Metallurgical apparatus – With control means responsive to sensed condition – With temperature sensor
Patent
1987-04-03
1988-08-16
Brody, Christopher W.
Metallurgical apparatus
With control means responsive to sensed condition
With temperature sensor
266252, 266259, C21D 900
Patent
active
047638800
ABSTRACT:
A continuous carburizing furnace system is disclosed having at least two series-connected rotary furnaces. The rotary carburizing furnace, a rotary equalizing furnace, and a rotary diffusion furnace which may be included between the carburizing and equalizing furnaces, allow trays of parts to be discharged from any position at any time by suitable rotation of their hearths, thus allowing parts with different cycle times to be run simultaneously in each rotary furnace. Each donut-shaped rotary furnace includes one or more captive chain type pusher mechanisms mounted in vertical fashion within a central area or hole, and the rotary carburizing furnace is multi-zoned and includes wall-mounted fans for uniform circumferential control of the gaseous atmosphere within its annular chambers. Two different quenching apparatuses and a slow cool assembly adjacent multiple outlets of the equalizing furnace permit the use of different cooling/quenching processes on selected parts, and parts may also be returned from the slow cool assembly to the equalizing furnace for reheating.
REFERENCES:
patent: 1783156 (1930-04-01), Talley
patent: 2013905 (1935-10-01), Adams, Jr.
patent: 2978237 (1961-05-01), Frank
patent: 3197184 (1965-07-01), Narez et al.
patent: 3598381 (1971-08-01), Schwalm et al.
patent: 3662996 (1972-05-01), Schwalm et al.
patent: 3819323 (1974-06-01), Hemsath
patent: 3998703 (1976-07-01), Harrell
patent: 4093195 (1978-01-01), Schwalm
patent: 4412813 (1983-06-01), Wulf
patent: 4662006 (1986-05-01), Hohne
Metal Progress, Sep. 1985, pp. 19-20.
Keil Gary D.
Smith John W.
Brody Christopher W.
Holcroft/Loftus Inc.
Messenger Herbert E.
LandOfFree
Rotary hearth multi-chamber, multi-purpose furnace system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary hearth multi-chamber, multi-purpose furnace system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary hearth multi-chamber, multi-purpose furnace system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-595565