Ngaphansi kwethonya lentengo yamazwe ngamazwe yensimbi, muva nje intengo yensimbi eqoshiwe ikhuphuke kakhulu futhi intengo yensimbi yengulube yaqala ukukhuphuka. Futhi ukuvikelwa kwemvelo kuthinta ukuthi i-ejenti ye-carburizing esezingeni eliphezulu ayisekho esitokweni. Khona-ke intengo yensimbi ekhandwayo ingase ikhuphuke ngenyanga ezayo. Nansi imininingwane elandelayo:
1 Insimbi yengulube ne-coke
EShandong, eShanxi, eJiangsu, eHebei, eHenan nakwezinye izifunda nakuba ukuthunyelwa kwensimbi kuncane, kodwa bambalwa kakhulu abakhiqizi abakhiqizwayo ngakho-ke isitokwe asisiningi kakhulu. Ukunyuka kwemakethe yensimbi, amanani e-coke kanye ne-ore kuthinta ukuthi amanani ensimbi akhuphuke, ngesonto eledlule insimbi yengulube ikhuphuke ngo-1%-3%, i-coke ikhuphuke ngo-2% futhi zombili lezi zitokwe zinciphile. Ukuphakama kwamandla ehlobo kuyafika, isidingo kanye nentengo ye-coke kuzoqhubeka nokukhula. Kodwa ngenxa yokushisa okuphezulu kanye nokuphela kwesizini, isidingo sensimbi kanye nezindawo zokusekela insimbi yengulube asingcono, kulindeleke ukuthi intengo ikhuphuke hhayi kakhulu esikhathini esifushane.
2 I-ejenti yokususa izinto ezingafuneki kanye ne-carburizing
I-cupola ye-foundry yasuswa ngenxa yezindaba zemvelo, izinkampani eziningi zaqala ukushintsha inqubo yokuncibilikisa isithando sikagesi, zisebenzisa insimbi eqoshiwe ebiza kancane futhi ephinde yasetshenziswa kabusha kanye ne-carburizing agent ukukhiqiza insimbi ethambile noma i-grey iron. I-graphite carburizing agent ecolekile iyisihluthulelo, kodwa ukuvikelwa kwemvelo kwengxenye yokuqala yonyaka kwaholela ekuvalweni kwezimboni eziningi kanye ne-carburizing agent ephelelwe yisitokwe. Ngaphezu kwalokho, amanani e-scrap akhuphuka ngakho izindleko zezimboni zanda futhi intengo yamapayipi ensimbi kanye nokufakwa kwayo ingakhuphuka nayo.
Isikhathi sokuthunyelwe: Mashi-07-2017
