• Junsheng-nadiifinta sare ee magnesium-aluminium spinel waxay leedahay sifooyinka soo socda:
• Iska caabin sare oo diidmo ah;
• Deganaanshaha mugga heerkulka sare ee wanaagsan;
• Iska caabin heer sare ah ee daxalka slag alkaline iyo dhexgalka;
• Degganaanshiyo shoog kulayl oo wanaagsan.
ITEM | CUTUB | SALAAMAHA | ||||
|
| SMA-78 | SMA-66 | SMA-50 | SMA90 | |
Halabuurka kiimikada | Al2O3 | % | 74-82 | 64-69 | 48-53 | 88-93 |
MgO | % | 20-24 | 30-35 | 46-50 | 7-10 | |
CaO | % | 0.45 ugu badnaan | 0.50max | 0.65max | 0.40 max | |
Fe2O3 | % | 0.25max | 0.3max | 0.40 max | 0.20 max | |
SiO2 | % | 0.25max | 0.35 ugu badnaan | 0.45 ugu badnaan | 0.25max | |
NaO2 | % | 0.35 ugu badnaan | 0.20 max | 0.25max | 0.35 ugu badnaan | |
Cufnaanta weyn g/cm3 | 3.3 daq | 3.2 daqiiqo | 3.2 daqiiqo | 3.3 daq | ||
nuugista heerka biyaha% | 1 max | 1 max | 1 max | 1 max | ||
Heerka liidata % | 3 max | 3 max | 3 max | 3 max |
'S' ----isku-duubni;F --ku-daran ;M------magnesia;A----alumina;B----bauxite
Macdanta lafdhabarta ayaa saameyn muhiim ah ku leh sifooyinka heerkulka sare ee walxaha dib-u-celinta.Tusaale ahaan, sababtoo ah isugeynta balaarinta kulaylka yar ee spinel (α = 8.9x10-* / ℃ at 100 ~ 900 ℃), spinel waxaa loo isticmaalaa sida wakiilka xidha (ama loo yaqaan wejiga sibidhka, matrix), leben magnesia-alumina leh periclase sida wajiga ugu weyn ee crystal, marka heerkulku si tartiib ah u beddelo, diiqada gudaha ee soo baxda waa yar tahay, iyo lebenku ma fududa in la jebiyo, sidaas awgeed xasiloonida kuleylka ee lebenka ayaa la wanaajin karaa (lebenka magnesia-alumina Xasiloonida kulaylku waa 50 ~ 150). jeer).
Intaa waxaa dheer, sababtoo ah spinel waxay leedahay sifooyin wanaagsan sida qallafsanaanta sare, guryaha kiimikada deggan, iyo barta dhalaalka sare, oo aad u adkaysa daxalka by dhalaalidda kala duwan ee heerkulka sare, joogitaanka macdanta spinel ee alaabta ayaa hagaajiyay waxqabadka heerkulka sare ee alaabta.
Sababta ugu weyn ee heerkulka jilcin heerkulka sare ee leben magnesia-alumina (bar bilawga aan ka yarayn 1550-1580 ℃) waa ka sarreeyaa lebenka magnesia (bar bilawga ka hooseeya 1550 ℃) waa in halabuurka matrixku uu ka duwan yahay. .
Marka la soo koobo, spinels waa qalab aad u fiican marka loo eego barta dhalaalka, ballaarinta kulaylka, qallafsanaanta, iwm, oo leh hanti kiimiko ah oo deggan, caabbinta xooggan ee nabaadguurka caleenta alkaline, iyo caabbinta nabaadguurka birta dhalaalaysa. .
Junsheng-nadiifinta sare ee magnesium-aluminium spinel system waxay isticmaashaa aluminium saafi ah oo saafi ah iyo magnesium oxide saafi ah oo saafi ah sida alaabta ceeriin, waxaana lagu dhejiyaa heerkul sare.Sida laga soo xigtay halabuurka kiimikada kala duwan, waxa loo qaybiyaa saddex darajo: SMA-66, SMA-78 iyo SMA-90.Taxanaha Alaabta.
Junsheng-nadiifinta sare ee magnesisia-aluminium spinel waxay leedahay wax aan nadiif ahayn oo aad u hooseeya iyo wax qabad heerkul sare oo aad u fiican.Spinel-nadiifinta sare waxay ku habboon tahay qaybaha hore loo sii diyaariyay sida lebenka neefta, lebennada fadhiga, saqafka, daboolka foornada korontada ku jirta, alaabta dib-u-celinta ee foornada wareegta ah, iyo alaabta dib-u-kicinta ee alwaaxyada.badeecooyinka, iyo sidoo kale qaababka qaabaynta laf dhabarta.
Alaabooyinku waxay gacan ka geysan karaan hagaajinta iska caabbinta daxalka ee alaabta refractory, iyo xallinta dhibaatada dildilaaca walxaha ay sababtay ku darista alaabta ceeriin ee magnesium.