Method for producing substrate of precoated sensitive plate from aluminum alloy

Abstract

The invention discloses a method for producing a pre-coated photographic plate substrate by adopting an aluminum alloy which mainly includes the following components of: 0.15 to 0.30 percent of Fe, less than 0.10 percent of Si, less than 0.03 percent of Cu, less than 0.03 percent of Mn, 0.13 to 0.25 percent of Mg, less than 0.03 percent of Zn, 0.01 to 0.02 percent of Ti, the signal content of other impurities is less than 0.03 percent, the total amount is equal to or less than 0.15 percent; the Al is equal to or more than 99.45 percent; the pre-coated photographic plate is mainly produced by a cast ingot by adopting the methods of thermal rolling and cold rolling; the method of the invention adopts the methods of thermal rolling and cold rolling to roll and the adjusting of the alloy components to solve the technical difficulty that a medical foil turns soft when passes through an oven and improve the intensity of the medical foil.

Description

technical field [0001] The invention belongs to the field of nonferrous metal processing, in particular to a method for producing a precoated photosensitive plate base by using aluminum alloy. Background technique [0002] The pre-coated photosensitive plate is a printing plate that is pre-coated with a photosensitive layer on an aluminum plate and then sold to a printing factory. It consists of two parts: the photosensitive layer that accepts the image and the carrier (plate base) of the photosensitive layer. Nitrogen, nitro and other photosensitizers and resins are used to prepare photosensitive glue, which is coated on the plate base and can be stored for later use after drying. The aluminum base of the pre-coated photosensitive plate is the carrier of the photosensitive layer of the pre-coated photosensitive plate, that is, a thin aluminum plate with a thickness of 0.15mm and 0.27mm. [0003] At present, the base materials used in large quantities are 1050A, 1060, etc. ...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the printing durability of the pre-coated photosensitive plate is generally around 100,000 impressions, and the printing durability of the pre-coated photosensitive plate after baking can be increased by 3 to 5 times, reaching 300,000 to 500,000 impressions, but now there are many manufacturers It reflects that the printing durability of the pre-coated photosensitive plate is not high, generally only 20,000 to 30,000 impressions, and even after printing a few thousand sheets, the plate will start to drop