Selelekela
O-mahelebapala karolo ea bohlokoa ho thibeleng ho lutla ha metsi kapa khase lits'ebetsong tse kang lienjine tsa makoloi, lisebelisoa tsa haeteroliki le lisebelisoa tsa lapeng. Leha ho le joalo, ts'ebetso ea ho tiisa le bophelo ba ts'ebeletso ea O{1}}rileng ha ea itšetleha feela ka boholo ba sebopeho sa eona empa hape, mohlomong ho bohlokoa le ho feta, le thepa ea eona. Lisebelisoa tse fapaneng tsa rabara kapa polymer li na le likhato tse fapaneng tsa ho hanyetsa mocheso, ho hanyetsa oli, le khanyetso ea kutu ea lik'hemik'hale. Sengoliloeng sena se tla hlahisa lisebelisoa tse sebelisoang ho etsa O{4}}rings le litšobotsi tsa lisebelisoa tse fapaneng, ho u thusa ho khetha O{5}}ring e loketseng haholo ho latela tikoloho ea hau ea ts'ebeliso.
Sesebediswa se Tlwaelehileng ho Sebediswa Bakeng sa O-Ring ke Efe?
Hobaneng O-Ring e Sebelisa Lielastomer ho E-na le Lisebelisuoa tse thata
O-mahele hangata a entsoe ka li-elastomer. Li itšetlehile ka deformation ea elastic ho tlatsa likheo tse nyenyane sebakeng se koalang, ho etsa khatello ea pele ea ho kopana. Ha khatello e sebelisoa ke mochine oa tsamaiso, ho holofala ha elastomer ho lumella O{3}}ring hore e hatellehe ho feta, e hlahise "{4}}matla a ho tiisa" ho matlafatsa matla a ho tiisa. Ka nako e ts'oanang, ts'ebetso e phahameng ea ho tiea le e tlaase ea compression sete ea elastomer e e lumella ho boloka sebopeho sa eona le ts'ebetso ea ho tiisa ka mor'a khatello ea khafetsa le khatello ea maikutlo. Tiiso ena e matla ea deformation e ke ke ea finyelloa haeba ho sebelisoa thepa e thata.
Lisebelisuoa tse Tloaelehileng tsa Elastomer bakeng sa O{0}}Ring
Ts'ebetso ea O{0}}ring e itšetlehile haholo ka sebopeho le lik'hemik'hale tsa elastomer e sebelisitsoeng. Mefuta e fapaneng ea lisebelisoa tsa rabara e bonts'a likhato tse fapaneng tsa ho hanyetsa mocheso, k'hemik'hale ea lik'hemik'hale, compression set, le matla a mochine.
Nitrile Rubber (NBR)
Thepa ea Lintho
Nitrile butadiene rabara (NBR) ke copolymer ea butadiene le acrylonitrile. Karolelano ea acrylonitrile e ka fapana ho latela kopo; litaba tse phahameng tsa acrylonitrile li fella ka ho hanyetsa oli le mafura hantle. E na le mefuta e mengata ea boima ba 'mele, ho tloha 40-90 Shore A, 'me e ka sebetsa libakeng ho tloha ho -40℃ho isa ho +120℃. Ka lebaka la ho hanyetsa oli, ho hanyetsa mafura, le thepa e ntle ea mochini, e sebelisoa haholo indastering ea likoloi, oli le khase le lik'hemik'hale.
Mefokolo
Le hoja NBR e bontša khanyetso e ntle ea lik'hemik'hale tse ngata le tharollo, mefokolo e meng e lokela ho hlokomeloa. NBR e lokela ho qojoa hole le ozone, khanya ea ultraviolet, li-oxidant tse matla, -maoso a nkhang hamonate, le{2}}litlhapi tse seng polar. Hape ha ea lokela ho pepesehela mocheso o phahameng ka nako e telele, kaha e atisa ho tsofala.
Rabara ea Fluorocarbon (FKM/Viton)
Thepa ea Lintho
Fluorocarbon rabara (FKM) ke{0}}sebelisoa sa tšebetso e phahameng. O-lisebelisoa tse entsoeng ka eona li na le botsitso bo botle ba lik'hemik'hale le{3}}tse hanyetsanang le mocheso o phahameng (ho fihla ho likhato tse +200), lioli tse hananang, libeso, lihlapolli le lik'hemik'hale tse fapaneng tse senyang. E sebelisoa hangata lienjineng tsa likoloi, lits'ebetsong tsa sefofane le lisebelisoa tsa lik'hemik'hale.
Mefokolo
Ka kakaretso, ts'ebetso ea eona ea{0}}mocheso e tlase e ea fokotseha ka ho eketseha ha fluorine. FKM e nang le fluorinated haholo e fetoha e brittle mochesong o tlase, e etsa hore e se lokele lits'ebetso tse hlokang -ea elasticity e tlase le ho se mamelle tikoloho e matla ea alkaline.
