of 0.005-0.030wt%.
The ratio of manganese and magnesium is favourable in the scope of 0.08-1.63 substantially.
According to a second aspect of the invention, the invention provides the planographic printing plate that the alloy by first aspect present invention forms.
According to a third aspect of the invention we, the invention provides the working method of the planographic printing plate that the alloy by first aspect present invention forms.
Present invention is described in the mode of example by the following examples, but not limitation of the invention, the present invention is not limited in these embodiment.
What below list is the detailed composition of 4 embodiment in the preferred embodiment of the invention, to show the weight ratio of the component that forms described alloy.
Table 4
| Alloy | ??Al | ??Fe | ??Si | ??Cu | ??Mn | ??Ti | ??Mg | ??Zn | |
| Embodiment | |||||||||
| 1 | ??99.48 | ??0.36 | ??0.08 | ??0.001 | ??0.009 | ??0.006 | ??0.046 | ??0.022 | ??0.005 |
| |
??99.44 | ??0.33 | ??0.05 | ??0.001 | ??0.049 | ??0.008 | ??0.048 | ??0.060 | ??0.008 |
| |
??99.39 | ??0.35 | ??0.06 | ??0.001 | ??0.049 | ??0.009 | ??0.080 | ??0.053 | ??0.007 |
| |
??99.52 | ??0.33 | ??0.06 | ??0.001 | ??0.009 | ??0.008 | ??0.045 | ??0.022 | ??0.007 |
Description of drawings
Below with reference to the accompanying drawings the present invention is further described in the mode of indefiniteness embodiment, wherein:
Fig. 1 compares with AA1050 with known group of alloys AA3XXX for showing, original and do not toast state and respectively in 200 ℃, 220 ℃, 240 ℃ and 260 ℃ baking after 10 minutes, the diagram of the foregoing description 1,2,3 and vertical ultimate tensile strength (ultimate tensile strength in the longitudinaldirection) of 4.
Fig. 2 compares with known group of alloys AA1050 for showing, at former beginning and end baking state and respectively 200 ℃, 220 ℃, 240 ℃ and 260 ℃ of bakings after 10 minutes, and the foregoing description 1,2,3 and 4 longitudinal elasticity ultimate stress (proof stress (R
p) in the longitudinal direction) and diagram.
Fig. 3 compares with known group of alloys AA1050 for showing, at former beginning and end baking state and respectively 200 ℃, 220 ℃, 240 ℃ and 260 ℃ of bakings after 10 minutes, and the diagram of the foregoing description 1,2,3 and 4 horizontal limit tensile strength.
Fig. 4 compares with known group of alloys AA1050 for showing, at former beginning and end baking state and respectively 200 ℃, 220 ℃, 240 ℃ and 260 ℃ of bakings after 10 minutes, and the diagram of the foregoing description 1,2,3 and 4 transverse elasticity ultimate stress.
Fig. 5 and 5a are Photomicrograph, show the transverse section of AA1050 alloy sample after accepting pliability test respectively.The enlargement ratio of Fig. 5 is * 200, and the enlargement ratio of Fig. 5 a is * 100.
Fig. 6 and 6a are Photomicrograph, show the transverse section of sample after accepting pliability test of the foregoing description 1 respectively.The enlargement ratio of Fig. 6 is * 200, and the enlargement ratio of Fig. 6 a is * 100.
Fig. 7 is a Photomicrograph, and it shows the more details of AA1050 sample shown in Figure 5 at crooked outer surface; Its enlargement ratio is * 112.5.
Fig. 8 is a Photomicrograph, and it shows embodiment illustrated in fig. 61 the sample more details at crooked outer surface; The enlargement ratio of Fig. 8 is * 112.5.
Embodiment
Tensile strength or ultimate tensile strength/stress (ultimate tensile strength/stress (UTS)) are meant the overall loading that applies to material during the tension test and the ratio of the original cross-sectional area of this material.In fragility or toughness material, it is consistent with breaking point, but reduces to extend under the stress continuation usually after by UTS.
