Patent · US Active

Method and device for hardening workpieces, and workpieces hardened according to the method

US10196730B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

ALD VACUUM TECHNOLOGIES GMBH · DE

Inventors

Volker Heuer · Frankfurt am Main, DE
Klaus Loser · Seligenstadt, DE
Gunther Schmitt · Hammelburg, DE
Gerhard Welzig · Darmstadt, DE

Key dates

Filing date	Dec 9, 2016
Grant date	Feb 5, 2019
Priority date	—
Expiry date	Dec 24, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C8/80
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a method and device for thermally treating workpieces, the device including a cooling chamber and two or more carburizing or heating chambers in which the workpieces are heated to a temperature of 950 to 1200° C. by means of radiation, such as direct heat radiation from a heating device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.