CBT1152008金属波形膨胀节

CB/T1153-2008金属波形膨胀节CB/T1153-2008Metalbellowsexpansionjoint型式试验大纲Experimentsyllabus无锡金波隔振科技有限公司WuxiJinBoIsolationTechnologyCompanyLimited2011年11月型式试验大纲Typetestoutline一、主题内容和适用范围One,Subjectcontentandapplicablerange本试验大纲规定了CB/T1153-2008金属波形膨胀节的试验项目、试验方法和要求。ThetestprogramsetCB/T1153-2008metalwaveformexpansionjointtestitems,testmethodsandrequirements本试验大纲适用于金属波形膨胀节的型式试验。Thetestprogramissuitableforthemetalwaveformexpansionjointtypetest二、编制依据Two,CompilationbasisCB/T1153-2008金属波形膨胀节。CB/T1153-2008metalwaveformexpansionjoint按照标准规定，膨胀节在试制过程中应进行型式检验，特制订本型式试验大纲。Inaccordancewiththestandardprovisions,expansionjointsduringshouldcarryouttypetesting,specialformulatethetypetest.型号ModelDNdhqtznA数量NumberB1640040042627280.83430.61Bs0680080081333.5350.54444.91三、提供试件：Three,Providetestpieces试件符号的意义：DN 公称通径(Nominaldiameter),mm；d 波根外径()，mm；h 波高(亚2丫6height),mm；q 波距(亚2丫6distance),mm；t 一层材料的厚度(Alayerofmaterialthickness),mm；z 波纹管材料的层数(Corrugatedpipemateriallayers)；n 波纹管的波数(Thewavenumberofthecorrugatedpipe)；A 额定轴向总位移(Ratedtotalaxialdisplacement)，mm；波纹管试件材料为SUS321，其他为Q235-B；CorrugatedtubespecimenmaterialfortheSUS321,theotherQ235-B;设计基准温度均为205℃；Designreferencetemperatureof205DEGc;循环次数均为3000次。Cyclenumberare3000times.四、试验设备：Four,testequipment.液压试验泵；hydraulictestpump;.压力表，精度等级1.5级；pressuregauges,precisiongrade1.5class;3静刚度试验机。Staticstiffnesstestmachine.五、试验项目：Five,testproject.材料检查；materialinspection;.外观检查；visualinspection;.尺寸检验；dimensionalinspection;.焊缝检验；weldinspection;.刚度测定；Determinationofstiffness;.耐压试验；voltagewithstandtest;.疲劳试验。fatiguetest六、试验方法：Six,testmethod:.材料检查：materialinspection:核查膨胀节所用材料的牌号及其材质报告，结果应符合表1；Verificationofexpansionjointmaterialusedforthebrandanditsmaterialqualityreport,theresultsshouldconformtotable1;表1零件名称Partname材料Materialscience名称Name牌号Grade标准号Standardnumber波纹管Corrugatedpipe不锈钢Stainlesssteel0Cr18Ni10TiGB/T4237-1992法兰Flange碳素结构钢CarbonstructuralsteelQ235-BGB/T700-1988定位螺杆Positioningscrew2.外观检查：Appearanceinspection:在日光或人工照明下目测及相关量具检验膨胀节外观，要求如下：Inthesunlightorartificiallightundervisualandrelatedmeasuringtestexpansionjointappearance,requirementsareasfollows:(1)管坯用薄板卷制时只允许有全焊透的对接型纵向焊缝，不允许有环焊缝；tubewithasheetcoilsystemisonlyallowedtohavefullpenetrationbutttypelongitudinalweld,doesnotallowcircumferentialweld;(2)管坯的纵焊缝以最少为原则，在管坯厚度不大于0.5mm时，相邻焊缝的间距应大于150mm，管坯厚度不小于0.8mm时，，相邻焊缝的间距应大于250mm，焊缝条数不多于两条；tubelongitudinalseamwithminimumprinciple,inthetubethicknessislessthan0.5mm,adjacenttheweldspacingshouldbegreaterthan150mm,tubethicknessnotlessthan0.8mm,,adjacenttheweldspacingshouldbegreaterthan250mm,weldnumbernomorethantwo;(3)管坯的拼接应采用自动氩弧焊或等离子焊方法施焊。