IPC 6 English version
 
C22K-C22K00300

SECTION C– CHEMISTRY; METALLURGY


C 22METALLURGY (of iron C 21); FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS (general methods or devices for heat treatment of ferrous or non-ferrous metals or alloys C 21 D; production of metals by electrolysis or electrophoresis C 25)


C 22 KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES C 21 D, C 22 C OR C 22 F, RELATING TO CHANGING THE PHYSICAL CHARACTERISTICS OF ALLOYS [6]


 Notes

(1)This subclass constitutes an indexing scheme associated with subclasses C 21 D, C 22 C or C 22 F. The indexing codes should be unlinked. [6]

(2)Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code. [6]


1:

00Changing the physical structure of alloys resulting in shape memory effect; Processes for stabilising or changing such effect; Alloys having shape memory characteristics [6]


3:

00Changing the physical structure of alloys resulting in superplasticity; Processes for stabilising or changing such effect; Alloys having superplasticity characteristics [6]