Kusindikiza ndi chinthu chofunikira kwambiri m'mafakitale osiyanasiyana, kuwonetsetsa kuti madzi ndi mpweya amakhalabe komanso kuti machitidwe amagwira ntchito bwino.Zida ziwiri zodziwika bwino za mphira zomwe zimagwiritsidwa ntchito pazitsulo zokutira mphira ndi NBR (Nitrile Butadiene Rubber) ndi FKM (Fluorocarbon Rubber).Ngakhale onsewa amapereka zinthu zabwino kwambiri zosindikizira, ali ndi mawonekedwe apadera omwe amawapangitsa kukhala oyenera kugwiritsa ntchito mosiyanasiyana.M'nkhaniyi, tiwona kufanana ndi kusiyana pakati pa mphira wa NBR ndi FKM pankhani ya mbale zokutira zomata.
NBR ndi FKM amagawana zina zomwe zimawapangitsa kukhala ofunika posindikiza mapulogalamu:
Kulimbana ndi Mankhwala: Ma raba onsewa amawonetsa kukana kwamitundumitundu yamafuta, mafuta, ndi zosungunulira.Izi ndizofunikira pakuwonetsetsa kuti mbale zokutidwa ndi sealant zitha kupirira zovuta zomwe angakumane nazo.
Kulimbana ndi Kutentha: Ma raba a NBR ndi FKM amatha kugwira ntchito mkati mwa kutentha kwakukulu, kuwapangitsa kukhala osinthasintha pazinthu zosiyanasiyana zachilengedwe.Amatha kupirira kutentha kwapansi komanso kutentha, kuonetsetsa kuti ntchito yosindikiza yodalirika ikugwira ntchito.
Ngakhale zikufanana, rabara ya NBR ndi FKM ili ndi mawonekedwe apadera omwe amawapangitsa kukhala oyenera pazosiyana:
Mpira wa NBR:
Kukaniza Mafuta: NBR imadziwika chifukwa chokana kwambiri mafuta, makamaka motsutsana ndi mafuta amchere ndi mafuta amafuta.Izi zimapangitsa kukhala chisankho choyenera kwa mapulogalamu omwe akuyembekezeka kukhudzana ndi mitundu iyi yamafuta.
Kulimbana ndi Kutentha: Ngakhale kuti NBR imateteza bwino kutentha, imatha kuwonongeka pakapita nthawi ikakumana ndi kutentha kwambiri.Choncho, ndizoyenera kwambiri kwa mapulogalamu omwe ali ndi zofunikira za kutentha.
Kugwiritsa Ntchito Ndalama: NBR nthawi zambiri imakhala yotsika mtengo poyerekeza ndi FKM, zomwe zimapangitsa kukhala chisankho chodziwika bwino pama projekiti osatengera mtengo pomwe ikupereka magwiridwe antchito abwino.
Kukaniza Kukalamba: Kukana kukalamba kwa NBR ndikocheperako poyerekeza ndi FKM, makamaka m'malo otentha komanso okhala ndi okosijeni, zomwe zingachepetse moyo wake wautali pamapulogalamu ena.
Mpira wa FKM:
Kukaniza Kwa Chemical: FKM rabara imapereka kukana kwapadera kwa ma asidi amphamvu, maziko, ndi ma oxidizer, ndikupangitsa kuti ikhale chisankho chokonda kugwiritsa ntchito mankhwala owopsa.
Kukana Kutentha: FKM imapambana m'malo otentha kwambiri, imasunga umphumphu wake ndi kusindikiza katundu wake ngakhale pa kutentha kokwera, mpaka madigiri 150 Celsius.
Kukana Kukalamba: FKM imawonetsa kukana kukalamba, kuwonetsetsa kulimba kwanthawi yayitali komanso kudalirika pamikhalidwe yovuta kwambiri.
Mtengo: FKM nthawi zambiri imakhala yokwera mtengo kuposa NBR, koma magwiridwe ake apamwamba amavomereza kugwiritsidwa ntchito kwake pamapulogalamu ovuta komanso ovuta.
Kusankha Chida Choyenera cha Mbale Zokutidwa ndi Sealant:
Posankha pakati pa NBR ndi FKM ya mbale zokutidwa ndi zosindikizira, izi ziyenera kuganiziridwa:
Dziwani mtundu wamadzimadzi kapena mpweya womwe wosindikizira angakumane nawo.NBR ndiyoyenera kumafuta amchere, pomwe FKM imakondedwa ndi mankhwala aukali.
Zofunikira pa Kutentha: Onani kutentha kwa ntchitoyo.FKM ndiyoyenera kumadera otentha kwambiri, pomwe NBR ili yabwinoko pakutentha koyenera.
Kuganizira za Mtengo: Unikani bajeti ya polojekiti.NBR imapereka yankho lotsika mtengo popanda kusokoneza magwiridwe antchito, pomwe FKM imapereka magwiridwe antchito apamwamba pamtengo wokwera.
NBR ndi FKM mphira onse ali ndi malo awo mu dziko la mphira yokutidwa zitsulo pepala.Kumvetsetsa kufanana kwawo ndi kusiyana kwawo kumalola mainjiniya ndi opanga kupanga zisankho zodziwikiratu potengera zomwe akufuna pakugwiritsa ntchito kwawo.Poganizira zinthu monga mtundu wa media, kutentha, ndi mtengo, zinthu za rabara zoyenera zitha kusankhidwa kuti zitsimikizire kusindikiza kodalirika komanso kuchita bwino m'mafakitale osiyanasiyana.
Nthawi yotumiza: Apr-02-2024