Beiträge

Porosity of sintered tin bronzes

The paper aimed at quantifying effects of change of raw materials used for tin bronzes (Cu-Sn mechanically pre-alloyed powders compared to Cu-Sn pure components mixture), and of thermal and temporal sintering parameters on sintered products porosity; the relation between

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The influence of Sub-Critical Thermochemical Processing on Fatigue Resistance of 42CrMo4 Steel

The influence of Sub-Critical Thermochemical Processing on Fatigue Resistance of 42CrMo4 Steel, Mihai Cojocaru, Leontin Druga, Daniela Dragomir, U.P.B. Sci. Bull., Series B, Vol. 77, Iss. 2, 2015 ISSN 1454 – 2331 The machine parts, fasteners and many other components require

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The Effect of Ce Added to Carburizing Paste on Phase Composition of Carburized Surface Layers

Mihai Cojocaru, Daniela Dragomir, Leontin Druga, Victor Kuncser and Petre Badica, Trans Tech Publications, Switzerland/Advanced Materials Research Vol 1114 (2015) pp 183-189 Investigations on carburized layers phase composition are usually made by optical microscopy, electron

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The mathematical modelling of 21NiCrMo2 low alloy steel carburising in less common carburising media

Dragomir D, Cojocaru M. O, Drugă L.N, International Journal of Microstructure and Materials Properties (IJMMP), vol.9, no.1, 2014, pp.60-70, Publisher Inderscience Publishers The experimental research aimed at mathematical modelling of the carburising process in less common

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Recent Researches in Metallurgical Engineering – From Extraction to Forming

The Estimation of the Quenching Effects After Carburising Using an Empirical Way Based on Jominy Test Results by Mihai Ovidiu Cojocaru, Niculae Popescu and Leontin Drugă In Book: Recent Researches in Metallurgical Engineering - From Extraction to Forming Edited by Mohammad

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Tiefschicht-Aufkohlung

Druga L., Cojocaru M., Dragomir D., Deep case carburizing process, Metal Russia, September 2014, Seiten 32-34 Die Tiefschicht-Aufkohlungsprozesse (2 ... 8 mm) zu optimieren, ist eine große Herausforderung von Standpunkt der Theorie und Praxis aus gesehen - die Gestaltung der

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Heat treatments in Romania

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Härteanlage für die Führungsschienen der Werkzeugmaschinen

● Die Austenitisierung der Führungsschienen erfolgt im Hubbalkenofen, die Versorgung ist mit automatischer Taktzeit vorgesehen, die Führungsschienen bewegen sich Schritt für Schritt und werden in der Schleuse des Hubbalkenofens geführt, wo sie solange stehen werden, bis die

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