C23C8/44 - CPC Classification Index

ClassID:

119936 ⎘

C23C8/44 - CPC Classification

Classification description:

Solid state diffusion of only non-metal elements into metallic material surfaces ; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied Carburising

Sub-classes:

C23C8/46 » of ferrous surfaces 13

Recent Application in this class:

20220018010

Method for increasing magnetic induction intensity of soft magnetic metallic materials

20170298495

System and method for surface hardening of refractory metals

20170253949

Al alloy containing Cu and C and its manufacturing method

20170044654

Method and device of surface-treating a metallic part

20150107719

PARTIAL HEAT-TREATMENT METHOD USING DOUBLE METAL LAYER

20150056427

Removable mask for coating a substrate

20120088185

Titanium-based material, method of manufacturing titanium-based material, and fuel cell separator

20120085465

Carburized component and manufacturing method

20080152944

System and method for surface hardening of refractory metals

20080041497

Carburized Wire and Method for Producing the Same

20060086430

Carburized wire and method for producing the same