SPC統(tǒng)計過程控制程序

1、QUALITY SY STEMS PROCEDUREStatistical Process Con trol統(tǒng)計過程控制Issued:Oct/28/2010IQP: STA-400Page: 1 of 5ATTACHMENTS:（N/A）REFERENCES:（a）SPC User's Guide（b）STA-200 X（bar）-R（c）STA-300 Capability Studies1.0 PURPOSE（目的）To defi ne the Statistical Process Con trol applicati ons for our producti on in spe

2、ct process. 為了規(guī)范生產(chǎn)檢驗過程的SPC的控制。2.0 SCOPE （范圍）This procedure is applied to all the producti on part and process n eed to SPC con trol. 本文件適用于公司內(nèi)有 SPC監(jiān)控要求的所有產(chǎn)品及工藝。3.0 FUNCTIONS AFFECTED（涉及部門）Quality （質(zhì)量部）Productio n（生產(chǎn)）Project （項目）Desig n（設(shè)計）Engin eeri ng（工程）Quality System （質(zhì)量系統(tǒng)）4.0 DEFINITIONS （定義）4.1

3、 The primary determ in ate in con trol chart selecti on is Data Type.選擇控制圖最基本的決定條件是數(shù)據(jù)類型。4.1.1 Continu ous data: the data from test ing, for example: label dime nsions.計量型數(shù)據(jù)：通過測量得到的數(shù)據(jù)，如標簽尺寸。4.1.2 Attribute data: the data from counting, the attribute data have two outcome (Pass/Fail, Good/NG).計數(shù)型數(shù)據(jù)：通過

4、點數(shù)得到的數(shù)據(jù)，計數(shù)型數(shù)據(jù)只有兩個值(合格/不合格,通過/不通過)。統(tǒng)計過程控制IQP: STA-400Issued: Oct/28/2010Page: 2 of 54.2 Statistical Process Con trol(SPC): Using the statistical tech no logy(con trol chart ) for an alyz ingthe stability of the process or output data , proper measure to reach and keep the statistical control status t

5、o improve the process ability.統(tǒng)計過程控制：使用統(tǒng)計技術(shù)(如控制圖)去分析一個過程或輸出數(shù)據(jù)的穩(wěn)定性，采取適當?shù)拇胧┤ミ_到和保持統(tǒng)計控制狀態(tài)并改進過程能力。4.3 Control of chart : The classical and effective tools to be used for reaching SPC control.控制圖：達到統(tǒng)計控制的典型和有效工具。4.4 Ability of con trol: The ability of process un der the SPC can be con firmed, the data must

6、 beran dom, in depe ndent, and no rmally distributed.控制能力：只有過程在統(tǒng)計控制狀態(tài)下才能被用于SPC控制，數(shù)據(jù)必須是隨機，獨立的和符合正態(tài)分布的。5.0 PROCEDURE (程序)5.1 Parametric choice : Quality engineer, Design engineer or manufacture engineer together to confirm the way of collect data, information of each batch, frequency and which control

7、of chart weneed.參數(shù)選擇：質(zhì)量工程師，客戶工程師和制造工程師確定數(shù)據(jù)收集方法，分組信息，頻率和所要使 用的控制圖。SPC con trol n eed follow the customer 2Ddrawi ng key dime nsion or process key point in formatio n to set up. (Follow CP, BOO, 2D drawing info to make SPC control standard).SPC控制需要按照客戶圖紙重要尺寸的管控或生產(chǎn)過程中重點需要管控的內(nèi)容對過程進行控制。5.2 SPC chart choi

8、ce: For the continuous data and normal distribution, usually use the X bar-R, X barS, I-MR. For the attribute data, usually use the failure rate P-chart.SPC圖形選擇：對于計量型數(shù)據(jù)并且滿足正態(tài)分布，通常采用的是：均值變差圖(X bar-R)，均值標準差圖(X bar-S )和單值極差圖I-MR。對于計數(shù)型數(shù)據(jù)，通常采用不合格品率的P圖。l-MR chart單值移動極差QUALITY SY STEMS PROCEDUREStatistical

9、 Process Con trol統(tǒng)計過程控制IQP: STA-400Page: 3 of 5X bar-S chart均值標準差圖*1X bar-R chart均值-極差圖標準脩差 QUALITY SY STEMS PROCEDUREStatistical Process Con trolQUALITY SY STEMS PROCEDUREStatistical Process Con trol5.3 Confirm the con trol limit and alarm rule:SPC system will bring about the control limit accordin

10、g to the historic data; it will make alarm for the data out ofcontrol limit and toleranee of customerrequirement. When make a issue alarm, wen eed to take a acti on for improv ing as soon as possible.確定控制線及報警規(guī)則：SPC系統(tǒng)將根據(jù)原始數(shù)據(jù)建立控制線，而且超出控制線及客戶公差線將報警。當發(fā)生問題警報， 我們需要盡可能快的采取行動改善。The Western Electric Rules ar

