SPC-1919

1STATISTICALPROCESSCONTROL2STATISTICALPROCESSCONTROL3STATISTICALPROCESSCONTROL4STATISTICALPROCESSCONTROL5STATISTICALPROCESSCONTROL6STATISTICALPROCESSCONTROL7STATISTICALPROCESSCONTROL8STATISTICALPROCESSCONTROL9STATISTICALPROCESSCONTROL10STATISTICALPROCESSCONTROL11STATISTICALPROCESSCONTROL12STATISTICALPROCESSCONTROL正态分布示意图13STATISTICALPROCESSCONTROL0510152025123456789101112下限0中心6上限13024681012上限13中心6下限014STATISTICALPROCESSCONTROL15STATISTICALPROCESSCONTROL16STATISTICALPROCESSCONTROL169676869672697169696737068666871473666972685706970696970.268.268.469.468.445444上/7下/7上/8下/8上/9样品数量平均值极差日期17STATISTICALPROCESSCONTROL65697302468X-图R-图18STATISTICALPROCESSCONTROL19STATISTICALPROCESSCONTROL20STATISTICALPROCESSCONTROLn2345678910D43.272.572.282.1121.921.861.821.78D3*****0.080.140.180.22A21.881.020.730.580.480.420.370.340.3121STATISTICALPROCESSCONTROL22STATISTICALPROCESSCONTROL656973656973点超出控制限连续7点在中心线同侧23STATISTICALPROCESSCONTROL656973656973连续7点上升或下降波动过大24STATISTICALPROCESSCONTROL656973656973层状连续14点中12点在中心线同侧25STATISTICALPROCESSCONTROL656973656973层状连续11点中10点在中心线同侧26STATISTICALPROCESSCONTROLCpk必须满足1.33min27STATISTICALPROCESSCONTROLCmk必须满足1.67min28STATISTICALPROCESSCONTROL29STATISTICALPROCESSCONTROL序号缺陷名称频数累积数累积率%1234567合计右前门/右前柱橡胶密封圈漏装安全带螺母松动右后门内饰板没压服举升门窗密封条没压服左后门缓撞块掉举升门撞锁犯卡其它294189403128202863029448352355458260263046.776.7838892.495.610030STATISTICALPROCESSCONTROL31STATISTICALPROCESSCONTROL序号不合格情况描述不合格数量累计不合格数量累计不合格率备注1323228.83%2255751.35%3207769.37%4169383.78%51210594.59%66111100.00%051015202530351234560.00%10.00%20.00%30.00%40.00%50.00%60.00%70.00%80.00%90.00%100.00%