大于0.5mm的板材拼焊对口错边量、焊缝的凹陷深度及余高应不大于板厚的10%，焊缝表面应呈银白色或金黄色，可呈浅蓝色；thesplicingtubeshouldbeusedforautomaticargonarcweldingandplasmaweldingmethodwelding.Morethan0.5mmplateweldingunfitnessofbuttwelddepressions,depthandresidualhighshouldnotbegreaterthanthethicknessoftheweldsurfaceshouldbe10%,silverywhiteorgoldenyellow,canbealightblue;(4)波峰、波谷与侧壁间应圆滑过渡，波纹表面允许有轻微的模片压痕，不允许有裂纹、焊接飞溅物及明显的凹凸不平和大于单层壁厚负偏差的划痕；peaks,troughsandsidewallshouldbesmoothtransition,corrugatedsurfacetoallowaslightdieindentation,nocrack,weldingspatterandobviousunevenwallthicknessisgreaterthanthesingleandnegativedeviationscratches;(5)膨胀节组件的波纹管与接管连接应采用氩弧焊焊接，碳钢件可采用普通电焊。碳钢件法兰(除密封面外)表面应涂防锈漆两道或涂塑处理；expansionjointassemblyofcorrugatedpipeandtheconnectingpipeshouldbeusedinargonarcwelding,carbonsteelpartscanadoptthecommonwelding.Carbonsteelflange(exceptthesealingsurface)surfaceshouldbecoatedantirustpainttwoorplasticprocessing;(6)膨胀节组件各部位焊缝表面不应有裂纹、气孔、夹渣、飞溅物等缺陷；expansionjointassemblypartsoftheweldsurfaceshouldnotcrack,blowhole,slag,spatterdefects;3.尺寸检验：Dimensioninspection:用精度符合规定极限偏差要求的通用量具及专用量具检查膨胀节的尺寸。要求如下：Withprecisionconformtospecifiedlimitdeviationrequirementsofspecialmeasuringtoolformeasuringandcheckingthesizeofexpansionjoint.Requirementsareasfollows:(1)尺寸按附表要求检查；Sizeaccordingtotheschedulerequirementscheck;(2)多层波纹管管坯的套合间隙应不大于0.8mm；Multilayerbellowstubesleevedgapshouldbelessthan0.8mm;(3)波纹管的波峰、波谷曲率半径的极限偏差为±15%的公称半径；Corrugatedpipe,theradiusofcurvatureofthewavetroughoflimitdeviationof15%nominalradius;(4)膨胀节组件各部位焊缝表面不应有裂纹、气孔、夹渣、飞溅物等缺陷；Expansionjointassemblypartsoftheweldsurfaceshouldnotcrack,blowhole,slag,spatterdefects;(5)膨胀节组件长度公差为±5mm,垂直度公差为1%波纹管公称通径，且不大于3mm,同轴度公差为1%波纹管公称通径，且不大于85mm；Expansionjointassemblylengthtoleranceis+5mm,perpendicularitytoleranceof1%corrugatedtubenominaldiameter,andnotmorethan3mm,coaxialtoleranceof1%corrugatedtubenominaldiameter,andnotmorethan5mmdiameter;.焊缝检验：Weldinspection:波纹管纵焊缝进行拍片检查，焊缝不存在裂纹、未融合和未焊透。CorrugatedpipelongitudinalweldingseamforX-rayexamination,thereisnocrack,lackoffusionweldandweld.刚度测定：Determinationofstiffness:膨胀节的轴向刚度测定，在常温、常压下将试件垂直放置测力机上进行。分5级递增(每级压缩位移量为轴向总补偿量的1/5),共测三遍，取其各级额定位移量下的最大作用力的平均值。其结果应符合B16400的轴向刚度为915.8N/mm,BS06800的轴向刚度为558.0N/mm。