Controlling heat treating furnaces

Details Controlling heat treating furnaces Controlling heat treating furnaces

1990-02-12

1991-10-01

Kastler, S.

Metallurgical apparatus

With control means responsive to sensed condition

With temperature sensor

148128, 374126, 266100, C21D 1100

Patent

active

050526618

ABSTRACT:
A method and apparatus for determining the correct temperature of a heated coil of sheet material and for using said measurement to control a heat treating furnace. The method includes providing a spot of heat resistant material having a known and constant emissivity that is substantially unity on an uneven edge of the coil, the material of the spot remaining on peaks of the uneven edge. The constant emissivity of the spot is independent of that of the edge, the emissivity of which changes and indicates a temperature is substantially different from the true temperature of the edge. The coil is heated and the spot emits infrared energy in an amount that is substantially representative of the correct temperature of the coil and edge. This infrared energy is sensed by an infrared detector aimed at the spot, the output of the energy being indicative of the true temperature of the edge and of the coil mass after it attains the temperature of the edge.

REFERENCES:
patent: 2232594 (1941-02-01), Dike
patent: 2275265 (1942-03-01), Mead
patent: 3020745 (1962-02-01), Sielicki
patent: 3504524 (1970-04-01), Maley
patent: 4408903 (1983-10-01), Baldasarri
patent: 4611930 (1986-09-01), Stein
Rucklidge, A Beginner's Guide to Infra-Red Thermometers, 12/1979.

Affiliated with

Also associated with

Rating

Controlling heat treating furnaces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlling heat treating furnaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlling heat treating furnaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1749458