CN101182611B - Aluminum plate foundation for printing master and manufacturing method therefor - Google Patents
Aluminum plate foundation for printing master and manufacturing method therefor Download PDFInfo
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- CN101182611B CN101182611B CN2007101249632A CN200710124963A CN101182611B CN 101182611 B CN101182611 B CN 101182611B CN 2007101249632 A CN2007101249632 A CN 2007101249632A CN 200710124963 A CN200710124963 A CN 200710124963A CN 101182611 B CN101182611 B CN 101182611B
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Abstract
The invention relates to a press plate aluminum board and a preparation method hereof; the materials comprise Al, Si, Fe, Cu, Mn, Mg, Zn, Ti and other impurities; the invention is characterized in that the weight percents of the components are as follows that 0.05 percent to 0.15 percent of Si, 0.2 percent to 0.45 percent of Fe, 0.08 percent to 0.25 percent of Mg, 0.005 percent to 0.05 percent ofTi, no more than 0.008 percent of Cu, the single weight content of other impurity is not more than 0.025 percent and the rest is Al. The hot-rolled blank is coldly rolled for the first time to reach the thickness of 1.4 to 2.0 mm and then the annealing process is implemented; the temperature of the annealing step is controlled between 380 to 420 Celsius degrees and the time for metal heat preservation is one to four hours; and then the blank is coldly rolled again to obtain the finished product of the aluminum board which is 0.24 to 0.30 mm thick; the press plate aluminum board of the invention is characterized by high surface quality, good board shape, high tensile strength and yield strength and better board-baking property.
Description
Technical field
The present invention relates to a kind of distortion aluminium and preparation method thereof, more particularly, the present invention relates to a kind of aluminum plate foundation for printing master and preparation method thereof.
Background technology
Be widely used in offset printing with aluminium alloy plate as the lithographic plate of plate base.Usually, lithographic plate closely is bonded on the plate cylinder.Image-region on the lithographic plate is stained with printing ink, and its hydrophilic non-image areas just is stained with fountain solution, so, makes printing ink optionally be distributed in its corresponding image section.Printing ink corresponding to image must be transported on the intermediate calender rolls of blanket cylinder, and then is transported on the media such as paper, makes printing item.Because intermediate calender rolls applies force on the crooked lithographic plate repeatedly, therefore, two curved parts that form in two ends of lithographic plate may come off from plate cylinder.Plate cylinder moulding repeatedly seal cylinder, the above-mentioned part that comes off is with regard to repeated flex, so the repeated stress failure that may produce lithographic plate.
And after exposure and developing, lithographic plate generally all needs to carry out calcination process (after drying processing) under 200 ℃ to 300 ℃ temperature.Such calcination process can make the photoactive layer of image-region further harden, thereby can improve the pressrun of lithographic plate, the number of pages that increase can be printed, and still, calcination process also causes the reduction of aluminium sheet physical strength easily.
The high speed development of offset printing is except the common PS version of needs, also need more advanced colored PS version and be used for the CTP version etc. of high speed printing, thereby to the aluminium alloy plate base also propose more higher requirements as: surface quality is good, dimensional precision is high, plate shape is good except requiring, electrolysis asperities efficient height and homogeneity is good, intensity high, also require better simultaneously, more stable roasting plate performance.
For solving this type of problem, industry was all done to improve at the aspects such as manufacturing process of the quantity of the component of the alloy grain of the aluminium alloy plate base of press plate, particle diameter, iron sosoloid, alloy and was attempted.
As application number is that the Chinese patent file of CN200610135281.7 discloses the manufacturing process of a kind of high printing with PS version base, it is undertaken by following process: with 1060,1070,1050 or 1052 alloys is that raw material is cast as alloy cast ingot, through hot rolling, cold rolling, Full Annealing for the first time, second and third, be cold-rolled to 0.27mm four times, after rectifying, pack, stretch bending obtains finished product again, it is said: its surface quality is good, smooth, thickness is even, tensile strength reaches 150MPa, but this document does not provide the strength values after further technology numerical value reaches roasting plate.
