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O le pauta fa'asusu vevela DG tungsten carbide WC-20CrC-7Ni e fa'aaogaina mo le fa'asusuina o le HVOF, HVAF, PLS

Oloa

Fa'avelaina o le plasma o u'amea fa'avae-cobalt e saunia ai ni ufiufi fa'avelaina o ma'a'a eseese

O u'amea fa'avae-cobalt o u'amea ia e tete'e atu i le vevela maualuga i le fa'a'ele'elega e o'o atu i le 1000 tikeri Celsius. E iai fo'i lo latou tete'e lelei i le vaivai o le vevela maualuga ma le 'ele'elega vevela, ma fa'aaogaina lautele ai mo le toe fa'aleleia ma le puipuiga o valves, nofoa valves, bearings, ma isi vaega faigaluega, fa'apea fo'i ma le fa'apipi'iina o luga o panels ma rollers eseese e tete'e atu i le ofuina. I le fa'aopoopoga i lo latou tete'e atu i le 'ele'elega maualuga i le vevela, o u'amea fa'avae-cobalt e iai fo'i le tete'e lelei i le 'ele'elega e o'o atu i le 50% phosphoric acid ma le 5% sulfuric acid. E fa'atatau i le ma'a'a o le pa'u u'amea fa'avae-cobalt, e mafai ona fa'aogaina eseese. I le taimi nei, o lo matou fale gaosi oloa e gaosia ai pa'u u'amea fa'avae-cobalt ma tulaga ma'a'a nei:

DG.Co6:
HRC: 37-43,
Fa'asologa fa'akemikolo: C1.2, Cr20.3, Fe2.5, Ni2.5, Si1.1, W4, Co Bal.
Fa'aoga masani: lau o le turbine, valve o le afi, valve e maualuga le vevela ma le mamafa, ma isi.

DG.Co12:
HRC: 40-50,
Fa'asologa fa'akemikolo: C1.5, Cr30.5, Fe2.5, Ni2.5, Si1.5, W8, Co Bal.
Fa'aoga masani: valve e fa'avevela ma fa'amamafa, nifo ili, sikulima, ma isi.

DG.Co190:
HRC: ≥57,
Fa'asologa fa'akemikolo: C3.3, Cr26, Si0.8, W14, Co Bal.
Fa'aoga masani: Meafaigaluega eseese e vili ai e fa'aaoga i le pisinisi suau'u.

DG.Co21:
HRC: 25-30,
Fa'asologa fa'akemikolo: C.025, Cr27.5, Fe2.0, Ni2.5, Si2, W0.15, Mo5.5, Mn1.0, Co Bal.
Fa'aoga masani: lau o le turbine, valve eseese, nofoa o valve, ma isi mea faapena.

DG.Co158:
HRC: 38-42,
Fa'asologa fa'akemikolo: C0.75, Cr26.0, Fe3.0, Ni3.0, Si1.9, B0.7, W5.5, Mo0.5, Mn0.1, Co Bal.
Fa'aoga masani: vaega e tete'e i le ofuina mo siosiomaga faigaluega i le vevela maualuga, tete'e i le ele o le kesi vevela ma le a'afiaga.

DG.Co158V:
HRC: 45-50,
Fa'asologa fa'akemikolo: C1.0, Cr30.0, Fe4.0, Ni3.0, Si1.0, B0.7, W8.0, Mo0.5, Mn0.1, Co Bal.
Fa'aoga masani: vaega e tete'e i le ofuina mo siosiomaga faigaluega i le vevela maualuga, tete'e i le ele o le kesi vevela ma le a'afiaga.

O le tele o u'amea fa'avae-cobalt e fa'agasoloina e ala i le fa'avevela o le plasma, ma o nisi e mafai ona fa'agasoloina e ala i le fa'avevela o le oxyacetylene. I le taimi nei, o a matou u'amea fa'avae-cobalt e gaosia e ala i le fa'atomuina o le kesi. Pe a fa'atusatusa i le pauta e gaosia e ala i le fa'atomuina o le vai, o le pauta e gaosia e ala i le fa'atomuina o le kesi e sili atu ona lapotopoto ma sili atu le saoasaoa o le tafe.