Iingenelo zezitena zekhabhoni ze-magnesia zezi:ukuchasana nokhukuliseko lwe-slag kunye nokuchasana kakuhle kwe-thermal shock. Ngaphambili, ukungahambi kakuhle kwezitena ze-MgO-Cr2O3 kunye nezitena ze-dolomite yayikukuba zifunxa amacandelo e-slag, okubangela ukuchithwa kwesakhiwo, okukhokelela kumonakalo ongaphambi kwexesha. Ngokudibanisa igraphite, izitena zekhabhoni ze-magnesia zaphelisa le ntsilelo. Uphawu lwayo kukuba i-slag ingena kuphela kwindawo yokusebenza, ngoko ke i-reaction layer Ivalwe kwindawo yokusebenza, isakhiwo sine-peelling encinci kunye nobomi obude benkonzo.
Ngoku, ukongeza kwi-asphalt yemveli kunye nezitena ze-magnesia eziboshwe nge-resin (kubandakanywa nezitena ze-oyile ezifakwe kwi-magnesia),izitena carbon magnesia ezithengiswa kwimarike ziquka:
(1) Izitena ze-Magnesia zekhabhoni ezenziwe nge-magnesia equkethe i-96% ~ 97% MgO kunye negraphite 94% ~ 95% C;
(2) Izitena ze-Magnesia zekhabhoni ezenziwe nge-magnesia equkethe i-97.5% ~ 98.5% MgO kunye negraphite 96% ~ 97% C;
(3) Izitena ze-Magnesia zekhabhoni ezenziwe nge-magnesia equkethe i-98.5% ~ 99% MgO kunye ne-98% ~ C graphite.
Ngokomxholo wekhabhoni, izitena zekhabhoni ze-magnesia zahlulwe zibe:
(I) Izitena ezitshisiweyo ze-oyile ezifakwe kwi-magnesia (i-carbon content ngaphantsi kwe-2%);
(2) Izitena ze-carbon bonded magnesia (i-carbon content ngaphantsi kwe-7%);
(3) I-resin ye-Synthetic edibeneyo i-magnesia ye-carbon brick (i-carbon content i-8% ~ 20%, ukuya kuma-25% kwiimeko ezimbalwa). I-Antioxidants isoloko yongezwa kwi-asphalt / i-resin edibeneyo yezitena zekhabhoni ze-magnesia (i-carbon content yi-8% ukuya kwi-20%).
Izitena zekhabhoni ze-Magnesia ziveliswa ngokudibanisa isanti ye-MgO ecocekileyo kunye ne-scaly graphite, i-carbon black, njl. Inkqubo yokuvelisa ibandakanya ezi nkqubo zilandelayo: ukutyunyuzwa kwezinto eziluhlaza, ukuhlolwa, ukulinganisa, ukuxuba ngokuhambelana noyilo lwefomula yezinto kunye nokusebenza kokumisela imveliso, ngokutsho indibaniselwano Iqondo lobushushu bohlobo lwe-ejenti liphakanyiswa ukuba lisondele kwi-100 ~ 200℃, kwaye lixutywe kunye ne-binder ukufumana into ebizwa ngokuba yi-MgO-C yodaka (umxube womzimba oluhlaza). Izinto zodaka ze-MgO-C usebenzisa i-synthetic resin (ikakhulukazi i-phenolic resin) ibunjwe kwindawo ebandayo; izinto zodaka ze-MgO-C ezidityaniswe ne-asphalt (zitshiswe kwisimo se-fluid) zibunjwe kwindawo eshushu (malunga ne-100 ° C) zenza. Ngokobungakanani bebhetshi kunye neemfuno zokusebenza kweemveliso ze-MgO-C, izixhobo zokungcangcazela, izixhobo zokuxinanisa, izixhobo ezikhuphayo, izicinezeli ze-isostatic, oomatshini bokushicilela abashushu, izixhobo zokufudumeza, kunye nezixhobo ze-ramming zingasetyenziswa ukwenza izinto zodaka zeMgO-C. ukuya kwimilo efanelekileyo. Umzimba we-MgO-C owenziweyo ufakwe kwi-oven kwi-700 ~ 1200 ° C yonyango lokushisa ukuguqula i-agent edibeneyo kwikhabhoni (le nkqubo ibizwa ngokuba yi-carbonization). Ukuze ukwandise ubuninzi bezitena zekhabhoni ze-magnesia kunye nokuqinisa ukudibanisa, iifayili ezifana nezibophelelo nazo zingasetyenziselwa ukukhulelwa kwezitena.
Kule mihla, i-synthetic resin (ingakumbi i-phenolic resin) isetyenziswa kakhulu njenge-agent ebophelelayo yezitena zekhabhoni ze-magnesia.Ukusetyenziswa kwe-synthetic resin ebotshelelwe izitena zekhabhoni zemagneti kunezi nzuzo zisisiseko zilandelayo:
(1) Imiba yokusingqongileyo ivumela ukwenziwa nokuveliswa kwezi mveliso;
(2) Inkqubo yokuvelisa iimveliso phantsi kweemeko zokuxuba okubandayo igcina amandla;
(3) Imveliso inokucutshungulwa phantsi kweemeko ezinganyangekiyo;
(4) Xa kuthelekiswa ne-tar asphalt binder, akukho sigaba seplastiki;
(5) Ukunyuka kwekhabhoni (i-graphite engaphezulu okanye amalahle e-bituminous) kunokuphucula ukuxhatshazwa kokugqoka kunye nokuxhatshazwa kwe-slag.
Ixesha lokuposa: Feb-23-2024