And for example application number is the manufacture method that the Chinese patent file of CN200510010005.3 discloses a kind of aluminous plate for PS plate substrate for printing, and the step of this method is: a, according to ratio of weight and number A1:98, Si:＜1.0, above-mentioned alloying constituent is mixed the back is melting under 720～800 ℃ the condition in temperature to the ratio of Fe:0.3～1.0, Cu:0.03, Zn:0.03, Mg:0.03, Ti:0.05; B, be to be cast as alloy cast ingot under 690～750 ℃ the condition in temperature; C, be to make ingot homogenization annealing under 500～610 ℃ the condition in temperature; D, be to carry out hot rolling under 400～540 ℃ the temperature in temperature; E, be cold-rolled to 0.7mm by 9.0mm; F, be to be cold-rolled to 0.15mm behind process annealing 11h, the insulation 1h under 300 ℃～500 ℃ the condition in temperature.It is said: this technology has solved the problem that organizing of existing aluminium sheet is bad, surface quality is poor, plate shape is bad, in uneven thickness.
Summary of the invention
The problems referred to above at prior art, the objective of the invention is to provide a kind of aluminum plate foundation for printing master and manufacture method thereof, its aluminum plate foundation also has advantages such as higher, the roasting plate performance of tensile strength and yield strength is better except that having high surface quality, good plate shape.
For this reason, one of technical solution of the present invention is a kind of aluminum plate foundation for printing master, the component of its material is made up of Al, Si, Fe, Mg, Ti, Cu and other impurity, it is characterized in that: the weight content of these components is as follows: Si:0.05～0.15%, Fe:0.2～0.45%, Mg:0.12～0.25%, Ti:0.005～0.05%; Cu: be not more than 0.008%, the single weight content of described other impurity is not more than 0.025%; Al is a surplus; And its manufacture method comprises the steps: the material of deployed component is carried out melting, casting, hot rolling, cold rolling, process annealing:
The smelting temperature of described melting step is controlled at 740～780 ℃, and the casting temp of described casting step is controlled at 690～720 ℃;
In the described hot-rolled step, start rolling temperature is controlled at 460～510 ℃, and finishing temperature is controlled at 240～300 ℃, makes the blank of thickness between 5.0～6.5mm;
Described blank through first cold rolling reach 1.4～2.0mm thickness after, carry out process annealing and handle, get the aluminum plate foundation finished product that thickness is 0.24～0.30mm through cold rolling once more again, described first cold rolling road number of times is 2～3, described cold rolling once more road number of times is 2～3;
The holding temperature of described process annealing step is controlled at 380～420 ℃, 1～4 hour metal heat preservation time; Total working modulus of blank is more than 80% after the described process annealing step.
Generally the mechanical property of the PS version base made of the aluminium alloy of the tradition 1 prefix trade mark of Cai Yonging is relatively poor: room temperature tensile strength is that 140～180MPa, yield strength are that 130～160MPa, unit elongation are 1～8%; And the mechanical property of the aluminium alloy PS version base of traditional 1 prefix trade mark is reduced to 100～120MPa behind the roasting plate, and is lower sometimes, and the unit elongation fluctuating range is extended to 3～25% and consequently has influence on printing quality.And aluminum plate foundation of the present invention, the test data that obtains by actual measurement (as the back record) prove: its homogeneous microstructure, finished product tensile strength be good, compare with the PS version base that the aluminium alloy of the 1 prefix trades mark such as present domestic common 1050 is made, surface quality is better, template is better, removing has better room temperature strength performance, and the mechanical property of the roasting plate of simulation significantly improves, and the performance of electrolysis simultaneously is better, Grains is evenly fine and smooth, can satisfy the service requirements of high-grade PS version base.
Aluminum plate foundation for printing master of the present invention also further comprises following concrete improvement:
The weight content of preferred aluminum plate foundation each component is as follows: Si:0.06～0.1%, Fe:0.3～0.4%, Mg:0.12～0.2%, Ti:0.005～0.015%; Cu: be not more than 0.005%, described single impurity weight content is not more than 0.02%, Al: surplus.
Described aluminum plate foundation tensile strength at room temperature is 170～220MPa, and yield strength is 150～220MPa, and unit elongation is 2～6%.
Through the roasting slat element of mimic: under 280 ℃ of roasting plate temperatures, insulation 8 minutes, more than the tensile strength 120MPa of the described aluminum plate foundation in cooling back, unit elongation is 3～8%.The mechanical property of removing roasting plate improves than prior art, can guarantee that the plate base has better mechanical strength and printing performance simultaneously.
Correspondingly, the manufacture method that another correlation technique solution of the present invention is a kind of aluminum plate foundation for printing master as mentioned above, this manufacture method comprise the steps: the material of deployed component is carried out melting, casting, hot rolling, cold rolling, process annealing,
And the smelting temperature of described melting step is controlled at 740～780 ℃, and the casting temp of described casting step is controlled at 690～720 ℃;
In the described hot-rolled step, start rolling temperature is controlled at 460～510 ℃, and finishing temperature is controlled at 240～300 ℃, makes the blank of thickness between 5.0～6.5mm;
Described blank through first cold rolling reach 1.4～2.0mm thickness after, carry out process annealing and handle, get the aluminum plate foundation finished product that thickness is 0.24～0.30mm through cold rolling once more;
The holding temperature of described process annealing step is controlled at 380～420 ℃, 1～4 hour metal heat preservation time.
Studies show that, the Mg element can play the effect of solution strengthening, improve the intensity of plate base, and in suitable content range, Mg is enriched in surface of aluminum plate more, forms the small corrosion-prone Mg composite oxide particle that contains, and promotes corrosion, and then the erosion rate of raising plate base, for follow-up high speed asperitiesization provides possibility; The Ti element can play the grain refining effect, with the grain fineness number of satisfying the demand; Too much titanium can increase cost, and may be because of the inhomogeneous titanium deposition that causes; The effect of Cu element and Mg element is similar, and suitable copper can play solution strengthening and improve the homogeneity of follow-up asperitiesization, but Ruo Taigao then can make the embrittlement of plate base on the contrary, and brings difficulty for follow-up heat treatment process.Fe, Si, Cu are controlled at above-mentioned suitable scope, and when guaranteeing mechanical property and roasting plate performance, guaranteeing has suitable corrosion rate in the follow-up asperities process, and asperitiesization is even simultaneously, and the pit size degree of depth of formation is suitable.
Technology of the present invention is on experiment obtains filling a prescription the basis, processing parameter through characteristic comprises the product that the processing of process annealing step makes again, its surface quality is even, electrolysis effectiveness is good, with common 1050 alloys with compare with the obvious advantagely without the product of process annealing, can adapt to, satisfy PS version and printing producer fully to the requirement of aspects such as product mechanical property.
Manufacture method of the present invention also further comprises following concrete improvement:
Total working modulus of blank is more than 80% after the described process annealing step.
The passage of described cold rolling step is between 4～6.
Described first cold rolling road number of times is 2～3 times, and described cold rolling once more road number of times is 2～3 times.
Heat before the described hot rolling open rolling, heat its metal heat preservation temperature and be controlled at 460～510 ℃ and metal heat preservation 3～15 hours.
Described melting step comprises degasification, removes the gred, leaves standstill, analyzes, adds the master alloy operation.
The present invention will be further described below in conjunction with specific embodiment.
At first, make following comparative example 1,2,3,4 according to some condition of embodiment:
Comparative example 1
The chemical ingredients of material (wt%): table 1
Manufacture method:
(1) calculates and gets ready material by table 1 composition, add in the smelting furnace and melt, smelting temperature is controlled at 750 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting temp is controlled at 710 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 480 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 250～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 0.9mm;
(5) do process annealing (exceed the present invention anneal specific thickness) under the 0.9mm thickness, temperature is controlled at 390 ℃, 2 hours metal heat preservation time.
(6) after the process annealing again through 2 passage cold rollings to finished product thickness 0.27mm.
