Ubuso bokuvala amavalvu ensimbi (I-valve yebhabhathane e-eccentric ye-DC341X-16 ephindwe kabili) ngokuvamile ikhiqizwa yi-(I-valve ye-TWS)ukushisela okungaphezulu. Izinto ezisetshenziselwa ukushisela okungaphezulu kwama-valve zihlukaniswe ngezigaba ezine ezinkulu ngokohlobo lwe-alloy, okungukuthi ama-alloy asekelwe ku-cobalt, ama-alloy asekelwe ku-nickel, ama-alloy asekelwe ku-iron, kanye nama-alloy asekelwe ku-copper. Lezi zinto ze-alloy zenziwa ama-electrode, izintambo zokushisela (kufaka phakathi izintambo ezine-flux-core), ama-fluxes (kufaka phakathi ama-fluxes e-transition alloy) kanye nama-powder e-alloy, njll., futhi zishisela ngokushisela ngesandla i-arc, ukushisela kwe-oxyacetylene flame, ukushisela kwe-tungsten argon arc, ukushisela okuzenzakalelayo kwe-arc engaphansi komhlaba kanye nokushisela kwe-plasma arc.
Ukukhethwa kwezinto zokuvala ubuso be-valve (DC341X3-10Ivalvu yebhabhathane e-eccentric ephindwe kabili(Indandatho yokubopha yomzimba) ngokuvamile isekelwe ekushiseni kokusetshenziswa, ingcindezi yokusebenza kanye nokugqwala kwevalvu, noma uhlobo lwevalvu, isakhiwo sobuso bokubopha, ingcindezi ethile yokubopha kanye nengcindezi ethile evumelekile, noma izimo zokukhiqiza nokukhiqiza zebhizinisi, amandla okucubungula imishini kanye nekhono lobuchwepheshe lobuso kanye nezidingo zabasebenzisi. Umklamo olungiselelwe kufanele futhi wamukelwe, futhi izinto zokubopha ubuso ezinentengo ephansi, inqubo yokukhiqiza elula kanye nokusebenza kahle kokukhiqiza okuphezulu kufanele zikhethwe ngaphansi kwesimo sokwanelisa ukusebenza kwe ().I-valve yebhabhathane eqondile ene-D341X3-16 ephindwe kabilie )valvu.
Ezinye zezinto ezisetshenziselwa ukwengeza ubuso be-valve sealing surfaces zinesimo esisodwa kuphela, noma i-electrode noma i-welding wire noma i-alloy powder, ngakho-ke indlela eyodwa kuphela yokwengeza ubuso ingasetshenziswa. Ezinye zenziwe izinduku zokushisela, izintambo zokushisela noma izimpushana ze-alloy ngezindlela ezahlukene, njenge-stellite l 6 alloy, zombili izinduku zokushisela (D802), izintambo zokushisela (HS111) kanye nezimpushana ze-alloy (PT2102), bese kuba ukushisela ngesandla kwe-arc, ukushisela ilangabi le-oxy2acetylene, ukushisela kwe-tungsten argon arc, ukushisela kwe-plasma arc plasma kanye nokushisela kwe-arc plasma powder nezinye izindlela zingasetshenziswa ukushisela ubuso. Lapho sikhetha izinto zokwengeza ubuso ze-valve sealing surface, kufanele sicabangele ukukhethwa kwendlela yokwengeza ubuso ngobuchwepheshe obuvuthiwe, inqubo elula kanye nokusebenza kahle kokukhiqiza okuphezulu kwebhizinisi, ukuze kuqinisekiswe ukufezwa kokusebenza kwayo ekukhiqizweni kokwengeza ubuso be-sealing surface.
Ubuso bokuvala buyingxenye eyinhloko yevalvu (Ivalvu yebhabhathane ye-D371X-10 Wafer), futhi ikhwalithi yayo ithinta ngqo impilo yesevisi yevalvu. Ukukhetha okunengqondo kwezinto zobuso bokuvala ivalvu kungenye yezindlela ezibalulekile zokuthuthukisa impilo yesevisi yevalvu. Ukungaqondi kahle kufanele kugwenywe ekukhetheni izinto zobuso bokuvala ivalvu.
Inganekwane 1: Ubulukhuni bevalvu (D371X3-16C) Izinto zokuvala ezingaphezulu ziphezulu, futhi ukumelana kwazo nokuguguleka kuhle.
Ukuhlolwa kubonisa ukuthi ukumelana nokuguguleka kwezinto zokuvala ivalvu kunqunywa yisakhiwo esincane sezinto zensimbi. Ezinye izinto zensimbi ezine-austenite njenge-matrix kanye nenani elincane lesakhiwo sesigaba esiqinile aziqinile kakhulu, kodwa ukumelana kwazo nokuguguleka kuhle kakhulu. Ubuso bokuvala ivalvu bunobunzima obuthile obuphezulu ukuze kugwenywe ukulimala nokuklwejwa yimfucumfucu eqinile endaweni. Konke kucatshangelwa, inani lobulukhuni HRC35~45 liyafaneleka.
Inganekwane 2: Intengo yezinto zokuvala ama-valve iphezulu, futhi ukusebenza kwayo kuhle.
Intengo yezinto ezibonakalayo iyisici sayo sempahla, kuyilapho ukusebenza kwezinto ezibonakalayo kuyisici sayo somzimba, futhi akukho buhlobo obudingekayo phakathi kwalokhu okubili. Insimbi ye-cobalt kuma-alloy asekelwe ku-cobalt ivela kwamanye amazwe, futhi intengo iphezulu, ngakho-ke intengo yezinto ezenziwe nge-cobalt iphezulu. Ama-alloy asekelwe ku-cobalt abonakala ngokumelana okuhle nokuguguleka emazingeni okushisa aphezulu, kanti uma esetshenziswa ezimweni zokushisa ezijwayelekile neziphakathi, intengo/ukusebenza kuphezulu kakhulu. Ekukhetheni izinto zokuvala ubuso be-valve, izinto ezinentengo/ukusebenza okuphansi kufanele zikhethwe.
Inganekwane 3: Uma izinto zokuvala zevalvu zinokumelana okuhle nokugqwala endaweni enamandla yokugqwala, kumele zivumelane nezinye izinto zokugqwala.
Ukumelana nokugqwala kwezinto zensimbi kunendlela yayo eyinkimbinkimbi, into inokumelana okuhle nokugqwala endaweni enamandla yokugqwala, futhi izimo zishintsha kancane, njengokushisa noma ukuhlushwa okuphakathi, ukumelana nokugqwala kuyashintshwa. Kwenye indawo yokugqwala, ukumelana nokugqwala kuyahlukahluka kakhulu. Ukumelana nokugqwala kwezinto zensimbi kungaziwa kuphela ngokuhlolwa, futhi izimo ezifanele kumele ziqondwe ukuze zibhekiselwe ezintweni ezifanele, futhi akumelwe zibolekwe ngokungaboni.
Isikhathi sokuthunyelwe: Mashi-01-2025
