Abstract
The causes of type A, C' and D deflections in five basic deflections which are observed in the heat indication test of steam turbine shafts were clarified experimentally, using a model apparatus of heat indication test shown in the 1st reports. These types of deflection have their origin in the asymmetric thermal emissivity of rotor surface, which includes the following items : (1) Dust or contamination due to cutting oil, mud, paint and others in manufacturing processes of rotors. (2) Conditions of scale before the test, of growth of scale and de-scaling during the test. (3) Roughness along the rotor surface (considering the vibration mark of cutting tool). There two kinds of asymmetry of surface thermal blackness, one is improved and the other one is hardly improved by short-time tempering or by heating during the test. It is found that type A, C' and D deflections have no difference in the cause of occurrence only excepting their stage of appearence during the test.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Transactions of the Japan Society of Mechanical Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
