<titlePart> <text>SECTION B <emdash/> PERFORMING OPERATIONS</text> </titlePart> <titlePart> <text>TRANSPORTING</text> </titlePart> LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION Method General operations by centrifugal force, using centrifuges or free-vortex apparatus using magnetic or electrostatic effect Apparatus General operations by centrifugal force, using centrifuges or free-vortex apparatus , using magnetic or electrostatic effect SOLID/LIQUID OR SOLID/GAS SEPARATION Method General operations by centrifugal force using centrifuges or free-vortex apparatus using magnetic or electrostatic effect Apparatus General operations by centrifugal force using centrifuges or free-vortex apparatus , using magnetic or electrostatic effect SOLID/SOLID SEPARATION Method Dry methods material in bulk Individual sorting Screening, sifting, pneumatic sorting using pneumatic tables or jigs by magnetic or electrostatic effect by centrifugal force using centrifuges or free-vortex apparatus Wet methods General operations flotation, differential sedimentation screening Combinations Dry methods - wet methods Apparatus Dry methods material in bulk Individual sorting Screening, sifting, pneumatic sorting using pneumatic tables or jigs by magnetic or electrostatic effect by centrifugal force using centrifuges or free-vortex apparatus , Wet methods General operations flotation, differential sedimentation screening Combinations Dry methods - wet methods <titlePart> <text>SHAPING</text> </titlePart> <titlePart> <text>CASTING</text> </titlePart> <titlePart> <text>POWDER METALLURGY</text> </titlePart> <titlePart> <text>FOUNDRY MOULDING</text> <entryReference>moulding refractory materials in general <sref ref="B28B"/></entryReference> </titlePart> This subclass covers: the making of moulds for casting metals or of other refractory moulds; selection or preparation of materials therefor; the necessary patterns, processes, machines, accessory devices or tools. PATTERNS, MANUFACTURE THEREOF , MOULDS, CORES, GENERAL MOULDING PROCESSES; COMPOSITIONS FOR MOULDS AND CORES ; , MOULDING MACHINES, PROCESSES INVOLVING THESE MACHINES MOULDING PLANTS TOOLS OR OTHER DEVICES , , <titlePart> <text>CASTING OF METALS</text> </titlePart> <titlePart> <text>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</text> <entryReference>shaping of plastics or substances in a plastic state <sref ref="B29C"/></entryReference> <entryReference>metallurgical processing, selection of substances to be added to metal <sref ref="C21"/>, <sref ref="C22"/></entryReference> </titlePart> In this subclass, any material to be cast is referred to as metal. PRELIMINARY TREATMENTS INDICATING OR MEASURING GENERAL CASTING PROCESSES; EQUIPMENT THEREFOR Centrifugal casting Pressure die casting or injection die casting Pressure casting, vacuum casting Other processes , CASTING CHARACTERISED BY THE PRODUCTS Pig casting , Ingot casting , Continuous casting Casting in, on, or around objects Casting for other specified purposes CASTING PARTICULAR METALS AFTER-TREATMENTS Of non-solidified metal Removing from moulds Cooling Cutting-off surplus material OTHER EQUIPMENT For handling, for supplying , , , , , For cleaning For other purposes CONTROLLING OR SUPERVISING CASTING PLANTS <titlePart> <text>WORKING METALLIC POWDER</text> </titlePart> <titlePart> <text>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</text> </titlePart> <titlePart> <text>MAKING METALLIC POWDER</text> <entryReference>processes or devices for granulating materials in general <sref ref="B01J0002000000"/></entryReference> <entryReference>making ceramics by compacting or sintering <sref ref="C04B"/>, e.g. <sref ref="C04B0035640000"/></entryReference> <entryReference>for the production of metals as such, <u>see</u> class <sref ref="C22"/></entryReference> <entryReference>reduction or decomposition of metal compounds in general <sref ref="C22B"/></entryReference> <entryReference>making alloys by powder metallurgy <sref ref="C22C"/></entryReference> <entryReference>electrolytic production of metal powder <sref ref="C25C0005000000"/></entryReference> </titlePart> This subclass covers the making of metallic powder only insofar as powder with specific physical characteristics is made. In this subclass, the following terms or expressions are used with the meanings indicated: "metallic powder" covers powders containing a substantial proportion of non-metallic material; "powder" includes somewhat larger particles which are worked, obtained or behave in a manner similar to powder, e.g. fibres.