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Title:
COMPOSITE HARDFACING WELDING WIRE, SINTER CAKE SUPPORT STAND USING THE SAME, AND DOWNDRAFT SINTERING MACHINE
Document Type and Number:
WIPO Patent Application WO/2010/090339
Kind Code:
A1
Abstract:
Disclosed is a composite hardfacing welding wire made from a low carbon steel hoop and a filler, which is for a sinter cake support stand used in a downdraft sintering machine and prolongs the stand replacement cycle and provides for extended stand life, and consequently can contribute to improved productivity in the manufacture of sintered ore. The wire is made to include, in mass%, (A) C: 3‑6%, (B) Si: 0.8‑2%, (C) Cr: 20‑30%, and (D) Mo: 4‑8%, and to further include either (E) Nb: 3‑8%, B: 0.4% or less (including 0), (F) Nb: 8% or less (including 0) and B: 0.2‑0.4%, the remainder being Fe, Mn, and inevitable impurities.

Inventors:
ITOH, Yohhei (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
伊藤洋平 (〒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)
YUKIYAMA, Makoto (2-27, Showa-dori 2-chome, Amagasaki-sh, Hyogo 81, 〒6600881, JP)
Application Number:
JP2010/052005
Publication Date:
August 12, 2010
Filing Date:
February 04, 2010
Export Citation:
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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)
TOKUDEN CO., LTD. (2-27, Showa-dori 2-chome Amagasaki-sh, Hyogo 81, 〒6600881, JP)
特殊電極株式会社 (〒81 兵庫県尼崎市昭和通2丁目2番27号 Hyogo, 〒6600881, JP)
ITOH, Yohhei (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
International Classes:
B23K35/30; F27B21/08
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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