Izitena eziphantsi zealumina

Izitena ze-alumina eziphezulu ezinqabileyo luhlobo lwezitena eziphezulu ze-alumina ezinganyangekiyo kubushushu obuphezulu kunezinye iimveliso ezifanayo, ezinokugcina ukusetyenziswa kwecoke kunye nokwandisa ukuphuma kwesinyithi. Ukuphindaphindwa kwezitena eziphezulu zealumina kuphezulu kunezitena zodongwe kunye nezitena ezinesilica, ezifikelela ku-1750 ~ 1790 ℃, ezizezinto eziphambili ezitshutshisayo. Ukunyuka okuphantsi kunye nezitena eziphezulu zealumina kusekwe kwithiyori “yamatye amathathu”. Khetha udaka lwe-bauxite noludibeneyo njengezona zinto ziphambili ezenziwayo, yongeza i-kyanite efanelekileyo, i-andalusite kunye ne-sillimanite, eyaziwa ngokuba “ngamatye amathathu”, lawula izikhombisi zomzimba kunye neekhemikhali kunye nokwakheka kwamasuntswana, sebenzisa i-bauxite + mullite + corundum kunye nezinye izinto eziluhlaza njengecebo lobuchwephesha . Kwinkqubo yokuvelisa, izikhombisi zempahla eluhlaza ziyafunyanwa kuqala zize zilawulwe. Emva kokutyunyuzwa, ukutshitshiswa, kunye nokuvavanywa, izithako zilinganiselwe ngokomlinganiso. Emva kokuxuba kunye nokugaya, ubungakanani bamasuntswana kunye nokufuma kodaka kulawulwa ukuhlangabezana neemfuno zokubumba. Abrasives abafanelekileyo banokulawula inani lezithonga, ubungakanani kunye nokudanyaza ukubumba, ngelixa kuvavanywa iimveliso ezigqityiweyo kunye nokusebenza ngokufanelekileyo ukuhlangabezana neemfuno ezichaziweyo. Inkqubo yemveliso: sebenzisa ubushushu obuphezulu obufakwe kwi-bauxite ephezulu, yongeza izinto ezinobushushu obuphezulu ngeqondo eliphantsi lokuhamba, kwaye wenze uxinzelelo oluphezulu lwokwenza ubushushu kunye nobushushu obuphezulu. Inempawu zamandla aphezulu, inqanaba eliphantsi lokuhamba kunye nobushushu obuphezulu bokusebenza. Iyasetyenziswa ngokubanzi kwiziko lokufaka iziko kunye nezitena zokujonga ubushushu obuphezulu kunye nomlilo oshushu.

Iimpawu Product:

1. Izinga eliphantsi lokuhamba kunye neqondo elincinci lokushisa okuphezulu.

2. Ubushushu obuthambisa umthwalo buphezulu.

3. Ukuchasana nefuthe elifanelekileyo.

4. Ubushushu obuphezulu kunye namandla okucinezela.

5. Uzinzo lwevolumu elungileyo kubushushu obuphezulu kunye nokumelana nokunxiba okuhle.

6. nokumelana Good.

Ngenxa yokuba iimveliso zezitena eziphikisayo ezine-alumina eziphezulu zine-Al2O3 ephezulu, ukungcola okungaphantsi kunye neglasi engacimiyo, ubushushu obuthambisa umthwalo buphezulu kunobo bezitena zodongwe, kodwa ngenxa yokuba amakristali e-mullite engenzi ubume benethiwekhi, ubushushu bokunciphisa umthwalo abukabi zizitena zesilica phezulu.

Ukunyuka okuphantsi kunye nezitena eziphezulu zealumina ziqulathe i-Al2O3 engaphezulu, esondeleyo kwizinto ezingathathi hlangothi, kwaye inokumelana nokhukuliseko lwe-slag ye-acid kunye ne-alkaline slag. Kuba iqulethe i-SiO2, ukubanakho ukumelana ne-alkaline slag kubuthathaka kunaleyo ye-acid slag.

Ukusetyenziswa kweMveliso:

Izitena ze-alumina eziphantsi kakhulu zenziwe nge-bauxite clinker yodidi olukhethekileyo njengeyona nto iphambili ekrwada, yongezwa zizongezo ezizodwa. Emva koxinzelelo oluphezulu lwenza kunye nokudubula okushisa okuphezulu, banelungelo lokugcina ubushushu obukhulu kunye nenqanaba eliphantsi lokuhamba. Zifanele iifanitshala ezincinci kunye neziphakathi. Isitovu somoya eshushu.

Ukunyuka okuphantsi kunye nezitena eziphezulu zealumum ukuqhuma iifanitshisi kunye nefanitshala eshushu yokuqhushumba isetyenziselwa ukuqhuma iziteshi zompompo. Inkqubo enokuphoswa yamkela uthotho lwe-AI2O3-SiC-C. Inempawu ezibalaseleyo zokumelana nokubola, ukumelana nokhukuliseko lomhlaba kunye nokuzinza okuphezulu kobushushu. Ingasetyenziswa kwijelo eliphambili lomlilo. Umgca oshushu wentsimbi, umgca we-slag, umlomo weswitshi, intsalela yetanki yentsimbi, ngaphezulu kwesembozo somjelo ophambili, omabini amacala esitshixo somjelo omkhulu, umsele wentsimbi, umsele we-slag, njl.

Iimpawu zomzimba kunye neekhemikhali: