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Aluminium base material hot continuous rolling process used in PS plate

A technology of pre-coating photosensitive and aluminum substrates, applied in printing process, printing plate, metal rolling, etc., can solve the problems of corrosion metal peeling, local corrosion speed fluctuation, etc., to reduce rolling times, improve shape and distribution, Good applicability

Active Publication Date: 2009-04-22
SOUTHWEST ALUMINUM GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aluminum substrate for pre-coated photosensitive plates produced by this production process is not ideal in terms of compound uniformity and electrolytic corrosion uniformity, so there are still uneven corrosion phenomena such as local corrosion rate fluctuations and corrosion metal peeling off. There is still room for improvement in the printed products of the pre-coated photosensitive plate

Method used

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  • Aluminium base material hot continuous rolling process used in PS plate
  • Aluminium base material hot continuous rolling process used in PS plate
  • Aluminium base material hot continuous rolling process used in PS plate

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Embodiment Construction

[0016] The hot continuous rolling process of the aluminum substrate for the pre-coated photosensitive plate of the present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0017] 1. The process of continuous hot rolling of aluminum substrates for pre-coated photosensitive plates is as follows:

[0018] After the 520mm thick aluminum ingot is milled with 15mm on each side, it is heated in a pusher type continuous heating furnace to a metal temperature of 460-480°C, generally 470°C, and then kept for 1 hour and then rolled out of the furnace.

[0019] The hot rough rolling initial rolling temperature is 470°C, and the ingot is rolled from 495mm to 35mm plate after 11 rollings, and the 11 rolling process is as follows:

[0020] 495mm-475mm-450mm-415mm-365mm-305mm-245mm-185mm-135mm-95mm-60mm-35mm, the final rolling temperature is controlled at 360-380°C.

[0021] The hot finish rolling is rolled four times, and the p...

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Abstract

The invention relates a PS version aluminum base material heat rolling, then heat rough rolling then fine rolling, with previous rolling temperature starting from 470deg.C to 360-380deg.C finally after 11 times rolling, till 230-250deg.C after 4 times fine rolling. The aluminum base thermal rolling process is even in distribution and evasive, with electrolytic corrosion obviously better than that of traditional one.

Description

technical field [0001] The invention relates to a production method of an aluminum base material for a pre-coated photosensitive plate. By improving the hot continuous rolling process of the aluminum base material, the quality of the pre-coated photosensitive aluminum base material can be improved, and the pre-coated photosensitive aluminum base material produced by it can be guaranteed. The grain structure, size and uniform distribution required for plate formation. Background technique [0002] In the process of producing pre-coated photosensitive plates with aluminum substrates, the most important process is to electrolytically roughen the aluminum substrates to form the required grain structure, size and uniform distribution, so as to ensure the printing quality of the pre-coated photosensitive plates produced. Printed images have good reproducibility, high definition and rich colors. The quality of precoated photosensitive plates, especially the grain quality after ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/74B21B37/16B21B1/26B41N1/04
Inventor 赵世庆陈昌云尹晓辉游江海黄平卢永红郭金龙明文良陈代伦
Owner SOUTHWEST ALUMINUM GRP
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