Umahluko phakathi kwesithando sokufakelwa kunye ne-cupola:

1. I-cupola sisixhobo esibalulekileyo sokunyibilikisa isinyithi esityhidiweyo kwimveliso yokuphosa. Ibloko yentsimbi etyhidiweyo iyanyibilika ibe yintsimbi enyibilikisiweyo kwaye igalelwe kwisingundo sesanti ukuze ipholiswe ize icolwe ukuze kufunyanwe iicastings. I-cupola yi-cylindrical smelting furnace ethe nkqo, eyahlulahlulwe kwiziko elingaphambili kunye nesithando somlilo esingasemva. I-forehearth yahlulwe ngakumbi ibe ngumngxuma wempompo, umngxuma wempompo ye-slag, i-hearth yangaphambili yesivalo somlilo kunye nebhulorho. I-furnace yangasemva yahlulwe yangamacandelo amathathu, isithando somlilo esiphezulu, isithando somlilo esinqeni kunye neziko. Isithando somlilo esinqeni sihlukaniswe ityhubhu eshushu, ivalwe emva kokulungisa isithando somlilo, kwaye ivalwe ngodaka. Kwisithando somlilo esiphezulu kukho umtshintshi wobushushu. Isetyenziselwa ikakhulu ukuveliswa kweentsimbi zentsimbi kwaye isetyenziselwa ukwenza intsimbi kunye nabaguquli. Ngenxa yokuba umphezulu wesithando somlilo uvula phezulu, ubizwa ngokuba yi-cupola.

2. I-furnace yokungeniswa sisixhobo sombane esiguqula i-50HZ i-frequency frequency alternating current ibe yi-intermediate frequency (ngaphezulu kwe-300HZ ukuya kwi-20K HZ). Iguqula inqanaba lesithathu lamandla atshintshayo akhoyo abe ngumbane othe ngqo emva kokulungiswa, kwaye emva koko ujike umsinga othe ngqo ube yi-adjustable intermediate current frequency. I-medium frequency alternating current ejikelezayo kwi-capacitor kunye ne-coil induction inikezelwa ukuvelisa imigca yemagnethi ephezulu yoxinaniso kwi-coil induction, kunye nezinto zetsimbi eziqulethwe kwikhoyili ye-induction ziyasikwa, kwaye i-eddy yangoku enkulu yenziwa kwi-coil. izinto zentsimbi.