Maxay yihiin qalabka dib -u -celinta ee loo isticmaalo foornooyinka warshadaha aluminium?

Agabyada dib -u -celiya ee foornooyinka warshadaha ee aluminiumku guud ahaan waa leben -jaban iyo kaabado, laakiin xulashadu aad bay u kala duwan tahay iyadoo loo eegayo qaybo kala duwan. Diidmada foornooyinka warshadaha aluminiumku waxay u baahan yihiin inay yeeshaan xoog sintering sare, dhexroor dalool yar, ka kooban SiO2, Na2O, iyo K2O. Dahaarka foornadu waa inuu sidoo kale lahaadaa wax -qabad wanaagsan oo heerkulkiisu yahay 800 ° C. Tifaftiraha Kerui Refractories ayaa soo uruuriyay agabyo iska celiya oo caadi ah oo loogu talagalay foornooyinka warshadaha aluminium ee tixraacaaga kaliya.

Lakabka dahaarka kaamerada ee alwaaxa rogaha ee alumina waxaa daboolay lakab ka mid ah fibre -gareeyaha oo laga dareemay qolofka, ka dibna waxaa lagu dhisay dhulka diatomaceous, leben sabeeya sabuurad ah ama lebenkii dhoobada fudud, qaarna hadda waxaa lagu beddelay shumacyo diidan oo fudud. Dahaarka shaqada ee aagga preheating waxaa lagu dhisay leben dhoobo ah, iyo lebenkii alumina-sare ama fosfate-ku-xirnaa foornada alumina-ga sare ayaa loo isticmaalaa aagga kalkaalisada heerkulka sare.

Waqtigan xaadirka ah, jaangooyooyin aan qaabaysnayn ayaa si weyn loogu isticmaalay warshadaha aluminiumka, sida kaalshiyamka aluminate-ka hooseeya aluminate-isku-dhafan ee aagagga calcination-ka, iyo fiber-ka birta ayaa xoojiyay kaabayaasha adkaysi u leh afafka dabka, maaskaro, iyo dabo qallalan.

Foornada tooshka ah ayaa ah in lagu rakibo ciddiyaha barroosinka birta kuleylka u adkaysta ama barroosinka dhoobada qolofka foornada, ka dibna ku faafi lakabka 20mm fiber-ka qafiif ah oo la dareemo, ugu dambaynna ku shub 200-300 dhumucyo qafiif ah oo qafiif ah.

Dahaarka shaqada ee foornada reverberatory ee foornada dhalaalaysa aluminium ee la xiriirta aluminium la shubay waxaa guud ahaan lagu dhisay leben-alumina sare leh oo ka kooban Al2O3 oo ah 80-85%; marka la dhalaalayo aluminium bir-daahir ah, waxaa la isticmaalaa lebenkii mullite ama lebenkii corundum. Jiirada dhagaxa, ku rakib aluminium qashin ah iyo qaybo kale oo si fudud u burburay oo duugoobay, oo isticmaal nitride silikoon si aad isugu darto lebenka silikoon nitride. Weelasha aluminiumka ah ee soo qulqulaya iyo meelaha aluminiumka ah waxaa si xun u dahaadhay aluminium la shubay. Guud ahaan, isku-xidhka ama silikoon nitride oo ku xidhan lebenka carbide silikon carbide ayaa la isticmaalaa, iyo lebenka zircon-ka ayaa sidoo kale loo adeegsadaa sidii gogosha. Dahaarka foornada ee aan la xiriirin aluminiumka la shubay guud ahaan wuxuu isticmaalaa lebenkii dhoobada, dhoobadii dhagaxa ahayd ama balaastiig jaban.

Qalabka dahaarka ee foornada induction ee loogu talagalay dhalaalinta aluminiumka iyo aluminiumka aluminiumku guud ahaan waa walxo qalalan oo qalalan, ama carbide silikoon ah ayaa lagu daraa maaddada ramming qalalan ee alumina, taas oo aan u nuglayn daadinta dareeraha.