Ifuru ya VAD Refractory

VAD ni impfunyapfunyo ya vacuum arc degassing, uburyo bwa VAD bwateguwe na Finkl company na Mohr company, bityo bwitwa Finkl-Mohr method cyangwa Finkl-VAD method. VAD furnace ikoreshwa cyane cyane mu gutunganya ibyuma bya karuboni, ibyuma by'ibikoresho, ibyuma bitanga amashanyarazi, ibyuma bifite ubushobozi bwo gukora cyane n'ibindi.

Ibikoresho byo gutunganya VAD bigizwe ahanini n'ikiyiko cy'icyuma, sisitemu yo gusukura, ibikoresho bishyushya amashanyarazi n'ibikoresho byo kongeramo ferroalloy.

Ibiranga uburyo bwa VAD

1. Ingaruka nziza zo gukuraho imyuka mu gihe cyo gushyushya, kuko gushyushya amashanyarazi bikorwa mu gihe cy'umwuka ushyushye.
2. Ishobora guhindura neza ubushyuhe bw'icyuma gicanwa, imbere mu gikombe cy'icyuma hashobora kongera ubushyuhe, kandi ubushyuhe buragabanuka mu gihe cyo gucanwa.
3. Amazi y'icyuma ashobora gukangwa neza mu gihe cyo kuyatunganya, imiterere y'amazi y'icyuma irahamye.
4. Ingano nini y'icyuma ishobora kongerwamo amazi y'icyuma, ubwoko bw'ibishongeshwa ni bwinshi.
5. Ibintu bikoreshwa mu gushonga no gukuraho karubone bishobora kongerwamo ibikoresho bikoreshwa mu gushonga no gukuraho karubone. Iyo imbunda ya ogisijeni ifite agapfundikizo k’umwuka, uburyo bwo gukuraho karubone bushobora gukoreshwa mu gushonga icyuma kidashonga cyane.

Imikorere y'icyuma cya VAD ingana n'itanura rishongesha arc y'amashanyarazi. Ifuru ya VAD ikora neza iyo ikoze mu buryo bw'umwuka, icyuma gikoreramo icupa kigira ingaruka ku mazi y'icyuma n'ibinyabutabire bya slag bishongeshejwe ndetse no koza hakoreshejwe imashini, hagati aho, imirasire y'ubushyuhe ya arc y'amashanyarazi iba ikomeye, ubushyuhe buri hejuru, ahantu hashyushye hagira ingaruka mbi cyane. Iyo hongewemo slagging agent, slag corruption iba ikomeye cyane, cyane cyane slag line zone n'igice cyo hejuru, umuvuduko wa corruption uba wihuta kurushaho.

Guhitamo ibikoresho birwanya icyuho bya VAD bigomba gukoresha ubwoko butandukanye bw'amatafari arwanya icyuho bitewe n'imiterere y'ubukorikori, bityo igihe cyo gukora kikaba kirekire kandi ikoreshwa ry'ibikoresho birwanya icyuho rikagabanuka.

Ibikoresho bikoreshwa mu buryo bwa VAD birimo cyane cyane: amatafari ya magnesia chrome, amatafari ya magnesia carbon, amatafari ya dolomite n'ibindi.

Imitako ikora ahanini ikoresha amatafari ya magnesia chrome afatanye mu buryo butaziguye, amatafari ya magnesite chrome asubiwemo n'amatafari ya magnesia chromite asubiwemo kabiri, amatafari ya magnesite carbon, amatafari ya alumina ashyushye cyangwa adashyushye cyane hamwe n'amatafari ya dolomite yavuwe mu bushyuhe buke, n'ibindi. Imitako ihoraho ikoresha amatafari ya magnesia chrome, amatafari y'ibumba ritwitse n'amatafari yoroheje ya alumina.

Mu matanura amwe na amwe ya VAD, igitambaro cyo hasi gikoreshwa mu gukata amatafari ya zircon n'amatafari ya zircon ahinduka ibyuma bivanze. Igice cyo munsi y'umurongo wa slag gishyirwamo amatafari maremare ya alumina. Igice cy'umurongo wa slag kiba cyubatswe n'amatafari ya magnesia chrome afatanye mu buryo butaziguye. Hejuru y'umurongo wa slag ahantu hashyushye hubakwa n'amatafari ya magnesia carbon afatanye mu buryo butaziguye, mu gihe igice gisigaye ari amatafari akozwe n'amatafari ya magnesite chromite afatanye mu buryo butaziguye.

Igice cya VAD ladles slag line kinakoresha amatafari ya magnesia chrome afatanye neza n'amatafari ya magnesia chrome avanze. Umwanya wo hasi w'urukiramende upfundikiwe n'amatafari ya zircon. Imashini ifite imyenge ifite alumina mullite nyinshi, kandi ibice bisigaye byose byubatswe n'amatafari ya alumina menshi adashyushye.