Proof stress (R
p) be in metal, to produce the required stress of a certain amount of tension set (recoverable deformation), it does not have tangible yield-point.In accompanying drawing 2 and 4, proof stress is to produce 0.2% tension force (R
p0.2) stress.
As mentioned above, the standard baked test is to continue 10 minutes under 240 ℃.In Fig. 1-4, also detect other temperature (promptly 200 ℃, 220 ℃ and 260 ℃) showing the intensive property of every kind of alloy, and the reduce situation of described intensive property under different baking conditions.
As shown in Figure 1, with AA1050 combination metallographic ratio, each alloy among the embodiment 1-4 all has higher vertical ultimate tensile strength under former beginning and end baking state and assigned temperature.Yet AA3XXX combination gold has the intensity that is higher than embodiment 1-4.
As shown in Figure 2, with AA1050 combination metallographic ratio, each alloy among the embodiment 1-4 all has higher longitudinal elasticity ultimate stress under former beginning and end baking state and assigned temperature.
As shown in Figure 3, with AA1050 combination metallographic ratio, each alloy among the embodiment 1-4 all has higher horizontal limit tensile strength under former beginning and end baking state and assigned temperature.
As shown in Figure 4, each alloy among the embodiment 1-4 all has the transverse elasticity ultimate stress that is higher than AA1050 combination gold under former beginning and end baking state and assigned temperature.
Can understand, with regard to pressure, the bending property specific tenacity is important, but is difficult for directly measuring.Therefore, often intensity is used as the reference of simulation benchmark.However, the present invention has still carried out simple pliability test to embodiment.
Described pliability test is based on makes and measures the static test that is used for planographic printing plate is fixed to the bending on the printing press.
Because the character (for example working method of the composition of alloy, toughness, alloy) of material has remarkably influenced to initial bending but is limited to the influence of fatigue, so think that static test is the most suitable.Should be understood that main by degree of crook (bend dimensions) and material specification (material gauge) mensuration fatigue failure.
In order to carry out pliability test, will bend to strict parameter set (strictset of parameters) by the plate that particular alloy forms.If degree of crook and designated value (comprise and specify specification) differ too much, then can damage test-results.
The thickness measurements of sample will keep constant as far as possible, in the scope of 0.275-0.280mm.
Tension value on the outside sweep surface is to a great extent by crooked inner surface radius and specification decision.This can produce noticeable change with the subtle change that parameter is set.Therefore, the interior curve radius should keep constant.
In use, use the crooked aluminium planographic printing plate of press brake.Press brake is associated with printing press, and it is to be used to form crooked equipment component.In this test, in the simple bending of setting 60 ° of radius periphery manufacturings, thus the simulation press brake.60 ° within normally used angle of bend scope.
This test is carried out on both direction, and wherein bending axis is parallel and perpendicular to the rolling direction of plate respectively.Rolling direction is the direction of aluminium sheet being processed during rolling.
This test and the test of carrying out on AA1050 combination gold are compared.
After the test, use opticmicroscope the bending of alloy to be assessed according to its cross section outward appearance and exterior surface appearance.
Photomicrograph shown in Fig. 5-8 has shown the pliability test data of AA1050 alloy sample and the foregoing description 1 sample.
As mentioned above, Fig. 5 and Fig. 5 a are Photomicrograph, and it shows the transverse section of AA1050 alloy sample after accepting pliability test respectively.By these accompanying drawings as seen, the pressure distortion of crooked inner surface causes the alloy internal surface inwardly to twist.This distortion is positioned at the pointed annular region of Reference numeral 1.Can be by the horizontal survey pressure distortion that inwardly twists.
Shown in zone 2, also can find the fold (ridge) that on the alloy outside surface, forms by the shearing strain on the outside surface.Can pass through the level of the depth survey shearing strain of the fold that forms.
