ROLLING MACHINE AND TANDEM ROLLING FACILITY EQUIPPED WITH SAME - MITSUBISHI-HITACHI METALS MACHINERY, INC.

Title:

ROLLING MACHINE AND TANDEM ROLLING FACILITY EQUIPPED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2012/008030

Kind Code:

A1

Abstract:

Provided are a rolling machine which has a work roll adequately reduced in diameter to effectively roll a hard rolled material and a tandem rolling facility equipped with the same. To this end, the rolling machine (11) includes a pair of upper and lower work rolls (22); a pair of upper and lower intermediate rolls (23) which support the respective work rolls (22) from above and below and are supported to be movable along the roll axis, the intermediate rolls (23) having a tapered portion (23b) at the end portions of the upper and lower rolls, the end portions being symmetric about a point on the center of plate width of the rolled material (1); a pair of upper and lower reinforcing rolls (24) for supporting the respective intermediate rolls (23) from above and below; a pair of upper and lower support rolls (41a to 41d) for supporting the respective work rolls (22) from the inlet and outlet sides; and two pairs of upper and lower separate bearing shafts (42a to 42d, 43a to 42d) for supporting the respective support rolls (41a to 41d) from the inlet and outlet sides, wherein the work roll has a diameter range of (the work roll diameter)/(the maximum plate width of the rolled material) being greater than 0.1 and equal to or less than 0.16.

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Inventors:

NORIKURA Takashi (INC. 34-6 Shiba 5-chom, Minato-ku Tokyo 14, 〒1080014, JP)

Application Number:

JP2010/061935

Publication Date:

January 19, 2012

Filing Date:

July 15, 2010

Export Citation:

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Assignee:

MITSUBISHI-HITACHI METALS MACHINERY, INC. (34-6, Shiba 5-chome Minato-ku Tokyo, 14, 〒1080014, JP)
三菱日立製鉄機械株式会社 (〒14 東京都港区芝五丁目３４番６号 Tokyo, 〒1080014, JP)

International Classes:

B21B13/14; B21B13/02; B21B27/00

Attorney, Agent or Firm:

MITSUISHI Toshiro et al. (Mitsuishi Law and Patent Office, 9-15 Akasaka 1-chome, Minato-k, Tokyo 52, 〒1070052, JP)

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