Study on X60 Micro Alloy Steel'S Solidification Characteristics Based on Linea Contraction-thermal Stress Measuring

摘要

Based on the difficult technical defect, measuring the amount of solidification shrinkage and the stress, we use the linear contraction-thermal stress In situ measurement equipment, designed independently by shanghai university, to study the solidification characteristics, such as linear contraction, thermal stress, thermal cracking, of X60 steel. Acquiring and disposing the temperature, stress and shrinkage simultaneously in solidification process, depicting correlation curves, are suit for further study on X60 steel solidification characteristics. This paper mainly discussed the methods of design and analyses, given the results we got and analyzed during the study. The linear contraction-thermal stress in situ al device captures the stress and shrinkage of X60 steel during the solidification process accurately. Both stress and shrinkage have a high consistency with the temperature curve. The amount of shrinkage is 0.96% and the shrinkage stress is 28Mpa after the whole process.