Tsamaisong ea ho tsamaisa metsi,Valve ea Mocheso o Phahamengke karolo ea taolo ea bohlokoa haholo, eo haholo-holo e nang le mesebetsi ea taolo, ho faposa, ho thibela ho khutlela morao, ho khaola le ho shunt. Valve e sebelisoa haholo masimong a indasteri le a sechaba. Valve ea mocheso o phahameng ke mofuta o sebelisoang hangata li-valve. Litšobotsi tsa eona tse ikhethileng ke tse latelang: ts'ebetso e ntle ea ho tima, ho tima ho tebileng ho ka etsoa; ho tjheseletsa hantle; ho monya hantle ha tšusumetso, ho thata ho e senya ka mabifi; Bofokoli ba bohale bo atisa ho ba bonyenyane le tse ling. Ho na le mefuta e mengata ea li-valve tsa mocheso o phahameng. Tse atileng haholo ke tsa mocheso o phahamengLi-valve tsa serurubele, mocheso o phahamengLi-valve tsa bolo, difilthara tsa mocheso o phahameng, le difilthara tsa mocheso o phahamengLi-valve tsa heke.
Mefuta ea Li-valve tsa Mocheso o Phahameng ke Eng?
Li-valve tsa mocheso o phahameng li kenyelletsa li-valve tsa heke tsa mocheso o phahameng, li-valve tsa ho tima mocheso o phahameng, li-valve tsa ho hlahloba mocheso o phahameng, li-valve tsa bolo tsa mocheso o phahameng, li-valve tsa serurubele tsa mocheso o phahameng, li-valve tsa nale tsa mocheso o phahameng, li-valve tsa throttle tsa mocheso o phahameng, le li-valve tse fokotsang khatello mochesong o phahameng. Har'a tsona, tse sebelisoang haholo ke li-valve tsa heke, li-valve tsa globe, li-valve tsa ho hlahloba, li-valve tsa bolo le li-valve tsa serurubele.
Maemo a ho Sebetsa a Li-valve tsa Mocheso o Phahameng ke afe?
Maemo a tshebetso a mocheso o phahameng haholo a kenyeletsa haholo mocheso o tlase hodimo, mocheso o phahameng Ⅰ, mocheso o phahameng Ⅱ, mocheso o phahameng Ⅲ, mocheso o phahameng Ⅳ, le mocheso o phahameng Ⅴ, tse tla hlahiswa ka thoko ka tlase.
Mocheso o tlase hodimo
Mocheso o tlase hodimo o bolela hore mocheso o sebetsang wa valve o sebakeng sa 325 ～ 425 ℃. Haeba sesebediswa e le metsi le mouoane, WCB, WCC, A105, WC6 le WC9 di sebediswa haholoholo. Haeba sesebediswa e le oli e nang le sebabole, C5, CF8, CF3, CF8M, CF3M, jj., tse hanelang ho bola ha sulfide, di sebediswa haholoholo. Di sebediswa haholoholo disebeding tse fokotsang kgatello ya sepakapaka le disebedisweng tsa ho koka tse diehang difemeng. Nakong ena, di-valve tse entsweng ka CF8, CF8M, CF3 le CF3M ha di sebedisetswe ho hanyetsa ho bola ha ditharollo tsa asiti, empa di sebedisetswa dihlahiswa tsa oli e nang le sebabole le diphaephe tsa oli le kgase. Boemong bona, mocheso o phahameng ka ho fetisisa wa tshebetso wa CF8, CF8M, CF3 le CF3M ke 450 ° C.
Mocheso o phahameng Ⅰ
Ha mocheso o sebetsang oa valve o le 425 ～ 550 ℃, ke sehlopha sa I sa mocheso o phahameng (se bitsoang sehlopha sa PI). Thepa e ka sehloohong ea valve ea sehlopha sa PI ke "tšepe e phahameng ea mocheso Ⅰ ea carbon e mahareng ea chromium nickel e sa tloaelehang ea lefatše ea titanium e sa haneleng mocheso" ka CF8 e le sebopeho sa motheo ho standard ea ASTMA351. Hobane sehlopha sa PI ke lebitso le ikhethang, mohopolo oa tšepe e sa hloekang ea mocheso o phahameng (P) o kenyelelitsoe mona. Ka hona, haeba sesebelisoa se sebetsang e le metsi kapa mouoane, leha tšepe ea mocheso o phahameng WC6 (t≤540 ℃) kapa WC9 (t≤570 ℃) le eona e ka sebelisoa, ha lihlahisoa tsa oli tse nang le sebabole le tsona li ka sebelisoa tšepe ea mocheso o phahameng C5 (ZG1Cr5Mo), empa Li ke ke tsa bitsoa sehlopha sa PI mona.
