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Itekhnoloji yeCarbon Ferrochrome ephezulu

Ikhabhoni ephezului-ferrochromeyenye yeeferroalloys eziqhelekileyo eziveliswayo kwaye ziphantse zisetyenziswe kuphela kwimveliso yensimbi engenasici kunye nentsimbi ephezulu yechromium.Imveliso yenzeka ikakhulu kumazwe anobonelelo oluninzi lwechromite ore.Umbane onexabiso eliphantsi kunye nezinto ezinciphisayo nazo zinegalelo ekusebenzeni kwekhabhoni yeferrochrome ephezulu.Obona buchwepheshe buxhaphakileyo bemveliso busetyenziswayo kukunyibilikisa kwe-arc emanzini, nangona ukunyibilikiswa kwe-arc evulekileyo kwiziko le-DC kuya kuxhaphaka.Indlela yetekhnoloji ephucuke ngakumbi equka inyathelo lokunciphisa kwangaphambili isetyenziswa kuphela kwisikali esibalulekileyo ngumvelisi omnye.Iinkqubo zokuvelisa ziye zaba namandla ngakumbi kunye ne-metallurgically esebenzayo ngokusebenzisa iinkqubo eziphucukileyo ezifana nokunciphisa kwangaphambili, ukushisa kwangaphambili, ukuxutywa kwe-ore, kunye nokusetyenziswa kwegesi ye-CO.Izityalo ezisandula ukufakwa zibonisa imingcipheko elawulekayo ngokongcoliseko lwendalo esingqongileyo kunye nempilo yasemsebenzini.

Ngaphezulu kwe-80% yemveliso ye-ferrochrome yehlabathi isetyenziselwa ukuveliswa kwentsimbi engatyiwa.Insimbi engenasici ixhomekeke kwichromium ngokubonakala kwayo kunye nokuchasa ukubola.Umyinge womxholo wechromium kwintsimbi engenasici yi-18%.I-FeCr iphinda isetyenziswe xa ifunwa ukongeza i-chromium kwintsimbi ye-carbon.I-FeCr evela eMzantsi Afrika eyaziwa ngokuba yi-"charge chrome" kwaye iveliswe kwi-ore ye-chrome yomgangatho ophantsi isetyenziswa kakhulu kwimveliso yentsimbi engenasici.I-High-carbon FeCr eveliswe kwi-ore ye-high-grade ore efunyenwe e-Kazakhstan (phakathi kwezinye iindawo) isetyenziswa ngokuqhelekileyo kwizicelo zeengcali ezifana neentsimbi zobunjineli apho umlinganiselo ophezulu we-Cr ukuya kwi-Fe ubalulekile.

Ukuveliswa kwe-Ferrochrome ngokuyimfuneko ngumsebenzi wokunciphisa ubushushu obuphezulu be-carbothermic.I-Chrome ore (i-oksidi yechromium kunye nentsimbi) incitshiswa yicoke (kunye namalahle) ukuze yenze ingxubevange ye-iron-chromium-carbon.Ubushushu benkqubo bubonelelwa ngokwesiqhelo ukusuka kwi-arc yombane eyenziwe phakathi kweengcebiso zee-electrode ezisezantsi kwiziko kunye neziko lomlilo kwiziko elikhulu kakhulu lecylindrical elaziwa ngokuba "zii-arc eziphantsi kwamanzi."Njengoko igama lithetha ukuba ii-electrodes ezintathu zekhabhoni eziko zintywiliselwa kumandlalo oqinileyo ngakumbi kunye nomxube wolwelo owenziwe yikhabhoni eqinileyo (icoke kunye/okanye amalahle), izinto ezikrwada eziqinileyo (ore kunye nefluxes) kunye ulwelo FeCr ingxubevange kunye namathontsi slag atyhidiweyo ukuba kwenziwa.Kwinkqubo yokunyibilikisa, izixa ezikhulu zombane ziyasetyenziswa.Ukubethelwa kwezinto ezivela kwisithando somlilo kwenzeka ngokukhawuleza.Xa i-ferrochrome eyaneleyo enyibilikisiweyo iqokelele eziko, umngxuma wempompo uyagrunjwa kwaye umjelo wesinyithi esinyibilikisiweyo kunye ne-slag iphuma phantsi emkhombeni ukuya kwindawo ebandayo okanye i-ladle.I-ferrochrome iqina kwii-castings ezinkulu, ezityunyuziweyo ukuze zithengiswe okanye ziqhubekele phambili.


Ixesha lokuposa: Jun-17-2021