Mehato e mene ea Motheo ea Tungsten Carbide Sintering Process

Tungsten carbide, eo hape e tsejoang e le carbide e entsoeng ka samente, e na le litšobotsi tsa ho thatafala ho phahameng, matla a phahameng, ho hanyetsa ho apara hantle le ho tiea, ho hanyetsa mocheso o babatsehang, le ho hanyetsa kutu. 'Me e atisa ho sebelisoa ho etsa lisebelisoa tsa ho cheka, lisebelisoa tsa merafo, lisebelisoa tsa ho itšeha, likarolo tse sa sebetseng, tšepe e shoang, li-bearings tse nepahetseng, li-nozzles, joalo-joalo.

Sintering ke mokhoa o ka sehloohong oa ho etsa lihlahisoa tsa tungsten carbide. Ho na le mekhahlelo e mene ea mantlha ea ts'ebetso ea tungsten carbide sintering.

1. Mokhahlelo oa pele ho sintering (Ho tlosoa ha moemeli oa sebopeho le sethala sa pele ho sintering)

Ho tlosoa ha moemeli oa ho etsa: Ka ho eketseha ha mocheso oa pele oa sintering, moemeli oa ho bopa butle-butle oa senyeha kapa oa fetoha mouoane, kahoo o tlosa setsing sa sintered. Ka nako e ts'oanang, moemeli oa ho etsa o tla eketsa carbon ho setsi sa sintered ho feta kapa ka tlase, 'me palo ea keketseho ea carbon e tla fapana ho ea ka mofuta le bongata ba moemeli oa ho etsa le mokhoa oa sintering.

Li-oxide tse holim'a phofo li fokotsehile: mocheso oa sintering, hydrogen e ka fokotsa li-oxide tsa cobalt le tungsten. Haeba motsoako o ka tlosoa ka har'a vacuum 'me o sintered, karabelo ea carbon-oxygen e ke ke ea e-ba matla haholo. Ha khatello ea maikutlo pakeng tsa likaroloana tsa phofo e felisoa butle-butle, phofo ea tšepe e tlamang e tla qala ho hlaphoheloa le ho tsosolosa, bokaholimo bo tla qala ho ata, 'me matla a compact a tla eketseha ka tsela e nepahetseng.

Mothating ona, mocheso o ka tlase ho 800 ℃

2. Solid-phase sintering stage (800℃——eutectic mocheso)

800 ~ 1350C ° tungsten carbide phofo ea boholo ba lijo-thollo li hola 'me li kopana le phofo ea cobalt ho fetoha eutectic.

Mocheso pele ho ponahalo ea karolo ea mokelikeli, karabelo ea karolo e tiileng le ho hasana li matlafatsoa, ​​phallo ea polasetiki e ntlafatsoa, ​​'me' mele o sintered o fokotseha haholo.

3. Mokelikeli phase sintering sethaleng (eutectic mocheso - sintering mocheso)

Ka 1400 ~ 1480C ° phofo e kopanyang e tla qhibiliha ho ba mokelikeli. Ha karolo ea mokelikeli e hlaha setsing sa sintered, shrinkage e phethoa ka potlako, e lateloa ke phetoho ea crystallographic ho etsa sebopeho sa motheo le sebopeho sa motsoako.

4. Sethala sa ho pholisa ( Mocheso oa sintering - mocheso oa kamore)

Mothating ona, sebopeho le sebopeho sa mokhahlelo oa tungsten carbide se fetohile ka maemo a fapaneng a pholileng. Karolo ena e ka sebelisoa ho futhumatsa tungsten carbide ho ntlafatsa thepa ea eona ea 'mele le ea mochini.

Haeba u thahasella lihlahisoa tsa tungsten carbide 'me u batla boitsebiso bo eketsehileng le lintlha tse ling, u ka RE THUTA ka mohala kapa ka poso ka letsohong le letšehali, kapa U RE THUSE MAIL botlaaseng ba leqephe.