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Title:
TITANIUM MATERIAL FOR USE IN HOT ROLLING
Document Type and Number:
WIPO Patent Application WO/2017/018511
Kind Code:
A1
Abstract:
This titanium material 1 for use in hot rolling comprises a base material 1b comprising an industrial pure titanium or titanium alloy, and a surface layer 1a formed on at least one rolled surface of the base material 1b and having a chemical composition different from that of the base material 1b, wherein surface layers 1a have a thickness of 2.0-20.0 mm and make up no more than 40% of the total thickness per side and, when the content of elements included in the surface layer 1a are measured at multiple points, the relation between the average value CAVE of the increased content from the base material 1b and the increased content C0 from the base material 1b at each of the multiple measurement points: |CAVE - C0| / CAVE × 100 is less than or equal to 40%. This titanium material 1 for use in hot rolling has prescribed characteristics despite being inexpensive.

Inventors:
TATSUZAWA, Yoshitsugu (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
KUNIEDA, Tomonori (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
MITSUDA, Koji (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
MORI, Kenichi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
TAKAHASHI, Kazuhiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
FUJII, Hideki (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
Application Number:
JP2016/072333
Publication Date:
February 02, 2017
Filing Date:
July 29, 2016
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
International Classes:
B21B3/00; B21B1/38; B23K15/00; B23K20/04; C22C14/00; C22F1/18; C22F1/00
Domestic Patent References:
2014-10-09
2013-01-31
Foreign References:
US5579988A1996-12-03
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (2-5-10, Sonezaki Kita-ku, Osaka-sh, Osaka 57, 〒5300057, JP)
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