Heating – Processes of heating or heater operation – Including apparatus purging – cleaning or accretion preventing
Patent
1983-03-29
1984-09-11
Camby, John J.
Heating
Processes of heating or heater operation
Including apparatus purging, cleaning or accretion preventing
266102, 432 59, 432246, F24D 2302, F27D 300
Patent
active
044708025
ABSTRACT:
In a continuous annealing furnace, a steel strip is conveyed by conventional hearth rolls made of heat-resistant cast steel, such as HK 40. However, since the formation of buildup is frequent, conventional hearth rolls are inappropriate for long-term operation of a continuous annealing furnace. In the hearth roll of the present invention, which consists of a solid or hollow roll body and a surface layer, the surface layer containing more than 15% by weight of Nb and the balance being inorganic material, the formation of buildup is not frequest, thereby making long-term operation of a continuous annealing furnace possible.
REFERENCES:
patent: 2695247 (1954-11-01), Ornitz et al.
patent: 2772872 (1956-12-01), Ornitz
patent: 2984473 (1961-05-01), Ornitz et al.
patent: 4391879 (1983-07-01), Fabian et al.
Otoguro Yasuo
Yamanaka Mikio
Zaizen Takashi
Camby John J.
Nippon Steel Corporation
LandOfFree
Highly buildup-resistant hearth roll for conveying a steel strip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Highly buildup-resistant hearth roll for conveying a steel strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly buildup-resistant hearth roll for conveying a steel strip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1193113