Title:
WELD STRUCTURE HAVING RESISTANCE TO BRITTLE CRACK PROPAGATION
Document Type and Number:
WIPO Patent Application WO/2012/008056
Kind Code:
A1
Abstract:
Disclosed is a weld structure in which a steel plate weld joint is formed by butt-welding steel plates together, wherein: an anti-crack control section in which the propagation of brittle cracks generated in the steel plate weld joint are stopped is disposed on at least one section of the steel plate weld joint; and the outer peripheral section of an arrestor member configuring the anti-crack control section is formed on the front and rear of the steel plate weld joint in the lengthwise direction so as to intersect with the steel plate weld joint at an angle between 60° to 120° relative to the lengthwise direction. As a consequence, it is possible to prevent brittle cracks from propagating the weld joint or the base material even when brittle cracks form on the weld joint.
Inventors:
ISHIKAWA, Tadashi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
INOUE, Takehiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
井上 健裕 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
INOUE, Takehiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
井上 健裕 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
Application Number:
JP2010/062279
Publication Date:
January 19, 2012
Filing Date:
July 14, 2010
Export Citation:
Assignee:
NIPPON STEEL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
ISHIKAWA, Tadashi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
INOUE, Takehiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
ISHIKAWA, Tadashi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
INOUE, Takehiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
International Classes:
B23K31/00; C22C38/00; C22C38/04; C22C38/58
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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Claims: