C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
49/53
C03B 37/012 (2006.01) C03B 19/06 (2006.01) C03B 20/00 (2006.01) C03B 37/014 (2006.01) F27D 7/00 (2006.01) F27D 19/00 (2006.01)
Patent
CA 1290149
HEAT TREATING APPARATUS AND METHOD OF OPERATING HEAT TREATING APPARATUS ABSTRACT OF THE DISCLOSURE A heat treating apparatus which comprises a core tube for containing a material to be treated, a heating furnace sur- rounding the core tube, core tube gas supply means for supplying gas into the core tube, furnace gas supply means for supplying gas into a furnace body of the furnace, differential pressure detecting means for detecting the differential pressure between the pressure in the core tube and the gas pressure in the body, and differential pressure regulating means for regulating the differential pressure between the gas pressure in the core tube and the gas pressure in the body on the basis of a differential pressure signal from the detecting means. The apparatus is ope- rated by a method of operating the apparatus which comprises the step of regulating the gas pressure in the core tube so that the differential pressure between the gas pressure in the core tube and the gas pressure in the body fall within a tolerable range. Thus, the apparatus can prevent the core tube from deforming.
509669
Ridout & Maybee Llp
The Furukawa Electric Co. Ltd.
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