Method for producing hot-rolled titanium plate

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United States of America Patent

PATENT NO 11479839
APP PUB NO 20200340092A1
SERIAL NO

16757140

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Abstract

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A method for producing a hot-rolled titanium plate includes, [1] melting at least one part of the side surface of the titanium slab by radiating a beam or plasma toward the side surface, not toward the surface to be rolled, and thereafter causing re-solidification to form, in the side surface, a layer having grain diameter of 1.5 mm or less and a depth of 3.0 mm or more from the side surface; [2] performing a finishing process on the surface to be rolled of the titanium slab in which the layer is formed, to thereby bring a slab flatness index X to 3.0 or less; and [3] subjecting the titanium slab after the finishing process to hot rolling under a condition in which a length of an arc of contact of a roll L in a first pass of rough rolling is 230 mm or more.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONTOKYO JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Hideki Tokyo, JP 140 728
Kunieda, Tomonori Tokyo, JP 19 29
Mori, Kenichi Tokyo, JP 301 3768
Takahashi, Kazuhiro Tokyo, JP 419 3644
Tatsuzawa, Yoshitsugu Tokyo, JP 10 17

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