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Microstructure analysis of nodular cast iron

OM Observation The metallographic sample is made by standard metallographic technology. The concrete methods are: grinding the observation surface on the sandpaper of different sizes one by one → polishing the observation surface to no scratch → flushing and drying the surface with anhydrous alcohol → corrosion surface of...

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Melting process control of ductile iron

Temperature test of molten iron Ya1-w330 portable melting thermometer is used to measure the molten iron temperature in the process of electric furnace melting, and strictly control the temperature of molten iron out of furnace, spheroidizing temperature and pouring temperature. During the test, zero the thermometer first, and then...

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