1. Mfundo zofunika posankha hardfacing
l Kuwonetsetsa kuti musavale bwino komanso kuteteza bwino zida zotsekera pansi monga zolumikizira mapaipi, mapaipi obowola olemera, ndi makola obowola. Kulimba kwa lamba wosamva kuvala sikuyenera kutsika kuposa HRC55.
l Pobowola mu casing, pofuna kuteteza casing ndi kuchepetsa kuvala kwake, lamba wosankhidwa wosavala ayenera kukhala ndi ntchito yabwino yolimbana ndi friction.
l Kulinganiza koyenera mwasayansi pakati pa kukana kuvala ndi kuchepetsa kukangana.
l Nthawi zambiri, tikulimbikitsidwa kugwiritsa ntchito hardfacing ndi mawonekedwe "okwezeka", ndipo osavomerezeka kugwiritsa ntchito hardfacing ndi "flat" mawonekedwe. Pokhapokha ngati kukula kwakunja kwa chitoliro chobowola kuli kochepa kuti tipewe kusokoneza kukula kwa mkati mwa casing, ndikofunika kugwiritsa ntchito "lathyathyathya" losamva kuvala. Mzere uliwonse wosamva kuvala wowotcherera motere sungathe kutulutsa mphamvu yolimbana ndi kuvala chifukwa mbali zonse ziwiri zakunja kwa chitoliro chobowola ndi chingwe chosamva kuvala zimavalidwa nthawi imodzi.
2. Maganizo olakwika posankha hardfacing
Malingaliro olakwika 1:Lamba wosamva kuvala wa Tungsten carbide ndiye lamba wabwino kwambiri wosamva kuvala womwe umagwiritsidwa ntchito kuteteza ndodo zoboola.
Mzere wosamva kuvala wa tungsten carbide ukawotchera pa polumikizira chitoliro chobowola, tinthu tating'ono ta tungsten carbide timayambitsa kudula pang'ono pabokosi, zomwe zimapangitsa kuti ma casing avale kwambiri.
Makampani ambiri amafuta akunja ali ndi miyezo yamkati yomwe imaletsa mwatsatanetsatane kugwiritsa ntchito tungsten carbide hardfacing. Malo ena opangira mafuta apakhomo amaletsanso kugwiritsidwa ntchito kwawo.
NS-1 muyezo
Miyezo yamkati ya P Oil Company ku UK
Malingaliro olakwika 2: Kusankha zolimba zomwe zimatsata kwambiri kuchepetsa mikangano komanso kukana kuvala nsembe
l Pofuna kuteteza casing ndikuchepetsa kuvala kwake, kufunafuna kwambiri anti-friction lamba wosamva kuvala kumapereka kukana kwake.
ü Lamba wosamva kuvala amatha kutha mosavuta, kupangitsa kulumikizana kwachindunji pakati pa chitoliro chobowola ndi chosungira kapena chopangira chitsime. Monga zidziŵika bwino, kuvala pakati pa chitoliro chobowola chopanda kanthu ndi chopondera kapena chopangira chitsime ndi chachikulu kuposa chitoliro chobowola ndi lamba wosamva kuvala, zomwe zimapangitsa kuti chibowocho chiwonongeke komanso kulephera koyambirira kwa chitoliro chobowola. chifukwa cha kuvala kwambiri.
ü Moyo waufupi wautumiki wa hardfacing umawonjezera mtengo wawo wogwiritsa ntchito.
Nthawi yotumiza: Sep-10-2024
