METHOD FOR PRODUCING A METAL FILM

摘要

A method for producing a metal film from an alloy having more than 50% nickel includes the following steps: (a) the alloy is melted in volumes of more than one ton in a vacuum induction furnace, or open in an induction or arc furnace, followed by treatment in a VOD or VLF system, (b) the alloy is then poured off in blocks, electrodes or as continuous casting to form a pre-product, followed by single or multiple re-melting by VAR and/or ESU (c) the pre-product is then annealed between 800 and 1350° C. for 1-300 hours under air or protection gas, (d) the pre-product is then hot-formed between 1300 and 600° C. to reduce the thickness of the input material by the factor 1.5-200, such that the pre-product has a thickness of 1-100 mm after the forming and is not recrystallized, recovered, and/or (dynamically) recrystallized having a grain size of smaller than 300 μm, (e) the pre-product is then pickled, (f) the pre-product is then cold-formed to produce a film having an end thickness of 10-600 μm, having a deformation ratio of greater than 90%, (g) the film is then cut into strips of 5-300 mm following the cold-forming, (h) the film strips are then annealed under protection gas between 600 and 1200° C. for 1 second to 5 hours in a continuous furnace, (i) wherein the annealed, film-like material is recrystallized after the annealing and has a high proportion of cubic texture.

主权项

1. Method for the production of a metal foil from an alloy with more than 50% nickel, containing the following method steps:
(a) the alloy is melted in amounts of more than one metric ton in a vacuum induction furnace or openly in an induction or arc furnace, followed by a treatment in a VOD or VLF system, (b) then the alloy is cast into ingots, electrodes or as continuous casting for the formation of a primary product, if necessary followed by a single or multiple remelting by means of VAR and/or ESU (c) thereafter the primary product is annealed as needed at temperatures between 800 and 1350° C. for 1 hour to 300 hours under air or shielding gas, (d) thereafter the primary product is hot-formed, especially hot-rolled, at temperatures between 1300 and 600° C., wherein the thickness of the starting material is reduced by the factor of 1.5-200, so that the primary product has a thickness of 1 to 100 mm after the forming and has not been recrystallized and/or annealed out and/or has been (dynamically) recrystallized with a grain size smaller than 300 mm, especially smaller than 100 mm, (e) the primary product is then pickled, (f) thereafter the primary product is cold-worked with a degree of deformation of greater than 90% for the production of a foil with a final thickness of 10 to 600 mm, especially of 40 to 150 mm, (g) subsequent to the cold-forming, the foil is cut into strips of 5 to 300 mm, (h) the foil strips are then annealed under shielding gas at temperatures between 600 and 1200° C. for 1 second to 5 hours in a continuous furnace, (i) wherein the annealed foil-like material is recrystallized and exhibits a large proportion of cubic texture after this annealing.