Mekhoa e Mebeli ea ho Sintering

Lihlahisoa tsa Tungsten carbide li entsoe ka tungsten carbide le likarolo tse ling tsa tšepe tse kang cobalt joalo ka setlamo. Lihlahisoa tsa Tungsten carbide li ka sebelisoa haholo ho seha litšepe, likotoana tsa ho cheka oli le ho etsa tšepe.

Tungsten carbide sintering e tlameha ho laoloa ka hloko ho fumana sebopeho se nepahetseng sa microstructure le lik'hemik'hale. Lits'ebetsong tse ngata, tungsten carbide e entsoe ka phofo ea metallurgy, e kenyelletsang sintering. Lihlahisoa tsa Tungsten carbide hangata li mamella ho roala le ho tsitsipana maemong a thata. Lits'ebetsong tse ngata tsa tšepe tse sehang, li-cutters tsa tungsten carbide tse apereng ho feta 0.2-0.4 mm li ahloloa hore li hlakotsoe. Ka hona, thepa ea tungsten carbide e bohlokoa.

Ho na le mekhoa e 'meli ea mantlha ea ho etsa lihlahisoa tsa sinter tungsten carbide. E 'ngoe ke hydrogen sintering, 'me e 'ngoe ke vacuum sintering. Hydrogen sintering e laola sebopeho sa likarolo ka phase reaction kinetics ho hydrogen le khatello; vacuum sintering ke ho laola motsoako oa tungsten carbide ka ho liehisa kinetics ka tlas'a vacuum kapa tikoloho e tlase ea moea.

Vacuum sintering e na le mefuta e mengata e fapaneng ea lits'ebetso tsa indasteri. Ka linako tse ling, basebetsi ba ka sebelisa khatiso e chesang ea isostatic, e leng bohlokoa hape bakeng sa ho etsa lihlahisoa tsa tungsten carbide.

Nakong ea hydrogen sintering, hydrogen ke sepakapaka se fokotsang. Hydrogen e ka 'na ea itšoara ka lerako la sebōpi sa sintering kapa graphite le ho fetola likarolo tse ling.

Ha ho bapisoa le hydrogen sintering, vacuum sintering e na le melemo e latelang.

Pele ho tsohle, vacuum sintering e ka laola sebopeho sa sehlahisoa hantle haholo. Tlas'a khatello ea 1.3 ~ 133pa, tekanyo ea phapanyetsano ea carbon le oksijene pakeng tsa sepakapaka le motsoako o tlaase haholo. Ntho e ka sehloohong e amang sebopeho ke litaba tsa oksijene ka har'a likaroloana tsa carbide, kahoo vacuum sintering e na le molemo o moholo tlhahisong ea indasteri ea sintered tungsten carbide.

Taba ea bobeli, nakong ea vacuum sintering, ho bonolo haholoanyane ho laola sistimi ea sintering, haholo lebelo la ho futhumatsa, ho fihlela litlhoko tsa tlhahiso. Vacuum sintering ke ts'ebetso ea batch, e tenyetsehang ho feta sintering ea hydrogen.

Ha o etsa lihlahisoa tsa tungsten carbide, tungsten carbide e tlameha ho ba le mekhahlelo e latelang:

1. Ho tlosoa ha moemeli oa ho bōpa le sethaleng sa ho chesa pele;

Ts'ebetsong ena, mocheso o lokela ho eketseha butle-butle, 'me mohato ona o etsahala ka tlase ho 1800 ℃.

2. Mokhahlelo o tiileng oa sintering

Ha mocheso o ntse o eketseha butle-butle, sintering e tsoela pele. Sekhahla sena se etsahala pakeng tsa 1800 ℃ le mocheso oa eutectic.

3. Mokelikeli mohato sintering sethaleng

Nakong ena, mocheso o tsoela pele ho phahama ho fihlela o fihla mocheso o phahameng ka ho fetisisa nakong ea sintering, mocheso oa sintering.

4. Sethala sa ho pholisa

Carbide e entsoeng ka samente, ka mor'a ho sila, e ka tlosoa sebōping sa sintering 'me ea pholile mocheso oa kamore.

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.