Method and apparatus for the drying of cemented carbide...

Details Method and apparatus for the drying of cemented carbide... Method and apparatus for the drying of cemented carbide...

2006-05-02

2006-05-02

Ganey, Steven J. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Slinger or splasher; or deflector rotated relative to effluent

Disc impeller type or bowl-like slinger or deflector

C239S222110, C239S500000, C239S555000

Reexamination Certificate

active

07036748

ABSTRACT:
A new method and apparatus for manufacturing powders of cemented carbide, cermets, ceramics and similar materials with good abrasive wear resistance starting from a slurry, wherein the slurry is introduced into a drop forming device including at least one essentially horizontal oriented rotating drop forming disk (12), from which the drops are slung out to solidify by centrifugal force. According to the invention the slurry is ejected from a discharge opening (21) on the drop former in the form of a jet such that it hits a first obliquely downward and inwardly directed surface (22) whereby the speed of rotation of the disk is chosen such that the jet of liquid is forced upwards over the first surface as well as over to another connected horizontal surface (23) and thereafter is ejected as a split jet against a second obliquely downwards-outwards directed surface (25) such that the slurry is accelerated to the speed of the drop forming disk (12) and then is led over a third surface (26) obliquely directed outwards, from where the drops are then caused to detach themselves and fall down, thus forming a powder.

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