Open AccessTHE FACTORS INFLUENCING QUALITY OF STRUCTURE OF WORKPIECES PROCESSED ON THE VACUUM LINE «MODULTHERM 7/1»
Author(s) -
Sergei Rudenko,
A. L. Valko,
А. Н. Чичин
Publication year - 2017
Publication title -
litʹë i metallurgiâ
Language(s) - English
Resource type - Journals
eISSN - 2414-0406
pISSN - 1683-6065
DOI - 10.21122/1683-6065-2017-2-58-64
Subject(s) - austenite , hardening (computing) , materials science , metallurgy , vacuum arc , martensite , core (optical fiber) , line (geometry) , case hardening , mechanical engineering , composite material , engineering , microstructure , hardness , electrical engineering , cathode , layer (electronics) , geometry , mathematics
Results of metallographical observations of structural constituent of carburized cases and a core of gears after thermochemical treatment on a vacuum line «ModulTherm 7/1» made by corporation «ALD Vacuum Technologies GmbH» are given. It was established that the cause of formation of non martensitic transformations of austenite in carburized cases and in a core of workpieces is insufficient cooling capacity of the hardening module of a vacuum line «ModulTherm 7/1».