Method for producing a metal film

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United States of America Patent

PATENT NO 10923248
APP PUB NO 20160071632A1
SERIAL NO

14787159

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Abstract

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A method for producing a metal film from an over 50% nickel alloy melts more than one ton of the alloy in a furnace, followed by VOD or VLF system treatment, then pouring off to form a pre-product, followed by re-melting by VAR and/or ESU. The pre-product is annealed 1-300 hours between 800 and 1350° C. under air or protection gas, then hot-formed between 1300 and 600° C., such that the pre-product then has 1-100 mm thickness after the forming and is not recrystallized, recovered, and/or (dynamically) recrystallized having a grain size below 300 μm. The pre-product is pickled, then cold-formed to produce a film having 10-600 μm end thickness and a deformation ratio greater than 90%. The film is cut into 5-300 mm strips, annealed 1 second to 5 hours under protection gas between 600 and 1200° C. in a continuous furnace, then recrystallized to have a high cubic texture proportion.

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Patent Owner(s)

Patent OwnerAddress
VDM METALS INTERNATIONAL GMBH58791 WERDOHL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Boer Nicole Altena, DE 3 5
Gilges, Stefan Altena, DE 3 3
Hattendorf, Heike Werdohl, DE 26 81
Heckmann, Andreas Dortmund, DE 3 8

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