Ho tiisa valve ke karolo ea bohlokoa ea valve eohle, sepheo sa eona se seholo ke ho thibela ho lutla,belofoSetulo sa ho tiisa se boetse se bitsoa selikalikoe sa ho tiisa, ke mokhatlo o amanang ka kotloloho le seaplane ho phaephe le ho thibela seaplane ho phalla.Ha valve e sebelisoa, ho na le mecha ea phatlalatso ea liphaephe, joalo ka mokelikeli, khase, oli, lisebelisoa tse senyang, joalo-joalo, 'me litiiso tsa li-valve tse fapaneng li sebelisoa libakeng tse fapaneng' me li ka ikamahanya le maemo a fapaneng.
TWSVphelae u hopotsa hore lisebelisoa tsa li-valve li ka aroloa ka mekhahlelo e 'meli, e leng lisebelisoa tsa tšepe le lisebelisoa tse seng tsa tšepe.Litiiso tseo e seng tsa tšepe hangata li sebelisoa liphaepheng ka mocheso o tloaelehileng le khatello, ha litiiso tsa tšepe li na le mefuta e mengata ea lisebelisoa 'me li ka sebelisoa mochesong o phahameng.khatello e phahameng.
Rabara ea maiketsetso e molemo ho feta rabara ea tlhaho mabapi le ho hanyetsa oli, ho hanyetsa mocheso le ho hanyetsa ho bola.Ka kakaretso, mocheso o sebetsang oa rabara ea maiketsetso ke t≤150°C, rabara ea tlhaho ke t≤60°C, 'me rabara e sebelisetsoa ho tiisa li-valve tsa lefats'e, li-valve tsa heke, li-valve tsa diaphragm, li-valve tsa serurubele, li-valve tsa ho hlahloba, li-valve tsa pinch le li-valve tse ling tse nang le khatello ea kelello ea PN.≤1MPa.
2. Nylon
Nylon e na le litšobotsi tsa coefficient e nyane ea khohlano le khanyetso e ntle ea kutu.Nylon e sebelisoa haholo bakeng sa li-valve tsa bolo le li-valve tsa globe tse nang le mocheso oa t≤90°C le khatello ea lebitso PN≤32MPa.
PTFE e sebelisoa haholo bakeng sa li-valve tsa globe, li-valve tsa heke, li-valve tsa bolo, joalo-joalo ka mocheso oa t.≤232°C le khatello ea lebitso PN≤6.4MPa.
4. Tšepe e lahliloeng
Cast iron e sebelisoa bakeng sa li-valve tsa heke, li-valve tsa globe, li-valve tsa plug, joalo-joalo bakeng sa mocheso oa t≤100°C, khatello ea lebitso PN≤1.6MPa, khase le oli.
5. motsoako oa Babbitt
Babbitt alloy e sebelisoa bakeng sa valve ea ammonia ea lefats'e ka mocheso oa T-70 ~ 150℃le khatello ea lebitso PN≤2.5MPa.
6. Motsoako oa koporo
Lisebelisoa tse sebelisoang ka tloaelo bakeng sa li-alloys tsa koporo ke 6-6-3 tin bronze le 58-2-2 koporo ea manganese.Alloy ea koporo e na le khanyetso e ntle ea ho apara 'me e loketse metsi le mouoane ka mocheso oa t≤200℃le khatello ea lebitso PN≤1.6MPa.Hangata e sebelisoa ho li-valve tsa heke, li-valve tsa globe, li-valve tsa ho hlahloba, li-valve tsa plug, joalo-joalo.
7. Chrome tšepe e sa hloekang
Limaraka tse sebelisoang hangata tsa tšepe e sa jeleng ea chromium ke 2Cr13 le 3Cr13, tse tingoeng le ho halefa, 'me li na le khanyetso e ntle ea kutu.Hangata e sebelisoa holim'a li-valve tsa metsi, mouoane le petroleum ka mocheso oa t≤450℃le khatello ea lebitso PN≤32MPa.
8. Chrome-nickel-titanium tšepe e sa hloekang
Mokhahlelo o sebelisoang hangata oa tšepe e sa hloekang ea chromium-nickel-titanium ke 1Cr18Ni9ti, e nang le khanyetso e ntle ea kutu, ho hanyetsa khoholeho le ho hanyetsa mocheso.E loketse bakeng sa mouoane le mecha e meng e nang le mocheso oa t≤600°C le khatello ea lebitso PN≤6.4MPa, 'me e sebelisetsoa li-valve tsa globe, li-valve tsa bolo, joalo-joalo.
9. Nitriding tšepe
Mofuta o sebelisoang hangata oa tšepe ea nitriding ke 38CrMoAlA, e nang le khanyetso e ntle ea kutu le khanyetso ka mor'a kalafo ea carburizing.Hangata e sebelisoa li-valve tsa heke ea seteishene sa matla ka mocheso oa t≤540℃le khatello ea lebitso PN≤10MPa.
10. Boronizing
Boronizing e sebetsana ka ho toba le sebaka sa ho tiisa ho tloha linthong tsa 'mele oa valve kapa disc disc, ebe e etsa phekolo ea boronizing holim'a metsi.Sebaka sa ho tiisa se na le khanyetso e ntle ea ho apara.Bakeng sa valafo ea ho putlama ha seteishene sa motlakase.
Ha valve e sebelisoa, lintlha tse lokelang ho tsotelloa ke tse latelang:
1. Ts'ebetso ea tiiso ea valve e lokela ho lekoa ho netefatsa hore e sebetsa hantle.
2. Hlahloba hore na sebaka sa ho tiisa sa valve se apere, 'me u se lokise kapa u se nke sebaka ho ea ka boemo.
Nako ea poso: Jan-04-2023