Plastic article or earthenware shaping or treating: apparatus – Means making particulate material directly from liquid or... – By means applying fluid jet or blast to unconfined liquid...
Patent
1980-05-19
1981-08-18
Czaja, Donald E.
Plastic article or earthenware shaping or treating: apparatus
Means making particulate material directly from liquid or...
By means applying fluid jet or blast to unconfined liquid...
B22F 900
Patent
active
042843936
ABSTRACT:
Apparatus for manufacturing powder, especially metallic powder, by a melt atomization process, comprises a closed container in which a jet of gas is directed transversely into a stream of the melt and breaks it down into droplets which rapidly solidify and are thrown in a parabolic trajectory to the lower part of the container. In the lower part of the container there is an inclined bottom or a shaking table on which the powder flows to an outlet opening. Means are provided for withdrawing gas from the container, cooling it and re-introducing it into the lower part of the container where it is forced by guide means to flow in contact with the powder flowing to the outlet opening. The flow direction of this re-introduced gas is substantially opposite to the direction of flow of the powder to the outlet opening, so that it has an efficient cooling effect on the powder.
REFERENCES:
patent: 2630623 (1953-03-01), Chisholm et al.
patent: 3340566 (1967-09-01), Woosley et al.
Brunosson Gunnar
Larsson Hans-Gunnar
Westman Erik
ASEA Aktiebolag
Czaja Donald E.
Hall James R.
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