Yintoni ukuxhathisa ukunxiba izitena ezikhanyelayo inento yokwenza nayo?

Isitena esichasayo sisixhobo esiqhelekileyo sokuchasa. Kufuneka sivavanye yonke imiba yemveliso ngexesha lenkqubo yokuvelisa. Ekubeni le mveliso isetyenziselwa kakhulu ukwakhiwa kweendonga zobunjineli, iimfuno zokumelana kwayo nokunxiba ziphezulu. Ukuba ufuna ukuphucula ukumelana kwayo nokunxiba, kufuneka uqale ususe izinto ezichaphazela ukuxhathisa kwemveliso. Emva koko umbuzo ngulo, yintoni ukunyanzeliswa kwezitena eziphikisayo malunga nayo?

Ukuxhatshazwa kwe-abrasion yezitena eziphikisayo kuxhomekeke ekubunjweni kwayo kunye nesakhiwo. Xa imveliso yenziwe nge-polycrystals eshinyeneyo eyenziwe yikristale enye, ukuxhathisa kwayo kwe-abrasion kuxhomekeke kubunzima beekristale zamaminerali ezenza izinto. Ubunzima obuphezulu, ukuxhatshazwa okuphezulu kwezinto eziphathekayo. Xa iikristale zamaminerali zingekho i-isotropic, i-crystal grains ilungile kwaye ukuchasana kokugqoka kwezinto kuphezulu. Xa izinto eziphathekayo ziqulunqwe ngamanqanaba amaninzi, ukunyanzeliswa kwayo kokugqoka kuhambelana ngokuthe ngqo nobuninzi bobuninzi okanye i-porosity yezinto eziphathekayo, kwaye inxulumene namandla okudibanisa phakathi kwamacandelo.

Ngoko ke, kuhlobo oluthile lwezitena kwiqondo lokushisa lokushisa, ukuchasana kwayo kwe-abrasion kuhambelana namandla ayo oxinzelelo. Ukuba umenzi uqwalasela le miba ingentla xa ehlamba izitena eziphikisayo, iimveliso eziveliswayo zinokumelana okungcono kwe-abrasion. Ukongezelela, ukunyanzeliswa kokugqoka kwemveliso kuhambelana nobushushu ngexesha lokusetyenziswa. Ezinye iimveliso, ezifana nezitena eziphezulu ze-alumina, zithathwa ngokuba kubushushu (ezinje ngaphakathi koluhlu lwe-elastic olungaphantsi kwe-700-900℃). Ukuphakama kweqondo lokushisa, okuphantsi kokumelana nokunxiba. Inokuthi ithathelwe ingqalelo ukuba xa izinga lokushisa linyuka, ukunyanzeliswa kokugqoka kunciphisa njengoko i-modulus elastic yesitena ikhula.

Okokuqala, abantu banokwazi kwakhona ukubunjwa kweekhemikhali zesi sixhobo. Ngenxa yokuba iifektri zezitena ezixhathisayo zisathandwa kakhulu kubomi babantu. Kwaye sonke siyazi ukuba amacandelo ayo aphambili amisela umgangatho kunye neempawu ze-refractory. Ngokuqhelekileyo, izinto eziluhlaza zezinto eziphikisayo zivela kwizinto ezininzi eziphikisayo. Ke ngoko, siqala ukusebenzisa ezi zinto zikrwada ngakumbi nangakumbi ebomini bethu.

Okwesibini, siyazi ukuba ineempawu ezikhethekileyo ezifana nokuxinana kwesambuku. Ngenxa yokuba izitena ezinjalo eziphikisayo zifuna ukujamelana namava okushisa aphezulu kakhulu, abantu nabo bafuna ukuba basebenze ngokuqhelekileyo kumaqondo aphezulu. Ngoko ke, ubunzima beyunithi nganye bunobuninzi obuphezulu, oku kuthetha ukuba ukunyanzeliswa kwezitena eziphikisayo kukuhle, kwaye amandla okuzisa anokuba phezulu.

Kamva, izitena eziphikisayo nazo zineemfuno eziphezulu ze-porosity. Kodwa namhlanje, abantu kufuneka benze iimfuno ezithile kwinkqubo yokuvelisa imveliso, kodwa njengomvelisi, balawula ngokungqongqo ii-pores ezibonakalayo kwaye banomgangatho ophezulu kakhulu. Ngakolunye uhlangothi, ukuxhathisa ukothuka kwe-thermal kwesi sixhobo kuhle kakhulu, kunye nokukwazi ukumelana nokutshintsha ngokukhawuleza kwiqondo lokushisa ngaphandle kokutshatyalaliswa.

Inokuzisa iingenelo ezininzi kakhulu ebantwini. Kukho izinto ezininzi zemichiza emitsha kubomi babantu, kwaye ezi zenzelwe ukwenza ubomi babantu bubengcono. Imathiriyeli ye-Refractory Isitena esinqabileyo sisixhobo esiyimfuneko kwimveliso yemizi-mveliso. Izinto ezichasayo yipropathi yeekhemikhali ezinzile kakhulu.