Comparative example 2
Manufacture method:
(1) calculates and gets ready material by table 1 composition, add in the smelting furnace and melt, smelting temperature is controlled at 750 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 705 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 480 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 270～300 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 5 passage cold rollings to finished product thickness 0.27mm (cancellation process annealing operation).
Comparative example 3
The chemical ingredients of material (wt%): table 2
Manufacture method:
(1) calculates and gets ready material (Mg content exceeds the present invention's regulation) by table 2 composition, add in the smelting furnace and melt, smelting temperature is controlled at 760 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 705 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 480 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 1.5mm;
(5) 1.5mm thickness process annealing, temperature are controlled at 420 ℃, 4 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Comparative example 4
Domestic 1050 alloy compositions (wt%) that generally adopt: table 3
Manufacture method:
(1) calculates and gets ready material by table 3 composition, (Mg content exceeds the present invention's regulation) adds in the smelting furnace and melts, smelting temperature is controlled at 750 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 705 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 480 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 270～300 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 5 passage cold rollings to finished product thickness 0.27mm (cancellation process annealing operation).
Embodiment
Embodiment 1:
The chemical ingredients of material (wt%): table 4
Manufacture method:
(1) calculates and gets ready material by table 4 composition, add in the smelting furnace and melt, smelting temperature is controlled at 740 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting temp is controlled at 695 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 500 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.5mm;
(4) hot rolling blank passes through 3 passage cold rollings to interior thickness 1.4mm;
(5) 1.4mm thickness process annealing, temperature are controlled at 390 ℃, 3 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Embodiment 2:
The chemical ingredients of material (wt%): table 5
Manufacture method:
(1) calculates and gets ready material by table 5 composition, add in the smelting furnace and melt, smelting temperature is controlled at 750 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 700 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 480 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 1.5mm;
(5) 1.5mm thickness process annealing, temperature are controlled at 385 ℃, 2 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Embodiment 3:
The chemical ingredients of material (wt%): table 6
Manufacture method:
(1) calculates and gets ready material by table 6 composition, add in the smelting furnace and melt, smelting temperature is controlled at 755 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 710 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 460 ℃, 10 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 250～280 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 1.6mm;
(5) 1.6mm thickness process annealing, temperature are controlled at 420 ℃, 2.5 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Embodiment 4:
The chemical ingredients of material (wt%): table 7
Manufacture method:
(1) calculates and gets ready material by table 7 composition, add in the smelting furnace and melt, smelting temperature is controlled at 745 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 700 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 470 ℃, 8 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 1.7mm;
(5) 1.7mm thickness process annealing, temperature are controlled at 390 ℃, 2 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Embodiment 5:
The chemical ingredients of material (wt%): table 8
Manufacture method:
(1) calculates and gets ready material by table 8 composition, add in the smelting furnace and melt, smelting temperature is controlled at 755 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 708 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 480 ℃, 6 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 1.8mm;
(5) 1.8mm thickness process annealing, temperature are controlled at 395 ℃, 2 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Embodiment 6
The chemical ingredients of material (wt%): table 9
Manufacture method:
(1) calculates and gets ready material by table 9 composition, add in the smelting furnace and melt, smelting temperature is controlled at 760 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 715 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 490 ℃, 4 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 6.0mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 1.9mm;
(5) 1.9mm thickness process annealing, temperature are controlled at 410 ℃, 2 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Embodiment 7
The chemical ingredients of material (wt%): table 10
Manufacture method:
(1) calculates and gets ready material by table 10 composition, add in the smelting furnace and melt, smelting temperature is controlled at 770 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, leave standstill, refining, degasification, slagging-off, add in aluminium liquid and enter casting machine behind the Al-5Ti-1B silk and be cast as ingot casting, casting technological parameter: casting temp is controlled at 720 ℃;
(2) hot rolling heat tracing temperature and start rolling temperature are controlled at 510 ℃, 3 hours metal heat preservation time;
(3) the hot rolled finishing temperature is controlled at 260～290 ℃, and the finish to gauge sotck thinkness is controlled at 5.5mm;
(4) hot rolling blank passes through 2 passage cold rollings to interior thickness 2.0mm;
(5) 2.0mm thickness process annealing, temperature are controlled at 400 ℃, 1.5 hours metal heat preservation time.
