CBT1152008金属波形膨胀节

1、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/T1153-2008metalwaveformex

2、pansionjointtestitems,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,expans

3、ionjointsduringshouldcarryouttypetesting,specialformulatethetypetest.型号ModelDNdhqtznA数量NumberB1640040042627280.83430.61Bs0680080081333.5350.54444.91二、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(Waveheight),mm；q波距(Wavedistance),mm；t一层材料的厚度(Alayerofmaterialthickness),

4、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205C；Designreferencetemperatureof205DEGc;循环次数均为3000次。Cyclenumberare3000times.四、试验设备

5、：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;3.尺寸检验；dimensionalinspection;焊缝检验；weldinspection;刚度测定；Determinationofstiffness;耐压试验；voltagewithstandte

6、st;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Stainlesssteel0C

7、rl8Ni10TiGB/T4237-1992法兰Flange定位螺杆Positioningscrew碳素结构钢CarbonstructuralsteelQ235-BGB/T700-19882.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；

8、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,adjacenttheweldspacings

9、houldbegreaterthan150mm,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.Moretha

10、n0.5mmplateweldingunfitnessofbuttwelddepressions,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,corrugated

11、surfacetoallowaslightdieindentation,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,carbonste

12、elpartscanadoptthecommonwelding.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

13、量具检查膨胀节的尺寸。要求如下：Withprecisionconformtospecifiedlimitdeviationrequirementsofspecialmeasuringtoolformeasuringandcheckingthesizeofexpansionjoint.Requirementsareasfollows:尺寸按附表要求检查；Sizeaccordingtotheschedulerequirementscheck;多层波纹管管坯的套合间隙应不大于0.8mm；Multilayerbellowstubesleevedgapshouldbelessthan0.8mm;波纹管的

14、波峰、波谷曲率半径的极限偏差为土15%的公称半径；Corrugatedpipe,theradiusofcurvatureofthewavetroughoflimitdeviationof15%nominalradius;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;膨胀节组件长度公差为土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，且不大于卩5mm；Expansio

15、njointassemblylengthtoleranceis+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,there

16、isnocrack,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,theatmospherewillbespecimenplacedverticallyo

17、ntheforcemeasuringmachine.5increments(eachstagecompressiondisplacementaxialtotalcompensationquantity1/5),weremeasuredthreetimes,takethevariousnominaldisplacementunderthemaximumforceofaveragevalue.TheresultsshouldbeinlinewiththeB16400axialstiffnessis915.8N/mm,BS06800axialstiffnessfor558.0N/mm.耐压试验：Wi

18、thstandvoltagetest: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;试验时应缓慢升压，达到规定试验压力后保压至少10min；Testpressureshallbeincreasedslowly,reachedaftertherequiredtestpressureandpressureofat

19、least10min;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;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。Waterpressuretestofmaximumwavepitchchangerat

20、eisgreaterthan15%,thatthebellowshasinstability.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: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

21、轴线同轴；expansionjointfatiguetestshouldbeinspecialfatiguetestdevice,fatiguetestdevicetoensuretheconstraintbellowspressurethrustforceanddisplacement,andcanguaranteetheappliedaxialcyclicdisplacementandaxisofcoaxialcorrugatedpipe;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

22、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.Cyclicfrequencyselectionshouldensurethatt

23、hewaveofuniformdeformation(generallynotmorethan30times/min).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,soapb

24、ubblecheckcorrugatedpipesurfaceshouldbenoleakagephenomenon.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检Director:Inspector:GWS397#GLWuxiJinboVibrationIsolationTechnologiesCo.,LtdQualityInspectionR订货单