Do not form the advantage that the distortion fold is considered to material.This is because generally believe that fold can be used as focal point of stress, and serve as the weak site of causing the planographic printing plate fracture.
Fig. 6 and Fig. 6 a show the transverse section of sample after accepting similar pliability test of the foregoing description 1 respectively.By accompanying drawing as seen, compare with the outside surface of the AA1050 alloy sample shown in Fig. 5 a with Fig. 5, the internal surface flexural deformation shown in the zone 3 reduces, and the outside surface shown in the zone 4 is more level and smooth.
Fig. 7 and Fig. 8 have shown the more details of crooked outer surface of the sample of AA1050 alloy sample and embodiment 1 respectively.Can find equally in the annular region that in Fig. 7, marks, compare, have degree of depth fold in the AA1050 alloy sample with the sample of embodiment 1 by Reference numeral 5.Fig. 8 shows that outside surface is totally smoother.
Analysis to the Photomicrograph shown in Fig. 5-8 is qualitatively to a great extent, directly compares but still can make between the different-alloy in the variation of viewed shearing strain and crackle (cracking) level between the differing materials.Also the crooked outer surface to every kind of alloy carries out roughness concentration, and has measured the peak-paddy spacing of the maximum of shearing strain fold on the crooked outer surface.
Use white light interference method (white light interferometer) that the described pattern of crooked outer surface is measured.In this uses, with the untouchable method of interferometer as measure surface roughness.
Listed the measuring result of roughness in the following table 5.
Table 5
| Variable | Maximum peak-paddy spacing (μ m) |
| |
??13 |
| |
??11 |
| |
??16 |
| |
??17 |
| ??AA1050 | ??19 |
Listed summary in the table 6 to test-results.By this table as seen, AA1050 combination gold demonstrates moderate distortion in this type of pliability test.Should be understood that the distortion of AA3XXX combination gold in bending is very little.
Table 6
| Grade | Deformation level | Variable | |
| ??+ | A small amount of | Embodiment | 1, and |
| ??+- | A small amount of to | Embodiment | 3, and |
| ??- | Moderate distortion | ??AA1050 |
According to explanation above, emphasis is will be by alloy being carried out the surface that the electrochemistry boarding obtains evenly to cave in and do not have streak based on the solution of hydrochloric acid or in based on the solution of nitric acid, thereby produces the surface with good function.
Hereinafter showed the comparison that embodiment 1-4 and AA1050 and AA3XXX are made up golden electrochemistry boarding performance.
The basis of following result is the laboratory test of in based on the electrolytic solution of hydrochloric acid alloy being carried out.
It below is the judging criterion of used measurement electrochemistry boarding performance.
Table 7
| Grade | The electrochemistry boarding | Note |
| ++ | Very good | Be the target of electrochemistry boarding performance, have high homogeneity and easy initial property. |
| + | Good | It is the benchmark of industrial acceptable electrochemistry boarding performance. |
| +- | Still can | Homogeneity has minor defects, but thinks and still can accept |
| - | Difference | Homogeneity and initial property have open defect, show on technical scale and may have problems. |
| -- | Non-constant | Poor performance can be observed halfway electrochemistry boarding on laboratory scale |
Hereinafter provided the result of different embodiment.
All conditions all uses 1000C/dm
2Electric density, but the time span difference of carrying out the electrochemistry boarding.
The experiment condition of " easily " was realized by the electrochemistry boarding in 24 seconds.
The condition of " medium " realized by the electrochemistry boarding in 9.5 seconds.
The condition of " difficulty " realized by the electrochemistry boarding in 6.5 seconds.
Table 8
| Alloy | The condition of easy electrochemistry boarding | The condition of medium electrochemistry boarding | The condition of difficulty electrochemistry boarding |
| ??AA1050 | ??++ | ??+ | ??+ |
| ??AA3xxx | ??- | ??-- | ??- |
| |
??++ | ??++ | ??+ |
| |
??++ | ??++ | ??++ |
| |
??++ | ??++ | ??++ |
| |
??++ | ??++ | ??+ |
The result shows that among the embodiment 1-4 each all has and the identical at least electrochemistry boarding performance of AA1050 combination gold, and under certain conditions, its electrochemistry boarding performance is better than AA1050 combination gold.
