Iimpawu ze-White Fused Alumina kwi-Refractory Coatings
I-alumina emhlophe exutyiweyo Kwizinto zokugquma ezinganyangekiyo, izinto zokugquma zinezinga eliphezulu lokunyibilika, uzinzo oluhle kakhulu lobushushu, ukumelana nokugqwala kweekhemikhali okunamandla, ubulukhuni obuphezulu kunye nokumelana nokuguguleka, ukusebenza kakuhle, kunye nezinto zokugquma ezifanayo nezixineneyo. Iimpawu eziphambili zichazwe ngezantsi:
I. Indawo yokunyibilika ephezulu kunye nokuzinza kobushushu
I-alumina emhlophe exutyiweyo inendawo yokunyibilika ephezulu, igcina iipropati zomzimba nezekhemikhali ezizinzileyo phantsi kobushushu obuphezulu ngaphandle kokunyibilika okanye ukuguquguquka. Oku kuyenza ibe yinto efanelekileyo yokuphucula ukusebenza kokuchasana kweengubo, ukuqinisekisa ukuba zimelana nobushushu obude kwii-oven, kwii-oven zokunyibilikisa, nakwizixhobo ezifanayo ngaphandle kokusilela.
II. Ukumelana nokugqwala kweekhemikhali
I-alumina emhlophe exutywe kakuhle inokumelana kakhulu nezinto ezirhabaxa ezifana nee-asidi kunye nee-alkali, kwaye ayichaphazeleki ziikhemikhali ezininzi. Kwiindawo ezirhabaxa ngaphakathi kwimizi-mveliso efana nokucubungula iikhemikhali kunye ne-metallurgy,iingubo ezichasayoequlethe i-alumina emhlophe edityanisiweyo igcina uzinzo lwexesha elide, yandisa ubomi bezixhobo ngempumelelo.
III. Ukuqina Okuphezulu kunye nokumelana nokunxitywa
Ngobunzima beMohs obulandelayo emva kwedayimani kunye nesilicon carbide, i-alumina emhlophe edityanisiweyo inokumelana nokuguguleka okugqwesileyo. Imelana nokuchaphazeleka kunye nokugruzuka okuvela kulwelo olukhawulezayo kunye namaqhekeza ngelixa igcina umphezulu uthambile kwaye uthambile ngokuhamba kwexesha.
IV. Ukusebenza kakuhle kwesicelo
I-alumina emhlophe exutyiweyoingafakwa ngokutshiza, ukuxubha, okanye iindlela ezifanayo. Ngexesha lokufaka, isasazwa ngokulinganayo kwaye ibophane ngokuqinileyo ne-substrate ukuze yenze umaleko oxineneyo ongenakukhanyela. Ubunyulu bayo obuphezulu kunye nomxholo ophantsi wokungcola kunciphisa ubunzima bokusetyenziswa, kuphucula ukusebenza kakuhle, kuqinisekisa ukufana kunye noxinano lwengubo, kwaye kunciphisa umngcipheko wokuqhekeka okanye ukuxobuka.
V. Ukwaleka okufanayo nokuxineneyo
Iingubo ezirhabaxa ezine-alumina emhlophe edityanisiweyo zenza iileya ezixineneyo ngokulinganayo ngexesha lokusetyenziswa, zinciphisa ngempumelelo ukubola ngelixa zinyusa uxinano kunye namandla amakhulu. Oku kuncedisa ekuphuculeni ukusebenza kwengubo iyonke, kubandakanya ukurhabaxa, ukumelana nempembelelo, kunye nokumelana nokurhawuzelelwa.
VI. Ukumelana ne-Oxidation kunye nokumelana noxinzelelo lobushushu
I-alumina emhlophe exutywe kakuhle ibonakalisa ukumelana okunamandla kwe-oxidation kunye nokuwohloka okuncinci kweekhemikhali ngexesha lokusetyenziswa ixesha elide, okunciphisa kakhulu ukuqhekeka kwe-coating kunye nokuguga kwiindawo ezikhupha i-oxidation. Ukongeza, inyusa ukumelana nokutsha kobushushu kunye nokumelana nokukhukuliseka kwe-slag ngokusebenzisa iifomyula ezihlanganisiweyo ezinee-oxide ezahlukeneyo okanye ii-non-oxides.
VII. Imisebenzi emininzi kunye nokusetyenziswa ngokubanzi
Iingubo ezirhabaxa ezine-alumina emhlophe edityanisiweyo azifanelekanga nje kuphela ukukhusela izixhobo zoshishino ezishushu kakhulu kodwa zinokulungiswa ukuze zihlangabezane neemfuno ezahlukeneyo ngokulungisa ubungakanani beesuntswana.