(6) after the process annealing again through 3 passage cold rollings to finished product thickness 0.27mm.
Above-mentioned serial embodiment and comparative example products obtained therefrom are carried out the test performance index by YS/T 421, wherein the roasting plate performance test of simulation is to carry out cooling is come out of the stove in insulation under 280 ℃ after 8 minutes after, the more approaching printing of this method producer roasting version technology, therefore more can embody the advance of this summary of the invention, and comparative example and the resulting product of embodiment carried out the comparison of electrolysis performance, specific targets and comparative result such as table 11:
Table 11
Product electrolysis performance comparison result sees Table 12:
Table 12
| Project | Comparative example | Embodiment |
| Electroconductibility | Generally | Excellent |
| The Grains structure | Thick and local inhomogeneous | Fine and smooth and even |
| Grains density | Generally | Excellent |
| Horizontal and vertical roughness difference | Generally | Excellent |
| Whether coating back rolling direction texture is obvious | Obviously | Not obvious |
| Electrolysis rear oxidation performance | Generally | Excellent |
From the contrast of above-mentioned test data as seen: according to set of dispense of the present invention than and the characteristic working method make product, its each performance index all be better than set of dispense than be not inconsistent, without the respective performances index of the comparative example product of the gained of annealing or under specific thickness, do not anneal; And, compare with the PS version base performance that present domestic common 1050 alloys are made, aluminum plate foundation of the present invention is except the product tissue and performance is highly stable, the electrolysis performance of the finished product, surface and template quality all belong to good, also have a better room temperature strength and the more excellent roasting version of a simulation part energy.
Claims (8)
1. aluminum plate foundation for printing master, the component of its material is made up of Al, Si, Fe, Mg, Ti, Cu and other impurity, it is characterized in that: the weight content of these components is as follows: Si:0.05～0.15%, Fe:0.2～0.45%, Mg:0.12～0.25%, Ti:0.005～0.05%; Cu: be not more than 0.008%, the single weight content of described other impurity is not more than 0.025%; Al is a surplus; And its manufacture method comprises the steps: the material of deployed component is carried out melting, casting, hot rolling, cold rolling, process annealing:
The smelting temperature of described melting step is controlled at 740～780 ℃, and the casting temp of described casting step is controlled at 690～720 ℃;
In the described hot-rolled step, start rolling temperature is controlled at 460～510 ℃, and finishing temperature is controlled at 240～300 ℃, makes the blank of thickness between 5.0～6.5mm;
Described blank through first cold rolling reach 1.4～2.0mm thickness after, carry out process annealing and handle, get the aluminum plate foundation finished product that thickness is 0.24～0.30mm through cold rolling once more again, described first cold rolling road number of times is 2～3, described cold rolling once more road number of times is 2～3;
The holding temperature of described process annealing step is controlled at 380～420 ℃, 1～4 hour metal heat preservation time; Total working modulus of blank is more than 80% after the described process annealing step.
2. aluminum plate foundation for printing master according to claim 1, it is characterized in that: the weight content of described aluminum plate foundation each component is as follows: Si:0.06～0.1%, Fe:0.3～0.4%, Mg:0.12～0.2%, Ti:0.005～0.015%; Cu: be not more than 0.005%, the single weight content of described other impurity is not more than 0.02%, Al: surplus.
3. aluminum plate foundation for printing master according to claim 1, it is characterized in that: described aluminum plate foundation tensile strength at room temperature is 170～220MPa, and yield strength is 150～220MPa, and unit elongation is 2～6%.
4. aluminum plate foundation for printing master according to claim 1 is characterized in that: through the roasting slat element of mimic: under 280 ℃ of roasting plate temperatures, insulation 8 minutes, the tensile strength of the described aluminum plate foundation in cooling back is for being not less than 120MPa, and unit elongation is 3～8%.
