Ibicuruzwa bya Chromium Corundum
ibisobanuro ku bicuruzwa
Ibikoresho fatizo bikoreshwa mubicuruzwa bya chromium corundum nigisubizo gikomeye gihujwe nubushyuhe bwo hejuru bwo gushonga kwa alumina na oxyde ya chromium muburyo runaka.Ibikoresho nyamukuru ni bauxite (cyangwa alumina yinganda) wongeyeho chromite ikwiye kandi ukayigabanya.Umukozi ushonga ku bushyuhe bwinshi mu itanura ry’amashanyarazi, hanyuma chromium yashongeshejwe isukwa mu ifu kugirango ikonje buhoro, hanyuma ikorwe nyuma yo gufatana..
Chromium corundum yamashanyarazi ibicuruzwa byahujwe na chrnmecorundum refrac-tory nayo yitwa fuse cast chrnmecorundum refrac-tory.Ibicuruzwa bivanze bivanze bigizwe numuti ukomeye wa alumina na chromium oxyde hamwe na spinel nkeya, irimo 60% kugeza 87% bya alumina na 30% ya chromium oxyde.Ubwinshi bwinshi ni 3.2-3.9g / cm3;, imbaraga zubushyuhe bwo hejuru ziri hejuru, ugereranije nubundi bwoko bwinganda za corundum, kurwanya ruswa kwangirika kwikirahure nicyo gikomeye.Irashobora gukoreshwa nkumurongo witanura rihuza neza nikirahure cyashongeshejwe.
Uruganda rwa Chromium corundum rukoreshwa cyane mugutondekanya gaze ya gazi-yamazi yotsa igitutu, itanura ritunganya ladle hamwe na karuboni yumukara wa reaction, uruganda rukora peteroli slag gazification itanura hamwe nibirahure bishongesha itanura, nibindi, kandi birashobora no gukoreshwa mubushuhe Chrome amatafari ya corundum yamatanura ni itanura ninganda zinganda zubushyuhe bwo hejuru.
AL203 na Cr2O3 ni imiterere ya corundum, radiyo ya Cr3 + ni 0,620, naho radiyo ya AL3 + ni 0.535.Ukurikije formulaire ifatika:
Kubera ko itandukaniro riri hagati ya Cr3 + na AL3 + ion radii iri munsi ya 15%, Cr ion irashobora guhora kandi igasimbuza AL muri latike ya AL203, igakora igisubizo kitagira ingano gikomeza gusimburwa gikomeye.
Imiterere ya kristu ya Cr203 na AL203 ni imwe, kandi radiyo ionic itandukanye na 13.7%.Kubwibyo, Cr203 na AL203 birashobora gukora igisubizo kitagira umupaka mubushyuhe bwinshi.Urebye kumurongo wamazi-ukomeye, hamwe no kwiyongera kwa Cr203, ubushyuhe icyiciro cyamazi gitangira kugaragara nabwo burazamuka.Kubwibyo, kongeramo umubare ukwiye wa Cr203 kuri AL203 birashobora kunoza cyane imiterere yubukanishi hamwe nubushyuhe bwo hejuru bwa serivise yubushyuhe bwa corundum
Cr203 irashobora gukora urwego rwo hejuru rwo gushonga cyangwa eutectic hamwe nubushyuhe bwo hejuru bwo gushonga hamwe na okiside nyinshi zisanzwe.Kurugero, FeO · Cr203 spinel yakozwe na Cr203 na Feo ifite aho ishonga igera kuri 2100 ℃;Cr203 na AL203 birashobora gukora igisubizo gihoraho.Byongeye kandi, Cr203 irashobora kandi kongera cyane ubwiza bwikibabi no kugabanya ubworoherane bwigitereko, bityo bikagabanya kwangirika kwicyuma kugeza kungufu.Kubwibyo, kongeramo umubare ukwiye wa Cr203 mubikoresho byangiritse birashobora kugabanya cyane imiterere yimiterere yibikoresho by itanura biterwa nisuri.Nta buryo bugaragara buri hagati yubushobozi bwo kwangirika kwa slag to chromium corundum inganda nuburinganire bwa slag.
Amatafari ya chromium corundum akozwe muri chromium corundum ibikoresho bivunika biri mu itanura.Iyo shitingi yibanze ari 2, amatafari ya chromium corundum afite uburyo bwiza bwo kurwanya ruswa;iyo shitingi yibanze ni 0.2, ubujyakuzimu bwumuringa wumuringa kugeza kuri chromium corundum amatafari Ntoya;iyo shitingi yibanze ni 0.35, ubujyakuzimu bwa tin slag kugeza kumatafari ya chrome corundum niyo ntoya;iyo isasu rya slag shingiro ari 0.3, ubunini bwibisigisigi nubunini nuburebure bwurwego rwibisubizo, igisuri hamwe nigice cyinjira ni gito.Iyo alkaline ya slag ari 0.37, kurwanya ruswa yamatafari ya chrome corundum nibyiza.