In all cases, the electrochemistry boarding performance of each all is better than AA3XXX class alloy among the embodiment 1-4.
Therefore, aluminium alloy provided by the invention has intensity that is better than AA1050 type alloy and the electrochemistry boarding performance that is better than AA3XXX type alloy.
Hereinafter the preparation method of planographic printing plate of the present invention will be described briefly.This method can be considered as 3 sub-steps: produce the alloy andante base continuous casting (slab casting) of going forward side by side; Produce the thin aluminium strip that rolls; With the production planographic printing plate.Hereinafter will be described in detail these methods.
Produce the alloy andante base continuous casting of going forward side by side
Make and roll the plate ingot by DC (directly Quench) casting molten aluminum.
By the addition that is fit to the composition of metal simple-substance is controlled at described level.
Ingot thickness is usually between 400-650mm.
Produce the thin aluminium strip that rolls
Scrape light with the raising surface clearness to rolling the plate ingot, and improve homogeneity by removing cast layer.The thickness of removing from two surfaces reaches 25mm altogether.
Carry out preheating to reach 400-600 ℃ metal temperature out, to carry out hot rolling.
Ingot is carried out the multipass hot rolling, to obtain the thick sheet material specification of 11-18mm.
Press quenching so that the sheet material temperature be reduced to＜50 ℃.
Subsequently, sheet material is cold rolled to medium specification.
Can carry out process annealing in batches.The metal target temperature is between 350-550 ℃.
Use other cold rolling steps to obtain the end product thickness between the 0.1-0.5mm.
Subsequently, can before being used to produce planographic printing plate, greasy dirt be evened up and be removed to strip coil (or sheet material volume).
Produce planographic printing plate
By be used for the surface of alligatoring based on the etching and processing preparation of alkali.
Preferably finish alligatoring by the electrochemistry boarding.This is carrying out based on hydrochloric acid or in based on the electrolytic solution of nitric acid usually.Apply the AC electric current to finish alligatoring to electrochemistry boarding groove.
To making anodizing through the surface of electrochemistry boarding to improve wear resistance.
Can between some or each above-mentioned basic procedure of processing, apply other online treatment, to improve the character of sheet material.
The coating photosensitive coating.
Behind the sheet material patterning, can toast to improve the wear resistance of photosensitive coating it.
Claims (16)
1. be fit to be processed into the Al alloy of planographic printing plate, described alloy has the following composition of representing with weight %:
Fe，0.16-0.40
Si, at the most 0.25
Cu, at the most 0.01
Mn, at the most 0.05
Ti, at the most 0.015
Mg，0.02-0.10
Zn, at the most 0.06
Unspecified other components, every kind at the most 0.03
Surplus is Al, and wherein the minimum content of Al is 99.3.
2. alloy as claimed in claim 1, wherein the minimum content of Al is 99.45wt%.
3. alloy as claimed in claim 1 or 2, wherein the minimum content of Al is 99.50wt%.
4. as each described alloy in the above-mentioned claim, it comprises the magnesium of 0.099wt% at the most.
5. as each described alloy in the above-mentioned claim, wherein Mg content is preferably in the scope of 0.02-0.05wt%.
6. as each described alloy in the above-mentioned claim, wherein the minimum content of Zn is 0.02wt%.
As above-mentioned claim in each described alloy, wherein in described alloy the ratio of zinc and magnesium substantially in the scope of 0.1-2.3.
8. as each described alloy in the above-mentioned claim, it comprises the manganese of 0.049wt% at the most.
9. as each described alloy in the above-mentioned claim, wherein the minimum content of Mn is 0.005wt%.
