Method for directly casting and rolling aluminum plate base for PS plate with electrolytic aluminium liquid

Abstract

The invention relates to a method for cast-rolling to produce aluminum substrates used in PS plates directly by electrolytic aluminum liquid; the main steps are as follows: electrolyzing the aluminum liquid under the high temperature, smelter hearth, adjusting element compositions, refining, conducting the furnace, adjusting the temperature to 740 DEG C to 750 DEG C, adding Al-Ti-B refiners to carry out the grain refinement, degassing, filtering, cast-rolling coils of strip, cool rolling, stretch bending and straightening, and producing finished products; various steps of the invention are synthesized to optimize technique parameters; the prepared aluminum substrates used in the PS plates is high in tensile strength and elongation, and the quality of the prepared aluminum substrates are better than that of similar products, thus omitting the remelting process when aluminum ingots are used, saving resources, reducing the production cost and increasing the economic and social benefits.

Description

technical field [0001] The invention relates to a production method of an aluminum plate base for a PS plate, in particular to a method for producing an aluminum plate base for a PS plate by direct casting and rolling of electrolytic aluminum liquid. Background technique [0002] Offset printing is the main method of contemporary printing. Today's offset printing plates, whether it is the traditional PS plate or the CTP plate introduced in recent years, are all pre-coated photosensitive plates with aluminum substrates as the support. PS plate is the abbreviation of pre-coated photosensitive plate. It is a lithographic plate with pre-coated photosensitive layer that can be used for printing at any time. It is made by coating non-silver photosensitive (thermal) resin layer. The PS plate has the advantages of high resolution, strong reproducibility, clear writing, convenient automatic plate-making and printing, and high economic benefits, and has been highly valued by the prin...

AI Technical Summary

Problems solved by technology

The disadvantage of the hot rolling method is that it needs to cut the head and tail, face milling and heating, the process is long and the cost is high

The casting and rolling method does not need to cut the head and tail, does not need to mill the face, improves the yield, does not need heating, greatly shortens the process flow, and saves the ingot heating and hot rolling equipment, but the defect of the casting and rolling method is that it needs to The aluminum ingots cast by electrolytic aluminum liquid are remelted, which wastes resources and high production costs