Effect of Super Pig Iron on Creeping Process for RuT300 Vermicular Graphite Cast Iron
2015; China Shipbuilding Industry Corporation; Linguagem: Inglês
ISSN
1001-3814
Autores Tópico(s)Metallurgy and Material Forming
ResumoThe melting process of vermicular graphite cast iron RuT300 in medium frequency induction furnace of 12 kg with super pig iron was discussed. Using FeSiMg5RE5 alloy as vermicular agent, Si-Ba alloy as inoculants and the pit method of vermicularizing treatment process, the effects of process parameters such as the addition of vermicular agent on the vermicularizing rate were studied. Best smelting process in experiment is as follows, the tapping temperature is(1560±10) ℃,the addition of FeSiMg5RE5 is 0.45%, and the vermicularization time is(30±2) s. The vermicularizing rate reaches 95%, the tensile strength is 330 MPa, and the elongation is 3.0%.
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