- 聊城民辉钢管有限公司
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研究了带芯棒的GCr15轴承钢管的双向剪切方法,尤其是首次压下量对剪切品质的影响;轴承钢是生产轴承滚动体和套圈的钢种,常用钢种为GCr15。本钢采用中方坯(235 mm×265 mm)生产的轴承钢在使用过程中出现了内部裂口,该裂口平直、通长。因为产生轴承钢管内部裂口的原因很多,所以对产品出厂检验结果进行检查,全部符合GB/T18254要求。然后将钢管垂直于裂口处沿纵向割开,用金相、电镜对裂口和基体分析,找出了轴承钢内部裂口产生的原因为在冷拔过程中机械划伤所致。 对实验结果进行了分析,并在此基础上,对双向剪切法进行了改进,得到了较好的断面品质。轴承钢管是轴承钢二火成材产品,作为轴承套圈用钢,其生产有其特殊性和严格要求。由于国家整体冶炼水平及生产企业自身存在的问题和轴承套圈加工技术的发展,轴承钢管在质量,生产成本,材料利用率等方面优势不明显,其发展空间受到挤压。
钢管英寸对照表(1/8”-1 1/2”)外径壁厚重量英寸毫米单位毫米英寸公斤/米磅/英尺1/8”10.310S1.240.0490.280.191/8”10.3STD-401.730.0680.370.251/8”10.3XS-802.410.0950.480.321/4”13.710S1.650.0650.50.341/4”13.7STD-402.240.0880.640.431/4”13.7XS-803.020.1190.810.553/8”17.110S1.650.0650.640.433/8”17.1STD-402.310.0910.850.573/8”17.1XS-803.20.1261.110.751/2”21.35S1.050.0420.530.361/2”21.310S2.110.0831.010.681/2”21.3STD-402.770.1091.280.861/2”21.3XS-803.730.1471.631.11/2”21.31604.780.1881.971.331/2”21.3XXS7.470.2942.571.733/4”26.75S1.650.0651.030.693/4”26.710S2.110.0831.290.873/4”26.7STD-402.870.1131.71.143/4”26.7XS-803.910.1542.221.493/4”26.71605.560.2192.931.973/4”26.7XXS7.820.3083.682.481”33.45S1.650.0651.310.881”33.410S2.770.1092.121.421”33.4STD-403.380.1332.531.71”33.4XS-804.550.1793.272.181”33.41606.350.254.282.881”33.4XXS9.090.3585.513.711 1/4”42.25S1.650.0651.671.121 1/4”42.210S2.770.1092.721.831 1/4”42.2STD-403.560.143.432.311 1/4”42.2XS-804.850.1914.513.031 1/4”42.21606.350.255.673.811 1/4”42.2XXS9.70.3827.855.281 1/2”48.35S1.650.0651.921.291 1/2”48.310S2.770.1093.142.111 1/2”48.3STD-403.680.1454.092.751 1/2”48.3XS-805.080.25.473.681 1/2”48.31607.140.2817.324.92钢管英寸对照表|钢管理论重量(2”-3 1/2”)外径壁厚重量英寸毫米单位毫米英寸公斤/米磅/英尺2”60.35S1.650.0652.411.622”60.3 2.110.0833.062.062”60.310S2.770.1093.972.672”60.3 3.180.1254.523.042”60.3STD-403.910.1545.493.692”60.3XS-805.540.2187.565.082”60.31608.740.34411.237.552”60.3XXS11.070.43613.589.132 1/2”735S2.110.0833.732.512 1/2”7310S3.050.125.323.572 1/2”73304.780.1888.125.462 1/2”73STD-405.160.2038.725.862 1/2”73XS-807.010.27611.527.742 1/2”731609.530.37515.0810.142 1/2”73XXS14.020.55220.613.843”88.95S2.110.0834.563.073”88.9 2.770.1095.9543”88.910S3.050.126.524.383”88.9 3.180.1256.794.563”88.9 3.580.1417.615.123”88.9 3.960.1568.385.633”88.9STD-405.490.21611.417.673”88.9XS-807.620.315.4310.373”88.916011.130.43821.5614.493”88.9XXS15.240.627.9618.793 1/2”101.65S2.110.0835.233.523 1/2”101.610S3.050.127.495.033 1/2”101.6304.780.18811.537.753 1/2”101.6STD-405.740.22613.719.213 1/2”101.6XS-808.080.31818.8312.651/8”10.310S1.240.0490.280.191/8”10.3STD-401.730.0680.370.251/8”10.3XS-802.410.0950.480.321/4”13.710S1.650.0650.50.341/4”13.7STD-402.240.0880.640.431/4”13.7XS-803.020.1190.810.553/8”17.110S1.650.0650.640.433/8”17.1STD-402.310.0910.850.573/8”17.1XS-803.20.1261.110.751/2”21.35S1.050.0420.530.361/2”21.310S2.110.0831.010.681/2”21.3STD-402.770.1091.280.861/2”21.3XS-803.730.1471.631.11/2”21.31604.780.1881.971.331/2”21.3XXS7.470.2942.571.733/4”26.75S1.650.0651.030.693/4”26.710S2.110.0831.290.873/4”26.7STD-402.870.1131.71.143/4”26.7XS-803.910.1542.221.493/4”26.71605.560.2192.931.973/4”26.7XXS7.820.3083.682.481”33.45S1.650.0651.310.881”33.410S2.770.1092.121.421”33.4STD-403.380.1332.531.71”33.4XS-804.550.1793.272.181”33.41606.350.254.282.881”33.4XXS9.090.3585.513.711 