单值2移动极差质量控制图在光谱实验室低合金钢分析中的应用

,2008,28(4):73276MetallurgicalAnalysis,2008,28(4):73276:1000-7571(2008)04-0073-042(,075100):2(X2Rs),(X)(RS)(CL)(UCL)(LCL),X2Rs,,C:2;;;:O652:A:2007-04-17:(1970-),,,,Tel:[phone],E2mail:sisi8677712@1631com,,,,,,,,,,,C,Si,Mn,,,2(X2Rs),12(X2Rs)111X2Rs11111QCQC,,,,11112QCQC,,11211211(X)(RS)[1]XRSX=Xi/n,Xi=Xi1+Xi22(Xi2);RS=RSi/(n-1),RSi=|Xi+1-Xi|,i=1,2,,(n-1):Xii;RSii;n11212[1]CL,UCL,LCLX:CL=X,UCL=X+2166RS,LCL=X-2166RS;Rs:CL=RS,UCL=3127RS,LCL37ZHANGYan2rong.Applicationofqualitycontrolcharttoanalysisoflowalloysteelinspectrumlaboratory.MetallurgicalAnalysis,2008,28(4):73276113X2RSXRSX,RS,XRS,,CL,UCLLCL:XRSiXRSQC,X2RS2211,,,,[2]:(50%),;,;(),7,;,;,,,212,,,,,QC,,;,,213,QC,,QC,,33112(X2Rs)C,,,QC,QC25(2,),,25[4],11Table1Determinationvalueandthemigrationextremedifferenceofcarboninlowalloysteelw/%nXiRsinXiRsi101202010031401207010042012050100415012030100330120101005160120001004401196010071701196010035012030100218011990100460120501003190120301002701202010032001205010048011990100221012010100290119701003220120301003100120001003230120001005110120301002240120501002120120101001250120301002130120201005:Xi2,Xi;Rsii(Note:Ximeanstheaverageval2ueof2determination,maytacitlyaproveXiisonevalue,Rsimeanstheithmigrationextremedifference)47.2.,2008,28(4):73276312X2RS1:X=Xi/n=01202,RS=RSi/(n-1)=01004X:CL=X=01202,UCL=01213,LCL=01191;RS:CL=RS=01004,UCL=01013X(1)RS(2)X2RS,,313,,:CL=1X[3]Fig11Xqualitycontrolchartofcarbon2RS[3]Fig12RSqualitycontrolchartofcarbon4,QC,C,,,,,:[1],,,11:,20021101[2]11:,20011[3]1[J].(Met2allurgicalAnalysis),2005,25(6):822841[4]1(),,1:157ZHANGYan2rong.Applicationofqualitycontrolcharttoanalysisoflowalloysteelinspectrumlaboratory.MetallurgicalAnalysis,2008,28(4):73276ApplicationofqualitycontrolcharttoanalysisoflowalloysteelinspectrumlaboratoryZHANGYan2rong(XuanhuaSteelandIronGroupTechnologyCenter,Xuanhua075100,China)Abstract:Inordertocarryontheinternalqualitycontrol,themonodromy2migrationextremedif2fefence(X2Rs)qualitycontrolchartwasappliedtotheanalysisoflowalloysteelinspectrumlaborato2ry1Throughthecalculationofaveragevalue(X),theaveragevalueofmigrationextremedifference(RS)aswellascontrolchartmiddleline(CL),uppercontrolboundary(UCL),lowcontrolboundary(LCL),theX2RSchartofcarboninlowalloysteelwasdrawnup.FromanalysisandjudgmentfromX2RSchart,thequalitycontrolcouldbecarriedonduringthedeterminationofcarbon.TheresultsprovedthattheX2RSchartcouldeffectivelycontrolthestabilityofdeterminationandaccuracyofre2sults.Keywords:monodromy2migrationextremedifference;qualitycontrolchart;spectrumlaboratory;lowalloysteelanalysis;carbon(),,2009,(),::,,,,-2008111231,:3;3;3,:3;3;3::2141513:0510-83712242139061970393E2mail:[e-mail]67