外高桥船舶建造质量标准(英文版)

1SWSSWSCo.,Ltd.EnterpriseStandardQ/SWS60-001.2-2001SHIPBUILDINGQUALITYSTANDARDCONSTRUCTIONACCURACYIssuedonJuly8,2001PutinpracticeonJuly18,2001ByShanghaiWaigaoqiaoShipbuildingCo.LTD.(SWS)2Q/SWS60-001.1-2001CONTENTSFOREWORD1HULLCONSTRUCTION11.1Steelmaterials11.2Marking31.3Cutting31.4Forming61.5Fixingandassembling91.6Welding171.7Fairnessandfinishing191.8Principaldimensionsanddeformation231.9Draughtandfreeboardmarks241.10Surfacefinishstate242HULLOUTFITTING292.1Rudder292.2Mast,deckcranepostandderrickboom312.3Cargoholdhatchcover322.4Watertightclosingdevices402.5Cabinoutfitting503INDPECTIONMETHODANDQUALTTYSTANDARDFORMACHINERYPART543.1Shafting543.2Mainengine623.3Dieselgeneratingset643.4Aircompressorandairbottle653.5Auxiliaryboiler663.6Pump673.7Reinspectionafterseatrial673.8Piping674CABLELAYINGANDELECTRICEQUIPMENTINSTALLATION834.1Generalrequirementofcablelaying834.2Cablesupporterandrequirementforfastening844.3Cablepenetratingdecks,bulkheadandhullstructure844.4Flameretardantrequirementforbunchedcables854.5Cableearthing854.6Generalrequirementofelectricequipmentinstallation855PAINTING895.1Pre-treatmentofsteelsurface895.2Secondaryderusting905.3Surfacecleaning915.4Qualityofcoating925.5Filmthicknessofcoating923Q/SWS60-001.2-2001FOREWORDThisstandardisonepartofSWSShipbuildingQualitystandards.ChinaShipbuildingQualityStandard,DAEWOOShipbuildingQualityStandardofDAEWOOHeavyindustryLD,andShipbuildingQualityStandardofJiangnanShipbuilding(group)Co.LTD.areusedasreferenceduringformingthisstandard.11THESTANDARDSOFSHIPBUILDINGQUALITYCONSTRUCTIONACCURACYQ/SWS60-001.2-2001Notes:Thisstandardincludestheitemsofinspections/testsforhullconstruction,outfitting,machineryandelectricalinstallationandpainting.Thestandardappliesmainlytotheconventionalsea-goingsteelshipsof3000tonedeadweightandabovedrivebydieselengine.Thisstandardalsobeusedasareferenceforshipsunder3000tonedeadweight.1HULLCONSTRUCTON1.1SteelMaterials1.1.1Surfacedefectsofsteelplatesshallbekeptwithinthelimitsasdefinedintable1-1Table1-1ItemsRequirementsPits,flaking,scars,scratchesandairbubblest≥2050mmt20mmDepthofdefectmmDefectarearatio(%)1)ZoneAisinexcellentorder,withveryslightsurfacedefectslessthan0.15mm,andnorepairingisneeded.2)ZoneBisingoodorder,withacertainamountofpermissiblesurfacedefects,andnorepairingisneeded.Areaenclosedbyfulllinesdenotesplatewiththicknesslessthan20mm,andareaenclosedbydottedline(includingstraightline)denotesplateswiththicknessfrom20to50mm.3)ZoneCisindisorder,andrepairingisneeded,i.e.therearecertainamountsofimpermissiblesurfacedefectsthatshallberepairedaccordingtotherequirement.4)Repairingmethodforsurfacedefects:ford0.07t,bygrinding(butinnocased≤3mm),for0.07t≤d≤0.2t,bybuilt-upweldingfollowedbygrindingwheredisdefectdepth,mmtisplatethickness,mmIncasethedefectdepthexceeds20%platethicknessanddefectareaexceeds2%platearea,thispartofplateistobereplacedasrequired.21.1.2Thenegativethicknesstoleranceofhullstructuralsteelplateshallbekeptnottoexceed0.3mm.1.1.3Laminationofsteelplateistobetreatedaccordingtotable1-2.Table1-2ItemsRequirementLocallamination(a)(b)1)Incasetherangeoflaminationisfairlysmallitcanbechippedoutandbuilt-upbyweldingasshowninFig(a).Incasetherangeoflaminationisfairlysmallandneartheplatesurfaceitispreferabletodothebuilt-upweldingafterchippingoutasshowninfig(b).2)Incasethelaminationissevereanddefective,itmustbecarefullyexaminedandrepairedbyappropriatemethod.3)Incasethebuilt-upweldinglengthexceeds20%theedgelengthofthesteelplate,non-destructiveinspectionistobedonetocheckthequality.Severelamination1)Itisrecommendedtochangepartoftheplateincasethelaminationisfairlyextensive.2)Minimumbreadthorlengthofthepartofstandardsizeplatetobereplaceare:Forshellplateorstrengthdeckplate:Within0.6Lamidship1600mm;Outside0.6Lamidship800mm;Forothermembers:300mmor10timesplatethickness,whichevergreater.Inindividualcases,theabovevaluesmaybereducedto50mm+4t;wheretisplatethicknessinmm.3)Thewholeplatemustbereplacedincasethelaminationisextremelysevereandextensive.1.1.4Defectscastingsteelsurfacearetobetreatedaccordingtotable1-3.3Table1-3ItemsRemarksIncasethedepthofdefectisover20%platethicknessorthedefectisover25mmindepthand150mminlength.Airbubbles,flawsandotherhazardousdefectsRepairingandbuildingupbyappropriatemethodafternondestructiveinspection1.2Marking1.2.1Positiondeviationofthemarkingistobekeptwithinthelimitsasdefinedintable1-4.Table1-4mmItemsStandardrangeAllowablelimitsRemarksDeviationofcenterline,theoreticalline,alignmentline,checklineandinstallationpositionline2.03.01.2.2Deviationofmarkingdimensionsofpartsandmembersshallbekeptwithinthelimitsasdefinedintable1-5.Table1-5mmItemsStandardrangeAllowablelimitsRemarksLength±2.0±3.0Breadth±1.5±2.5Differencebetweendiagonals±2.0±3.0ForrectangularplateCurvedconfiguration±1.5±2.5L≤4m≤1.0≤1.24m＜L≤8m≤1.2≤1.5StraightnessL﹥8m≤2.0≤2.5ForstraightedgesofpartormemberAngle±1.5±2.0ForeverymeterCutout,opening≤1.5≤2.01.2.3Deviationofmarkingdimensionofblockstructureistobekeptwithinthelimitsasdefinedintable1-6.Table1-6mmItemsStandardrangeAllowablelimitsRemark