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Volume 6 Issue 4
Aug.  2021
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Xiao Kefu, Zhou Mianzhang. MEDIUM FREQUENCY INDUCTION HEATING QUENCHING TECHNOLOGY FOR POWDER HOT-FORGED SEALING RING[J]. Powder Metallurgy Technology, 1988, 6(4): 223-224.
Citation: Xiao Kefu, Zhou Mianzhang. MEDIUM FREQUENCY INDUCTION HEATING QUENCHING TECHNOLOGY FOR POWDER HOT-FORGED SEALING RING[J]. Powder Metallurgy Technology, 1988, 6(4): 223-224.
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MEDIUM FREQUENCY INDUCTION HEATING QUENCHING TECHNOLOGY FOR POWDER HOT-FORGED SEALING RING

  • Yiyang Powder Metallurgy Research Institute, Hunan

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  • Available Online: August 23, 2021
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  • Medium frequency induction heating quenching process with a current frequency of 2500Hz which was used to quench thin ring shape iron-based powder hot-forged sealing ring is described. Inductor is of multiple-winding helix tube shape by using sequential heating procedure. Productivity of this guenching process was higher than that of original salt bath quenching by 1. 2 times,pass ratio of hardness was increased from 95.7% to 99.5%, especially the crack and deformation of workpieces were decreased.meanwhile power was saved by 57%.
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