1.Qhov chaw ntawm lub sealing nto:Cov duab thiab qhov roughness ntawm lub sealing nto muaj qee yam cuam tshuam rau kev ua haujlwm sealing, thiab qhov chaw du yog qhov tsim nyog rau kev sib khi. Mos gasket tsis rhiab rau saum npoo vim nws yooj yim rau deform, thaum nyuaj gasket muaj kev cuam tshuam zoo rau saum npoo.
2. Sib cuag dav ntawm sealing nto:qhov ntau dua qhov sib cuag dav ntawm sealing nto thiabgasketlos yog packing, txoj kev ntev ntawm cov kua xau thiab qhov ntau dua qhov poob ntawm cov dej tsis kam, uas yog qhov zoo rau kev sib khi. Tab sis nyob rau hauv tib lub zog nias, qhov loj ntawm qhov sib cuag yog, qhov me me lub sealing siab yuav. Yog li ntawd, qhov tsim nyog sib cuag yuav tsum tau pom raws li cov khoom ntawm lub foob.
3. Cov khoom ua kua dej:Lub viscosity ntawm cov kua muaj kev cuam tshuam zoo rau kev sib khi ua haujlwm ntawm cov ntim thiab gasket. Cov kua dej uas muaj viscosity siab yog yooj yim rau seal vim nws cov dej tsis zoo. Lub viscosity ntawm cov kua yog ntau dua li cov roj, yog li cov kua yog yooj yim rau seal dua roj. Saturated steam yog yooj yim dua rau kev sib khi dua li cov chav superheated vim tias nws tuaj yeem ua kom cov tee dej thiab thaiv cov dej ntws tawm ntawm qhov chaw sib khi. Qhov loj dua qhov ntim ntawm cov kua dej, qhov yooj yim dua nws yuav tsum tau thaiv los ntawm qhov nqaim sealing qhov sib txawv, yog li nws yooj yim rau sealing. Lub wettability ntawm cov kua rau cov khoom foob kuj muaj qee yam cuam tshuam rau lub foob. Cov kua uas yooj yim rau infiltrate yog ib qho yooj yim to los vim yog capillary nkaus ntawm cov micropores nyob rau hauv lub gasket thiab packing.
4. Dej kub:Qhov ntsuas kub cuam tshuam rau viscosity ntawm cov kua, yog li cuam tshuam rau kev sib khi ua haujlwm. Nrog rau qhov kub thiab txias, cov viscosity ntawm cov kua txo qis thiab cov roj nce ntxiv. Ntawm qhov tod tes, qhov kev hloov ntawm qhov kub thiab txias feem ntau ua rau deformation ntawm lub sealing Cheebtsam, uas yog ib qho yooj yim ua rau to.
5. Cov khoom ntawm gasket thiab packing:cov khoom muag yog ib qho yooj yim los tsim elastic los yog yas deformation nyob rau hauv qhov kev txiav txim ntawm preload, yog li thaiv cov channel ntawm cov kua dej, uas yog conducive rau sealing; Txawm li cas los xij, cov khoom muag muag feem ntau tsis tuaj yeem tiv taus cov kua dej siab. Kev tiv thaiv corrosion, kub tsis kam, compactness thiab hydrophilicity ntawm cov ntaub ntawv sealing muaj qee yam cuam tshuam rau kev sib khi.
6. Sealing nto tshwj xeeb siab:lub zog ib txwm nyob rau hauv chav sib cuag ntawm qhov chaw sealing yog hu ua sealing tshwj xeeb siab. Qhov loj ntawm sealing nto qhov tshwj xeeb siab yog qhov tseem ceeb cuam tshuam rau kev ua haujlwm sealing ntawm gasket lossis ntim. Feem ntau, lub siab tshwj xeeb yog tsim rau ntawm qhov chaw sib khi los ntawm kev siv lub zog nruj ua ntej kom deform lub foob, thiaj li txo lossis tshem tawm qhov sib txawv ntawm qhov sib txuas ntawm qhov sib txuas thiab tiv thaiv cov kua dej los ntawm kev ua kom tiav lub hom phiaj ntawm sealing. Nws yuav tsum tau taw qhia tias cov nyhuv ntawm cov kua siab yuav hloov lub siab tshwj xeeb ntawm sealing nto. Txawm hais tias qhov nce ntawm qhov tshwj xeeb siab ntawm qhov sealing nto yog qhov zoo rau kev sib khi, nws raug txwv los ntawm lub zog extrusion ntawm cov khoom sealing; rau lub foob dynamic, qhov nce ntawm qhov tshwj xeeb siab ntawm lub sealing nto yuav ua rau qhov sib txuam nce ntawm kev sib txhuam tsis kam.
7. Kev cuam tshuam ntawm cov xwm txheej sab nraud:Kev co ntawm cov kav dej, deformation ntawm cov khoom sib txuas, kev sib txawv ntawm qhov chaw teeb tsa thiab lwm yam laj thawj yuav ua rau muaj zog ntxiv ntawm cov ntsaws ruaj ruaj, uas yuav muaj kev cuam tshuam tsis zoo rau cov ntsaws ruaj ruaj. Tshwj xeeb tshaj yog kev vibration yuav ua rau compression quab yuam ntawm lub sealing qhov chaw hloov raws sij hawm, thiab ua rau cov bolts txuas xoob, ua rau lub foob tsis ua hauj lwm. Qhov ua rau kev vibration tuaj yeem yog sab nraud lossis sab hauv. Txhawm rau ua kom lub foob txhim khu kev qha, peb yuav tsum xav txog cov ntsiab lus saum toj no, thiab kev tsim thiab xaiv cov sealing gasket thiab ntim khoom tseem ceeb heev.
Post lub sij hawm: Feb-23-2022