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9XC鋼工具的等溫淬火(無變形淬火)

    摘要
  • 摘要: 以金相方法測定9XC鋼的M點及下石氏體(貝茵體)轉變的開始曲線.以磁性方法測定9XC鋼在不同情況下奧氏體的穩定化作用.測定了殘余奧氏體含量和9XC絲錐的變形量之間的關系.以φ24X2毫米銑牙絲錐進行工廠實際試驗的結果證明,先淬火至160°停留1—3分鐘,然后升至240°等溫停留10分鐘的新工藝方案,和在170°等溫停留45分鐘的工藝方案相比較,能縮短等溫時間至1/4,其淬火后工件節徑的變形量從0.11%減至0.06%(平均值).

     

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