11、e a com mon method of ide ntify ing special cause variati on.一般都遵循西部電器原則進行識別特殊原因引起的變異5.4 Execution performer:Production operator and IPQC need to collect the data and record it intoSPC system. Recorder n eed to follow the CP, BOO and customer draw ing requireme nt.生產(chǎn)操作員和IPQC按規(guī)定收集并記錄數(shù)據(jù)。記錄需要依據(jù)控制計劃，BOO

12、和客戶圖紙要求進行。5.5 Action plan : Operator and recorder-leader-technician-engineer( ME, QE, DE )-managerIPQC and operator need to judge the process stability at any time, when found the control chart issue to notice DE, ME and QEIPQC和生產(chǎn)人員應(yīng)隨時判斷工序是否處于穩(wěn)定受控狀態(tài)，當控制圖上的點發(fā)生異常時應(yīng)及時通 知工藝工程師，制造工程師和質(zhì)量工程師。QUALITY SY STE

13、MS PROCEDUREStatistical Process Con trolQUALITY SY STEMS PROCEDUREStatistical Process Con trol統(tǒng)計過程控制When the con trol chart have issue, DE, ME and QE must an alyze the issue with QE, and make actions improve and avoid this issue.當控制圖上點排列發(fā)生異常時，工藝工程師，制造工程師和質(zhì)量工程師應(yīng)及時對此問題組織分 析，必要時采取糾正和預防措施。5.6 Con trol l

14、imit modificati on:Desig n engin eer or process engin eer can cha nge the con trol limit and midli ne accord ing to the customer requireme nt and process con trol requireme nt.客戶工程師或工藝工程師必要時修訂控制界限，中心線根據(jù)客戶要求及過程控制要求。5.7 SPC SYSTEM MAINTENANCE (SPC 系統(tǒng)維護)Using the SPC system to man age and maintain the

15、producti on data, cooperate with customer to an alyze and study the historic product ion data. IT n eeds to mai nta in the useful of SPC software and related SPC server.使用SPC系統(tǒng)對相關(guān)生產(chǎn)數(shù)據(jù)進行管理和維護，協(xié)助客戶對SPC中生產(chǎn)歷史數(shù)據(jù)進行分析和研究。IT協(xié)助對SPC軟件及相關(guān)SPC server進行維護。6.0 RESPONSIBLITIES (職責)6.1 Man ufacturi ng Engin eer will

16、:制造工程師責任：(A) Determi ne the measur ing samples and operators for the mach ine.(A) 決定機器測量的產(chǎn)品和相關(guān)測量人員。(B) Resp on sible for the an alysis of SPC system in formati on for product.(B) 負責對生產(chǎn)產(chǎn)品的SPC系統(tǒng)數(shù)據(jù)進行分析。(C) Follow the measureme nt data and SPC con trol chart to improveme nt the dome punch process.(C) 通過

17、數(shù)據(jù)測量和SPC控制圖的分析達到對 dome成型過程的控制。(D) Using the SPC system man age and maintain the producti on data, cooperate with customer to an alyze and study the historic product ion data.(D) 使用SPC系統(tǒng)對相關(guān)生產(chǎn)數(shù)據(jù)進行管理和維護，協(xié)助客戶對SPC中生產(chǎn)歷史數(shù)據(jù)進行分析和研究。6.2 Quality Engin eer will:質(zhì)量部責任：(A) Resp on sible for the an alysis of SPC s

18、ystem for parts issue.負責對生產(chǎn)在SPC系統(tǒng)中出現(xiàn)問題的產(chǎn)品進行分析管理。QUALITY SY STEMS PROCEDUREStatistical Process Con trol統(tǒng)計過程控制Issued: Oct/28/2010IQP: STA-400Page: 5 of 5(A) Resp on sible for re-givi ng trai ning to operators and in spector who fail to meet the target.(B) 需要對沒有達到要求的操作員和檢驗員進行在培訓。(C) Follow the measurem

19、e nt data and SPC con trol chart to require the producti on who improve the process.(B) 通過測量的數(shù)據(jù)和SPC控制圖要求生產(chǎn)及時的改進相關(guān)工藝。6.3 Production will:生產(chǎn)責任：(A) Support Quality and ME to find out the solution for the production defect issue, and online control the machi ne stability.(A) 協(xié)助ME和質(zhì)量找出生產(chǎn)不良問題的解決方法，同時控制生產(chǎn)機器的穩(wěn)定性。(B) Producti on specialist supports Quality to perform the SPC capability for the producti on.(B)生產(chǎn)負責人支持質(zhì)量部門一起提高生產(chǎn)中SPC的能力。6.4 Desig ner Engin eer will :設(shè)計責任：(A)Cooperati o