Rabara ea Silicone (VMQ)
Thepa ea Lintho
Masale a O{0}}ea rabara ea silicone a khona ho tenyetseha habonolo le mocheso o pharalletseng. Ka lebaka la thepa ea tsona e sa nkheng le{2}e se nang chefo, e sebelisoa haholo ho-makala a lijo, a bongaka le a elektroniki.
Mefokolo
Silicone e na le matla a tlase a mochini le khanyetso ea abrasion, e etsang hore e se tšoanelehe bakeng sa lits'ebetso tse matla tsa ho tiisa tse atisang ho koaheloa, tse lebisang ho lutla. Ho feta moo, ho hanyetsa ha eona ho mouoane, li-acids, alkalis le oli ho fokotsehile.
Ethylene Propylene Rubber (EPDM)
Thepa ea Lintho
EPDM e bonts'a khanyetso e ntle ea metsi, mouoane, leseli la ultraviolet, le ozone, 'me e boloka elasticity ea eona ka har'a mocheso oa likhato tse -50 ho isa ho +150℃. Ho feta moo, thepa ea eona ea ho kenya motlakase e ntle haholo. Hangata e fumanoa lisebelisoa tse kang tsamaiso ea metsi a chesang le liphaephe tsa mouoane.
Mefokolo
Leha ho le joalo, EPDM ha ea lokela libaka tsa oli{{0}e thehiloeng ho oli le mafura. Ho kopana le mecha ena ea litaba ho tla etsa hore e ruruhe, e be bonolo, 'me e lahleheloe ke elasticity, e qetellang e lebisa ho hlōleha ha tiiso.
O{0}}Ring e ntlafetseng: Mefuta e Kentsoeng le e Koaheletsoeng
Lits'ebetsong tse ngata tse fetelletseng kapa tse khethehileng, liring tse tloaelehileng tsa O{0}}elastomer li kanna tsa se fihlelle litlhokahalo. Ho ntlafatsa O-ring ea ho sebetsa, encapsulation le coating li sebelisoa ho theha O{3}}rings tse kopaneng kapa tse sebetsang ho lumellana le mefuta e mengata ea lits'ebetso.
Mehele e kentsoeng ea O{0}}
Li-encapsulated O-rings li na le bokahare bo tsitsitseng (hangata silicone kapa fluororubber) le bokantle bo kentsoeng ka botlalo,{1}}bo manganga (joaloka PTFE kapa FEP). Karolo e ka hare e iketlang e fana ka botsitso bo hlokehang bakeng sa ho tiisa-tiiso, ha karolo e ka ntle e sireletsa khahlanong le kutu ea lik'hemik'hale, mocheso o phahameng le khohlano. oa ZhonggaoFEP E Koahetse Silicon O Ringe kopanya elasticity ea silicone le inertness ea lik'hemik'hale le ho hanyetsa mocheso oa FEP, ho etsa hore e tšoanele litlhoko tsa ho tiisa libakeng tse thata.
Mehele e tlositsoeng O{0}}
Masale a koahetsoeng ka O{0}}ke litiiso tse nang le mokhabiso o khethehileng o kentsoeng bokaholimong ba lesale la O{0}} la elastomer. Lera le ntlafatsa ho sekama ha lik'hemik'hale, le fokotsa ho hohlana, 'me le etsa hore ho se ke ha e-ba bonolo ha le ntse le boloka{2}}mohatlana le ho tiea ha karolo e ka hare-hare. Masale a tlotsitsoeng a O{4}} a loketse bakeng sa ho koala lisebelisoa tse hlokang ho hohlana ha lik'hemik'hale tse fokolang, joalo ka li-hydraulic pistons, rotary shafts, lijo kapa lisebelisoa tsa bongaka.
Qetello
O-lisebelisoa li entsoe ka li-elastomer tse fapaneng, 'me khetho e nepahetseng ea thepa e tiisa tiiso e ntle. Ka linako tse ling, li-elastomer tse tloaelehileng ha li khone ho sebetsana le boemo bona, 'me ho ka sebelisoa{2}}lisebelisoa tse phahameng tsa O{3}} tse nang le lirafshoa kapa likoahelo. Ho khetha thepa e nepahetseng bakeng sa selikalikoe sa O{5}}ho netefatsa ts'ebetso e tiisitsoeng, bophelo ba ts'ebeletso, le polokeho.
Zhonggao, joalo ka moetsi le morekisi oa O{0}}e tloahelehileng oa tloaelo China, ha e fane ka{1}}lisebelisoa tsa O{2}} tse phahameng feela tse entsoeng ka li-elastomer tse tloaelehileng, empa hape e fana ka khetho ea boholo, sebopeho, le ts'ebetso ho fihlela litlhoko tsa hau tse ikhethileng.Iteanye le ronabakeng sa litharollo tsa O{0}} tsa ring tse etselitsoeng kopo ea hau.
