图2-4-66...[继续阅读]

    图2-4-67...[继续阅读]

    图2-4-68图2-4-69图2-4-70图2-4-71图2-4-72图2-4-73图2-4-74图2-4-75图2-4-76图2-4-77图2-4-78图2-4-79图2-4-80图2-4-81图2-4-82图2-4-83表2-4-6钢号成分,%条件图号CSiMnPSAlCrNiVMoTTATTA-GS150.130.320.480.010.0240.006　　　　连续加热图2-4-68图2-4-84300.310.0290.520.0230.0230.0...[继续阅读]

    表2-4-6钢号成分,%条件图号CSiMnPSAlCrNiVMoTTATTA-GS150.130.320.480.010.0240.006　　　　连续加热图2-4-68图2-4-84300.310.0290.520.0230.0230.0050.130.060.01　连续加热图2-4-69图2-4-85450.490.260.740.0050.0180.0140.16　0.01　连续加热图2-4-70图2-4-86500.510.740.530.0160.029...[继续阅读]

    1)t>Ac3时,钢组织为奥氏体(A),在此温度条件热送时不产生组织应变裂纹。2)t=Ac1～Ac3时,钢析出铁素体(F)。3)t<Ac1时,在空冷、圆棒直径d为15mm、棒中心冷却到580℃的条件下(见图中x点),钢组织有50%铁素体和50%珠光体;若d>15mm,将得到组...[继续阅读]

    表2-4-7钢号图号钢号图号钢号图号钢号图号4005F08F1015Y152025303540455055图2-4-100图2-4-101图2-4-102图2-4-103图2-4-104图2-4-105图2-4-106图2-4-107图2-4-108图2-4-109图2-4-110图2-4-111图2-4-112图2-4-11360707579T10T1212CrMo1Cr5Mo15Ni15Mn20CrMn20CrMo20CrNiMo20Mn图2-4-114图2-4...[继续阅读]

    A硬度与强度之间的经验公式(表2-4-8)B疲劳强度与静强度之间的经验公式(表2-4-9)C许可剪应力与抗拉强度之间的关系[17](表2-4-10)D硬度之间的换算公式当HB=200～600范围内时:HRC≈1/10HBHB<450时:HB≈HV,HS=1/6HB表2-4-8合金种类经验公式备注未淬...[继续阅读]

    表2-4-11硬度抗拉强度,MPa洛氏表面洛氏维氏布氏碳钢铬钢铬钒钢铬镍钢铬钼钢铬镍钼钢铬锰硅钢超高强度钢不锈钢不分钢种HRCHRAHR15NHR30NHR45NHVHB30D2d102d54d2.5mm70.069.569.068.568.067.567.066.566.065.586.686.386.185.885.585.285.084.784.484.1　　　1037101799...[继续阅读]

    表2-4-12硬度抗拉强度MPa洛氏表面洛氏维氏布氏HRBHR15THR30THR45THVHB10D2d102d54d2.5mm100.099.599.098.598.097.597.096.596.095.595.094.594.093.593.092.592.091.591.090.590.089.589.088.588.087.587.086.586.085.585.084.584.091.591.391.291.190.990.890.690.590.490.290.189.989.889.78...[继续阅读]

    表2-4-13HRCHBσbMPaσsMPaδ,%ψ,%αK(20℃)AK,J141618202224262830323436384042197207217223235248262277293311321341363379401637.4～706.0672.7～740.4706.0～784.5725.6～804.1766.8～853.1809.0～902.2848.2～946.3902.2～1000.2946.3～1059.01000.2～1122.81034.5～1166.91098.3～1235.61...[继续阅读]