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附录附录 1 钢铁材料感应淬火硬度及硬化层深度钢铁材料感应淬火硬度及硬化层深度表面硬度/HRC水淬油(淬火介质)钢号HRCHVHRCHV硬化层/mm预先热处理354045505535Cr40Cr45Cr40MnB35CrMo42CrMo球墨铸铁4050455850635563586345555060556350604555556350603775094366645097955997956647954365995097135997955097134365995997955097133545405045555060536340504555506045554050506045553294363775094365995097135617953775094365995097134365993775095097134365991.02.51.03.01.53.52.04.02.55.55.06.06.56.08.05.012调质或正火调质或正火调质或正火调质或正火调质或正火调质调质调质调质调质调质退火或直淬注 水淬用于销、轴等形状简单的零件。油淬(或淬火介质)用于齿轮、花键轴等形状复杂的零件。球墨铸铁为珠光体型球墨铸铁。附录附录 2 2 感应淬火零件直径和硬化层深度与电流频率的关系感应淬火零件直径和硬化层深度与电流频率的关系电流频率/kHz硬化层深度/mm零件直径/mm1.03.01020-2002000.4-1.36-25好好11-16好好16-25好好好25-51中好中中1.3-2.551中好好差差19-51好好差差50-100好好中2.6-5.1100好中差附录附录 3 3 洛氏洛氏表面洛氏表面洛氏维氏和布氏硬度换算表维氏和布氏硬度换算表硬 度洛 氏表 面 洛 氏维 氏布 氏HRCHRAHR15NHR30NHR45NHVHB30D2d10/mm 2d5/mm 4d2.5/mm 70.086.6103769.586.3101769.086.199768.585.897868.085.595967.585.294167.085.092366.584.790666.084.488965.584.187265.083.992.281.371.785664.583.692.181.071.284064.083.391.980.670.682563.583.191.880.270.181063.082.891.779.869.579562.582.591.579.469.078062.082.291.479.068.476661.582.091.278.667.975261.081.791.078.167.373960.581.490.877.766.872660.081.290.677.366.271359.580.990.476.965.670059.080.690.276.565.168858.580.390.076.164.567658.080.189.875.663.9664 硬 度洛 氏表 面 洛 氏维 氏布 氏HRCHRAHR15NHR30NHR45NHVHB30D2d10/mm 2d5/mm 4d2.5/mm57.579.889.675.263.465357.079.589.474.862.864256.579.389.174.462.263156.079.088.973.961.762055.578.788.673.561.160955.078.588.473.160.559954.578.288.172.659.958954.077.987.972.259.457953.577.787.671.858.857053.077.487.471.358.256152.577.187.170.957.655152.076.986.870.457.154351.576.686.670.056.553451.076.386.369.555.95255012.7350.576.186.069.155.35174942.7550.075.885.768.654.75094882.7749.575.585.568.254.25014812.7949.075.385.267.753.64934742.8148.575.084.967.353.04854682.8348.074.784.666.852.44784612.8547.574.584.366.451.84704552.8747.074.284.065.951.24634492.8946.573.983.765.550.74564422.9146.073.783.565.050.14494362.9345.573.483.264.649.54434302.9545.073.282.964.148.94364242.9744.572.982.663.648.34294182.9944.072.682.363.247.74234133.0143.572.482.062.747.14174073.03 硬 度洛 氏表 面 洛 氏维 氏布 氏HRCHRAHR15NHR30NHR45NHVHB30D2d10/mm 2d5/mm 4d2.5/mm43.072.181.762.346.54114013.0542.571.881.461.845.94053963.0742.071.681.161.345.43993913.0941.571.380.860.944.83933853.1141.071.180.560.444.23883803.1340.570.880.260.043.63823753.1540.070.579.959.543.03773703.1739.570.379.659.042.43723653.1939.070.079.358.641.83673603.2138.579.058.141.23623553.2438.078.757.640.63573503.2637.578.457.240.03523453.2837.078.156.739.43473413.30 硬 度洛 氏表 面 洛 氏维 氏布 氏HRCHRAHR15NHR30NHR45NHVHB30D2d10/mm 2d5/mm 4d2.5/mm36.577.856.238.83423363.3236.077.555.838.23383323.3435.577.255.337.63333273.3735.077.054.837.03293233.3934.576.754.436.53243183.4134.076.453.935.93203143.4333.576.153.435.33163103.4633.075.853.034.73123063.4832.575.552.534.13083023.5032.075.252.033.53042983.5231.574.951.632.93002943.5431.074.751.132.32962913.5630.574.450.631.72922873.5930.074.150.231.12892833.6129.573.849.730.52852803.6329.073.549.229.92812763.6528.573.348.729.32782733.6728.073.048.328.72742693.7027.572.747.828.12712663.7227.072.447.327.52682633.7426.572.246.926.92642603.7626.071.946.426.32612573.7825.571.645.925.72582543.8025.071.445.525.12552513.8324.571.145.024.52522483.8524.070.844.523.92492453.8723.570.644.023.32462423.8923.070.343.622.72432403.9122.570.043.122.12402373.9322.069.842.621.52372343.9521.569.542.221.02342323.9721.069.341.720.42312294.0020.569.041.219.82292274.0220.068.840.719.22262254.0319.568.540.318.62232224.0519.068.339.818.02212204.0718.568.039.317.42182184.0918.067.838.916.82162164.1117.567.638.416.22142144.1317.067.337.915.62112114.15
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