Mocheso o phahameng II
Mocheso o sebetsang oa valve ke 550 ～ 650 ℃, 'me e arotsoe e le mocheso o phahameng Ⅱ (o bitsoang P Ⅱ). Valve ea mocheso o phahameng ea sehlopha sa PⅡ e sebelisoa haholo-holo sesebelisoa sa ho petsoha oli e boima sa fektheri ea ho hloekisa. E na le valve ea heke e sa senyeheng mocheso o phahameng e sebelisoang ka har'a nozzle ea potoloho e meraro le likarolo tse ling. Thepa e ka sehloohong ea valve ea sehlopha sa PⅡ ke "tšepe e matlafalitsoeng ea mocheso o phahameng Ⅱ grade medium carbon chromium nickel rare earth titanium tantalum e matlafalitsoeng mocheso o hanelang mocheso" ka CF8 e le sebopeho sa motheo ho ASTMA351 standard.
Mocheso o phahameng III
Mocheso o sebetsang oa valve ke 650 ～ 730 ℃, 'me o arotsoe e le mocheso o phahameng oa III (o bitsoang PⅢ). Li-valve tsa mocheso o phahameng oa sehlopha sa PⅢ li sebelisoa haholo-holo liyuniting tse kholo tsa ho petsoha ha oli e boima libakeng tsa ho hloekisa. Thepa e ka sehloohong ea valve ea mocheso o phahameng oa sehlopha sa PⅢ ke CF8M e thehiloeng ho ASTMA351.
Mocheso o phahameng Ⅳ
Mocheso o sebetsang oa valve ke 730 ～ 816 ℃, 'me o lekantsoe e le mocheso o phahameng oa IV (o bitsoang PIV ka bokhutšoanyane). Moeli o kaholimo oa mocheso o sebetsang oa valve ea PIV ke 816 ℃, hobane mocheso o phahameng ka ho fetisisa o fanoang ke sehlopha se tloaelehileng sa khatello ea mocheso oa ASMEB16134 se khethiloeng bakeng sa moralo oa valve ke 816 ℃ (1500υ). Ho phaella moo, ka mor'a hore mocheso o sebetsang o fete 816 ° C, tšepe e haufi le ho kena sebakeng sa mocheso oa forging. Nakong ena, tšepe e sebakeng sa deformation ea polasetiki, 'me tšepe e na le plasticity e ntle, 'me ho thata ho mamella khatello e phahameng ea mosebetsi le matla a tšusumetso le ho e thibela ho senyeha. Thepa e ka sehloohong ea valve ea P Ⅳ ke CF8M ho standard ea ASTMA351 e le sebopeho sa motheo "thempereichara e phahameng Ⅳ medium carbon chromium nickel molybdenum rare earth titanium tantalum e matlafalitsoeng ke mocheso o hanelang mocheso". CK-20 le ASTMA182 standard F310 (ho kenyeletsoa le dikahare tsa C ≥01050%) le tshepe e sa ruseng e hanelang mocheso ya F310H.
Mocheso o phahameng Ⅴ
Mocheso o sebetsang oa valve o phahame ho feta 816 ℃, o bitsoang PⅤ, valve ea mocheso o phahameng oa PⅤ (bakeng sa li-valve tse koetsoeng, eseng li-valve tse laolang lirurubele) e tlameha ho sebelisa mekhoa e khethehileng ea moralo, joalo ka ho kenya lining insulation lining kapa metsi kapa khase. Ho pholisa ho ka netefatsa ts'ebetso e tloaelehileng ea valve. Ka hona, moeli o kaholimo oa mocheso o sebetsang oa valve ea mocheso o phahameng oa sehlopha sa PⅤ ha oa hlalosoa, hobane mocheso o sebetsang oa valve ea taolo ha o khethoe feela ke thepa, empa le ke mekhoa e ikhethileng ea moralo, 'me molao-motheo oa motheo oa mokhoa oa moralo o ts'oana. Valve ea mocheso o phahameng oa sehlopha sa PⅤ e ka khetha thepa e utloahalang e ka fihlelang valve ho latela mokhoa oa eona oa ho sebetsa le khatello ea ho sebetsa le mekhoa e khethehileng ea moralo. Valve ea mocheso o phahameng oa sehlopha sa PⅤ, hangata valve ea flapper kapa serurubele ea valve ea flue flapper kapa valve ea serurubele hangata e khethoa ho tsoa ho li-alloy tsa mocheso o phahameng oa HK-30 le HK-40 maemong a ASTMA297. E hanela mafome, empa e sitoa ho mamella ho tšoha le meroalo e phahameng ea khatello.
Nako ea poso: Phuptjane-21-2021