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Title:
HEARTH ROLL FOR ANNEALING FURNACE FOR STAINLESS STEEL SHEET
Document Type and Number:
Japanese Patent JP2003073745
Kind Code:
A
Abstract:

To provide a hearth roll for an annealing furnace for a stainless steel sheet, which hardly causes pick-up of oxidized scale even when produced in centrifugal casting, it inexpensive and has the longer life than a conventional one.

In the hearth roll for the annealing furnace for the stainless steel, which has a roll shaft body provided with an inside structure to be water cooled, and a sleeve attached so as to surround the roll shaft while forming a gap between them through a hub material, the sleeve includes 30-51 mass% Ni, 20-31 mass% Cr, and the balance Fe with unavoidable impurities, and is made by centrifugal casting of a heat resistant alloy steel.


Inventors:
IMAMURA MOTOKI
WADA YASUHIRO
Application Number:
JP2001264042A
Publication Date:
March 12, 2003
Filing Date:
August 31, 2001
Export Citation:
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Assignee:
KAWASAKI STEEL CO
International Classes:
F16C13/00; B22D13/02; C21D9/56; C22C19/05; (IPC1-7): C21D9/56; B22D13/02; C22C19/05; F16C13/00
Domestic Patent References:
JPS5416321A1979-02-06
JPS5332816A1978-03-28
JPS55161047A1980-12-15
JPH03240930A1991-10-28
JPH03111537A1991-05-13
JPS4954222A1974-05-27
JP2000129404A2000-05-09
JPS5757863A1982-04-07
JPH01152245A1989-06-14
Attorney, Agent or Firm:
Yoshio Kosugi (1 person outside)