Bottom rollers of vertical heat treating furnace and furnace therewith

Application Number: 00108736
Application Date: 2000.05.31
Publication Number: 1326007
Publication Date: 2001.12.12
Priority Information:
International: C21D9/70
Applicant(s) Name: Kawasaki Steel Corp.
Inventor(s) Name: Iida Sukehiro
Patent Agency Code: 72001
Patent Agent: zhang tianan
Abstract A vertical heat treating furnace and the bottom roller for heating and soaking furnace are disclosed. Said bottom roller features that the axial conic angle of the first conic part linked with central flat part is greater than that of the second conic part. The length Lc (mm) of the central flat part and the length L1 (mm) of the first conic part conform with the equations: Lc=0.5 Wmin-Wmin and Lc+2XL1=Wmin-(Wmax-400), where Wmin is the minimal width (mm) of metal band and the Wmax is the maximal width (mm) of metal band.