I-valve sealing surface grinding kanye nokuhlanganisa isibambo se-Valve kanye nezicaciso zopende wesondo lesandla

I-valve sealing surface grinding kanye nokuhlanganisa isibambo se-Valve kanye nezicaciso zopende wesondo lesandla

Ingabe indlela yokuqedela yokucubungula, ingenza izingxenye zithole ukunemba okuphezulu kwe-dimensional, ukunemba kwejometri nokuqedwa kwendawo, kodwa ayikwazi ukuthuthukisa ukuma okuhlangene phakathi kokunemba kwendawo. Ithuluzi lokugaya kufanele lihlangabezane nalokhu okubili okulandelayo: ① kulula ukushumeka izinhlayiya ezilumayo ② zingagcina ukunemba kwejometri yethuluzi lokugaya isikhathi eside. Ngakho-ke, ukusetshenziswa okuvamile kwezinto ezithambile kune-workpiece ukwenza amathuluzi okucwaninga, ngokuvamile asetshenziswa grey cast iron. Enqubweni yokuhlanganisa i-valve, umzimba we-valve uvame ukusetshenziswa njengezingxenye zereferensi, ngokusho komyalelo oshiwo ohlelweni lomhlangano, futhi indlela yenziwa. Ngaphambi kokuhlanganiswa, kuyadingeka ukuhlola ukuthi izingxenye zikhishwe futhi zihlanzwa.
Valve sealing surface ukugaya
Okokuqala, ukugaya izimiso eziyisisekelo namathuluzi
(I) Izimiso Eziyisisekelo:
Ingabe indlela yokuqedela yokucubungula, ingenza izingxenye zithole ukunemba okuphezulu kwe-dimensional, ukunemba kwejometri nokuqedwa kwendawo, kodwa ayikwazi ukuthuthukisa ukuma okuhlangene phakathi kokunemba kwendawo.
Ukugaya, ithuluzi kanye nendawo yokusebenza kuhlangana ndawonye, ​​ama-abrasive okugcwalisa aphakathi nendawo, lapho ithuluzi endaweni ehlangene, ukuvivinya umzimba okuyinkimbinkimbi phakathi kwezingxenye ezimbili ze-grits abrasive surface surface eshelelayo noma eginqikayo, ingxenye ye-abrasive ishunyekiwe noma i-ssile endaweni yamathuluzi, futhi anqunywe ebusweni workpiece kuyinto ungqimba mncane kakhulu metal, isiqongo convex on the workpiece kuqala ukugaya, kancane kancane kuzuzwe ekahle imfuneko ebusweni.
Ukuze wenze umfaniswano wokugaya ongaphezulu, umzila wokunyakaza ohlobene wephoyinti ngalinye ku-workpiece ukuya ethuluzini lokugaya kufanele ufane ngangokunokwenzeka, ngakho-ke isiqondiso sokunyakaza okuhlobene kufanele sishintshwe njalo.
Ukusheshisa ukunyakaza kokugaya, kuphakama ukusebenza kahle, kodwa uma kuphezulu kakhulu, kuzobangela ukushisa komsebenzi futhi kuthinte ukunemba kwejometri. Ngesikhathi esifanayo, kufanele sinake ukuthi singacindezeli kakhulu phezulu, kungenjalo kuzophinde kubangele ukushisa.
Ngenxa yokuthi ukugaya kuwukucubungula okubushelelezi, inani lokusika lincane kakhulu, ngakho-ke lingaqinisekisa ukususa umkhondo wokucubungula wenqubo yokugcina, isisekelo sokulungisa iphutha lejometri ye-workpiece, isibonelelo esincane sokugaya, kungcono.
(2) Amathuluzi okugaya
Ithuluzi lokugaya kufanele lihlangabezane nalokhu okubili okulandelayo: ① kulula ukushumeka izinhlayiya ezilumayo ② zingagcina ukunemba kwejometri yethuluzi lokugaya isikhathi eside. Ngakho-ke, ukusetshenziswa okuvamile kwezinto ezithambile kune-workpiece ukwenza amathuluzi okucwaninga, ngokuvamile asetshenziswa grey cast iron.
I-Abrasive ingxube yezinto kanye noketshezi olunamanzi. Izinto ezisetshenziswa kakhulu yi-corundum (i-alumina), i-silicon carbide, i-boron carbide, i-chromium oxide, i-iron oxide nempushana yedayimane, i-abrasive emaholoholo uma isetshenziswa.
Uketshezi lokugaya lusetshenziselwa ukulungisa i-abrasive, futhi ludlala indima yokuthambisa, ukupholisa kanye ne-oxidation.
Okwesibili, i-valve sealing surface yokugaya
(a) ukugaya ngesandla
Ukugaya ngesandla kulula, kodwa ukusebenza kahle okuphansi, izinga eliphansi, elifanele amabhizinisi amancane nokulungisa.
1. Ukugaya mathupha kwendawo yokuvala yomzimba wevalvu
Ukusetshenziswa kwembobo eyisikwele yethuluzi lokugaya elimise okwediski yengadi kubekwa endaweni evalekayo yesikhala somzimba we-valve, bese kuba isibambo eside esinekhanda eliyisikwele sisetshenziselwa ukushayela ipuleti lokugaya ukunyakaza kokugaya. Kukhona umphathi wekholomu yengadi noma yenza ipuleti le-heat conduction epuleti lokugaya ukuze uvimbele ithuluzi lokugaya ukuthi lingavuli indawo yokuvala.
Ngaphambi kokugaya, ithuluzi lokugaya kufanele lihlanzwe, limbozwe ungqimba lwe-abrasive, futhi ithuluzi lokugaya kufanele lifakwe endaweni yokuvala, okokuqala vula iwashi ngo-180 ° bese uphikisana no-90 °, ngokuphindaphindiwe, naka amandla afanayo namandla afanelekile. lapho ugaya, futhi njalo wengeza ukulimaza.
2, ipuleti le-valve, i-valve disc nezinye izingxenye zokugaya indawo yokugaya
Kusetshenziswa epuletini lokugaya ukuze kugaywe mathupha, okokuqala epuletini elimbozwe ngokulinganayo ngesendlalelo se-ejenti yokugaya, i-workpiece ixhunywe epuletini, ukuze uhlangothi olulodwa lwenze ukujikeleza nokwenza ukunyakaza okuqondile noma ukunyakaza kwesibalo 8.
Umbala we-PAINT wesibambo se-valve kanye nesondo lesandla uyahlukahluka kuye ngezinto ezingaphezulu zokuvala.
Penda ISIBAMBA ESIVIVINYO KANYE NEHANDWELI LESANDLA. Bheka ITHEBULA ELILANDELAYO LOKUTHOLA UMBALA WOKUPENTI WOKUGCINA KOKUtywinwa kwendawo
Izinto ezingaphezulu zokuvala
Umbala kapende we-HANDLE kanye nesondo lesandla Isibambo esivala isibambo kanye nombala kapende wesondo lesandla Ithusi noma ithusi elibomvu eliqinile elihlanganisiwe Cerurenous Babbitt ipulasitiki eliphuzi elinsomi i-aluminium i-aluminium emhlophe esakhiwe ngensimbi emnyama engamelana ne-asidi, insimbi engagqwali ekhanyayo eluhlaza okwesibhakabhaka iraba ephakathi nendawo eluhlaza nitriding insimbi ekhanyayo onsomi i-Monel alloy emnyama ophuzi