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1、108NOTESTheredocumentsareshipbuildingqualitystandardimplementedbyouryardpresently.TheyconsistoftwopartslikeQUALITYCONTROLTHROUGHPRODUCTIONandCONSTRUCTIONACCURACYTakenasamainbasisfortheshipbuildinginouryard,thisconstructionaccuracyismadeaccordingtotheshipbuildingqualitystandardinad

2、vancedshipbuildingnations,internationalconventionsaswellasrulesandregulationsofsomewell-knownclassificationsocieties.Forthispurpose,werequire:1.detailedworkmanshipanddrawings,ifnootherspecificrestriction,complywiththerespectiverequirementsstatedinthisSTANDARD.Incaseofdifference,th

3、isSTANDARDshallgovernall.2.shouldtherebesomeitemsinthenewbuildingcontractortechnicalspecificationofhigherrequirementthanthisSTANDARD,theseitemsshouldberegardedasanexceptionandperformedaccordingtospecificrequirementotherwiseannounced.108CONTENTSPART1QUALITYCONTROLTHROUGHPRODUCTION1

4、STEELMATERIALANDPROCESSING………………………………………61.1Steelmaterial……………………………………………………………………..61.2Steelprocessing…………………………………………………………………...62FIXINGANDASSEMBLING……………………………………………………72.1Fixingandassemblingofpartsandmembers………………………………….…72.2Blockassembling…………………………………………………………………73WELDIN

5、G……………………………………………………………………….83.1Preparationbeforewelding……………………………………………….………83.2Weldingprocess………………………………………………………………….83.3Weldinginspection……………………………………………………………….83.4Keypointsofqualitycontrol……………………………………………………..94TIGHTNESSTEST………………………………………………………………..95FABRICATION,FIXING

6、,TIGHTNESSTESTINGANDFLUSHINGOFPIPES………………………………………………………………………………105.1Fabricationofpipes………………………………………………………..…….105.2Fixingofpipesandfittings…………………………………………………….115.3Tightnesstestingofpipingsystem……………………………………………....125.4Flushingofpipes…………………………………………………………………126PAINTING……………

7、…………………………………………………...………136.1Pre-treatmentofsteelsurface……………………………………………………136.2Shopprimertouch-up………………………………………………………….....136.3Secondaryderustingandsurfacecleaning…………………………………...….136.4Paintingwork…………………………………………………………………..137HULLOUTFITTING……………………………………………………………137.1Pre-ou

8、tfittingofshipequipment…………………………