Ts'ebetso ea tlhahiso le ts'ebetso ea ho bopa ea molamu oa carbide o entsoeng ka samente

Themolamu oa carbide o entsoeng ka samenteke molamu o chitja o samenteng oa carbide, o tsejoang hape e le molamu oa tšepe oa tungsten, ka bokhutšoanyane, lere le chitja la tšepe ea tungsten kapa lere la setho se samente sa carbide. Carbide e entsoeng ka samente ke lisebelisoa tse entsoeng ka metsoako ea tšepe ea refractory (mohato o thata) le tšepe e kopantsoeng (mohato oa bonding) o hlahisoang ke phofo ea metallurgy. Tungsten carbide e boetse e tsejoa e le tungsten steel, ha re bua, ke lebitso la lehae la tse fapaneng.

Ho na le mekhoa e 'meli ea ho etsa tlhahiso ea lithupa tse pota-potileng carbide: e' ngoe ke extrusion molding, le extrusion molding ke mokhoa o loketseng oa ho hlahisa melamu e telele. E ka fokotsoa ho bolelele bofe kapa bofe bo lakatsehang ke mosebelisi nakong ea ts'ebetso ea extrusion. Leha ho le joalo, bolelele ba kakaretso bo ke ke ba feta 350mm. E 'ngoe ke die molding, e leng mokhoa o loketseng oa ho hlahisa thepa e khutšoanyane ea bar. Joalokaha lebitso le bontša, phofo ea carbide e hatelloa hore e be sebopeho ka hlobo. Metsoako e thata le litšepe tse tlanngoeng tse entsoeng ka litšepe tse refractory ha e le hantle ha li fetohe mocheso oa 500 ° C ka ts'ebetso ea metallurgy ea phofo, 'me e ntse e na le boima bo phahameng ho 1000 ° C. Tungsten carbide e sebelisoa haholo ho kutu le letoto la thepa e ntle haholo, haholo-holo ho thatafala ha eona le ho se mamelle, esita le lisebelisoa tsa lisebelisoa, joalo ka lisebelisoa tse phetholang, lisebelisoa tsa ho sila, lisebelisoa tsa ho itšeha, li-drill, lithipa, joalo-joalo, tse sebelisetsoang ho khaola tšepe e entsoeng ka tšepe, litšepe tse se nang ferrous, polasetiki, fiber ea lik'hemik'hale, graphite, khalase, lejoe le tšepe e tloaelehileng. E ka sebelisoa hape bakeng sa ho seha leloala, khabinete ea ho omisa, mochini o kopanyang oa Z, mochini oa pelletizing) -- ho hatella (ka mochini oa khatiso oa hydraulic kapa mochini oa khatiso oa extrusion) - ho chesa tšepe e sa tšoareng mocheso, tšepe e sa hloekang, tšepe e phahameng ea manganese, tšepe ea sesebelisoa le lisebelisoa tse ling tse thata ho sila (sebopi se futhumatsang, sebōpi se kopantsoeng kapa sebōpi se tlase sa HIP).

Thepa e tala ke mobu o mongobo, o omisitsoeng, o kopantsoeng le sekhomaretsi ka mor'a ho nyalana, ebe o omisoa ka holong ea hlobo kapa oa extruded bakeng sa ho imolla khatello ea kelello, 'me qetellong o thehoa ka ho senya le ho sila ho etsa motsoako oa ho qetela oa gross gross diameter bar material. Ho penya lipheletsong tse peli ho tla senya lintho tse ling. Ha bolelele ba tungsten carbide e nyane e bophara ba lisebelisoa tsa molamu o pota-potileng, bothata ba tlhahiso ea extrusion ea thepa e chitja ke hore potoloho ea tlhahiso e telele. Extrude 3mm ka tlase ho sila ea cylindrical ho ntlafatsa moeli oa tšenyo ea boea. Ha e le hantle, mathata a ho otloloha le ho pota-pota a ka ntlafatsoa ka ho sila ka cylindrical nakong ea morao-rao.

E 'ngoe ke ho etsa hlobo, e leng mokhoa oa tlhahiso ea molamu o mokhutšoane, joalo ka ha lebitso le bolela, hlobo e tla hatella phofo e entsoeng ka samente ea carbide ho theha. Melemo ea mokhoa ona oa ho bopa bareng ea carbide: e 'ngoe e ka bōptjoa ka nako, e leng mokhoa oa ho hlahisa li-bar tse khutšoanyane. Joalo ka ha lebitso le fana ka maikutlo, e bopa, e fokotsa litšila. Nolofatsa mokhoa oa ho itšeha le ho boloka potoloho ea lintho tse omeletseng tsa mokhoa oa extrusion. Nako e khutsufalitsoeng ka holimo e ka boloka matsatsi a 7-10 bakeng sa bareki.

Ha e le hantle, ho hatella isostatic le hona ke ho etsa lefu. Isostatic pressing ke mokhoa o nepahetseng ka ho fetisisa oa ho etsa lithupa tse kholo le tse telele tse entsoeng ka samente ea carbide. Ka tiiso ea piston e ka holimo le e ka tlaase, pompo ea khatello e tla kenya motsoako oa metsi pakeng tsa silinda ea khatello e phahameng le rabara ea khatello, ka rabara ea khatello e tla fetisetsa matla a holo ho etsa hore ho be le sekontiri sa samente sa carbide powder.