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Lisebelisoa tse tala tse kang poleiti ea potoloho ea oli, valve e le 'ngoe ea phallo le valve ea piston e hlahisoa ka botlalo
2023-02-21
Lisebelisoa tse tala tsa valve tse kang poleiti ea potoloho ea oli, valve e le 'ngoe ea phallo le valve ea piston e hlahisoa ka ho qaqileng poleiti ea potoloho ea oli, valve e le 'ngoe ea phallo le valve ea heke (valve ea piston) ke e' ngoe ea likarolo tsa bohlokoa tsa valve, hang-hang ho nka khatello e bohareng ea ho sebetsa. lisebelisoa tse tala tse atisang ho sebelisoa li lokela ho kopana le litokisetso tse nepahetseng tsa "khatello ea valve le boemo ba mocheso". Carbon steel: E loketse khatello ea lebitso PN≤32.0MPa, mocheso -30 ~ 425 ℃ metsi, mouoane, khase, hydrogen, ammonia, naetrojene le lihlahisoa tsa petroleum le mecha e meng ea litaba. Limaraka tse tloaelehileng ke WC1, WCB, ZG25 le tšepe ea boleng 20, 25, 30 le tšepe e tlase ea alloy 16Mn. Stainless acid manganga tšepe, e loketseng bakeng sa khatello ea lebitso PN≤6.4Mpa, mocheso ≤200℃ sodium cyanide, glacial acetic acid le mecha e meng ea litaba... Lisebelisoa tse ngata tse tala bakeng sa tlhahiso le tlhahiso ea likarolo tsa valve, ho kenyelletsa le mefuta e fapaneng ea mefuta e fapaneng ea leseli. litšepe le litšepe tsa bohlokoa le motsoako oa aluminium, lisebelisoa tse sa tšoaneng tse sa kang tsa tšepe. Lisebelisoa tse tala bakeng sa likarolo tsa li-valve li lokela ho khethoa ho latela lintlha tse latelang: 1, khatello e mahareng e sebetsang, mocheso le litšobotsi. 2, matla a ho jara a likarolo mme hangata a bapala karolo ea sebopeho sa valve. 3. Ts'ebetso e ntle ea ts'ebetso. 4. Tlas'a motheo oa ho finyella maemo a ka holimo, litšenyehelo tse batlang li le tlase lia hlokahala. Lisebelisoa tse tala tsa poleiti ea potoloho ea oli, valve e le 'ngoe ea phallo le poleiti ea valve (valve ea piston) Letlapa la potoloho ea oli, valve e le 'ngoe ea phallo le valve ea heke (valve ea piston) ke e' ngoe ea likarolo tsa bohlokoa tsa valve, hang-hang ho nka khatello e bohareng ea ho sebetsa, e sebelisoang hangata. lisebelisoa tse tala li lokela ho kopana le litokisetso tse nepahetseng tsa "khatello ea valve le boemo ba mocheso". Lisebelisoa tse tloaelehileng li oela likarolong tse latelang: 1, tšepe ea bohlooho: tšepe e bohlooho e loketse khatello ea lebitso PN≤1.0MPa, mocheso -10 ℃ ~ 200 ℃ metsi, mouoane, khase, khase e nang le metsi le oli e hloekisitsoeng le mecha e meng ea litaba. Grey cast iron maemo a tloaelehileng: HT200, HT250, HT300, HT350. Tse peli, tšepe e bonolo: e loketseng khatello ea lebitso PN≤2.5MPa, mocheso -30 ~ 300 ℃ metsi, mouoane, khase le oli, lihlahisoa tse tloaelehileng ke: KTH300-06, KTH330-08, KTH350-10. Tse tharo, ho lahla ductile: e loketseng PN≤4.0MPa, mocheso -30 ~ 350 ℃ metsi, mouoane, khase le oli le mecha e meng ea litaba. Mefuta e tloaelehileng ke: QT400 -- 15, QT450 -- 10, QT500 -- 7. Ka lebaka la boemo ba hajoale ba theknoloji ea naha ea rona, lifeme li ntle 'me tse ling li mpe le bareki ha ho bonolo ho li lemoha. Ho ea ka phihlelo, ho etsoa tlhahiso ea hore PN≤2.5MPa, valve kapa valve ea tšepe e khethoe bakeng sa polokeho. Tse 'nè, ho hanyetsa acid e phahameng silicon ductile casting: e loketseng khatello ea lebitso PN≤0.25MPa, mocheso