Thermal analysis method for metamorphic effect of vermicular graphite cast iron

• Main Authors: BAI YUXUAN, LI JIANXIONG, CHEN RUOYU, YE HAN, ZHU FUSHENG, LI SHILIN, LIU XINYU, SUN ZHAOTING, YANG MINGHAO
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a thermal analysis method for the metamorphic effect of vermicular graphite cast iron, which comprises the following steps of: in the production process of the vermicular graphite cast iron, sampling metamorphic iron liquid, putting the metamorphic iron liquid into a cylindrical sample cup, and collecting a thermal analysis cooling curve; extracting characteristic values of the thermal analysis cooling curve, and inputting the characteristic values into the vermicularizing rate calculation model and the residual Mg content calculation model to obtain vermicularizing rate data and residual Mg content data; and comparing the vermicularizing rate data and the residual Mg content data with a preset data threshold value, and evaluating the metamorphism effect of the metamorphic iron liquid based on a comparison result. According to the method, the vermicularizing rate calculation model and the residual Mg content calculation model are used for calculating the vermicularizing rate data and th