Expansionoftheaxialstiffnessmeasurement,atroomtemperature,theatmospherewillbespecimenplacedverticallyontheforcemeasuringmachine.5increments(eachstagecompressiondisplacementaxialtotalcompensationquantity1/5),weremeasuredthreetimes,takethevariousnominaldisplacementunderthemaximumforceofaveragevalue.TheresultsshouldbeinlinewiththeB16400axialstiffnessis915.8N/mm,BS06800axialstiffnessfor558.0N/mm..耐压试验：Withstandvoltagetest:(1)试验装置应保证试验时膨胀节两端固定和有效密封，波纹管以其自由长度处于直线状态；Testdeviceshallguaranteethatthetestexpansionjointwithbothendsfixedandeffectiveseal,corrugatedpipewithitsfreelengthinstraightline;(2)试验时应缓慢升压，达到规定试验压力后保压至少10min；Testpressureshallbeincreasedslowly,reachedaftertherequiredtestpressureandpressureofatleast10min;(3)试验压力下目视检查膨胀节，膨胀节应无渗漏，结构件应无明显变形，波纹管应无失稳现象；Testpressurevisualinspectionofexpansionjoints,expansionjointsshouldbenoleakage,piecesofthestructureshouldbenoobviousdistortion,corrugatedtubeshouldbenoinstabilityphenomenon;(4)水压试验压力下的最大波距变化率大于15%,即认为波纹管已失稳。Waterpressuretestofmaximumwavepitchchangerateisgreaterthan15%,thatthebellowshasinstability.(5)检查要求：在1.5倍公称压力下，保持10min不发生泄漏，且波纹管应无失稳现象。Examinationrequirements:at1.5timesthenominalpressure,keepingthe10mincannotleak,andthecorrugatedtubeshouldbenoinstabilityphenomenon..疲劳试验：Fatiguetest:(1)膨胀节的疲劳试验应在专用的疲劳试验装置上进行，疲劳试验装置应保证能约束波纹管压力推力与位移反力，并能保证施加的轴向循环位移与波纹管轴线同轴；expansionjointfatiguetestshouldbeinspecialfatiguetestdevice,fatiguetestdevicetoensuretheconstraintbellowspressurethrustforceanddisplacement,andcanguaranteetheappliedaxialcyclicdisplacementandaxisofcoaxialcorrugatedpipe;(2)膨胀节的疲劳试验可在常温下进行，膨胀节在轴向总位移量下，循环次数为设计疲劳寿命的3倍。B16400的疲劳试验循环位移量为31，BS06800的疲劳试验循环位移量为45。循环频率的选择应确保各波均匀变形(一般不大于30次/min)。Expansionjointfatiguetestcanbeperformedatroomtemperature,expansionjointintotalaxialdisplacement,cyclenumberforthedesignoffatiguelife3times.B16400fatiguetestcyclicdisplacementof31,BS06800fatiguetestcyclicdisplacementof45.Cyclicfrequencyselectionshouldensurethatthewaveofuniformdeformation(generallynotmorethan30times/min).(3)检查要求：膨胀节达到循环次数后，应进行压力试验，试验介质为水时，波纹管应无漏水现象；试验介质为气体时，皂泡检查波纹管表面应无漏气现象。Examinationrequirements:expansionjointtocyclenumber,shouldbecarriedoutforwaterpressuretest,thetestmedium,corrugatedtubeshouldbenowaterleakagephenomenon;testmediumisair,soapbubblecheckcorrugatedpipesurfaceshouldbenoleakagephenomenon.七、试验结果：Inseven,thetestresults:.材质报告；materialreport;.外观检查报告；visualinspectionreport;.尺寸检查报告；dimensioninspectionreport;.焊缝检验报告；weldinspectionreport;.刚度检验报告；stiffnessinspectionreport;.压力试验报告；pressuretestreport;.疲劳试验报告。Fatiguetestreport.无锡金波隔振科技有限公司不锈钢波形膨胀节质量;GWS397#GL 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