Patent · US Expired

Heat treatment of materials

US4850576A · kind A · utility

3Cited by

4References

2Claims

0Family size

Assignee

Arthur Pfeiffer Vakummtechnik Wetzlar GmbH · US

Inventors

Robert Hack · Biebertal, DE
Ralf Peter · Haiger, DE
Wilhelm Polhede · Bruchköbel, DE

Key dates

Filing date	Jun 18, 1987
Grant date	Jul 25, 1989
Priority date	—
Expiry date	Jun 18, 2007

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D1/0033
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

In an installation for the vacuum heat treatment and subsequent hot isostatic redensification of materials comprising a work space inside a container, heating unit, work-space insulation and an outer chamber with a vacuum connection and a pressure-gas connection, insulation is also provided at the interior of the chamber wall. The chamber is water-cooled.

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