Process and apparatus for thermochemically hardening workpieces

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United States of America Patent

PATENT NO 10626490
APP PUB NO 20160053359A1
SERIAL NO

14783969

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Abstract

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A process and apparatus for thermochemically hardening workpieces is provided incorporating the following steps, carried out in a variable sequence: one or more carburizing steps, each in a carbon-containing gas atmosphere at a pressure of less than 50 mbar, the workpieces being held at temperatures of 900 to 1050° C.; if appropriate, one or more diffusion steps, each in a gas atmosphere at a pressure of less than 100 mbar; and one or more nitriding steps, each in a nitrogen-containing discharge plasma at a pressure of less than 50 mbar, the workpieces being held at temperatures of 800 to 1050° C.

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Patent Owner(s)

Patent OwnerAddress
ALD VACUUM TECHNOLOGIES GMBHOTTO-VON-GUERICKE-PLATZ 1 HANAU 63457

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heuer, Volker Frankfurt, DE 9 27
Löser, Klaus Mainhausen, DE 2 16

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