Lisebelisoa tsa ho koala li-valve ke karolo ea bohlokoa ea ho koala li-valve. Lisebelisoa tsa ho koala li-valve ke life? Rea tseba hore lisebelisoa tsa ho tiisa li-valve li arotsoe ka mekhahlelo e 'meli: tšepe le e seng tšepe. E latelang ke kenyelletso e khutšoanyane ea maemo a tšebeliso ea lisebelisoa tse sa tšoaneng tsa ho tiisa, hammoho le mefuta e tloaelehileng ea li-valve.
1. Rabara ea maiketsetso
Lintho tse akaretsang tsa rabara ea maiketsetso tse kang ho hanyetsa oli, ho hanyetsa mocheso le ho hanyetsa ho bola li molemo ho feta tsa rabara ea tlhaho. Ka kakaretso, mocheso oa tšebeliso ea rabara ea maiketsetso ke t≤150℃, 'me mocheso oa rabara ea tlhaho ke t≤60℃.Rubber e sebelisetsoa ho tiisa li-valve tsa globe,rabara e lutseng valve ea hekeli-valve tsa diaphragm,rubber lutseng serurubele valve, rubber lutseng swing hlahloba valve (hlahloba li-valve), li-valve tsa pinch le li-valve tse ling tse nang le khatello ea lebitso 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℃ le khatello ea lebitso PN≤32MPa.
3. PTFE
PTFE e sebelisoa haholo bakeng sa li-valve tsa lefats'e,li-valve tsa heke, li-valve tsa bolo, joalo-joalo ka mocheso t≤232℃ le khatello ea lebitso PN≤6.4MPa.
4. Tšepe e lahliloeng
Tšepe ea tšepe e sebelisoa bakeng sabelofo ea heke, valve ea globe, valve ea plug, joalo-joalo bakeng sa mocheso t≤100℃, khatello ea lebitso la PN≤1.6MPa, khase le oli.
5. motsoako oa Babbitt
Babbitt alloy e sebelisoa bakeng sa valve ea ammonia globe e nang le mocheso t-70 ~ 150 ℃ le khatello ea lebitso la PN≤2.5MPa.
6. Motsoako oa koporo
Lisebelisoa tse tloaelehileng 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 la PN≤1.6MPa. Hangata e sebelisoa holi-valve tsa heke, li-valve tsa lefatše,hlahloba li-valve, 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 ka li-valve bakeng sa mecha ea litaba e kang metsi, mouoane le peterole e nang le mocheso t≤450℃ le khatello ea lebitso la PN≤32MPa.
8. Chromium-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 mouoane, asiti ea nitric le mecha e meng ea mocheso e nang le mocheso t≤600 ℃ le khatello ea lebitso PN≤6.4MPa, e sebelisetsoang valve ea globe, valve ea bolo, joalo-joalo.
9. Tšepe ea nitrided
Mofuta o sebelisoang hangata oa tšepe ea nitrided ke 38CrMoAlA, e nang le khanyetso e ntle ea kutu le khanyetso ka mor'a kalafo ea carburizing. Hangata e sebelisoa ka valve ea heke ea seteishene sa matla se nang le mocheso t≤540 ℃ le khatello ea lebitso PN≤10MPa.
10. Boronizing
Boronizing e sebetsana ka kotloloho le bokaholimo ba ho tiisa ho tsoa ho 'mele oa li-valve kapa' mele oa disc, ebe o etsa kalafo ea boronizing holim'a metsi, sebaka sa ho tiisa se na le khanyetso e ntle ea ho roala. E sebelisoa ka har'a li-valve tsa phallo ea motlakase.
Nako ea poso: Jun-10-2022
