Enqubweni yokuncibilikisa, ngenxa ye-dosing engalungile noma ukushaja kanye ne-decarbonization ngokweqile nezinye izizathu, ngezinye izikhathi okuqukethwe kwekhabhoni ensimbi noma yensimbi akuhlangabezani nezidingo ezilindelekile, ngakho-ke kudingekile ukuba i-carburize insimbi noma insimbi ewuketshezi.Izinto eziyinhloko ezivame ukusetshenziselwa i-carburizing yimpushana ye-anthracite, i-iron carburized pig iron, i-electrode powder, i-petroleum coke powder, i-asphalt coke, i-charcoal powder kanye ne-coke powder.Izidingo ze-carburizer ukuthi ukuphakama kwekhabhoni engaguquki, kungcono, futhi kwehlisa okuqukethwe kokungcola okuyingozi okunjengomlotha, izinto eziguqukayo nesibabule, kungcono, ukuze kungangcolisi insimbi.
Ukuncibilikiswa kwezinsimbi kusebenzisa i-recarburizer yekhwalithi ephezulu ngemuva kokuthoswa kwezinga lokushisa eliphezulu kwe-petroleum coke enokungcola okumbalwa, okuyisixhumanisi esibaluleke kakhulu enqubweni yokungcwatshwa kwe-carburizing.Ikhwalithi ye-recarburizer inquma ikhwalithi yensimbi ewuketshezi, futhi inquma ukuthi umphumela we-graphitization ungatholakala yini.Ngamafuphi, ukunciphisa i-iron shrinkage recarburizer kudlala indima ebalulekile.
Lapho zonke izinsimbi ezilahliwe zincibilika esithandweni sikagesi, i-recarburizer efakwe i-graphitized iyathandwa, futhi i-recarburizer efakwe i-graphitized ekushiseni okuphezulu ingashintsha ama-athomu ekhabhoni asuke elungiselelweni lokuqala angahlelekile abe ekuhlelweni kweshidi, futhi i-graphite yeshidi ingaba engcono kakhulu. umnyombo we-graphite nucleation ukukhuthaza i-graphitization.Ngakho-ke, kufanele sikhethe i-recarburizer eye yaphathwa nge-graphitization yokushisa ephezulu.Ngenxa yokwelashwa kwe-graphitization yokushisa okuphezulu, okuqukethwe kwesibabule kukhiqizwa ukuphunyuka kwegesi ye-SO2 nokunciphisa.Ngakho-ke, okuqukethwe kwesibabule se-recarburizer yekhwalithi ephezulu kuphansi kakhulu, ngokuvamile kungaphansi kuka-0.05%, futhi okungcono kungaphansi kuka-0.03%.Ngesikhathi esifanayo, lokhu futhi kuyinkomba engaqondile yokuthi ngabe iphathwe nge-graphitization yokushisa ephezulu nokuthi ngabe i-graphitization ilungile yini.Uma i-recarburizer ekhethiwe ingenziwanga i-graphitized ekushiseni okuphezulu, ikhono le-nucleation le-graphite liyancipha kakhulu, futhi ikhono le-graphitization liyancipha, ngisho noma inani elifanayo lekhabhoni lingafinyelelwa, kodwa imiphumela ihluke ngokuphelele.
Okubizwa ngokuthi i-recarburizer ukukhulisa ngempumelelo okuqukethwe kwekhabhoni ku-iron ewuketshezi ngemuva kokwengeza, ngakho-ke okuqukethwe kwekhabhoni okungaguquki kwe-recarburizer akumele kube phansi kakhulu, ngaphandle kwalokho ukuze uzuze okuqukethwe okuthile kwekhabhoni, udinga ukwengeza imikhiqizo eminingi kunophezulu. -i-carbon recarburizer, ngokungangabazeki eyandisa inani lezinye izakhi ezingathandeki ku-carburizer, ukuze insimbi ye-liquid ingakwazi ukuthola imbuyiselo engcono.
I-sulphur ephansi, izakhi ze-nitrogen ne-hydrogen ziyisihluthulelo sokuvimbela ukukhiqizwa kwezimbotshana ze-nitrogen ekubunjweni, ngakho okuqukethwe kwe-nitrogen ku-recarburizer kuyadingeka ukuthi kube phansi ngangokunokwenzeka.
Ezinye izinkomba ze-recarburizer, njengenani lomswakama, umlotha, ukuguquguquka, ukuncipha kwenani lekhabhoni engaguquki, liphakeme inani lekhabhoni engaguquki, ngakho-ke inani eliphakeme lekhabhoni engaguquki, okuqukethwe kwalezi zingxenye eziyingozi akufanele kube. phezulu.
Ngezindlela ezahlukahlukene zokuncibilika, izinhlobo zesithando somlilo kanye nosayizi wesithando somlilo esincibilikayo, kubalulekile futhi ukukhetha usayizi wezinhlayiyana ezifanele ze-recarburizer, ezingathuthukisa ngempumelelo izinga lokumunca kanye nezinga lokumunca le-recarburizer ensimbi ewuketshezi, futhi ugweme i-oxidation kanye ne-oxidation. ukulahlekelwa okuvuthayo kwe-carburizer okubangelwa usayizi wezinhlayiyana ezincane kakhulu.Usayizi wezinhlayiyana wayo ungcono kakhulu: isithando somlilo esingu-100kg singaphansi kuka-10mm, isithando somlilo esingu-500kg singaphansi kuka-15mm, isithando somlilo sethani elingu-1.5 singaphansi kuka-20mm, isithando somlilo samathani angu-20 singaphansi kuka-30mm.Ekuncibilikiseni isiguquli, lapho kusetshenziswa insimbi enekhabhoni ephezulu, kusetshenziswa i-recarburizer equkethe ukungcola okumbalwa.Izidingo ze-recarburizer esetshenziswa ekwenziweni kwensimbi evuthelwe phezulu yikhabhoni engaguquki ephezulu, okuqukethwe okuphansi komlotha, okuguquguqukayo nesibabule, i-phosphorus, i-nitrogen nokunye ukungcola, nosayizi wezinhlayiyana owomile, ohlanzekile, omaphakathi.Ikhabhoni yayo engaguquki C≥96%, okuqukethwe okuguquguqukayo ≤1.0%, S≤0.5%, umswakama ≤0.5%, usayizi wezinhlayiyana ku-1-5mm.Uma usayizi wezinhlayiyana muhle kakhulu, kulula ukuwushisa, futhi uma umaholoholo, untanta phezu kwensimbi ewuketshezi futhi akulula ukumuncwa insimbi encibilikisiwe.Ukuze uthole usayizi wezinhlayiya zesithando somlilo ku-0.2-6mm, lapho insimbi kanye nezinye izinhlayiya zensimbi ezimnyama ku-1.4-9.5mm, i-carbon steel high idinga i-nitrogen ephansi, usayizi wezinhlayiyana ku-0.5-5mm njalonjalo.Isidingo esithile ngokusho kohlobo oluthile lwesithando somlilo sokuncibilikisa uhlobo lomsebenzi kanye neminye imininingwane ethile yokwahlulela nokukhetha.
Isikhathi sokuthumela: Aug-25-2023