1/4”42.25S1.650.0651.671.121 1/4”42.210S2.770.1092.721.831 1/4”42.2STD-403.560.143.432.311 1/4”42.2XS-804.850.1914.513.03 1 1/4”42.21606.350.255.673.811 1/4”42.2XXS9.70.3827.855.281 1/2”48.35S1.650.0651.921.291 1/2”48.310S2.770.1093.142.111 1/2”48.3STD-403.680.1454.092.751 1/2”48.3XS-805.080.25.473.681 1/2”48.31607.140.2817.324.921 1/2”48.3XXS10.150.49.656.492”60.35S1.650.0652.411.622”60.3 2.110.0833.062.062”60.310S2.770.1093.972.672”60.3 3.180.1254.523.042”60.3STD-403.910.1545.493.692”60.3XS-805.540.2187.565.082”60.31608.740.34411.237.552”60.3XXS11.070.43613.589.132 1/2”735S2.110.0833.732.512 1/2”7310S3.050.125.323.572 1/2”73304.780.1888.125.462 1/2”73STD-405.160.2038.725.862 1/2”73XS-807.010.27611.527.742 1/2”731609.530.37515.0810.142 1/2”73XXS14.020.55220.613.843”88.95S2.110.0834.563.073”88.9 2.770.1095.9543”88.910S3.050.126.524.383”88.9 3.180.1256.794.563”88.9 3.580.1417.615.123”88.9 3.960.1568.385.633”88.9STD-405.490.21611.417.673”88.9XS-807.620.315.4310.373”88.916011.130.43821.5614.493”88.9XXS15.240.627.9618.793 1/2”101.65S2.110.0835.233.52 3 1/2”101.610S3.050.127.495.033 1/2”101.6304.780.18811.537.753 1/2”101.6STD-405.740.22613.719.213 1/2”101.6XS-808.080.31818.8312.654”114.35S2.110.0835.93.974”114.310S3.050.128.465.684”114.3 3.180.1258.815.924”114.3 3.960.15610.897.324”114.3 4.370.17211.978.054”114.3 4.780.18813.048.764”114.3 5.160.20314.039.434”114.3 5.560.21915.0610.624”114.3STD-406.020.23716.2410.914”114.3 6.350.2517.0811.484”114.3 7.140.28119.0612.814”114.3 7.920.31220.9914.114”114.3XS-808.560.33722.5515.154”114.312011.130.43828.6119.234”114.316013.490.53133.8822.774”114.3XXS17.120.67441.4527.855”141.3 3.960.15613.559.115”141.3 4.780.18816.2610.935”141.3 5.560.21918.812.635”141.3STD-406.550.25821.9914.785”141.3 7.140.28123.8616.045”141.3 7.920.31226.3217.695”141.3XS-809.530.37531.2821.025”141.312012.70.540.6927.345”141.316015.880.62549.6233.345”141.3XXS19.050.7558.0138.986”168.3 4.370.17217.8411.996”168.3 4.780.18819.4713.096”168.3 5.160.20320.9714.096”168.3 5.560.21922.5415.15 6”168.3 6.350.2525.6217.226”168.3STD-407.110.2828.5519.196”168.3 7.920.31231.6421.266”168.3 8.740.34434.7423.356”168.3 9.530.37537.6925.336”168.3XS-8010.970.43242.9928.896”168.3 12.70.549.2333.086”168.312014.270.56254.7536.796”168.3 15.880.62560.340.526”168.316018.260.71968.2545.866”168.3 19.050.7570.8547.616”168.3XXS21.950.86480.0253.776”168.3 22.230.87580.8754.348”219.1 4.780.18825.5217.158”219.1 5.160.20327.518.488”219.1 5.560.21929.5819.888”219.1206.350.2533.6522.618”219.1307.040.27737.1924.998”219.1 7.920.31241.66288”219.1STD-408.180.32242.9828.888”219.1 8.740.34445.830.788”219.1 9.530.37549.7533.438”219.16010.310.40653.6236.038”219.1 11.130.43857.6638.758”219.1XS-8012.70.565.343.888”219.1 14.270.56272.8148.938”219.110015.090.59476.6951.538”219.1 15.880.62580.3154.028”219.112018.260.71991.3661.398”219.1 19.050.7594.9363.798”219.114020.620.812101.9568.518”219.1XXS22.230.875108.9673.228”219.116023.010.906112.475.598”219.1 25.41122.5682.36 10”273 4.780.18831.9421.4610”273 5.160.20334.4323.1410”273 5.560.21937.0424.8910”273206.350.2542.1828.3410”273 7.090.27946.9731.5610”273
