CPVC、UPVC管道施工方法.doc

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1、CPVC、UPVC管道正确的施工方法SOLVENTCEMENTINGWITHPRIMER使用管道粘合剂和预粘胶水1.Assemblepropermaterialsforthejob(propercement,primerandapplicatorforthesizeofpipingsystemtobeassembled)使用正确的物料施工（正确的管道胶水，预粘胶水和适当尺寸的涂抹工具）。2.Pipemustbecutassquareaspossible.Useahandsawandmiterboxormechanicalsaw.

2、Adiagonalcutreducesbondingareainthemosteffectivepartofthejoint.切割管道于垂直面，可用手锯和定管盒或用机械锯子，斜割会减少粘接面积。3.Plastictubingcuttersmayalsobeusedforcuttingplasticpipe;however,someproducearaisedbeadattheendofthepipe.Thisbeadmustberemovedwithafileorreamer,asitwillwipethecementawayw

3、henpipeininsertedintothefitting.胶管管道切割器也可以切割胶管，但是用管道切割器会使切口边缘产生圈状粒子，因此需要用撮子来清除，如果不清除这些碎粒子，当管材插入管件时，管道边缘的粒子会擦去胶水而影响粘接的效果。4.Removeallburrsfromboththeinsideandoutsideofthepipewithaknife,fileorreamer.Burrscanscrapechannelsintopre-softenedsurfacesorcreatehang-upsinsidesur

4、facewalls.用撮子或刀子清除管道内外碎粒子，因为碎粒子会擦去管内已软化之表层而产生颗粒状胶水悬挂在管墙上。5.Removedirt,greaseandmoisture.Athoroughwipewithacleandryragisusuallysufficient.(moisturewillretardcureanddirtorgreasecanpreventadhesion)用干净的布来抹除管内外的灰尘，油迹和水分。（水分会延长干化时间，灰尘和油迹会影响粘接强度）6.Checkpipeandfittingsfordry

5、fitbeforecementing.Forproperinterferencefit,fittingshouldgooverendofpipeeasilybutbecometightabout1/3to3/4ofthewayon.粘接管道前要测试管材和管件结合的松紧度。在正常情形下，管道应该很容易插入管件内大约1/4到3/4左右。7.Usetherightapplicatorforthesizeofpipeorfittingsbeingjoined.Theapplicatorsizeshouldbeequalto1/2thep

6、ipediameter.Itisimportantthatasatisfactorysizeapplicatorbeusedtohelpensurethatsufficientlayersofcementareapplied.使用正确的涂抹器于不同尺寸的管材和管件之粘合。涂抹器宽度应该相当于管材直径的一半，使用适当的涂抹器是非常重要的，因为它能保证抹足够的胶水于管道的表面。8.Priming:thepurposeofaprimeristopenetrateandsoftenthesurfacessotheycanfusetoge

7、ther.Theproperuseofaprimerandcheckingitssofteningeffectprovidesassurancethatthesurfacesarepreparedforfusioninawidevarietyofconditions.Checkthepenetrationoriftheweatherchangesduringtheday.Usingaknifeorothersharpobject,dragtheedgeoverthecoatedsurface.Properpenetrationh

8、asbeenmadeifyoucanscratchorscrapeafewthousandthsoftheprimedsurfacesaway.Becauseweatherconditionsdoaffectprimingandcementingaction,r