10. as each described alloy in the above-mentioned claim, wherein manganese content is in the scope of 0.005-0.030wt%.
11. as each described alloy in the above-mentioned claim, wherein the ratio of manganese and magnesium is substantially in the scope of 0.08-1.63.
12. the planographic printing plate that each described alloy forms in being required by aforesaid right.
13. the preparation method of the described planographic printing plate of claim 12.
14. with described with reference to the accompanying drawings basic similarly alloy above.
15. with described with reference to the accompanying drawings basic similarly planographic printing plate above.
16. with described with reference to the accompanying drawings basic similarly method above.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0811534A GB2461240A (en) | 2008-06-24 | 2008-06-24 | Aluminium alloy for lithographic sheet |
| GB0811534.7 | 2008-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101613821A true CN101613821A (en) | 2009-12-30 |
Family
ID=39683042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910139487A Pending CN101613821A (en) | 2008-06-24 | 2009-06-24 | A kind of aluminium alloy, by its planographic printing plate that forms and preparation method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100034694A1 (en) |
| EP (1) | EP2138592A3 (en) |
| JP (1) | JP2010012779A (en) |
| CN (1) | CN101613821A (en) |
| BR (1) | BRPI0902046A2 (en) |
| GB (1) | GB2461240A (en) |
| TW (1) | TWI405856B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013177685A (en) * | 2013-04-11 | 2013-09-09 | Kobe Steel Ltd | High strength aluminum alloy sheet for automatic plate-making printing plate |
| CN104073690A (en) * | 2014-06-18 | 2014-10-01 | 厦门厦顺铝箔有限公司 | Aluminum alloy product and manufacture method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333136A (en) * | 2000-07-11 | 2002-01-30 | 三菱铝株式会社 | Aluminium alloy plate for lithographic printing plate |
| WO2007045676A1 (en) * | 2005-10-19 | 2007-04-26 | Hydro Aluminium Deutschland Gmbh | Aluminum strip for lithographic printing plate supports |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US726734A (en) * | 1901-09-27 | 1903-04-28 | Rowland Telegraphic Company | Electric circuit. |
| JPS5842745A (en) * | 1981-09-03 | 1983-03-12 | Furukawa Alum Co Ltd | Aluminum alloy plate for printing and its manufacture |
| JP2778662B2 (en) * | 1996-04-05 | 1998-07-23 | 株式会社神戸製鋼所 | Aluminum alloy plate for printing plate and method for producing the same |
| JP3915944B2 (en) * | 1997-08-22 | 2007-05-16 | 古河スカイ株式会社 | Method for producing aluminum alloy support for lithographic printing plate and aluminum alloy support for lithographic printing plate |
| JP3887497B2 (en) * | 1998-09-21 | 2007-02-28 | 株式会社神戸製鋼所 | Aluminum alloy plate for surface treatment and manufacturing method thereof |
| DE60040279D1 (en) * | 1999-05-27 | 2008-10-30 | Novelis Inc | ALUMINUM ALLOY PLATE |
| DE29924474U1 (en) * | 1999-07-02 | 2003-08-28 | Hydro Aluminium Deutschland | litho |
| CN1186207C (en) * | 2000-03-28 | 2005-01-26 | 富士胶片株式会社 | Support for lithographic plate |
| EP1176031B1 (en) * | 2000-07-17 | 2004-04-07 | Agfa-Gevaert | Production of support for lithographic printing plate |
| ES2259311T3 (en) * | 2000-12-11 | 2006-10-01 | Novelis, Inc. | ALUMINUM ALLOY FOR LITHOGRAPHIC IRON. |
