Phantsi kwempembelelo yexabiso le-iron ore yamazwe ngamazwe, kutshanje ixabiso lentsimbi elahliweyo liye lanyuka kwaye ixabiso lentsimbi yehagu laqala ukunyuka. Kwakhona ukhuseleko lokusingqongileyo luchaphazela ukuba i-carburizing agent esemgangathweni ophezulu ayisekho. Emva koko ixabiso lentsimbi ephoswayo linokunyuka kwinyanga ezayo. Nazi iinkcukacha ezilandelayo:
1 Intsimbi yehagu kunye ne-coke
EShandong, eShanxi, eJiangsu, eHebei, eHenan nakwezinye iindawo nangona ukuthunyelwa kwesinyithi kuncinci, kodwa bambalwa kakhulu abavelisi abavelisayo ngoko ke uluhlu lwezinto ezikhoyo alukho kangako. Ukunyuka kwemarike yentsimbi, amaxabiso e-coke kunye ne-ore kuchaphazela ukuba amaxabiso esinyithi anyuke, kwiveki ephelileyo intsimbi yehagu inyuke nge-1%-3%, i-coke inyuke nge-2% kwaye zombini ezi zinto ziphantsi. Incopho yamandla ehlobo ifika, imfuno kunye nexabiso le-coke ziya kuqhubeka zikhula. Kodwa ngenxa yobushushu obuphezulu kunye nexesha elingekhoyo, imfuno yentsimbi kunye nee-foundries yentsimbi yehagu ayingcono, kulindeleke ukuba ixabiso linyuke kungekuninzi kakhulu kwixesha elifutshane.
2 Isixhobo sokulahlwa kwenkunkuma kunye ne-carburizing
I-cupola ye-foundry yasuswa ngenxa yemicimbi yokusingqongileyo, iinkampani ezininzi zaqala ukutshintsha inkqubo yokunyibilika kwesithando sombane rhoqo, zisebenzisa intsimbi ekrazukileyo ebiza kancinci kunye ne-arhente ye-carburizing ephinda isetyenziswe ukuvelisa i-ductile iron okanye i-grey iron. I-arhente ye-carburizing ye-graphite entle yeyona nto ibalulekileyo, kodwa ukhuseleko lokusingqongileyo lwesiqingatha sokuqala sonyaka lukhokelele ekubeni iifektri ezininzi zivalwe kwaye i-arhente ye-carburizing iphelelwe yimpahla. Ngaphezu koko, amaxabiso e-crap anyukile kangangokuba iindleko zeefektri zanda kwaye ixabiso leepayipi zentsimbi kunye nokufakwa kwazo linokunyuka.
Ixesha leposi: Matshi-07-2017
