如何推行spc統(tǒng)計(jì)制程管制-資料下載頁(yè)
2025-02-05 03:12本頁(yè)面
【正文】 very large/sudden shifts False alarm rate: % Example: UCL CL LCL SPC Trend Rules Page: 38 QA Department ECT Rule 2: 9 consecutive points on the same side of the centerline Uses: Detects small shifts or trends False alarm rate: % Example: UCL CL LCL SPC Trend Rules Page: 39 QA Department ECT SPC Trend Rules Rule 3: 6 consecutive points steadily increasing or decreasing Uses: Detects strong trends Example: UCL CL LCL Page: 40 QA Department ECT SPC Trend Rules Rule 4: 14 (or more) consecutive points are alternating up and down. Uses: Detects systematic effects, such as alternating machines, operators, suppliers, etc. Example: Page: 41 QA Department ECT SPC Trend Rules Rule 5: 2 out of 3 consecutive points at least 2 std dev beyond the centerline, on the same side Uses: Detects large changes False alarm rate: % Example: UCL CL LCL Page: 42 QA Department ECT SPC Trend Rules Rule 6: 4 out of 5 consecutive points on the chart are more than 1 std dev away from the CL Uses: Detects moderatesized changes False alarm rate: % Example: Page: 43 QA Department ECT SPC Trend Rules Rule 7: 15 (or more) consecutive points are within 1 std dev of the CL Uses: Detects a decrease in process variation Example: Page: 44 QA Department ECT SPC Trend Rules Rule 8: 8 (or more) consecutive points are on both sides of the CL, but none are within 1 std dev of it. Uses: Detects an increase in process variation Example: Page: 45 QA Department ECT 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 FAIT
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