排列3和值走势图

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金属缠绕垫片泄漏率与温度对高温密封性能的影响
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金属缠绕垫片泄漏率与温度对高温密封性能的影响

FABUSHIJIAN:2019-02-14

      金属缠绕垫片影响高温密封性能的两大因素:
       一、是不同温度、不同垫片应力等级下介质压力改变对泄漏率的影响。
       二、是在恒定温度、恒定垫片应力时泄漏率随时间的变化情况。

  XIELOULVYUWENDU、DIANPIANCANYUYAJINYINGLIJIJIEZHIYALIDEGUANXIRUXIA:

  XUANDINGWUGEWENDUDENGJI:15、150、300、400、500。C,SIGEJINSHUCHANRAODIANPIANYINGLIDENGJI:40、55、70、85 MPa,SIGEJIEZHIYALIDENGJI:0.5、2.0、3.5、5.0 MPa。CEDINGBUTONGWENDU、BUTONGDIANPIANYINGLI、BUTONGJIEZHIYALIXIADEXIELOULV。SHIYANSHIZAIHENGDINGDEWENDUHEXUANDINGDEDIANPIANYINGLIDENGJIXIA,JIEZHIYALIYOUDIDAOGAOZHUJIJIAZAI,DEDAOTONGYISHIYANWENDU、TONGYIDIANPIANYINGLIDENGJI、BUTONGJIEZHIYALIXIADEXIELOULV。GAIBIANWENDUHEDIANPIANYINGLIDENGJI,ZHONGFUSHANGSHUSHIYAN。TONGGUODUIBUXIUGANGSHIMOCHANRAODIANPIANSUOZUODEDANQIMIFENGSHIYANKEFAXIANXIELOULVSHIJIEZHIYINGLI、DIANPIANCANYUYAJINYINGLIHEWENDUDEHANSHU,QIGUANXISHIKEYONGGONGSHI(3—3)BIAOSHI:

排列3和值走势图  L—ALPTML$6-ⅣL (3-3)

  SHIZHONG: L——XIELOULV,cm3/s;

排列3和值走势图  P——JIEZHIYALI,MPa;

  T——WENDU,℃;

  SG——DIANPIANCANYUYAJINYINGLI,MPa;

  A。、ML、N。——HUIGUIXISHU。

排列3和值走势图  HUIGUIXISHUYOUSHIYANSHUJUJINXINGHUIGUIFENXIQIUDE:A。YIl.20×10~、MLYI4.0×10~、NLYI6.7×10~。

排列3和值走势图  SHIYANWENDU400。CSHIXIELOULVYUJIEZHIYALIHEJINSHUCHANRAODIANPIANCANYUYAJINYINGLIDEGUANXIQUXIAN。YOUGUANXIQUXIANKEZHI,ZAIHENGDINGWENDUXIA,XIELOULVSUIJIEZHIYALIDEZENGDAERZENGDA,SUIDIANPIANYUJINYINGLIDEZENGDAERJIANXIAO。DIANPIANYUJINYINGLI70 MPaSHIXIELOULVYUJIEZHIYALIHEWENDUDEGUANXIQUXIAN。YOUSHIYANKEJIAN,XIELOULVSUIWENDUDESHENGGAOERZENGDA。

排列3和值走势图  DIANPIANYINGLI70 MPaSHIBUTONGWENDUDENGJIXIAXIELOULVSUIJIEZHIYALIDEBIANHUA,SHIYANBIAOMING,XIELOULVHEJIEZHIYALIJIBENCHENGXIANXINGGUANXI,JUYOUNIANXINGLIUTICENGLIUDEYIBANTEXING;XIELOULVHEDIANPIANCANYUYAJINYINGLICHENGFUZHISHUGUANXI,CANYUYAJINYINGLIYUEDA,XIELOULVYUEXIAO;XIELOULVSUIWENDUDESHENGGAOERZENGDA,LIANGZHECHENGZHISHUGUANXI。

  金属缠绕垫片的有效密封宽度

  ZAILUOSHUANYIFALANYIDIANPIANMIFENGLIANJIEZHONG,DIANPIANDEYOUXIAOMIFENGKUANDUSHIJISUANLUOSHUANZAIHEBIBUKESHAODEYIGETEXINGCANSHU,TONGCHANGYIFUHAObBIAOSHI,QIDANWEIYInlnlJI。DIANPIANDEYOUXIAOMIFENGKUANDUYUDIANPIANJIBENMIFENGKUANDU(FUHAOWEIb0;DANWEIWEIram)YOUGUAN。DANGXUANDINGDIANPIANCHICUNHOU,KEANBIAO3—2QUEDINGDIANPIANJIECHUMIANKUANDUN(DANWEIWEIram)HEDIANPIANJIBENMIFENGKUANDUb。,RANHOUANYIXIAGUIDINGQUEDINGDIANPIANYOUXIAOMIFENGKUANDUb:

排列3和值走势图  DANGb0≤6.4 mn3.SHI,b=b0;

  当bo>6.4 mlTl时,6—2.53~/60。

金属环形缠绕垫片
齿形金属缠绕垫片
基本型金属缠绕垫片
基本型金属缠绕垫片
金属环形缠绕垫片
金属环形缠绕垫片


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排列3和值走势图BIAOQIAN:JINSHUCHANRAODIANPIAN JINSHUCHANRAODIANPIANCHANGJIA JINANJIXIE


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