Making iron powder

Details Making iron powder Making iron powder

1979-02-07

1981-06-23

Lewis, Michael L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05C, 264 11, B22F 104

Patent

active

042748640

ABSTRACT:
Iron powder of high compressibility and low bulk density is made by atomizing a stream of molten steel by means of a conical jet of water at a rate in excess of 10 cubic meters water per metric ton of steel, the half cone angle is between 40.degree. and 60.degree., preferably 45.degree.; and air suction is provided in a region upstream from the cone, adjacent to the stream at a pressure of 0.02 to 0.20 bars below ambient, by means of a length adjustable tube extending down from the nozzle chamber. The powder is reduced at 1,000.degree. C. to 1,200.degree. C., and the resulting cake is broken up to obtain a powder having a particle size distribution with a higher content of larger particles than the powder immediately resulting from the atomization.

REFERENCES:
patent: 3325277 (1967-06-01), Huseby
patent: 3668024 (1972-06-01), Johnson
patent: 3752712 (1973-08-01), Holcomb
patent: 3900309 (1975-08-01), Chao et al.
patent: 3909239 (1975-09-01), Findeisen et al.
patent: 3954461 (1976-05-01), Chao et al.
patent: 4124377 (1978-11-01), Larson

Affiliated with

Also associated with

Rating

Making iron powder does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2206253