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
WADA YASUHIRO
Application Number:
JP2001264042A
Publication Date:
March 12, 2003
Filing Date:
August 31, 2001
Export Citation:
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:
JPS5416321A | 1979-02-06 | |||
JPS5332816A | 1978-03-28 | |||
JPS55161047A | 1980-12-15 | |||
JPH03240930A | 1991-10-28 | |||
JPH03111537A | 1991-05-13 | |||
JPS4954222A | 1974-05-27 | |||
JP2000129404A | 2000-05-09 | |||
JPS5757863A | 1982-04-07 | |||
JPH01152245A | 1989-06-14 |
Attorney, Agent or Firm:
Yoshio Kosugi (1 person outside)