Ungakhetha kanjani izinto eziphikisayo steel rolling bafudumale esithandweni

Insimbi yokushisa yokushisa yokushisa ivame ukusetshenziselwa ukushisa amabhilidi noma imishini encane yensimbi yensimbi eshisayo, ikakhulukazi eyakhiwe ngophahla lwesithando somlilo, udonga lwesithando somlilo kanye nephansi lomlilo. Izinga lokushisa lokusebenza isikhathi eside lingaphansi kuka-1400 ℃. Ezithandweni zokushisa eziqhubekayo noma ze-annular, izinga lokushisa lomlilo lengxenye ngayinye lingahlukaniswa ezindaweni ezintathu zokushisa okuphansi, okuphakathi nendawo kanye naphezulu, futhi izinga lokushisa liyi-500-800 ℃ kanye ne-1150-1300 ℃ ngokulandelana. , 1200-1300 ℃.

Isizathu esiyinhloko sokulimala kwendwangu yesithando somlilo kungenxa yokuguquguquka kwezinga lokushisa okubangelwa ukusebenza ngezikhathi ezithile nokuvalwa kwesithando somlilo, okuholela ekuguquguqukeni nasekucwecweni koqweqwe lwesithando somlilo; isizathu esiyinhloko sokulimala phansi kwesithando somlilo kanye nempande yodonga lwesithando somlilo ukusabela kwamakhemikhali phakathi kwensimbi encibilikisiwe ye-oxide slag kanye nezitini. .

Ngokwezimo zokusebenza kwesithando sokushisa, kuyadingeka ukukhetha izinto ezifanele zokuphikisa ngokuvumelana nezimo zezingxenye ezahlukene ukuze kuzuzwe ukucushwa okunengqondo kwezinto, ukuze izinto zokushisa ezishisayo zibe nempilo ende futhi zilondoloze amandla. Khona-ke, ungakhetha kanjani izinto eziphikisayo zesithando sokushisa esishisayo:

Ngemva kweminyaka ecishe ibe ngu-30 yentuthuko, izinto eziphikisayo zokushisisa izithando manje sezihlanganiswa nezinsimbi eziphikisayo + izitini zokunamathisela. Ukwakhiwa kulula, kulula ukusebenza, futhi izindleko zobunjiniyela ziphansi. Kuyinto engcono kakhulu yokwakhiwa kweziko lezimboni.

01 indawo yokushisa ephansi

Indawo yokushisa ephansi ibizwa nangokuthi indawo yokushisa yesithando somlilo sensimbi. Izinga lokushisa layo lokusebenza ngokuvamile lingaphansi kuka-1200 ℃. Ukusetshenziswa kwe-alumina ephezulu ekwazi ukuphonswa ngokuqukethwe kwe-Al2O3 okungaba ngu-50-55% kungahlangabezana ngokugcwele nezidingo zokusetshenziswa, noma ukukhishwa okukhanyayo kungasetshenziswa Izinto ezisetshenziswa njengendwangu yesithando somlilo zinganciphisa izinga lokushisa elingaphezulu kodonga lwesithando somlilo, ukuze ulondoloze. amandla futhi unciphise ukusetshenziswa.

02Indawo yokushisa ephakathi nendawo

Indawo yokushisa ephezulu ibizwa nangokuthi indawo yokushisa nendawo yokucwilisa yesithando somlilo esigoqayo. Izinga lokushisa layo lokusebenza ngokuvamile liba ngu-1200-1350°C. I-castable-simende ephansi enokuqukethwe kwe-Al2O3 engaba ngu-60% ingakhethwa. Impahla eluhlaza ye-castable kufanele ikhethwe ngokuqukethwe okungcolile. Izinto ezingavuthiwe eziphansi zingathuthukisa ukusebenza kwe-castable cishe ku-1350 ℃.

I-castable ye-lining yokusebenza idinga ukukhetha indlela yokudweba ehlanganiswe nezitini ze-anchor. Izitini ze-anchor zingaba izitini eziphezulu ze-aluminium ze-anchor ze-LZ-55 ejwayelekile kazwelonke.