Document Type and Number:
Japanese Patent JPS4871307
Kind Code:
A
Abstract:
A reheating furnace for slabs or billets is provided with at least one temperature measuring device having an upwardly directed radiation receiving surface provided by a plate located at the upper end of a cyclindrical housing. Substantial thermal insulation is provided around the housing and in use the radiation receiving surface of the plate is disposed closely adjacent to and facing the underside of a slab being heated, the thermal insulation shielding the surface from ambient radiation whereby radiation is received by the surface substantially solely from the under surface of the slab.
Application Number:
JP12921072A
Publication Date:
September 27, 1973
Filing Date:
December 22, 1972
Export Citation:
International Classes:
C21D9/00; C21D1/00; C21D11/00; F27B9/36; (IPC1-7): C21D9/70