8/129/1210/1211/1212/1213/1214/1215/1216/1217/1218/1219/1220/1221/1222/1213/1224/1225/1226/1227/1228//1229/1230/1231/121/011234567891011121314151617181920212223242550050050050050050050050050050050050050050050050050050050050050050050050050012500缺料21341112112120断头1113夹杂111115丝裂3511144120油多11撕边311272117气泡1113卷裂1112270005756003006031246473032522761.01.41.01.20.00.00.60.00.01.20.00.60.20.40.81.20.81.40.60.00.60.41.00.40.40.61%1122.00%2350034=2545≥1.33说明栏A-分检M-反馈R-维修S-调整W-工装X-换人过程能力请设定参数=△临界距离/3σp过程能力CPK1.3347结论允许的P=样本量n=子组数k=合计日/月批量/号检验数n△临界距离=允许的不良率P-AVE(P)=P-chart说明事项:数据必须从生产现场取得.确保每批容量保持一致.在控制图中标注过程重大事件.不合格品率的平均值AVE(P)=∑(npk)/∑nk=标准偏差σp=SQRT{AVE(P)[1-AVE(P)]/n}=上控制限UCLp=AVE(P)+3σp=下控制限LCLp=AVE(P)-3σp=零件名称质量特性测量单位不良缺陷记录/划正记数不良数d不良率p1.88%原因追踪在计算P时过程必须是受控状态.满足检验室P控制图0.61%0.00350.0165-0.00430.0139暖风器密封垫外观SM1911.40零件图号最大值P图控制图控制上限02.12.08-03.01.01500件/日制造部门工序名称管制期限抽样方法工作者制定者硫化车间平均值最小值中心线控制下限0.740.000.74%0.00%UCLp=CLp=LCLp=硫化P控制图-辐板螺母CPK-0.200.000.200.400.600.801.001.201.401.601.802.0012345678910111213141516171819202122232425CLpUCLp