| JP2002363799A (en) * | 2001-06-11 | 2002-12-18 | Fuji Photo Film Co Ltd | Aluminum plate, method for producing supporting body for planographic printing plate, supporting body for planographic printing plate and planographic printing original plate |
| JP4287414B2 (en) * | 2001-12-28 | 2009-07-01 | 三菱アルミニウム株式会社 | Aluminum alloy plate for lithographic printing plate and lithographic printing plate |
| EP1475448A4 (en) * | 2001-12-28 | 2009-05-13 | Mitsubishi Aluminium | Aluminum alloy plate for lithographic printing form and method for production thereof and lithographic printing form |
| JP4318587B2 (en) * | 2003-05-30 | 2009-08-26 | 住友軽金属工業株式会社 | Aluminum alloy plate for lithographic printing plates |
| JP4105042B2 (en) * | 2003-06-12 | 2008-06-18 | 三菱アルミニウム株式会社 | Aluminum alloy material for lithographic printing plate and method for producing the same |
| JP4630968B2 (en) * | 2003-07-25 | 2011-02-09 | 三菱アルミニウム株式会社 | Aluminum alloy plate for planographic printing plate, method for producing the same and planographic printing plate |
| JP4250490B2 (en) * | 2003-09-19 | 2009-04-08 | 富士フイルム株式会社 | Aluminum alloy base plate for planographic printing plate and support for planographic printing plate |
| EP1543899A3 (en) * | 2003-12-17 | 2005-12-21 | Fuji Photo Film B.V. | Aluminium alloy substrate for digitally imageable lithographic printing plate and process for producing the same |
| JP4161134B2 (en) * | 2004-06-25 | 2008-10-08 | 日本軽金属株式会社 | Method for producing aluminum alloy base plate for printing plate |
| JP2006205557A (en) * | 2005-01-28 | 2006-08-10 | Fuji Photo Film Co Ltd | Substrate for lithographic printing plate |
| WO2006134542A2 (en) * | 2005-06-15 | 2006-12-21 | Hulett Aluminium (Proprietary) Limited | Aluminium alloy for lithographic sheet and process for producing the same |
| JP2007175867A (en) * | 2005-12-26 | 2007-07-12 | Fujifilm Corp | Method of manufacturing support for lithographic printing plate, support for lithographic printing plate and lithographic printing original plate |
| JP4913008B2 (en) * | 2007-10-12 | 2012-04-11 | 三菱アルミニウム株式会社 | Aluminum alloy material for lithographic printing and method for producing the same |
| CN101182611B (en) * | 2007-12-11 | 2010-10-13 | 乳源东阳光精箔有限公司 | Aluminum plate foundation for printing master and manufacturing method therefor |
-
2008
- 2008-06-24 GB GB0811534A patent/GB2461240A/en not_active Withdrawn
-
2009
- 2009-06-23 US US12/489,908 patent/US20100034694A1/en not_active Abandoned
- 2009-06-24 JP JP2009149393A patent/JP2010012779A/en active Pending
- 2009-06-24 TW TW098121098A patent/TWI405856B/en not_active IP Right Cessation
- 2009-06-24 EP EP09251641A patent/EP2138592A3/en not_active Withdrawn
- 2009-06-24 CN CN200910139487A patent/CN101613821A/en active Pending
- 2009-06-24 BR BRPI0902046-2A patent/BRPI0902046A2/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333136A (en) * | 2000-07-11 | 2002-01-30 | 三菱铝株式会社 | Aluminium alloy plate for lithographic printing plate |
| WO2007045676A1 (en) * | 2005-10-19 | 2007-04-26 | Hydro Aluminium Deutschland Gmbh | Aluminum strip for lithographic printing plate supports |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0811534D0 (en) | 2008-07-30 |
| BRPI0902046A2 (en) | 2010-04-20 |
| GB2461240A (en) | 2009-12-30 |
| JP2010012779A (en) | 2010-01-21 |
| US20100034694A1 (en) | 2010-02-11 |
| GB2461240A9 (en) | 2011-01-19 |
| TWI405856B (en) | 2013-08-21 |
| EP2138592A3 (en) | 2012-05-23 |
| EP2138592A2 (en) | 2009-12-30 |
| TW201012942A (en) | 2010-04-01 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20091230 |