| 摘要 |
1,056,131. Making steel foil. NATIONAL STEEL CORPORATION. Feb. 7, 1964 [Feb. 8, 1963], No. 5234/64. Heading B3A. In a method of producing metal plated steel foil, a metallic coating is applied to strip steel 0À003 inch to 0.065 inch thick and of a carbon content not greater than 0À15% and the strip is cold reduced, without annealing the steel, to a thickness of between 0.0001 inch to 0.002 inch. The thickness of the coating metal applied is not more than 0.001 inch and it may be tin, terne, zinc, aluminium, aluminium alloy, copper, copper alloy, cadmium, stainless steel, silver, gold, titanium, chromium, chromium alloy, nickel, nickel alloy or nickel-chrome alloy. The cold reduction is carried out by cold rolling passes of 10% to 90% reduction per pass, depending on the desired properties of the finished foil, the range of 40% to 6% being preferred. Alternatively the steel strip may be similarly rolled into foil without prior plating. Larger reductions per pass reduce the springiness of the foil and the coating should be either self-annealing or permit cold reduction in the range required without annealing. The steel foil may be used, plated or unplated, with one or more of the following, thermosetting or thermoplastic films, natural and synthetic textiles, felts, fibres and filaments, plastic, fibre and wood sheeting. |
