Imikhiqizo ye-Graphite isetshenziswa kabanzi
I-Graphite iyinto eguquguqukayo enezindlela eziningi zokusebenzisa nezinzuzo, ikakhulukazi ekukhiqizweni kwezinto ezimelana nokushisa. Izinto ezimelana nokushisa zibalulekile ezimbonini ezifana nokwenza insimbi, lapho zisetshenziselwa ukufaka uthango ezitsheni, ezitsheni ezivuthayo kanye nasezikhunjini, kanye nasekukhiqizweni kwezinto ezimelana nokushisa okuphezulu. Imboni emelana nokushisa ibhekane nezinguquko ezinkulu eminyakeni yamuva nje, okuhlanganisa nokusetshenziswa kabanzi kwezitini ze-magnesia carbon kanye nezitini ze-aluminium carbon, zombili ezihlobene kakhulu nemboni yokwenza insimbi.
Enye yezindlela eziyinhloko zokusebenzisa i-graphite ukukhiqizwa kwezinto ezimelana nokushisa. I-Graphite iyisici esibalulekile ekwenziweni kwezitini ezimelana nokushisa, izinto ezivuthayo, i-continuous casting powder, ama-cores, isikhunta, insipho, izinto ezimelana nokushisa okuphezulu, njll. Lezi zinto zidlala indima ebalulekile ezinqubweni ezahlukene zezimboni, ikakhulukazi embonini yokwenza insimbi. Cishe u-10% wezinto ezimelana nokushisa emhlabeni zisetshenziswa embonini yokwenza insimbi, okugqamisa umthelela omkhulu wezinto ezimelana nokushisa ze-graphite kule mboni.
Ukusetshenziswa kabanzi kwezitini ze-magnesia carbon ezindongeni zesithando sokwenza insimbi kungenye yezinguquko ezibalulekile embonini yokungaguquguquki eminyakeni yamuva nje. Njengoba ziqukethe inhlanganisela ye-magnesium oxide ne-carbon, lezi zitini zinokumelana nokushisa okuhle kakhulu futhi zihlala isikhathi eside, okwenza zibe zilungele izitofu zokwenza insimbi ezindongeni. Ngaphezu kwalokho, ukusetshenziswa kwezitini ze-aluminium carbon ekubunjweni okuqhubekayo nakho kubone intuthuko enkulu. Lezi zitini eziqukethe i-aluminium ne-carbon ziye zabonakala zisebenza kahle enkambisweni yokubunjwa okuqhubekayo, okubonisa ngokwengeziwe ukuguquguquka kanye nokuzivumelanisa nezimo kwezinto eziphikisana ne-graphite.
Izinto ezimelana ne-graphite zihlobene kakhulu nemboni yokwenza insimbi, futhi ukusetshenziswa kwazo kanye nezinzuzo ziyabonakala kuzo zonke izici zokukhiqizwa kwensimbi. Ikhono le-graphite lokubekezelela amazinga okushisa aphezulu kanye nezimo ezinzima lenza libe yinto efanelekile yezitofu zokufaka uthango kanye neminye imishini yokwenza insimbi. Ukuqina kanye nokumelana nokushisa kwezinto ezimelana ne-graphite kusiza ekuthuthukiseni ukusebenza kahle kanye nokuthembeka kwenqubo yokukhiqiza insimbi, ekugcineni kuthinte ikhwalithi kanye nokuvumelana komkhiqizo wokugcina.
Ngaphezu kokusetshenziswa kwayo embonini yokwenza insimbi, i-graphite inezinzuzo eziningana njengezinto ezivimbela ukugqwala. Enye yezinzuzo zayo eziyinhloko ukuhanjiswa kwayo okuphezulu kokushisa, okuvumela ukudluliselwa nokusabalalisa ukushisa okuphumelelayo ezinqubweni zezimboni. Lesi sici siwusizo kakhulu ekusetshenzisweni lapho amazinga okushisa aphezulu ahlala njalo kufanele agcinwe khona, njengasekukhiqizweni kwensimbi nezinye izinto ezishisa kakhulu.
Ngaphezu kwalokho, izinto ezimelana ne-graphite zibonisa ukuzinza okuhle kakhulu kwamakhemikhali, okwenza zimelane nokugqwala kanye nokusabela kwamakhemikhali emazingeni okushisa aphezulu. Ezindaweni ezivame ukuchayeka kumakhemikhali aqinile kanye nezinsimbi ezincibilikisiwe, lesi sici sibalulekile njengoba siqinisekisa ukuhlala isikhathi eside kanye nokuthembeka kwezinto ezimelana ne-graphite.
Enye inzuzo yemikhiqizo ye-graphite yikhono layo lokubekezelela ukushaqeka kokushisa, ushintsho olusheshayo lokushisa olungabangela ukuthi izinto ziqhekeke noma zehluleke. Ikhono le-Graphite lokubekezelela ukushaqeka kokushisa lenza kube ukukhetha okuthembekile kokusetshenziswa lapho amazinga okushisa eshintshashintsha ngokushesha, njengasezimbonini zokwenza insimbi kanye nokukhipha insimbi.
Ngaphezu kwalokho, ama-graphite refractories aziwa ngokuba nama-porosity aphansi, okusiza ukwandisa amandla awo kanye nekhono lokumelana nokungena kwensimbi encibilikisiwe nezinye izinto. Lesi sici sibaluleke kakhulu ekusetshenzisweni lapho ukuvala nokuvikela ukushisa kubaluleke kakhulu, njengoba kuqinisekisa ubuqotho bezinto eziphikisayo ngaphansi kwezimo ezimbi kakhulu.
Ukuguquguquka kwemikhiqizo ye-graphite kudlulela ngale kokusetshenziswa kwayo embonini yokwenza insimbi. Ama-refractories e-graphite asetshenziswa nakwezinye izinhlelo zokusebenza ezishisa kakhulu, okuhlanganisa ukukhiqizwa kwezinto zobumba, ingilazi nezinye izinto ezidinga ukuzinza kokushisa kanye nokumelana nezimo ezinzima.
Ukusetshenziswa kanye nezinzuzo zemikhiqizo ye-graphite ekukhiqizweni kwezinto eziphikisayo kubaluleke kakhulu futhi kufinyelela kude. Ukusetshenziswa kabanzi kwe-graphite ekwakhiweni kwezitini eziphikisayo, izinto ezivuthayo, i-constant casting powder, ama-cores kanye nezinto ezimelana nokushisa okuphezulu kugcizelela ukubaluleka kwayo ezinqubweni ezahlukahlukene zezimboni, ikakhulukazi embonini yokwenza insimbi. Intuthuko yakamuva embonini ephikisayo, njengokwamukelwa kwezitini ze-magnesia carbon kanye nezitini ze-aluminium carbon, igcizelela kakhulu ukuzivumelanisa nezimo kanye nokusebenza kahle kwezinto eziphikisayo ze-graphite. Ngokuguquguquka kwayo okuphezulu kokushisa, ukuzinza kwamakhemikhali, ukumelana nokushaqeka kokushisa kanye nokuma okuphansi, i-graphite isalokhu iyisinqumo sokuqala sezinhlelo zokusebenza ezidinga izinto eziphikisayo ezinokwethenjelwa nezihlala isikhathi eside. Njengoba imboni iqhubeka nokuthuthuka futhi idinga izinto zokusebenza eziphezulu, imikhiqizo ye-graphite izodlala indima ebalulekile ekuhlangabezaneni nalezi zidingo kanye nokushayela ukusungula izinto ezintsha kubuchwepheshe bezinto eziphikisayo.
