Dab tsi yog cov yam ntxwv ua haujlwm ntawm cov ntsaws ruaj ruaj

Cov yam ntxwv ntawm kev ua haujlwm ntawm lub nplhaib sealing
Ua ntej, kev laus qeeb
Roj hmab thiab qee cov ntaub ntawv, nyob rau hauv siab, uas yog, nyob rau hauv kev ntxhov siab, yuav maj mam muaj hnub nyoog lawm thiab txo elasticity. Yog li ntawd, lub nplhaib sealing muaj qee yam kev pab cuam lub neej, thiab muaj feem xyuam rau qhov zoo ntawm cov khoom sealing. Lub nplhaib sealing lub nplhaib muaj qhov kev laus qeeb qeeb vim qhov me me ntawm precompression tom qab kev teeb tsa.
Qhov thib ob, zoo stability
Vim cov yam ntxwv zoo ntawm lub nplhaib sib khi, yuav tsis muaj kev cuam tshuam tom qab kev teeb tsa; Me deformation tom qab precompression; Thaum cov kua siab hloov pauv, cov duab kuj me me. Sib sau ua ke hu ua lub nplhaib sealing cross-section stability yog qhov zoo.
Peb, zoo sealing
Thaum O-ring siv los ua qhov kawg foob, yuav muaj "kev nqus dej" thaum muaj lub siab loj. Hauv ib qho txiaj ntsig, qhov siab ntawm qhov qis qis ntawm O-ring thiab sab ntawm qhov zawj yog tsim. Thaum lub siab poob siab tshwm sim, cov kua yog tawm nrog lub zog ntawm O-ring. Thaum lub siab poob qis, me ntsis xau zoo li lub xeev "hws" tshwm sim. Thaum siv lub foob pob, vim tias nws muaj nws tus kheej geometric cov yam ntxwv, nws tsis tsim teeb meem tawm hws zoo sib xws.
Hais txog kev ua haujlwm siab, qhov ntsuas siab ntawm O-nplhaib yog 32MPa, thaum lub ntsuas ntsuas ntawm lub nplhaib yog 50MPa.
Plaub, muaj zog extrusion kuj
Thaum siv O-ring, nyob rau hauv lub sij hawm tsis tu ncua los yog lub sij hawm ntev kev poob siab, lub sij hawm dhau los, ib qho me me ntawm cov khoom sib khi yuav raug txiav tawm ntawm qhov qis-siab sab clearance. Qhov tshwm sim no hu ua "extrusion puas". Nyob rau hauv tib txoj kev ua haujlwm no, yog tias siv lub nplhaib sib khi, yuav tsis muaj "kev puas tsuaj rau extrusion".
5. Siab sealing siab
O-ring ua haujlwm siab yog 32MPa, lub nplhaib sib dhos ua haujlwm siab yog 50MPa. Thaum O-ring siv rau radial sealing, thiab lub siab tshaj 10MPa, nws yog ib qho tsim nyog yuav tsum tau ntxiv lub nplhaib nres ntawm sab qis kom tsis txhob muaj kev puas tsuaj rau extrusion. Hauv kev siv cov ntsaws ruaj ruaj, tsis tas yuav teeb lub nplhaib nres.
Rau, nrog interchangeability
Rectangular sealing rings ntawm cov kev qhia tshwj xeeb tuaj yeem ntsia tau rau hauv qhov qub groove ntawm O-ring. Yog li ntawd, nws muaj kev sib hloov zoo hauv O-ring.