Title:
RAIL PRODUCING METHOD AND PRODUCING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2002/102537
Kind Code:
A1
Abstract:
A rail producing method and producing equipment capable of effectively reducing bending at the ends of a rail and also cut−away waste, the rail producing method being characterized by comprising the steps of cooling a hot−rolled rail to room temperature while being kept at a substantially rolled length, and then cutting it to a specified length by at least three cold sawing−off machines simultaneously. Rail producing equipment characterized by comprising a conveying bed capable of moving a rail, cooled to room temperature while being kept at a substantially rolled length, in a rolling direction and&sol or a direction perpendicular to the rolling direction, and at least three cold sawing−off machines juxtaposed to the conveying bed.
Inventors:
Onodera, Noriaki (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Shibata, Masafumi (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Miwa, Masanori (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Fujita, Kazuo (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Shibata, Masafumi (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Miwa, Masanori (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Fujita, Kazuo (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Application Number:
PCT/JP2002/005308
Publication Date:
December 27, 2002
Filing Date:
May 30, 2002
Export Citation:
Assignee:
NIPPON STEEL CORPORATION (6-3 Otemachi 2-chome Chiyoda-ku, Tokyo, Tokyo, 100-8071, JP)
Onodera, Noriaki (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Shibata, Masafumi (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Miwa, Masanori (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Fujita, Kazuo (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Onodera, Noriaki (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Shibata, Masafumi (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Miwa, Masanori (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
Fujita, Kazuo (C/O NIPPON STEEL CORPORATION YAWATA WORKS 1-1, Tobihata-cho Tobata-ku Kitakyushu-shi, Fukuoka, 804-8501, JP)
International Classes:
B21B15/00; B21B43/00; B23D45/00; B23D45/10; B21B1/08; B21B38/00; B21B45/02; (IPC1-7): B23D45/10; B21B43/00
Attorney, Agent or Firm:
Ishida, Takashi (A. AOKI, ISHIDA & ASSOCIATES Toranomon 37 Mori
Bldg. 5-, Toranomon 3-chome Minato-ku Tokyo, 105-8423, JP)
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