B
SECTION B — PERFORMING OPERATIONS
  
SHAPING
 B22
CASTING; POWDER METALLURGY
 B22F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; OBTAINING METALLIC POWDER, NOT OTHERWISE PROVIDED FOR (processes or apparatus for obtaining metallic powder, covered by a single other sub-class, see the relevant sub-class, e.g. obtaining by spraying molten metal B22D 23/08; moulding articles from wood particles B29J; making ceramics by compacting or sintering C04B, e.g. C04B 35/64; making alloys by compacting or sintering C22C 1/04, C22C 33/02)
 B22F

Note(s)

  1. The term "metallic powder" is to be understood as covering powders containing a substantial proportion of non-metallic material.
  2. The term "powder" is not intended to exclude somewhat larger particles which or behave in a way similar.
 B22F 1/00
Special treatment of metallic powder before working, e.g. to facilitate the operation; Metallic powders per se, e.g. mixtures of particles of different composition (C04, C08 take precedence)
 B22F 1/02
·  comprising coating of the powder (B22F 1/04 takes precedence)  [2]
 B22F 1/04
·  comprising crushing of particles, of agglomerated masses of particles or of other masses, to prepare particles for further working (crushing in general B02C)  [2]
 B22F 3/00
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
 B22F 3/02
·  Compacting only
 B22F 3/04
·  ·  by applying fluid pressure
 B22F 3/06
·  ·  by centrifugal forces
 B22F 3/08
·  ·  by explosive forces
 B22F 3/10
·  Sintering only, e.g. making porous workpieces
 B22F 3/12
·  Both compacting and sintering
 B22F 3/14
·  ·  simultaneously
 B22F 3/16
·  ·  in successive or repeated steps
 B22F 3/18
·  for producing sheet material by making use of pressure rollers
 B22F 3/20
·  for producing extruded rod stock
 B22F 3/22
·  for producing castings from a slip
 B22F 3/24
·  After-treatment of workpieces or articles
 B22F 3/26
·  ·  Impregnating
 B22F 5/00
Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
 B22F 5/02
·  of piston rings
 B22F 5/04
·  of turbine blades
 B22F 5/06
·  of threaded articles, e.g. nuts
 B22F 5/08
·  of toothed articles, e.g. gear wheels; of cam discs
 B22F 7/00
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
 B22F 7/02
·  of composite layers
 B22F 7/04
·  ·  with one or more layers not made from powder, e.g. made from solid metal
 B22F 7/06
·  of composite workpieces or articles from parts, e.g. to form tipped tools
 B22F 7/08
·  ·  with one or more parts not made from powder
 B22F 9/00
Making metallic powder by methods not otherwise provided for