Computer-to-plate (CTP) printing plate base aluminum strip and preparation technology thereof

A preparation process, technology of aluminum strip, applied in the field of preparation process of CTP printing plate base material, can solve the problems of printing plate quality not guaranteed, surface flatness damage, etc., to improve appearance quality, good mechanical properties, smooth surface Effect

Active Publication Date: 2018-09-28
威海海鑫新材料有限公司
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the raw material is hot-rolled, the non-metallic inclusions (mainly sulfides and oxides, as well as silicates) inside the material are pressed into thin sheets, and a layered (interlayer) phenomenon occurs. When the sheet is on the surface of the material , will cause great damage to the flatness of the surface, especially when the hot-rolled blank is used as the base blank of the printing plate, the longitudinal stripes on the surface of the base blank obtained are obvious, resulting in the quality of the printing plate is not guaranteed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A CTP printing plate-based aluminum strip, which contains the following elements in weight percentage:

[0025] Si: 0.07%, Fe: 0.3%, Mg: 0.12%, Mn: 0.015%, Zn: 0.002%, V: 0.01%, Ti: 0.011%, Cu: 0.001%, Cr: 0.006%, the balance is aluminum, The strip surface roughness Ra value is 0.16~0.21μm.

[0026] The preparation process of the above strip includes the following steps:

[0027] 1) Raw material smelting: add the charge mixed according to the above weight percentage into the melting furnace, and smelt at 720~800℃ to form a homogeneous alloy melt; when the alloy melt temperature is 700~720℃, use nitrogen to blow in The refining agent is refined with a nitrogen flow rate of 2.3~3.0m³ / h. After refining, it is stirred for 30 minutes. When the temperature is 730~780℃, the refining liquid is transferred to the static furnace to stand; add to the melt after refining and standing AlTiB wire with a diameter of 5~10mm is used as a grain refiner, the hydrogen content is controlled to b...

Embodiment 2

[0034] The difference between this embodiment and embodiment 1 is that the strip includes the following elements by weight percentage: Si: 0.11%, Fe: 0.4%, Mg: 0.18%, Mn: 0.036%, Zn: 0.004%, V: 0.02% , Ti: 0.014%, Cu: 0.006%, Cr: 0.009%, the balance is aluminum, and the strip surface roughness Ra value is 0.15~0.25μm.

[0035] Step 4) The final rolling temperature during the low temperature hot rolling process is 240~280℃;

[0036] Step 5) During the low-temperature annealing process, the second stage furnace gas temperature is 462~470℃.

[0037] Product appearance quality: thickness deviation <0.005mm, width deviation <0.5mm, convexity <0.24%, hydrogen content <0.065mL / 100gAl; the strip surface is smooth and has no striped scars, uniform color, no light and dark stripes, water ripples and other defects .

Embodiment 3

[0039] The difference between this embodiment and embodiment 1 is that the strip includes the following elements by weight percentage: Si: 0.08%, Fe: 0.035%, Mg: 0.16%, Mn: 0.025%, Zn: 0.004%, V: 0.02% , Ti: 0.012%, Cu: 0.003%, Cr: 0.007%, the balance is aluminum, and the strip surface roughness Ra value is 0.18~0.22μm.

[0040] Step 4) The final rolling temperature during the low temperature hot rolling process is 240~250℃;

[0041] Step 5) During the low-temperature annealing process, the second stage furnace gas temperature is 465°C.

[0042] Product appearance quality: thickness deviation <0.005mm, width deviation <0.5mm, convexity <0.24%, hydrogen content <0.065mL / 100gAl; the strip surface is smooth and has no striped scars, uniform color, no light and dark stripes, water ripples and other defects .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a Computer-to-plate (CTP) printing plate base aluminum strip and a preparation technology thereof. The strip comprises the following elements in percentage by weight: 0.07-0.11%of Si, 0.3-0.4% of Fe, 0.12-0.18% of Mg, 0.015-0.036% of Mn, 0.002-0.004% of Zn, 0.01-0.02% of V, 0.011-0.014% of Ti, 0.001-0.005% of Cu, 0.006-0.009% of Cr, and the balance aluminum; and the surfaceroughness Ra of the strip is 0.15-0.25 microns. The preparation technology comprises the steps of smelting raw materials, casting a slab ingot, thermally processing the slab ingot, thermally rollingunder low temperature, and preparing the strip. According to the CTP printing plate base aluminum strip prepared by the method, longitudinal stripy textures on the surface of a printing plate base blank can be effectively improved, and moreover, the mechanical performances are outstanding in both normal temperature and high temperature; and moreover, the strip has the advantages of being high in ductility, high in corrosion uniformity, and high in baking temperature resistance; and the printing times of downstream customers and the quality of a printing plate base can be obviously improved.

Description

Technical field [0001] The invention belongs to the technical field of CTP printing, and specifically relates to a preparation process of a CTP printing plate base blank. technical background [0002] CTP (computer-to-plate) technology has gradually replaced the traditional analog plate-making method due to its digital, high-efficiency, high-quality, simplicity, and environmental protection, and has become a way for printing companies to achieve technological upgrades. Currently, hot-rolled blank 1050 alloy or hot-rolled blank 1052 alloy is commonly used in the market to produce printing plate-based blanks. After the raw material is hot-rolled and billeted, the non-metallic inclusions (mainly sulfides and oxides, as well as silicates) inside the material are pressed into thin sheets, and delamination (interlayer) occurs when the thin sheets are on the surface of the material , It will cause great damage to the flatness of the surface, especially when the hot-rolled blank is used...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00B21C37/04B41N1/04C22C1/02
CPCB21C37/04B41N1/04C22C1/026C22C21/00
Inventor 陈德波王强刘纯森叶映才吴劲草
Owner 威海海鑫新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap