spc 應(yīng)用表格-控制圖 P管制圖表

1、7P管管制制圖圖表表(一一)管制圖編號(hào)：0021產(chǎn)品名稱：耦合器部門：生產(chǎn)部上管制線：VCL=P+3P(1-P)/n限制日期：2003.1.1-1.30工序：合蓋儀表：網(wǎng)絡(luò)分析儀中心線：CL=Pn/n 抽樣方法：取樣時(shí)間22天，品質(zhì)特性：電性能指標(biāo)檢測人：羅金輝下管制線：LCL= P-3P(1-P)/n每天隨機(jī)抽樣1組，每組100件。序號(hào)12345678910111213141516171819202122測定人:WK檢查數(shù)100100100100100100100100100100100100100100100100100100100100100100n =2200Pn32214032232

2、133313334322435284032293332342335Pn=677P32.021.040.032.023.021.033.031.033.034.032.024.035.028.040.032.029.033.032.034.023.035.0P =30.8VCL44.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.644.6柏柏拉拉圖圖分分析析LCL16.916.916.916.916.916.916.916.916.916.916.916.916.916.916.91

3、6.916.916.916.916.916.916.9不良種類耦合大1短路2隔離不夠3駐波高4耦合小5其他7合計(jì)P30.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.830.8不良數(shù)402184533161677占不良比59%27%7.80%4.50%0.90%0.10%管管制制圖圖%統(tǒng)統(tǒng)計(jì)計(jì) 管制圖顯穩(wěn)態(tài)，制程正常。 持續(xù)改進(jìn)：在402臺(tái)耦合度偏大的耦合器中，據(jù)本月不良記錄分分析析有321臺(tái)為5dB耦合器，需通知技術(shù)部對(duì)其進(jìn)行原因分析，提出改善對(duì)策，減少下月此類不良數(shù)。0102030405060CLPUCLLCL40218453316159.30%86.00%93.00%97.58%98.90% 100.00%12345601002003004005006000.00%10.00%20.00%30.00%40.00%50.00%60.00%70.00%80.00%90.00%100.00%累計(jì)百分比不良數(shù)量77不良類別序號(hào)不良數(shù)占不良比 累計(jì)比駐波高140259.30%59.30%短路218427.00%86.00%隔離不夠3537.83