Ho na le mefuta e mengata ea li-valve, empa mosebetsi oa motheo o tšoana, ke hore, ho hokahanya kapa ho khaola phallo e bohareng.Ka hona, bothata ba ho tiisa valve bo hlahelletse haholo.
Ho etsa bonnete ba hore valve e ka khaola phallo e bohareng hantle ntle le ho lutla, hoa hlokahala ho etsa bonnete ba hore valve ea valve e tiile.Ho na le mabaka a mangata a ho lutla ha li-valve, ho kenyelletsa le moralo o sa utloahaleng oa sebopeho, sebaka se sa sebetseng sa ho tiisa sekoaelo, likarolo tse hlephileng tse tiisang, ho lokoloha lipakeng tsa 'mele oa valve le bonnet, joalo-joalo.Hantle, ka hona ho baka bothata ba ho lutla.Ka hona, theknoloji ea ho tiisa li-valve ke theknoloji ea bohlokoa e amanang le ts'ebetso ea li-valve le boleng, 'me e hloka lipatlisiso tse hlophisitsoeng le tse tebileng.
Lisebelisoa tsa ho tiisa tse sebelisoang hangata bakeng sa li-valve li kenyelletsa mefuta e latelang:
1. NBR
Ho hanyetsa oli e ntle haholo, khanyetso e phahameng ea ho roala, ho hanyetsa mocheso o motle, ho khomarela ka matla.Mefokolo ea eona ke ho se tsitse ha mocheso o tlase, ho hanyetsa ozone, thepa ea motlakase e fokolang, le elasticity e tlase hanyane.
2. EPDM
Ntho ea bohlokoa ka ho fetisisa ea EPDM ke khanyetso ea eona e phahameng ea oxidation, ho hanyetsa ozone le ho hanyetsa ha kutu.Kaha EPDM ke ea lelapa la polyolefin, e na le litšobotsi tse ntle tsa vulcanization.
3. PTFE
PTFE e na le khanyetso e matla ea lik'hemik'hale, e hanyetsanang le oli e ngata le li-solvents (ntle le li-ketone le li-ester), ho hanyetsa boemo ba leholimo bo botle le ho hanyetsa ozone, empa ho hanyetsa serame ho futsanehile.
4. Tšepe e lahliloeng
Ela hloko: Cast tšepe sebelisoa bakeng sa metsi, khase le oli mecha ea litaba le mocheso oa≤100°C le khatello ea lebitso la≤1.6 mpa.
5. Alloy e thehiloeng ho nickel
Tlhokomeliso: Li-alloys tse thehiloeng ho nickel li sebelisetsoa liphaephe tse nang le mocheso oa -70 ~ 150°C le khatello ea boenjiniere PN≤20.5mpa.
6. Motsoako oa koporo
Alloy ea koporo e na le khanyetso e ntle ea ho apara 'me e loketse liphaephe tsa metsi le mouoane ka mocheso≤200℃le khatello ea lebitso PN≤1.6 mpa.
Nako ea poso: Dec-02-2022