Isakhiwo semishini yesithando somlilo sokucwenga i-VOD ngokuyisisekelo siyefana naleso se-VD vacuum yokucwenga isithando somlilo. Umehluko omkhulu ukuthi i-VOD yokucwenga isithando somlilo engxenyeni engenhla yesembozo sokuvala i-vacuum yandisa isibhamu somoya-mpilo kanye nesistimu yayo yokuphakamisa kanye nesistimu yokuhlinzeka komoya-mpilo, ukuphefumula umoya-mpilo ngaphansi kwezimo ze-vacuum ukwenza i-ladle steel decarburization. Indlela inomsebenzi we-decarburization, deoxidation, degassing, desulfurization kanye ne-alloying.
I-VD/VOD ladle yokucwenga isithando somlilo sihlanganisa ithangi levacuum noma uhlobo lwethangi elithwala imoto, ikhava yethangi levacuum, idivayisi yokulayisha i-vacuum, idivayisi efutha umoya-mpilo (okubizwa ngokuthi i-VOD), isistimu kagesi ezishintshayo, ipayipi levacuum, idivayisi yokususa uthuli kanye nephampu yevacuum. . I-tonnage yesithando somlilo isukela ku-5t kuya ku-300t. Ngokuyinhloko zisetshenziselwa ukukhiqiza insimbi engagqwali, insimbi ye-manganese, insimbi ye-ultra-low carbon alloy kanye nama-alloys.
Ithangi le-vacuum livalwa ngendandatho eyodwa yokuvala engenalutho futhi ivikelwe ukupholisa kwamanzi;
Isivalo sethangi samukela isakhiwo sekhanda uvemvane ngamandla aphezulu namandla afanayo;
I-vacuum tanker isebenzisa ukulawulwa kwesivinini sokuguqulwa kwemvamisa, ihamba kahle.
Ipayipi le-vacuum lithatha amapayipi apholile amanzi, anganciphisa izinga lokushisa legesi yokukhipha kanye nokugeleza komoya;
Iwindi lokubuka ngesandla elinomsebenzi wekhamera ye-TV;
Ukulinganisa izinga lokushisa okwenziwa ngesandla kanye nesampula kanye nokudosa okuzenzakalelayo kwenziwa ngaphansi kwezimo ze-vacuum;
Idivayisi yokuphefumula i-oksijeni ifakwe idivayisi ekhethekile yokuvala, engacindezeli kancane, ivuza futhi kulula ukulungisa isibhamu se-oxygen;
I-Argon ivuthela futhi inyakazisa;
Uhlelo oluphambili kakhulu lokulawula okuzenzakalelayo;
Umsebenzi we-VD / VOD
Njengemishini yokucwenga i-vacuum esetshenziswa kabanzi ekukhiqizeni insimbi ephezulu, inemiphumela emihle kakhulu yokukhipha umoya kanye ne-deoxidizing. Ifinyelela ukukhishwa okuphumelelayo kwe-hydrogen ne-nitrogen ensimbi ngokudala indawo ehlanzekile kakhulu, enciphisa kakhulu inani lamagesi ayingozi ensimbi eqediwe, okubalulekile ekuthuthukiseni ukuqina kanye ne-ductility yensimbi. Le nqubo ayithuthukisi kakhulu kuphela ikhwalithi yangaphakathi yensimbi, kodwa futhi yandisa impilo yayo yesevisi, ebaluleke kakhulu ekwenzeni imikhiqizo yensimbi ekhethekile edinga ukuhlanzeka okwedlulele nokusebenza okuphezulu.
Isithando somlilo se-VD sinciphisa ngempumelelo okuqukethwe kwe-hydrogen ne-nitrogen ensimbi, sikhipha umoya-mpilo ensimbi ngokusebenzisa i-carbon nomoya-mpilo, futhi sikhiphe insimbi ngokusabela okugcwele kwe-alkaline top slag ngensimbi encibilikisiwe, ngaphezu kokwenza i-homogenizing ukwakheka kanye izinga lokushisa. Ngokusebenza kwayo okuhle kakhulu ku-degassing, i-deoxygenation, i-desulfurization, ukwakheka kanye nokushisa kwe-homogenization, isithando somlilo se-VD sesiphenduke umshini obalulekile wezobuchwepheshe embonini yesimanje yensimbi ukuthuthukisa ikhwalithi yomkhiqizo, ukwandisa inqubo yokukhiqiza, futhi uhlangabezane nesidingo sokuphela okuphezulu. imakethe yezinto ezibonakalayo.
Ukukhiqizwa kwensimbi ye-alloy yekhwalithi ephezulu, insimbi ephansi ye-carbon steel, i-bearing steel, i-alloy steel structure, insimbi engagqwali, insimbi yokubumba, insimbi yamathuluzi, insimbi ye-ultra-low carbon steel, njll., amamaki ensimbi anezidingo eziqinile zegesi, izinto ezifakiwe, nokwakheka kwamakhemikhali emanzini ensimbi;
Ukushaja i-vacuum, ukulungiswa kahle kwe-alloy;
Vacuum degassing
Ukuvunguza komoya-mpilo we-vacuum kanye ne-decarburization;
Ukunyakazisa i-argon eshaya phansi.