Version: 2024.01
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
C23D | ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS [2023-02] |
C23D 1/00 | Melting or fritting the enamels; Apparatus or furnaces therefor [2013-01] |
C23D 1/02 | . | Granulating the melt; Drying the granules [2013-01] |
Coating with the enamels [2013-01] |
C23D 3/00 | Chemical treatment of the metal surfaces prior to coating [2023-02] |
C23D 5/00 | Coating with enamels or vitreous layers [2023-02] |
C23D 5/005 | . | {by a method specially adapted for coating special objects} [2013-01] |
C23D 5/02 | . | by wet methods [2013-01] |
C23D 5/04 | . | by dry methods [2013-01] |
C23D 5/06 | . | producing designs or letters [2013-01] |
C23D 5/08 | . | Applying enamels non-uniformly over the surface [2013-01] |
| C23D 5/10 | . | {with refractory materials} [2015-10] WARNING
|
C23D 7/00 | Treating the coatings, e.g. drying before burning [2013-01] |
Firing the enamels [2013-01] |
C23D 9/00 | Ovens specially adapted for firing enamels [2013-01] |
C23D 9/02 | . | Non-electric muffle furnaces [2013-01] |
C23D 9/04 | . | Non-electric tunnel ovens [2013-01] |
C23D 9/06 | . | Electric furnaces [2013-01] |
C23D 9/08 | . | Supporting devices for burning-bars [2013-01] |
C23D 9/10 | . | Loading or unloading devices [2013-01] |
C23D 11/00 | Continuous processes; Apparatus therefor [2013-01] |
After-treatment [2013-01] |
C23D 13/00 | After-treatment of the enamelled articles [2013-01] |
C23D 13/02 | . | Removing defects by local re-melting of the enamel; Adjusting the shape [2013-01] |
C23D 15/00 | Joining enamelled articles to other enamelled articles by processes involving an enamelling step [2013-01] |
C23D 17/00 | De-enamelling [2013-01] |