【正文】
特征: 7個(gè)或以上數(shù)據(jù)在中心線上方或下方ConfidentialSCMC Producer Forum 28Moving Range Chart二 . 移動(dòng)偏差圖ConfidentialSCMC Producer Forum 29Line 1 Qoo PET 1500 SPC Brix MonitoringCp = Cpk = Sample wthin spec % Mean= SD = 35% TRUEData圖 上控線( UCL)ConfidentialSCMC Producer Forum 30該圖反映兩連續(xù)相鄰數(shù)據(jù)的偏差,數(shù)據(jù)點(diǎn)在控制線范圍內(nèi)表明過程沒有改變;反之則表明過程發(fā)生了變化。累積線,若樣本呈正態(tài)分布,其值趨近 1。ConfidentialSCMC Producer Forum 38理想的正態(tài)分布如果所有的樣本數(shù)據(jù)都在我們的上、下控制線范圍之內(nèi),正態(tài)分布圖如下:我們的控制目標(biāo)ConfidentialSCMC Producer Forum 39謝謝大家!ConfidentialSCMC Producer Forum 40謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH。直方圖 正態(tài)分布圖ConfidentialSCMC Producer Forum 36% % % 34% 34% % %%3? +3?2? 1? +2?+1?mean偏差較大“理想的 ”數(shù)據(jù)分布區(qū)域68% % %偏差較大 (mean);正態(tài)分布 的 3個(gè)特征 :