Tlhaloso:
Co 21, thupa e se nang letho e thehiloeng ho cobalt e etsang motsoako o nang le khabone e tlase, austenitic, e nang le thepa e ntle ea ho tiisa mosebetsi, matla a mocheso o phahameng le ho hanela tšusumetso. Li-depositi tsa Co 21 li tsitsitse nakong ea potoloho ea mocheso, e leng se etsang hore e be khetho e ntle bakeng sa thepa e chesang ea die. E sebelisoa holim'a li-valve tsa taolo ea mouoane le mokelikeli le litulo. E ka sebelisoa ho litšepe tsohle tse ka tjheseletsoang, ho kenyeletsoa le litšepe tse sa hloekang. E lekana le: Stellite 21, Polystel 21.
LIKOPELO:
Li-valve tsa mouoane. Li-shear tse chesang. Li-die tsa ho betla. Li-plug tsa ho phunya. Li-valve tsa lik'hemik'hale le tsa peterole.
LINTLHA TSA SEHLAHISOA:
Sebopeho sa lik'hemik'hale
| Sehlopha | Sebopeho sa lik'hemik'hale (%) | ||||||||
| Co | Cr | W | Ni | C | Mn | Si | Mo | Fe | |
| Co 21 | Bala | 27.3 | ≤0.5 | 2 | 0.25 | ≤0.5 | 1.5 | 5.5 | 1.5 |
LITŠOANTŠISO TSA 'MELE:
| Sehlopha | Botenya | Sebaka sa ho Qhibiliha |
| Co 21 | 8.33g/cm3 | 1295~1435°C |
LITŠOBOTSI TSE TLWAELEHILENG:
| Bothata | Khanyetso ea Abrasion | Mekhahlelo ea Depositi | Khanyetso ea ts'enyeho | Machilitylineab |
| HRC 27~40 | Ho lokile | Tse ngata | Ho lokile | Lisebelisoa tsa Carbide |
BOHOLO BO TLWAELEHILENG:
| Bophara | Bophara | Bophara |
| 1/8” (3.2mm) | 5/32” (4.0mm) | 3/16” (4.8mm) |
Hlokomela hore boholo bo khethehileng, kapa litlhoko tsa ho paka lia fumaneha likopong tsohle.
LITLHAKISO:
AWS A5.21 /ASME BPVC IIC SFA 5.21 ERCoCr-E
AWS A5.13 ECOCR-A:
Cobalt 6
Li-electrode tsa ECoCr-A li khetholloa ka sebopeho se sa bonahaleng, se nang le marang-rang a li-carbide tsa chromium tse ka bang 13% tse ajoang ka har'a matrix ea tharollo e tiileng ea cobalt-chromium-tungsten. Sephetho ke thepa e nang le motsoako oa khanyetso e akaretsang khahlanong le ho robeha ho tlase ha khatello, ka thata e hlokahalang ho hanela tekanyo e itseng ea tšusumetso. Li-alloy tsa Cobalt le tsona li ntle ka tlhaho bakeng sa ho hanela ho robeha ho tloha tšepeng ho ea tšepeng, haholo-holo maemong a boima bo phahameng a ka bakang ho teneha. Boleng ba alloy e ngata ea matrix bo boetse bo fana ka khanyetso e ntle khahlanong le mafome, oxidation, le ho boloka mocheso o phahameng oa thatafalo e chesang ho fihlela ho 1200°F (650°C). Li-alloy tsena ha li fetoloe ke allotropic 'me ka hona ha li lahleheloe ke thepa ea tsona haeba tšepe ea motheo e phekoloa ka mocheso hamorao.
Colbalt #6 e kgothaletswa bakeng sa maemo ao ho ona ho tsofalang ho tsamayang le dithempereichara tse phahameng le moo ho nang le tshenyo, kapa ka bobedi. Ditshebediso tse ding tse tlwaelehileng ke di-valve tsa phallo ya dikoloi le ya mokelikeli, di-chain saw guides, di-hot punch, di-shear blades, le di-extruder screws.
AWS A5.13 ECOCR-B:
Cobalt 12
Li-electrode le lithupa tsa ECoCr-B li tšoana ka sebopeho le li-deposit tse entsoeng ka ho sebelisa li-electrode le lithupa tsa ECoCr-A (Cobalt 6), ntle le peresente e phahameng hanyane (hoo e ka bang 16%) ea li-carbide. Motsoako ona o boetse o na le bothata bo phahameng hanyane le khanyetso e betere ea ho khohlela le ho robeha ha tšepe. Khanyetso ea tšusumetso le mafome e theoleloa hanyane. Li-deposit li ka etsoa ka mechini ka lisebelisoa tsa carbide.
Li-electrode tsa ECoCr-B (Cobalt 12) li sebelisoa ka ho fapanyetsana le li-electrode tsa ECoCr-A (Cobalt 6). Khetho e tla itšetleha ka ts'ebeliso e itseng.
AWS A5.13 ECOCR-C:
Cobalt 1
ECoCr-C e na le peresente e phahameng (hoo e ka bang 19%) ea lik'habohaedreite ho feta depositi e entsoeng ka ho sebelisa ECoCr-A (Cobalt 6) kapa ECoCr-B (Cobalt 12). Ha e le hantle, sebopeho, se joalo ka hore lik'habohaedreite tsa mantlha tse nang le hypereutectic li fumanoa ka har'a sebopeho se senyenyane. Tšobotsi ena e fa alloy khanyetso e phahameng ea ho tsofala e tsamaeang le phokotso ea ts'usumetso le khanyetso ea mafome. Ho thatafala ho hoholo ho boetse ho bolela hore tšekamelo e kholo e ka fokotsoa ka ho beha leihlo haufi-ufi mekhoa ea ho futhumatsa pele ho nako, mocheso oa interpass, le mekhoa ea ho futhumatsa kamora ho futhumatsa.
Leha di-depositi tsa cobalt-chromium di nolofala hanyane mochesong o phahameng, hangata di nkwa di sa sebediswe ho tjheseletsa. Di-electrode tsa ECoCr-C di sebedisetswa ho bokella dintho tse kang di-mixer, di-rotor kapa kae kapa kae moo ho kopanang le ho kgohlahala ho matla le tshusumetso e tlase.
AWS A5.13 ECOCR-E:
Cobalt 21
Li-electrode tsa ECoCr-E li na le matla le ho ductility tse ntle haholo mochesong o fihlang ho 1600°F (871°C). Li-depositi li hanela ho thothomela ha mocheso, ho oxidiza le ho fokotsa sepakapaka. Ts'ebeliso ea pele ea mefuta ena ea li-alloy e fumanoe likarolong tsa enjene ea jet tse kang mahare a turbine le li-vane.
Depositi ke motsoako o tiileng o otlolohileng o nang le karolo e tlase ea carbide ea boima mohahong o monyenyane. Ka hona, motsoako o tiile haholo 'me o tla sebetsa ka thata. Depositi e na le khanyetso e ntle ea ho ikamahanya le 'mele 'me hape e hanela khoholeho ea cavitation haholo.
Li-electrode tsa ECoCr-E li sebelisoa moo ho hanyetsa ho thothomela ha mocheso ho leng bohlokoa. Litšebeliso tse tloaelehileng; tse tšoanang le tsa li-deposit tse entsoeng ka ho sebelisa li-electrode tsa ECoCr-A (Cobalt 6); li-guide rolls, li-hot extrusion le forging dies, li-shear blades tse chesang, li-tong bits, li-valve trim.
