{"id":1162,"date":"2011-07-12T08:04:00","date_gmt":"2011-07-12T00:04:00","guid":{"rendered":"\/\/m.letratesoro.com\/2011\/07\/i%e5%85%ad%e5%80%8b%e6%a8%99%e6%ba%96%e5%b7%ae%e4%b9%8b%e6%88%91%e8%a6%8b-six-sigma\/"},"modified":"2022-07-02T21:22:18","modified_gmt":"2022-07-02T13:22:18","slug":"six-sigma-i","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2011\/07\/six-sigma-i\/","title":{"rendered":"\u516d\u500b\u6a19\u6e96\u5dee(six sigma, 6σ)\u904b\u7528\u65bc\u65e5\u5e38\u751f\u6d3b"},"content":{"rendered":"<\/p>\n
\u516d\u500b\u6a19\u6e96\u5dee(six sigma\uff0c\u53c8\u7a316\u03c3)\u539f\u672c\u662f\u88fd\u9020\u5de5\u5ee0\u88e1\u7528\u4f86\u6539\u5584\u7522\u54c1\u826f\u7387\u7684\u4e00\u9805\u76ee\u6a19\uff0c\u5b83\u6e90\u81ea\u65bc\u7d71\u8a08\u88fd\u7a0b\u7ba1\u5236\uff08Statistical Process Control\uff0c\u7c21\u7a31SPC\uff09\u7684\u7406\u8ad6\uff0c\u4f46\u73fe\u5728\u5e7e\u4e4e\u5df2\u7d93\u8b8a\u6210\u4e86\u5404\u884c\u5404\u696d\u6eff\u8db3\u5ba2\u6236\u7684\u4e00\u9805\u6307\u6a19\u3002<\/font><\/p>\n \u7c21\u55ae\u4f86\u8aaa\uff0c\u7b26\u54086\u03c3\u5c31\u4ee3\u8868\u6bcf\u751f\u7522\u51fa\u4e00\u767e\u842c\u500b\u7522\u54c1\uff0c\u5176\u4e0d\u826f\u54c1\u5fc5\u9808\u4f4e\u65bc\u56db\u500b(\u66f4\u7cbe\u78ba\u4f86\u8aaa\u662f3.4\u500b)\uff0c\u8f49\u63db\u6210\u4e00\u822c\u670d\u52d9\u696d\u7684\u7528\u8a9e\uff0c\u5c31\u662f\u6bcf\u4e00\u767e\u842c\u4eba\u6b21\u7684\u5ba2\u4eba\uff0c\u5176\u4e2d\u4e0d\u6eff\u610f\u670d\u52d9\u7684\u4e0d\u53ef\u4ee5\u8d85\u904e\u56db\u4eba\u3002\u7e3d\u6b78\u4e00\u53e5\u8a71\uff0c\u8ffd\u6c42\u516d\u500b\u6a19\u6e96\u5dee\u5c31\u662f\u5728\u8ffd\u6c42\u96f6\u7f3a\u9ede\uff0c\u56e0\u70ba\u767e\u842c\u5206\u4e4b3.4\u7684\u4e0d\u826f\u7387\u5c0d\u5927\u90e8\u5206\u7684\u88fd\u54c1\u4f86\u8aaa\u5e7e\u4e4e\u662f\u8da8\u8fd1\u65bc\u96f6\u7684\u610f\u601d\u3002<\/font><\/p>\n <\/p>\n \u90a3\u57f7\u884c6\u03c3\u6709\u4f55\u597d\u8655\uff1f<\/strong><\/font><\/p>\n \u57f7\u884c6\u03c3\u53ef\u4ee5\u5e6b\u52a9\u964d\u4f4e\u7522\u54c1\u751f\u7522\u6642\u7684\u4e0d\u826f\u7387\uff0c\u56e0\u70ba\u8981\u662f\u751f\u7522\u51fa\u4e0d\u826f\u54c1\uff0c\u5c31\u5fc5\u9808\u82b1\u8cbb\u984d\u5916\u7684\u4eba\u529b\u53ca\u7269\u529b\u6210\u672c\u4f86\u4fee\u7406\u5b83\uff0c\u4e0d\u4f46\u6d6a\u8cbb\u6642\u9593\u4e5f\u6d6a\u8cbb\u91d1\u9322\uff0c\u66f4\u53ef\u80fd\u56e0\u70ba\u4e0d\u5c0f\u5fc3\u628a\u4e0d\u826f\u54c1\u6f0f\u4ea4\u5230\u9867\u5ba2\u624b\u4e2d\uff0c\u800c\u9020\u6210\u8ce0\u511f\u6216\u640d\u5931\u5ba2\u6236\u7684\u56b4\u91cd\u5f8c\u679c\u3002<\/font><\/p>\n \u5c31\u670d\u52d9\u696d\u4f86\u8aaa\uff0c\u57f7\u884c6\u03c3\u53ef\u4ee5\u964d\u4f4e\u9867\u5ba2\u7684\u4e0d\u6eff\u610f\u7387\uff0c\u8b93\u9867\u5ba2\u9858\u610f\u518d\u56de\u982d\u4f86\u5149\u9867\u6211\u5011\u7684\u670d\u52d9\u6216\u8cfc\u8cb7\u5546\u54c1\u3002<\/font><\/p>\n \u65e2\u7136\u57f7\u884c6\u03c3\u6709\u9019\u9ebc\u591a\u7684\u597d\u8655\uff0c\u90a3\u8981\u5982\u4f55\u57f7\u884c\u5462\uff1f<\/strong><\/font><\/p>\n \u9996\u5148\u4f60\u5fc5\u9808\u8981\u9078\u5b9a\u4e00\u9805\u53ef\u4ee5\u6578\u64da\u5316<\/font><\/strong>\u7684\u76ee\u6a19\uff0c\u7136\u5f8c\u8a02\u5b9a\u9019\u500b\u76ee\u6a19\u7684\u4e0a\u3001\u4e0b\u754c\u9650\uff0c\u9084\u8981\u900f\u904e\u4e0d\u65b7\u7684\u8166\u529b\u6fc0\u76ea<\/a>\uff0c\u60f3\u51fa\u5c0d\u7b56\u3001\u6539\u5584\u6d41\u7a0b\u3001\u67e5\u6838\u6548\u679c\uff0c\u5236\u5b9a\u6709\u6548\u7684\u6a19\u6e96\u7a0b\u5e8f\uff0c\u5982\u6b64\u53cd\u8986\uff0c\u6700\u5f8c\u624d\u80fd\u9054\u6210\u76ee\u6a19\u3002<\/font><\/p>\n \u4ee5\u4fbf\u7576\u696d\u70ba\u4f8b\uff0c\u5982\u4f55\u57f7\u884c6\u03c3\uff1f<\/strong><\/font><\/p>\n 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\u6240\u4ee5\u4e0a\u9762\u4f8b\u5b50\u7684\u76ee\u6a19\u5c31\u662f\u300c\u4fbf\u7576\u9001\u9054\u7684\u6642\u9593\u300d\uff0c\u800c\u4e0a\u3001\u4e0b\u754c\u9650\u5c31\u662f11:45\u53ca12:15\uff0c\u800c\u4f60\u5fc5\u9808\u8981\u7d00\u9304\u6bcf\u6b21\u4fbf\u7576\u9001\u9054\u5ba2\u6236\u7684\u6642\u9593\uff0c\u7136\u5f8c\u8a08\u7b97\u51fa\u5176\u6a19\u6e96\u5dee\u4f86\u8861\u91cf\u6210\u679c\u3002\u9019\u88e1\u9084\u6709\u4e00\u500b\u91cd\u9ede\uff0c\u5c31\u662f\u5ba2\u6236\u771f\u6b63\u9700\u8981\u7684\u662f12:00\u4fbf\u7576\u9001\u9054\uff0c\u5982\u679c11:45\uff5e12:15\u5df2\u7d93\u53ef\u4ee5\u8f15\u9b06\u88ab\u9054\u6210\uff0c\u4f55\u59a8\u628a\u81ea\u5df1\u7684\u6a19\u6e96\u518d\u52a0\u56b4\u621011:50\uff5e12:10\uff0c\u76f8\u4fe1\u53ef\u4ee5\u66f4\u9032\u4e00\u6b65\u63d0\u9ad8\u9867\u5ba2\u7684\u6eff\u610f\u5ea6\u3002<\/font><\/p>\n \u4e0d\u540c\u60c5\u6cc1\u4e0b\u6a19\u6e96\u5dee(Sigma, \u03c3)\u6578\u8207\u4e0d\u826f\u7387\u5c0d\u61c9\u8868<\/strong><\/font><\/p>\n \u7576\u88fd\u7a0b\u70ba\u7a69\u5b9a<\/strong><\/em>\u6642\uff0c\u91cf\u6e2c\u51fa\u4f86\u7684\u6578\u64da\u5206\u4f48\u4e00\u822c\u6703\u6210\u300c\u5e38\u614b\u5206\u914d\/\u6b63\u614b\u5206\u4f48\u300d\uff0c\u4f9d\u64da\u898f\u683c\u4e0a\u9650(USL)\u8207\u898f\u683c\u4e0b\u9650(LSL)\uff0c\u53ef\u4ee5\u8a08\u7b97\u51fa\u898f\u683c\u7bc4\u570d(T=USL-LSL)\u3001\u88fd\u7a0b\u7684\u4e2d\u5fc3\u503c\u70ba(x\u0304<\/font>)\u3001\u6a19\u6e96\u5dee\u70ba(\u03c3)\uff0c\u4e00\u822c\u60c5\u5f62\u4e0b\u6211\u5011\u6703\u7528<\/font>\u3010M-x\u0304=1.5\u03c3\u3011\u4f86\u8868\u793a\u88fd\u7a0b\u4e2d\u5fc3\u8207\u898f\u683c\u4e2d\u5fc3(M)\u6709\u504f\u79fb\uff0c\u56e0\u70ba\u5be6\u969b\u57f7\u884c\u6642\u5f88\u96e3\u6b63\u4e2d\u7d05\u5fc3\u7684\uff08\u898f\u683c\u4e2d\u5fc3\u503c\uff09\uff0c\u5982\u679c\u3010<\/font><\/font>M=x\u0304<\/font>\u3011\u5247\u8868\u793a\u7121\u504f\u79fb\uff0c\u9019\u5c6c\u65bc\u7d14\u7406\u60f3\u72c0\u6cc1\u7684\u7406\u8ad6\u503c\u3002<\/font><\/p>\n \u4e0b\u8868\u5217\u51fa\u4e0d\u540c\u6a19\u6e96\u5dee\u6578(\u03c3)\u8207\u5176\u6240\u5c0d\u61c9\u4e4b\u4e0d\u826f\u7387(ppm<\/a>)\u3002\u6a19\u6e96\u5dee\u7684\u7b97\u6cd5\u53ea\u8981\u5229\u7528Excel\u7684STDEV()\u51fd\u6578\u5c31\u53ef\u4ee5\u88ab\u8a08\u7b97\u51fa\u4f86\u3002<\/font><\/p>\n \u4e00\u822c\u6211\u5011\u8aaa\u300c6\u500b\u897f\u683c\u746a\u7684\u4e0d\u826f\u7387\u70ba3.4\u300d\u5c31\u662f\u5047\u8a2d\u5be6\u969b\u88fd\u54c1\u7684\u4e2d\u5fc3\u503c\u8207\u898f\u683c\u4e2d\u5fc3\u67091.5\u03c3\u504f\u79fb\u72c0\u614b\u4e0b\u6240\u8a08\u7b97\u51fa\u4f86\u7684<\/span>\uff0c\u81f3\u65bc\u70ba\u4f55\u662f1.5\u500b\u03c3\u504f\u79fb\uff0c\u9019\u7d14\u7cb9\u5c31\u662f\u7d93\u9a57\u503c\u4e86\uff0c\u6216\u662f\u81ea\u5df1\u60f3\u8fa6\u6cd5\u7d71\u8a08\u4e00\u4e0b\u3002<\/font><\/p>\n \u66f4\u591a\u6a19\u6e96\u5dee\u8207\u4e0d\u826f\u7387\u7684\u8cc7\u8a0a\u53ef\u4ee5\u53c3\u8003\u3010Cpk\u3001Sigma\u8207\u4e0d\u826f\u7387PPM\u63db\u7b97\u5c0d\u7167\u8868<\/a>\u3011\u4e00\u6587\u3002<\/font><\/p>\n