caa a22 4500 46792449X CHVBK 20180406152926.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/BF03165185 doi (NATIONALLICENCE)springer-10.1007/BF03165185 The use of a new type of large vacuum batch furnace for the heat treatment of moulds and dies [Elektronische Daten] [Th. Wingens, B. Edenhofer, O. Irretier] Anwendung eines neuartigen Groß-Vakuumofens für die Wärmebehandlung von Formen und Werkzeugen The primary focus in vacuum heat treating of dies for the die casting industry is to reduce distortion, while obtaining a smooth surface finish with no post cleaning needed and easy process control. A slower gas quenching reduces distortion, but special larger dies show grain boundary precipitation with the consequence of a shorter die life. — With the increased use of high-pressure gas quenching and faster quench rates for moulds and dies, the quality of heat treatment has improved significantly over the last ten years. With quicker quench rates, distortion and post machining increased which, however, was accepted in return for the improvement in lifetime despite an increased risk of quench cracking. This paper discusses the vacuum heat treating of moulds and dies (over 5 metric tons) in the newly developed Super TurboTM vacuum furnace with 15·105 Pa nitrogen gas quench combined with directional cooling. Springer, 2006 Wingens Th Ipsen International GmbH, Flutstraße 78, 47533, Kleve, Deutschland aut Edenhofer B. Ipsen International GmbH, Flutstraße 78, 47533, Kleve, Deutschland aut Irretier O. Ipsen International GmbH, Flutstraße 78, 47533, Kleve, Deutschland aut BHM Berg- und Hüttenmännische Monatshefte Springer-Verlag 151/3(2006-03-01), 123-127 0005-8912 151:3<123 2006 151 501 https://doi.org/10.1007/BF03165185 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF03165185 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wingens Th Ipsen International GmbH, Flutstraße 78, 47533, Kleve, Deutschland aut NATIONALLICENCE 700 1- Edenhofer B. Ipsen International GmbH, Flutstraße 78, 47533, Kleve, Deutschland aut NATIONALLICENCE 700 1- Irretier O. Ipsen International GmbH, Flutstraße 78, 47533, Kleve, Deutschland aut NATIONALLICENCE 773 0- BHM Berg- und Hüttenmännische Monatshefte Springer-Verlag 151/3(2006-03-01), 123-127 0005-8912 151:3<123 2006 151 501 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer