Ukusetshenziswa okubalulekile kwe-react-sintered silicon carbide kanye nezici zokuvala izindandatho

I-Silicon nitride (SiC) isihlabathi se-quartz, i-coke ye-petroleum e-calcined (noma i-coking yamalahle), i-wood slag (ukukhiqizwa kwe-silicon nitride eluhlaza idinga ukungeza usawoti) nezinye izinto zokusetshenziswa, ngokusebenzisa isincibilikisi sokushisa sikagesi esiqhubekayo sokushisa okuphezulu. I-Silicon nitride sealing ring ingumkhiqizo we-silicon nitride owenziwe nge-silicon carbide material. Ngakho-ke yiziphi izinhlelo zokusebenza ezibalulekile ze-react-sintered silicon carbide kanye nezici zezimpawu?

Ukusetshenziswa okubalulekile kwe-reaction sintering silicon carbide:

1. Ukusetshenziswa kwemboni yemikhiqizo yensimbi ukusetshenziswa kokumelana nokushisa kwe-silicon nitride, amandla aphezulu, ukuguquguquka okuhle kokushisa, ukumelana nomthelela, izinga lokushisa eliphezulu eliqhubekayo lezinto ezingaqondile zokushisa okungaqondile, njengesithando somlilo sethangi. Ithreyi yesithando somlilo, iseli ye-aluminium electrolytic, ulayini lwesithando somlilo wethusi, i-zinc powder furnace arc, ishubhu lokuvikela i-thermocouple, njll.

2. Ukusetshenziswa kwemboni yensimbi kusebenzisa ukufakwa kwe-silicon nitride. Ukumelana nokushaqeka kokushisa, ukumelana nemihuzuko. Ngenxa ye-thermal conductivity enhle, isetshenziselwa ukuhlanganisa iziqhumane ezinkulu neziphakathi nendawo ukuze kuthuthukiswe impilo yesevisi.

3. Imboni ye-metallurgical concentrator isebenzisa amandla e-silicon nitride ingeyesibili kuphela ensimbi yegolide, ukumelana nokugqokwa okuqinile, ukumelana nokugqokwa okuqinile, ukumelana nokugqokwa okuphezulu kwepayipi, i-centrifugal impeller, igumbi lokumpompa, imishini ejikelezayo, ulwelwesi lwezimayini olufanelekile lwezinto zokusetshenziswa, ukumelana okuhle kokugqoka. Impilo yesevisi yepulasitiki izikhathi ezi-5 kuye kwezingama-20, futhi ingenye yezinto ezisetshenziswayo ezifanele ezinkundleni zemidlalo zezindiza.

4. Ukusetshenziswa kwe-coefficient yokudlulisa ukushisa ezingeni lokukhiqiza kwezimboni zezinto zokwakha zokuhlobisa i-porcelain nezingcezu zamasondo esihlabathi. Izici zokushisa okukhazimulayo kanye nomfutho ophezulu wokushisa, ukukhiqizwa nokukhiqizwa kweshidi lensimbi yensimbi akukwazi nje ukunciphisa ivolumu yomlilo, kodwa futhi kuthuthukise ivolumu yokugcina kanye nekhwalithi yomkhiqizo wehhashi, futhi kunciphise isikhathi sokukhiqiza, okuyinto engaqondile efanelekile. impahla yokudubula kwezingulube ze-ceramic.

5. Ukusetshenziswa kokuvikelwa kwemvelo kanye nezinga lokonga amandla kunomoya omuhle wokushisa nokumelana nokushisa, futhi umshini wokushisa usindisa u-20%, ukusetshenziswa kukaphethiloli 20%, ukusetshenziswa kukaphethiloli 35%, kanye nokusebenza kahle kokukhiqiza kwanda ngo-20-30%. Ikakhulukazi, ukumelana nokugqokwa kwepayipi lokukhishwa kwamanzi elisetshenziswa embonini yokucubungula izimayini izikhathi ezi-6 kuya kweziyi-7 kunezinto ezijwayelekile eziyinhlanganisela yensimbi.

Izici zendandatho ye-Reaction-sintered silicone carbide seal:

1, ukumelana nokushisa

Ngenxa yezici zezinto ze-silicon nitride, ama-silicon nitride seal anokumelana nokushisa okuphezulu, futhi izinqubo ezahlukene zinezinhlobo ezahlukene nezici zokumelana nokushisa. Izigxivizo ze-silicon nitride ze-Reaction-sintered zingasetshenziswa ukusuka kumadigri angu-1300, futhi izigxivizo ze-silicon nitride ezingenakucindezela zingafinyelela ku-1600 degrees.

2. Ukumelana nokugqwala

I-silicon nitride sealing ring ingasetshenziswa kusukela ku-asidi eqinile nemvelo ye-alkali, futhi umphumela wokuvala akulula ukunciphisa.

3, ukumelana nokugqoka

Amandandatho e-Reaction-sintered silicon carbide seal ngokuya ngenqubo ethile yamakhadi, ukuze icebo linembe kakhulu futhi libushelelezi, kuhlanganiswe nokumelana nokugqokwa kwezinto ze-silicon carbide, izindandatho ze-silicon nitride seal zingasetshenziswa ukuhlikihla zodwa. Izici zokushisa eziqhubekayo azinciphisi kalula izici zomonakalo.

4. I-Ductility

I-reactivity sintered silicon carbide izinto zokusetshenziswa inqobo nje uma kunobuchwepheshe obuthile bokucubungula, ingaguqulwa ibe amaphethini ahlukahlukene ombungu woboya, ukucutshungulwa kwesibili, ukwenza abathengi bafune izimpahla.