CLEANING AND HEAT TREATING AL SHEETS

摘要

The invention relates to a method of making sheets of aluminium suitable for drawing. The method according to the invention comprises subjecting the product issuing from a continuous casting machine to a mechanical cleaning treatment and then to a controlled heat treatment in air at elevated temperature. The method according to the invention is applicable in every case where aluminium products, such as strips etc. are subjected to drawing or reducing operations and in cases where it is desired to eliminate galling phenomena and to guarantee aesthetic qualities. The method according to the invention is used in particular in the manufacture of cans from blanks obtained by casting between cylinders.