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Title:
CAST TITANIUM SLAB FOR USE IN HOT ROLLING AND UNLIKELY TO EXHIBIT SURFACE DEFECTS, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/051503
Kind Code:
A1
Abstract:
A cast titanium slab comprising industrial pure titanium, wherein: an α-phase stabilizing element, a neutral element, or one or more types of elements selected therefrom are added to a surface serving as a rolling surface; a melted-resolidified layer obtained by melting and resolidifying has a depth in the range of 1mm or more; and the average concentration of the sum of the α-phase stabilizing element and the neutral element in the range up to a depth of 1mm, in comparison to the concentration of the sum of the α-phase stabilizing element and the neutral element in the base material, in mass%, is higher by at least 0.1% and less than 2.0%.

Inventors:
KUNIEDA, Tomonori (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
TATSUZAWA, Yoshitsugu (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:
JP2014/076084
Publication Date:
April 07, 2016
Filing Date:
September 30, 2014
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:
C23C26/00; B21B1/02; B21B3/00; B22D21/06; B22D29/00; C22C14/00
Domestic Patent References:
WO2012108319A12012-08-16
WO2014163086A12014-10-09
Foreign References:
JP2007332420A2007-12-27
JP2007084855A2007-04-05
Other References:
See also references of EP 3202952A4
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (Hazuki International Yotsuya, Daiichi Tomizawa Building 1-3, Yotsuya 3-chom, Shinjuku-ku Tokyo 04, 〒1600004, JP)
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