8d問(wèn)題解決的意義與流程(ppt 40頁(yè))-文庫(kù)吧
2025-02-22 17:00 本頁(yè)面
【正文】 改正行動(dòng)之前 ,先界定及實(shí)施圍堵行動(dòng) ,使內(nèi)部 外部顧客不再受到問(wèn)題之困擾 .需確認(rèn)該行動(dòng)之有效性 . 以數(shù)據(jù)證明物品出貨前已加以緊急防制處理 .(Use data to verify containment prior to shipping) 驗(yàn)證緊急防制處理前之?dāng)?shù)據(jù) .例如 :14%不良率 .(Certification data before containment: example, 14% defective) 驗(yàn)證緊急防制處理後之?dāng)?shù)據(jù) .例如 :%不良率 .(Certification data after containment:% defective) 以數(shù)據(jù)證實(shí)緊急防制措施的有效性 .(The data verifies the quality of the containment action) 2023/3/22 Mingzheng Yang 10 D4:指明及驗(yàn)證真因 1 (Identify and verify root cause) ? 在問(wèn)題的部份和沒(méi)有問(wèn)題部份之間區(qū)分其主要的不同點(diǎn)在哪裡 ?(Determine critical differences between problem areas and nonproblem areas) ? 描繪一個(gè)作業(yè)流程圖 .(Develop a process flow diagram) ? 依據(jù)上述的流程圖 ,描述一個(gè)問(wèn)題與真因分析圖 .(Develop a cause potential root cause and effect problem diagram based on the main process functions in 2. 2023/3/22 Mingzheng Yang 11 ?按照其可能性的大小 ,自大而小排列出問(wèn)題的真因順序 .(Prioritize the potential root causes,most likely to least likely) ?針對(duì)可能真因而實(shí)施的改善措施作改善前後的驗(yàn)證 .(Perform experiment with the potential foot cause present and eliminated) D4:指明及驗(yàn)證真因 2 (Identify and verify root cause) 2023/3/22 Mingzheng Yang 12 ?~~找出所有均能解釋造成該問(wèn)題的可能肇因 ,然後與 D2之問(wèn)題描述及詴驗(yàn)統(tǒng)計(jì)資料進(jìn)行比對(duì) ,劃分及確認(rèn)出真正肇因 . 存在真因時(shí)之?dāng)?shù)據(jù) ,例如 :不良率 20%. (Data with root cause present: example ,20%) 消除真因後的數(shù)據(jù) ,例如 :不良率 %. (Data with root cause eliminated: example , %) 以上數(shù)據(jù)證實(shí)上述的可能肇因是真因 . (The data verifies the potential cause as root cause) D4:指明及驗(yàn)證真因 3 (Identify and verify root cause) 2023/3/22 Mingzheng Yang 13 D5:永久改善對(duì)策 (Permanent) ? 選定最佳的改善對(duì)策 .(Select the best corrective action) ~~界定及實(shí)施最好的永久性改正行動(dòng) ,選取執(zhí)行中的管制以確保該真正肇因確已消除 .一旦正式生產(chǎn)後 ,監(jiān)視長(zhǎng)期的影響 .若有必要頇實(shí)施緊急處理行動(dòng) . 利用生產(chǎn)前詴作去驗(yàn)證改善措施的有效性 .(Use a preproduction run to verify the effectiveness of the corrective action)
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