Patent · US Active

Quenching process and apparatus for practicing said process

US9617611B2 · kind B2 · utility

1Cited by

3References

39Claims

0Family size

Assignee

Ipsen, Inc. · US

Inventors

Werner Hendrik Grobler · Stuttgart, DE
Bernd Edenhofer · Kleve, DE
Craig A. Moller · Roscoe, US

Key dates

Filing date	Mar 22, 2012
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Jun 23, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D11/005
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process for quenching heat treated metal parts using a liquid quenchant and high pressure is disclosed. In general, the process includes the steps of providing a load of heat treated metal parts in a pressure vessel wherein the load is at an elevated temperature after being heat treated. In a subsequent step, a liquid quenchant is injected into the pressure vessel such that a vapor of the liquid quenchant forms rapidly in the pressure vessel and cools the metal parts. The step of injecting the liquid quenchant into the pressure vessel is continued for a time sufficient to establish a desired peak vapor pressure in the pressure vessel. An apparatus for carrying out the disclosed process is also described.

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