5. manufacture method as aluminum plate foundation for printing master as described in one of claim 1～4, this manufacture method comprises the steps: the material of deployed component is carried out melting, casting, hot rolling, cold rolling, process annealing, it is characterized in that:
The smelting temperature of described melting step is controlled at 740～780 ℃, and the casting temp of described casting step is controlled at 690～720 ℃;
In the described hot-rolled step, start rolling temperature is controlled at 460～510 ℃, and finishing temperature is controlled at 240～300 ℃, makes the blank of thickness between 5.0～6.5mm;
Described blank through first cold rolling reach 1.4～2.0mm thickness after, carry out process annealing and handle, get the aluminum plate foundation finished product that thickness is 0.24～0.30mm through cold rolling once more again, described first cold rolling road number of times is 2～3, described cold rolling once more road number of times is 2～3;
The holding temperature of described process annealing step is controlled at 380～420 ℃, 1～4 hour metal heat preservation time; Total working modulus of blank is more than 80% after the described process annealing step.
6. as the manufacture method of aluminum plate foundation for printing master as described in the claim 5, it is characterized in that: the passage of described cold rolling step is 4～6.
7. as the manufacture method of aluminum plate foundation for printing master as described in the claim 5, it is characterized in that: heat before the described hot rolling open rolling, the heat tracing temperature was controlled at 460～510 ℃ and metal heat preservation 3～15 hours.
8. as the manufacture method of aluminum plate foundation for printing master as described in the claim 5, it is characterized in that: described melting step comprises degasification, removes the gred, leaves standstill, analyzes, adds the master alloy operation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2461240A (en) * | 2008-06-24 | 2009-12-30 | Bridgnorth Aluminium Ltd | Aluminium alloy for lithographic sheet |
| CN102337430A (en) * | 2011-09-03 | 2012-02-01 | 乳源东阳光精箔有限公司 | Aluminum alloy printing plate substrate and fabricating method thereof |
| CN102500617B (en) * | 2011-11-14 | 2013-11-20 | 重庆捷和铝业有限公司 | Preparation method for high-strength PS (polystyrene) 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 |
| CN105734361A (en) * | 2016-04-19 | 2016-07-06 | 河南金阳铝业有限公司 | Manufacturing method of aluminum foil for substrate for printing board |
| JP6629992B2 (en) * | 2016-04-20 | 2020-01-15 | ハイドロ アルミニウム ロールド プロダクツ ゲゼルシャフト ミット ベシュレンクテル ハフツングＨｙｄｒｏ Ａｌｕｍｉｎｉｕｍ Ｒｏｌｌｅｄ Ｐｒｏｄｕｃｔｓ ＧｍｂＨ | Method of manufacturing litho strip by shortening high-rate cold rolling pass. |
| CN108588499B (en) * | 2018-04-12 | 2019-12-31 | 威海海鑫新材料有限公司 | CTP printing plate-based aluminum strip and preparation process thereof |
| CN112813313B (en) * | 2021-01-04 | 2021-10-29 | 杭州中粮包装有限公司 | Aluminum bottle and preparation method thereof |
| CN115584404B (en) * | 2022-09-07 | 2023-10-10 | 河南明晟新材料科技有限公司 | Preparation method of high-strength high-conductivity 1-series aluminum alloy cathode plate base material |
| CN116904887B (en) * | 2023-09-12 | 2023-12-01 | 湖南卓创精材科技股份有限公司 | Low-cost aluminum alloy reflector material and preparation method thereof |
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| CN1369746A (en) * | 2001-02-09 | 2002-09-18 | 富士胶片株式会社 | Pregaining sensitive flat printing plate |
| CN1388009A (en) * | 2001-05-30 | 2003-01-01 | 富士胶片株式会社 | Supporting body for lithographic printing plate and lithographic printing plate originals |
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| CN101182611A (en) | 2008-05-21 |
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Address after: Guangdong city of Shaoguan province Ruyuan 512721 Dragon Bay County Patentee after: Ruyuan East Sunshine Ai Xijie fine foil Co., Ltd. Address before: Guangdong city of Shaoguan province Ruyuan 512721 Dragon Bay County Patentee before: Dongyang Guangjing Foil Co., Ltd., Ruyuan |
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Granted publication date: 20101013 Termination date: 20201211 |