Titanium slab for hot rolling produced by electron-beam melting furnace, process for production thereof, and process for rolling titanium slab for hot rolling

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United States of America Patent

PATENT NO 9962760
SERIAL NO

13148392

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Abstract

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A titanium slab is appropriate for hot rolling, is produced by electron beam melting furnace, has superior linearity so that it can be fed into a hot rolling machine without performing breaking down process or other subsequent correcting process after production, and has good structure having no cracks at the corner parts. A process for production thereof is also provided. The titanium slab is directly produced by a mold of an electron beam melting furnace, and has the deformation of not more than 5 mm for the thickness direction versus the longitudinal direction and deformation of not more than 2.5 mm for the width direction versus the longitudinal direction, both per a length of 1000 mm of the slab. The process for production of this titanium slab for hot rolling has a step of using an electron beam melting furnace in which its rectangular mold has mold walls of a long side and mold walls of a short side, and a step of pouring molten metal from one of the mold walls of a short side. Furthermore, a mold having chamfered parts at the corner parts can be used in the process.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONCHIYODA-KU TOKYO 100-8071

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Yoshihiro Tokyo, JP 32 540
Miyazaki, Yoshimasa Tokyo, JP 4 7
Oda, Takashi Chigasaki, JP 159 1296
Shiraki, Takeshi Chigasaki, JP 19 290
Takahashi, Kazuhiro Tokyo, JP 419 3644
Tanaka, Hisamune Chigasaki, JP 8 18
Yamamoto, Norio Chigasaki, JP 70 658

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