Silicon nitride (SiC) ijecha re quartz, calcined petroleum coke (kana coaking yemarasha), slag yehuni (kugadzirwa kwe green silicon nitride kunofanira kuwedzerwa munyu) nezvimwe zvinhu zvakagadzirwa, kuburikidza ne electric heating furnace continuous high temperature smelter. Silicon nitride sealing ring chigadzirwa che silicon nitride chakagadzirwa nezvinhu zve silicon carbide. Saka ndeapi mashandisirwo akakosha e reaction-sintered silicon carbide uye hunhu hwe seals?
Kushandiswa kwakakosha kwesilicon carbide inonyungudutsa reaction sintering:
1. Kushandiswa kwesimbi muindasitiri yezvigadzirwa kunosanganisira kushandisa silicon nitride inodzivirira kupisa, simba rayo guru, conductivity yakanaka yekupisa, inodzivirira kukanganiswa, kupisa zvinhu zvisina kunanga zvinogara zvichipisa zvakanyanya, zvakaita setangi fractionation furnace. Rectifier furnace tray, aluminum electrolytic cell, copper melting furnace lining, zinc powder furnace arc, thermocouple protection tube, nezvimwewo.
2. Kushandiswa kwesimbi muindasitiri yesimbi kunoshandisa silicon nitride. Kudzivirira kupisa, kuramba kukwesha. Nekuda kwekupisa kwayo kwakanaka, inoshandiswa kubatanidza mavhiri makuru nepakati ekugadzira simbi kuti iwedzere hupenyu hwebasa rayo.
3. Indasitiri yesimbi inoshandisa silicon nitride simba rayo riri rechipiri kune simbi yegoridhe, yakasimba yekupfeka, yakasimba yekupfeka, yakanyanya kusakara yepombi, centrifugal impeller, pombi yepombi, michina inotenderera, kuchera migodhi, yakanaka yekupfeka. Hupenyu hwebasa hwepurasitiki hwakapetwa ka5 kusvika makumi maviri, uye ndeimwe yezvinhu zvakanakisa zvemitambo yendege.
4. Kushandiswa kwehuwandu hwekupisa muhuwandu hwezvigadzirwa zvekuvaka zvekushongedza zveporcelain nejecha wheel. Hunhu hwekupisa kunopenya uye kupisa kwakanyanya, kugadzirwa nekugadzirwa kwechitofu chesimbi hakungoderedzi huwandu hwechitofu chete, asiwo kunovandudza huwandu hwekuchengetera uye kunaka kwechigadzirwa chechitofu, uye kuderedza nguva yekugadzira, inova chinhu chakanakira kupisa pigment yeceramic.
5. Kushandiswa kwekudzivirira zvakatipoteredza uye simba rekuchengetedza simba kune simba rakanaka uye kunodzivirira kupisa, uye chinochinja-chinja kupisa chinochengetedza 20%, kushandiswa kwemafuta 20%, kushandiswa kwemafuta 35%, uye kushanda zvakanaka kwekugadzira kunowedzerwa ne20-30%. Kunyanya, kuramba kupfeka kwepombi yemvura inoshandiswa mufekitari yekugadzira migodhi kwakapetwa ka6 kusvika ka7 pane zvinhu zvesimbi zvakajairwa.
Zvinonyanya kukosha zvemhete yechisimbiso chesilicon carbide ine reaction-sintered:
1, kudzivirira kupisa
Nekuda kwehunhu hwezvinhu zvesilicon nitride, silicon nitride seals dzine hunhu hwekupisa kwakanyanya, uye maitiro akasiyana ane mhando dzakasiyana dzehunhu hwekupisa. Silicon nitride seals dzinoshandiswa pakuita reaction-sintered zvinogona kuiswa kubva pa1300 degrees, uye silicon nitride seals dzisina kumanikidzwa dzinogona kusvika 1600 degrees.
2. Kuramba ngura
Mhete yekusimbisa silicon nitride inogona kushandiswa kubva muchimiro chakasimba cheasidhi uye alkali, uye mhedzisiro yekusimbisa haisi nyore kuderedza.
3, kuramba kupfeka
Mhete dzesimbi dzesilicon carbide dzakagadzirwa ne reaction-sintered zvichienderana nemaitiro e carding, kuitira kuti purani yacho ive yakanyatsojeka uye yakapfava, pamwe chete nekusapera kwezvinhu zvesilicon carbide, mhete dzesimbi dzesilicon nitride dzinogona kushandiswa kukweshana. Hunhu hwekupisa kwakanyanya hunoenderera mberi hahuderedzi nyore nyore hunhu hwekukuvara.
4. Kugona kushanda zvakanaka
Reactivity sintered silicon carbide mbishi zvinhu chero bedzi paine imwe tekinoroji yekugadzirisa, inogona kuchinjwa kuita mapatani akasiyana-siyana emvere dzemakwai, secondary processing, kuti vatengi vade zvinhu.
Nguva yekutumira: Gunyana-11-2023