C
SECTION C — CHEMISTRY AND METALLURGY
METALLURGY
C22
METALLURGY
(of iron
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C21
)
;
FERROUS OR NON-FERROUS ALLOYS
;
TREATMENT OF ALLOYS OR NON-FERROUS METALS
(production of metals by electrolysis or electrophoresis
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C25
)
C22F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
C22F 1/00
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
(apparatus for mechanical working of metal
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B21
,
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B23
,
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B24
, e.g. shot-peening apparatus
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B24C
)
C22F 1/02
·
in inert or controlled atmosphere or vacuum
(adjusting the composition of the atmosphere
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C21D 1/76
)
C22F 1/04
·
of aluminium or alloys based thereon
C22F 1/06
·
of magnesium or alloys based thereon
C22F 1/08
·
of copper or alloys based thereon
C22F 1/10
·
of nickel or cobalt or alloys based thereon
C22F 1/11
·
of chromium or alloys based thereon
C22F 1/12
·
of lead or alloys based thereon
C22F 1/14
·
of noble metals or alloys based thereon
C22F 1/16
·
of other metals or alloys based thereon
C22F 1/18
· ·
high-melting or refractory metals or alloys based thereon
C22F 3/00
Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
C22F 3/02
·
by solidifying a melt controlled by supersonic waves or electric or magnetic fields