o ka tlaase ho 120 ℃ seaplane e senyang. Tse hlano, k'habone tšepe: e loketseng ka lebitso khatello ea PN≤32.0MPa, mocheso -30 ~ 425 ℃ metsi, mouoane, khase, haedrojene, ammonia, naetrojene le lihlahisoa tsa petroleum le mecha e meng ea litaba. Limaraka tse tloaelehileng ke WC1, WCB, ZG25 le tšepe ea boleng 20, 25, 30 le tšepe e tlase ea alloy 16Mn. Vi. Lisebelisoa tsa alloy: E loketse PN≤2.5MPa metsi, leoatle, O2, khase, oli le mecha e meng ea litaba, le mocheso oa -40 ~ 50 ℃ vapor medium, lihlahisoa tse tloaelehileng ke ZGnSn10Zn2 (tin bronze), H62, HPB59-1 (e khubelu koporo), Qaz19-2, Qa19-4 (boronse ea aluminium). Tse supileng, tse tsoelang pele mocheso oa koporo oa mocheso: o loketse khatello ea lebitso PN≤17.0MPA, mocheso ≤570℃ mocheso oa mouoane le lihlahisoa tsa peterole. Letšoao le tloaelehileng le na le ZGCr5Mo, 1 cr5m0. ZG20CrMoV, ZG15Gr1Mo1V, 12 crmov WC6, WC9, joalo-joalo Tšebeliso ea sebele e tlameha ho lumellana le khatello ea valve le litlhoko tsa maemo a mocheso. Litšepe tse robeli, mocheso o tlase, o loketseng khatello ea lebitso PN≤6.4Mpa, mocheso ≥ -196 ℃ butadiene, pe, khase ea tlhaho ea mokelikeli, naetrojene e nang le metsi le mecha e meng ea mecha ea phatlalatso, lihlahisoa tse tloaelehileng) ke ZG1Cr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, ZG0Cr18Ni9 e sa hanyetsanang le Ni9 tšepe, e loketseng khatello ea lebitso PN≤6.4Mpa, mocheso ≤200℃ sodium cyanide, acetic acid le mecha e meng ea litaba, lihlahisoa tse tloaelehileng ke ZG0Cr18Ni9Ti, ZG0Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ho hanyetsa acid le tharollo ea urea The diameter ea ho qetela ea phoso ea disc le traging e laoloa ka lebaka la bophara le moeli oa deformation ea koporo le tšepe ea alloy castings ea lisebelisoa tse tala tsa valve, kahoo ha ho na mamello ea dimensional e hlokahalang. Morekisi ea sisintsoeng le odara ea ho beha pele ho reka thepa, kapa palo ea masalla a sehlahisoa a kentsoeng ka machining. Li-Burrs tse bakoang ke mapheo a makukuno, likarolo tsa ho phunya, mochini o otlang, kapa ho feta posong ea tataiso ea lefu la forging li lumelloa ha feela li tlosoa nakong ea mochini oa mochini kapa li se kotsi ho lula sehlahisoa se felileng (G1,G2,G3, le G4 ho FIG 9). Setšoantšo se lokela ho bontša hore likarolo tse joalo tse tala ha lia lokela ho feta 1.5 mm Ho hokahanya: Lisebelisoa tsa tšepe tsa koporo le alloy bakeng sa lisebelisoa tse tala tsa li-valve (II) Liphoso tsa Dimensional ka hare le ho pholletsa le lefu - mela e arohaneng Raw material Group I, litlhaloso, le t li lokela ho lumellana le mefuta e fapaneng ea ho kheloha e fanoeng ho Lethathamo la 14, ha sehlopha sa lisebelisoa tse tala Ⅱ se lokela ho lumellana le Lethathamo la 15, sehlopha sa lihlahisoa tse tala Ⅲ Tlhaloso e kholoanyane ea Angle ea calcination, tmax, ke tekanyo ea motheo ea mamello e fumanehang ea tekanyo ho pholletsa le litlhaloso tsa mohala oa karohano. Phoso ea tmax e sebakeng sa nts'etsopele A ea ho otla ka thata Angle ea karolo. Tabeng ea likarolo tsa annular, sebaka sohle sa A se lekana le sebaka sa selikalikoe sa A; tabeng ea likarolo tse sa tloaelehang, sebaka sohle sa A se lekana le sebaka sa rectangle sehiloeng ka ntle (sheba Setšoantšo sa 4). Litlhaloso tsohle tse nyane li na le phoso e tšoanang le ea tmax.