Lub cav gaskets ua lub luag haujlwm tseem ceeb hauv lub tshuab tsav tsheb, ua kom muaj qhov sib txawv ntawm lub cav, ua kom nruj thiab tiv thaiv cov kua thiab cov pa tawm. Xaiv cov khoom siv lub cav gasket yog qhov tseem ceeb sib npaug rau kev ua haujlwm ntawm lub cav thiab kev ntseeg siab.
Kab lus no yuav dhia mus rau hauv cov khoom siv rau lub cav gaskets, nrog rau cov khoom siv sib xws thiab lawv cov khoom, los pab peb txiav txim siab xaiv.
Hom hom cav gasket khoom
Ua ntej xaiv lub cav gasket khoom, cia peb nkag siab ob peb hom khoom siv:
1. Hlau gasket
Hlau gaskets feem ntau yog ua los ntawm txhuas lossis hlau thiab muaj cua sov zoo thiab siab ua haujlwm. Lawv tsim nyog rau qhov kub thiab txias ntawm lub cav qhov chaw, xws li lub tog raj kheej taub hau gaskets thiab crankcase gaskets rau lub cav tsheb.
2. Fiber gasket
Fiber gaskets feem ntau yog ua los ntawm cov khoom siv fiber ntau xws li ntawv lossis mica thiab tau kho saum npoo los txhim kho qhov kub thiab txias thiab sealing kev ua tau zoo. Lawv feem ntau yog siv rau hauv cov khoom siv hluav taws xob qis xws li lub tog raj kheej taub hau thiab cov khoom siv manifolds.
3. Roj hmab gasket
Roj hmab gaskets feem ntau yog ua los ntawm cov khoom siv roj hmab xws li nitrile roj hmab (NBR), fluoroelastomer (FKM) lossis silicone roj hmab (VMQ). Lawv muaj zoo elasticity thiab sealing zog thiab yog haum rau ntau yam kub thiab siab tej yam kev mob.
4. Composite gasket
Composite gaskets yog kev sib xyaw ntawm cov khoom sib txawv uas sib xyaw ua ke zoo ntawm lawv cov khoom siv. Piv txwv li, kev sib xyaw ua ke ntawm cov hlau nrog roj hmab lossis fiber ntau tuaj yeem muab qhov kub thiab txias thiab sealing zog.
Kev xaiv yam khoom siv rau lub cav gasket
Cov hauv qab no yuav tsum tau txiav txim siab thaum xaiv cov khoom siv cav gasket zoo:
1. Kub
Lub cav gaskets yuav tsum muaj peev xwm tiv taus qhov kub thiab txias. Yog li ntawd, qhov kub thiab txias tsis kam yog ib qho tseem ceeb ntawm kev xaiv cov khoom siv. Hlau gaskets thiab fluoroelastomer (FKM) gaskets muaj qhov kub thiab txias tsis kam thiab tsim nyog rau kev siv cav kub kub.
2. Kev nyuaj siab
Lub cav gaskets yuav tsum muaj peev xwm tiv taus lub siab hauv lub cav. Vim nws lub zog siab thiab nruj, cov hlau gaskets tuaj yeem muab cov khoom sib khi zoo thiab tsim nyog rau qhov chaw muaj kev kub ntxhov.
3. Tshuaj tiv thaiv
Cov tshuaj xws li roj, coolants thiab additives tej zaum yuav muaj nyob rau hauv lub cav lubricants thiab coolants. Yog li ntawd, lub cav gaskets yuav tsum muaj cov tshuaj tiv thaiv zoo los tiv thaiv cov tshuaj corrosion thiab kua nkag. Roj hmab gaskets (xws li roj hmab nitrile) thiab fluoroelastomer (FKM) gaskets feem ntau muaj cov tshuaj tiv thaiv zoo.
4. sealing kev ua tau zoo
Ib qho ntawm lub luag haujlwm tseem ceeb ntawm lub cav gaskets yog muab lub foob zoo. Cov khoom siv yuav tsum muaj qhov zoo elasticity thiab compression zog los xyuas kom meej tias qhov nruj yog tswj xyuas nyob rau hauv kev ua haujlwm sib txawv. Roj hmab gaskets thiab fiber ntau gaskets feem ntau muaj kev sib khi zoo dua.
5. Tus nqi
Tus nqi kuj yog ib qho tseem ceeb rau kev txiav txim siab thaum xaiv lub cav gasket khoom. Tus nqi ntawm cov khoom sib txawv txawv, thiab cov nqi tsim khoom thiab kev teeb tsa kuj yuav tsum tau txiav txim siab. Hlau gaskets feem ntau kim dua, thaum fiber ntau gaskets thiab roj hmab gaskets kuj pheej yig.
Muaj feem xyuam rau cov khoom sib txawv
Raws li cov yam ntxwv ntawm cov khoom sib txawv, cov khoom siv lub cav uas tsim nyog tuaj yeem xaiv tau hauv cov xwm txheej hauv qab no:
1. Qhov kub thiab txias ib puag ncig
Rau qhov kub thiab txias ib puag ncig, xws li lub tog raj kheej taub hau thiab crankcases ntawm automotive engines, hlau gaskets yog ib qho kev xaiv. Hlau gaskets muaj cua sov thiab siab ua haujlwm zoo, thiab tuaj yeem ua haujlwm zoo thiab tiv taus qhov kub thiab txias.
2. Tsis tshua muaj kub thiab tsis tshua muaj siab ib puag ncig
Rau qhov kub thiab txias, tsis tshua muaj siab ib puag ncig xws li lub tog raj kheej taub hau thiab cov khoom noj khoom haus, fiber ntau gaskets yog ib qho kev xaiv. Fiber gaskets muaj cov khoom sib khi zoo thiab muaj kev lag luam zoo.
3. Chemical corrosion ib puag ncig
Rau ib puag ncig uas muaj tshuaj lom neeg, xws li lub cav lubricants thiab coolants, roj hmab gaskets yog ib qho kev xaiv. Nitrile roj hmab thiab fluoroelastomer muaj cov tshuaj tiv thaiv zoo thiab tuaj yeem tiv taus cov tshuaj corrosion thiab kua nkag.
4. Kev ua haujlwm tau zoo
Composite gaskets yog ib qho kev xaiv zoo tshaj plaws rau cov cheeb tsam uas kub siab, siab siab, tshuaj tiv thaiv thiab sealing kev ua tau zoo yog kev sib xyaw ua ke. Composite gaskets tuaj yeem muab cov txiaj ntsig ntawm cov khoom sib txawv los muab kev ua haujlwm zoo dua thiab kev ntseeg siab.
Xaus
Xaiv cov khoom siv lub cav gasket yog qhov tseem ceeb rau kev ua haujlwm ntawm lub cav thiab kev ntseeg siab. Thaum xaiv lub cav gasket khoom, yam xws li kub, siab, tshuaj tiv thaiv, sealing kev ua tau zoo thiab tus nqi yuav tsum tau txiav txim siab. Feem ntau ntawm cov khoom siv cav gasket muaj xws li hlau gaskets, fiber ntau gaskets,