Heat treatment by plasma electron heating and solid/gas jet cool

Details Heat treatment by plasma electron heating and solid/gas jet cool Heat treatment by plasma electron heating and solid/gas jet cool

1993-08-27

1999-02-09

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148222, 148586, 148660, 148712, 148713, 21912159, C21D 109

Patent

active

058688781

ABSTRACT:
A workpiece is heated by first forming an ionized gas plasma around the workpiece. A positive potential is applied to the workpiece to accelerate electrons from the plasma into the workpiece. The workpiece is uniformly surface heated by the energy directed into the workpiece by the electrons. The workpiece is cooled by providing a flow of a pressurized liquid material such as carbon dioxide having a triple point. The liquid material is expanded through a nozzle to form solid particles that contact the surface of the workpiece and remove heat from it by subliming.

REFERENCES:
patent: 2890975 (1959-06-01), Lenz
patent: 3503787 (1970-03-01), Pendse
patent: 3928090 (1975-12-01), Randerson
patent: 4121954 (1978-10-01), Dewsnap et al.
patent: 4317984 (1982-03-01), Fridlyand
patent: 4500564 (1985-02-01), Enomoto
patent: 4551183 (1985-11-01), Tamm et al.
patent: 4872926 (1989-10-01), Giacobbe
patent: 4900371 (1990-02-01), Dexter et al.
Translations (informal and not certified) obtained by Applicants enclosed herewith.
J. Pelletier and Y. Arnal, "New Application for Multipolar Plasmas: High-Temperature treatment of materials" Oct. 1984 American Institute of Physics, pp. 1636-1638.
R. Holoboff, B. Lhote, R. Speri and O. Delcourt "Vacuum Quenching Improvements through Controlled Atmospheres" 22-25 Sep. 1992 Proceedings of the First International Conference on Quenching & Control of Distortion. pp. 113-116.
E. J. Radcliffe, "Gas Quenching in Vacuum Furnaces--a Review of Fundamentals" Nov. 1987 pp. 34-39.

Affiliated with

Also associated with

Rating

Heat treatment by plasma electron heating and solid/gas jet cool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat treatment by plasma electron heating and solid/gas jet cool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat treatment by plasma electron heating and solid/gas jet cool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1945926