|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

SHAPING

|  | B22 |
CASTING; POWDER METALLURGY

|  | B22C |
FOUNDRY MOULDING (moulding refractory materials in general Fulltext... Hierarchy... Expanded...B28B)

|  | B22C |
Note(s) 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.

|  | B22D |
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state Fulltext... Hierarchy... Expanded...B29C; metallurgical processing, selection of substances to be added to metal Fulltext... Hierarchy... Expanded...C21, Fulltext... Hierarchy... Expanded...C22)

|  | B22D |
Note(s) In this subclass, any material to be cast is referred to as metal.

|  | B22F |
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (processes or devices for granulating materials in general Fulltext... Hierarchy... Expanded...B01J 2/00; making ceramics by compacting or sintering Fulltext... Hierarchy... Expanded...C04B, e.g. Fulltext... Hierarchy... Expanded...C04B 35/64; for the production of metals as such, see class Fulltext... Hierarchy... Expanded...C22; reduction or decomposition of metal compounds in general Fulltext... Hierarchy... Expanded...C22B; making alloys by powder metallurgy Fulltext... Hierarchy... Expanded...C22C; electrolytic production of metal powder Fulltext... Hierarchy... Expanded...C25C 5/00)

|  | B22F |
Note(s) 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. The production of metal powder is classified in this subclass insofar as the invention relates to the preparation of powder with specific physical characteristics. [3]