METHOD FOR PRODUCING SUBJECT RESTORED ANNEALING OF STEEL SUBSTRATE WITH COATING FOR PACKING APPLICATIONS AND PRODUCTION FROM PACKING STEEL RECEIVED WITH ITS HELP

摘要

1. A method of manufacturing a re-annealed coated steel substrate for packaging applications, comprising the steps of: providing a steel slab or strip suitable for producing a low-carbon, ultra-low-carbon or ultra-low-carbon hot-rolled strip, for producing packaging steel by hot rolling at a final temperature greater than or equal to Ar3 conversion temperature; cold rolling of the obtained steel strip to obtain a single-rolled steel substrate; electrodeposition a tin layer on one or both sides of the single-rolled steel substrate to obtain a tinned steel substrate, the coating mass of the tin layer or layers on one or both sides of the substrate being at most 1000 mg / m2; annealing the tinned steel substrate at a temperature Ta of at least 513 ° C with annealing time ta: - to convert the tin layer to a layer of iron-tin alloy, which contains at least 80 weight percent (wt.%) FeSn (50 at.% Iron and 50 at.% Tin), and - to get refurbished at the same time ikrostrukturu and thus not occurred recrystallization rolling single substrate (i.e. reduction annealing); rapid cooling of the annealed substrate at a cooling rate of at least 100 ° C / s. 2. A method of manufacturing a coated substrate for packaging applications according to claim 1, wherein the iron-tin alloy layer contains at least 85 wt.% FeSn, preferably at least 90 wt.%, More preferably at least 95 wt.%. 3 . The method according to any one of paragraphs. 1-2, in which annealing is performed in an atmosphere of a reducing gas, such as HNX, while holding the coated substrate in the atmosphere