PlasmaMangani Welding, monga imodzi mwa njira zamakono zolimbitsa thupi, ili ndi ubwino wokhala ndi zipangizo zosiyanasiyana za ufa wa alloy, wandiweyani wosanjikiza, wochepetsetsa pang'ono, kupanga bwino kwambiri, kugwiritsira ntchito zinthu zochepa za alloy, ndi mtengo wotsika.Pamwamba pake ndi yosagwira dzimbiri, yosavala, Kuwongolera kwa kutentha kwapamwamba kwachititsa chidwi kwambiri.
Pakali pano, zitsulo zopangidwa ndi chitsulo, nickel-based ndi cobalt-based alloy powders zimagwiritsidwa ntchito makamaka pa plasma.buildup kuwotcherera.Iron-based alloy powder ali ndi kukana kwabwino kovala komanso mtengo wotsika, koma kukana kutentha komanso kukana dzimbiri.Mafuta a aloyi opangidwa ndi nickel ndi cobalt ali ndi kukana kwa dzimbiri komanso kutentha kwambiri, koma mtengo wake ndi wokwera kwambiri.Pogwiritsa ntchito plasma arc kuyika chitsulo-based self-fluxing alloy powder, nickel-based self-fluxing alloy powder ndi nickel-based alloy plus wc composite powder pamwamba pa 16mn zitsulo, kupyolera mu kuyesa kuvala muzojambula zosiyanasiyana zowononga, zotsatira za zitatu. mitundu ya zigawo pamwamba anaphunzira Microstructure, gawo zikuchokera, kuuma ndi kuvala kukana.
Chikoka chamitundu yosiyanasiyana yazambiri pakukaniza kwa aloyi omwewo akuyatsa wosanjikiza ndizosiyananso.Kukaniza kwa kusanjikiza kwapamwamba pamadzi osalowerera ndale ndikwabwinoko kuposa komwe kumakhala acidic ndi alkaline medium.Izi zili choncho makamaka chifukwa kuvala kamodzi kumagwira ntchito m'madzi.Mu njira yothetsera HCl ndi kuchepetsa njira ya NaOH, batri yaying'ono imapangidwa pakati pa chigawocho ndi yankho lolimba, ndipo pali kugwirizana pakati pa kuvala ndi kuwonongeka kwa electrochemical, kotero kuti wosanjikiza pamwamba pake ali mu njira yothetsera HCl.Ndipo kukana kuvala mu dilute NaOH solution sing'anga kumachepetsedwa chifukwa cha kukana kwa dzimbiri.
Poyerekeza kukana kuvala kwa wosanjikiza pamwamba mu kuchepetsa HCl ndi kuchepetsa NaOH sing'anga, anapeza kuti kuvala kukana mu kuchepetsa HCl sing'anga ndi osauka, chifukwa pamwamba wosanjikiza akhoza kupanga passivation filimu kuchepetsa HCl ndi kuchepetsa NaOH sing'anga, Komabe, passivation filimu mu kuchepetsa HCl n'zosavuta kuwonongeka, ndi passivation filimu kuchepetsedwa NaOH sing'anga si kuonongeka mosavuta, kotero kuvala kukana kwa pamwamba wosanjikiza mu kuchepetsa NaOH sing'anga ndi bwino kuposa kuchepetsa asidi HCl..
Kuuma kwa wosanjikiza wa Ni60 ndikofanana ndi Fe55.Kukaniza kuvala kwa Ni60 pamwamba pamadzi mu hydrochloric acid solution ndi kusungunula NaOH yankho kuli bwino kuposa Fe55, koma zosiyana ndizowona m'madzi osalowerera.Pakuti pamwamba wosanjikiza aloyi yemweyo, avale kukana mu dzimbiri chilengedwe sing'anga wa kuchepetsa HCl njira ndi kuchepetsa NaOH njira ndi otsika kuposa m'madzi ndale, ndi kuchepetsa zikuonekeratu mu sing'anga acidic nthaka.
Nthawi yotumiza: Feb-14-2023