Device and method for making and collecting fine metallic powder

Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

266200, 266207, B22F 900

Patent

active

045333823

ABSTRACT:
Fine powder of a metal is made by vaporizing the metal in a vaporization chamber, mixing the metallic vapor with an inert carrier gas, and then adiabatically expanding the mixture through a nozzle, which preferably is a convergent-divergent nozzle. A jet flow from the nozzle is very rapidly cooled by this adiabatic expansion, which quickly condenses the metal vapor in the jet flow into very fine particles. Optionally the jet flow is directed against a metal powder collecting means, which may be a collection plate, but preferably is a bath of oil which entrains the particles and keeps them from agglomerating together by partially neutralizing their surface activity. Thus fine metal powder with particle diameters of the order of a few hundreds of angstroms can be economically produced.

REFERENCES:
patent: 3352637 (1967-11-01), Heymer et al.
patent: 4191556 (1980-03-01), Rothblatt
patent: 4484943 (1984-11-01), Miura et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Device and method for making and collecting fine metallic 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 Device and method for making and collecting fine metallic powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for making and collecting fine metallic powder will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-510613

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.