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四氟垫片密封性能的检测

发布时间:2021-02-25   点击次数:30次

JIANCESIFUDIANPIANDEMIFENGXINGTONGCHANGYICEDINGQIXIELULVWEIBIAOZHUN,CEDINGQIXIELOULVzNENGPINGDINGSIFUDIANPIANZHILIANGYOULIEDEZHUYAOYIJU

,TANENGZHIJIEFANYINGDIANPIANMIFENGXINGNENG。  ZAIGB/T l2385--1990BIAOZHUNZHONGGUIDINGLEGUANFALANYONGDIANPIANMIFENGXINGNENGDEA、BLIANGZHONGSHI

YANFANGFA。

LIANGZHONGSHIYANFANGFABUJINSHIYONGYUSIFUDIANPIAN,QIEJUNSHIYONGYUSHIMIANXIANGJIAODIANPIAN、JUSIFUYIXIBAOFUDIANPIAN、JINSHUBAOFUDIANPIAN、CHAN

RAOSHIDIANPIANJIJINSHUDIANPIAN。

JINTIANLAIJIANGYIXIAQIZHONGYIZHONGSHIYANFANGFA。 YI. SHOUXIANPEIBEISHIYANZHUANGZHI  1. DIANPIANJIAZAIXITONG—YINGNENGTIGONGGUIDINGDEDIANPIANYUJIN

YINGLI,SHIYANGUOCHENGZHONGDIANPIANZAIHEDEBODONGYINGXIAOYUGUIDINGZHIDE5%,BINGNENGKONGZHIHENGDINGDEJIAZAI、XIEZAISUDU     2. JIEZHIJIDING

XITONG—YINGNENGTIGONGGUIDINGDESHIYANJIEZHIYALI,SHIYANGUOCHENGZHONGJIEZHIYALIBODONGYINGXIAOYUGUIDINGZHIDEo.5 0A;     3. CELOUXI

TONG—CELOUCAIYONGZHUANGTAIFANGCHENGFA。ZAIDIANPIANWAICE、SHANGXIAFALANMIANWENSHEZHIYIGEMIBIDEHUANXINGCELOUKONGQIANG,CELOUKONGQIANGDECHUSHIRONG

JIV。JIRONGJIBIANHUAXIUZHENGXISHUK,YINGJINGYANGEBIAODING,CELOUXITONGFENBIANLVYINGBUDIYU10“cm3,XITONGWUCHAYINGBUDAYU0.5%

。    4. JIJIA—ZHICHENG     5. SHIYANFALAN—CAIYONGGANGXINGMONIPINGMIANFALAN,FALANHOUDUt,YUFALANZHIJINGD,ZHIBIWEItf/

D。≥l/3,FALANCAILIAODEQIANGDUHOU≥500 MPa(50.98 kgf/mm2);MIFENGMIANYINGDUBUXIAOYUHRC40;MIFENGMIANBIAOMIANCUCAO

DURPANYINGZAI5~10 tzmZHIJIAN(XIANGDANGYUMIAO)。

 ER. QICIDADAOSHIYANTIAOJIAN 1. SHIYANWENDU 15~25℃  2. DIANPIANYUJINYINGLI  GENJUDIANPIANDEZHONGLEIXUANZEQUEDING  3. SHIYAN

JIEZHI  99.9%DEDANQI  4. SHIYANJIEZHIYALI  QUGONGCHENGYALIDEl.1BEI 

 开始试验,
操作程序如下  

用丙酮仔细清理法兰密封面,垫片对中安装 
 2. 按(试验条件)规定,对垫片施加预紧应力,达到规定值后保持15min 
3. 标定测漏空腔的初始容积及容积变化修正系数   公式为Vc﹦Vb(P?v-Pb/Pc-P?v) 式中:Vc----侧漏

KONGQIANGDECHUSHIRONGJI,㎝3       Vb----BIAOZHUNRONGQIDETIJI,㎝3        Pb----BIAOZHUNRONGQIDEYALI,Pa(mmH?O)    

   Pc----CELOUKONGQIANGZHONGJIDINGDEYALI,Pa(mmH?O)        P?v----BIAOZHUNRONGQIYUCELOUKONGQIANGLIANTONGHOUDEPINGHENGYALI,

Pa(mmH?O) 4
. 按(试验条件)要求,通入试验介质,当介质压力达到规定之后保持10min 5. 记录测量开始时测量空腔

NEIDEYALIP?、DIANPIANDEYASUOLIANGDg?JICELIANGKONGQIANGDEWENDUT?BINGKAISHIJISHI,2 minHOUJILUCELIANGJIESHUSHICELIANGKONGQIANGNEIDEYA

LIP?、DIANPIANDEYASUOLIANGDg?JICELIANGKONGQIANGDEWENDUT ? SI. XIELOUSHIJISUAN    GONGSHIWEILr=(Tst/Pst)×[ (P﹢Pr) 

/(T﹢Tr)] ×Vc/t×[-(K?×Dg)/Vc+P/(P+ Pr)-T/(T+(T+Tr) ]  

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