I-VAD Furnace Refractory

I-VAD iyisifinyezo se-vacuum arc degassing, indlela ye-VAD ithuthukiswe inkampani yakwaFinkl kanye nenkampani ye-Mohr, ngakho-ke ibizwa nangokuthi indlela ye-Finkl-Mohr noma indlela ye-Finkl-VAD. Isithando somlilo se-VAD sisetshenziselwa ikakhulukazi ukucubungula insimbi ye-carbon, insimbi yamathuluzi, insimbi enensimbi, insimbi ephezulu ye-ductility nokunye.

Imishini yokucwenga ye-VAD ikakhulukazi yakhiwe ngensimbi yensimbi, isistimu ye-vacuum, imishini yokushisisa i-arc kagesi kanye nemishini yokwengeza i-ferroalloy.

Izici zendlela ye-VAD

1. Umphumela omuhle we-degassing ngesikhathi sokushisa, ngoba ukushisa kwe-arc kagesi kwenziwa esimweni se-vacuum.
2. Ingakwazi ukulungisa kahle izinga lokushisa lokukhipha uketshezi lwensimbi, ulayini lwangaphakathi lwe-steel ladle lungavuselela ngokwanele ukushisa, ukwehla kwezinga lokushisa kuzinzile ngesikhathi sokusakaza.
3. Uketshezi lwensimbi lungashukunyiswa ngokugcwele ngesikhathi sokucwengwa, ukwakheka koketshezi lwensimbi kuzinzile.
4. Inani elikhulu lengxubevange lingangezwa oketshezini lwensimbi, uhla lwezinhlobo ezincibilikayo lubanzi.
5. Ama-slagging agents kanye nezinye izinto ze-slagging zingangezwa ukuze kukhishwe i-desulfurization, i-decarburization. Uma isibhamu somoya-mpilo sifakwe kwikhava yevacuum, indlela yokukhipha umoya-mpilo wevacuum ingasetshenziselwa ukuncibilikisa insimbi engagqwali ye-ultra low carbon.

Umsebenzi we-VAD furnace steel ladle ulingana nesithando somlilo esincibilikisa i-arc kagesi. Isithando somlilo se-VAD sisebenza esimweni se-vacuum, i-steel ladle esebenzayo ihlushwa uketshezi lwensimbi kanye nokugqwala kwamakhemikhali e-slag okuncibilikisiwe kanye nokugeza ngomshini, okwamanje, imisebe eshisayo ye-arc kagesi inamandla, izinga lokushisa liphezulu, indawo yendawo eshisayo izoba nomonakalo omkhulu. Ngokungezwa kwe-ejenti ye-slagging, ukugqwala kwe-slag kubi, ikakhulukazi indawo yomugqa we-slag kanye nengxenye engaphezulu, izinga lokugqwala lishesha kakhulu.

Ukukhethwa kwezinto eziphikisayo ze-VAD ladle refractory kufanele kuthathe izinhlobo ezahlukene zezitini eziphikisayo ngokuya ngesimo sangempela sobuciko, ngakho-ke impilo yesevisi iyandiswa futhi ukusetshenziswa kwezinto eziphikisayo kuyancipha.

Izinto eziphikisayo ezisetshenziswa ngendlela ye-VAD ikakhulukazi zifaka: izitini ze-magnesia chrome, izitini ze-carbon magnesia, izitini ze-dolomite nokunye.

Ulayini osebenzayo ikakhulukazi usebenzisa izitini ze-chrome eziboshelwe ngokuqondile ze-magnesite, izitini ze-chrome eziboshwe kabusha kanye nezitini ze-magnesia chromite eziphindwe kabili, izitini ze-carbon magnesite, izitini eziphezulu ze-alumina ezishisiwe noma ezingashi kanye nezitini ze-dolomite ezinezinga lokushisa eliphansi, njll. izitini ze-fireclay nezitini eziphakeme ze-alumina ezingasindi.

Kwamanye amaziko e-VAD, ulayini osebenzayo ophansi we-ladle ngokuvamile wamukela izitini ze-zircon nezingxube ze-zircon refractory ramming. Ngezansi ingxenye yomugqa we-slag ifakwe izitini eziphakeme ze-alumina. Ingxenye yomugqa we-slag yakhiwe ngezitini ze-chrome eziboshwe ngokuqondile ze-magnesia. Ngaphezulu komugqa we-slag indawo eshisayo yakhiwe ngezitini zekhabhoni ze-magnesia eziboshwe ngokuqondile, kanti ingxenye esele iyisitena esisetshenzwe ngezitini ze-chromite ze-magnesite eziboshwe ngokuqondile.

Ingxenye yomugqa we-slag yama-ladles we-VAD iphinde yamukele izitini ze-chrome eziboshwe ngokuqondile ze-magnesia nezitini ze-chrome ze-magnesia ezihlanganisiwe. I-Ladle floor yokusebenza intambo ifakwe izitini ze-zircon. Ipulaki enezimbotshana isekelwe ku-alumina mullite ephezulu, kanti ezinye izingxenye zonke zakhiwe ngezitini eziphakeme ze-alumina ezingashisiwe.