Umucanga wa Mullite
Umucanga mwinshini ubwoko bw'ibikoresho birwanya aluminiyumu kandi bikoreshwa cyane mu nganda zikora ubwubatsi.
Ibikubiye mu binyabutabire by'ingenzi:
Ibice by'ingenzi bya shimi bigize umucanga wa mullite ni Aluminium Oxide (Al₂O₃) na Silicon Dioxide (SiO₂). Ingano zisanzwe z'imiti ni: 42% ≤ Al₂O₃ ≤ 47% na 51% ≤ SiO₂ ≤ 53%. Irimo kandi ingano nto ya feri Oxide (Fe₂O₃), Alkali Metal Oxides (Na₂O+K₂O), n'ibindi bintu bifatika.
Uburyo bwo gukora:
Umusenyi wa Mullite ubusanzwe ukorwa hakoreshejwe imyunyu ngugu ikungahaye kuri aluminosilicate, nka kaolin, ibumba rikomeye, cyangwa muscovite. Iyi nzira ikubiyemo gusya ibikoresho fatizo, kubivanga n'inyongera, no kubikanda kugira ngo bibe imiterere. Ibi bishushanyo mbonera bishyirwa mu itanura rishyushye cyane ku bushyuhe buri hagati ya 1300°C na 1550°C. Nyuma yo gusya, umusaruro urasyungururwa, ugasuzumwa, ugatandukanywa na magnetike kugira ngo ukureho icyuma, n'izindi nzira kugira ngo haboneke umusaruro wa mullite w'umusenyi w'ingano zitandukanye z'uduce.
Ibisobanuro by'ingano y'uduce:
Umusenyi wa Mullite uboneka mu bwoko butandukanye bw'uduce duto. Ibikoresho byacu by'ingenzi birimo: mesh 8-16, mesh 16-30, mesh 30-60, mesh 60-80, na mesh 80-120. Byongeye kandi, dutanga ubwoko bwiza bw'ibice bizwi nka mullite powder, nka mesh 200 na mesh 300.
Ibiranga Imikorere:
Ubushobozi bwo kugarura umwuka mu kirere cyane:Kubera ko ifite ubushyuhe bugera kuri 1750°C, yihanganira ubushyuhe bwinshi bw'icyuma gishongeshejwe mu gihe cyo gucukura, ikarinda igishishwa cy'ibumba kwangirika.
Ubushyuhe buhamye cyane:Umucanga wa Mullite ukomeza kutagira ingaruka iyo ubushyuhe buhindutse. Urwanya ubushyuhe bwagutse cyangwa bugabanuka, bigatuma ibyuma bicukurwa neza.
Imiterere yoroshye yo gusimbuza:Nyuma yo gucukura, umucanga wa mullite ushobora gukurwa mu buryo bworoshye (gutembagara) mu gucukura. Ibi bigabanya gukenera akazi ko kurangiza nyuma kandi bikanoza imikorere myiza.
Ubwiza bwo Gutera Imbunda:Gukoresha umucanga wa mullite nk'igikoresho cy'igikonoshwa bituma habaho gucukura ahantu hameze neza. Bigabanya inenge zo gucukura nk'imyobo y'umucanga n'imyobo ipfuka amazi, bityo bikongera ubwiza bw'imyobo muri rusange.
| Ibisobanuro | Icyiciro cy'ifunguro rya nimugoroba | Icyiciro cya 1 | Icyiciro cya 2 |
| Al2O3 | 44%-45% | 43%-45% | 43%-50% |
| SiO2 | 50%-53% | 50%-54% | 47%-53% |
| Fe2O3 | ≤1.0% | ≤1.5% | ≤2.1% |
| K2O+Na2O | ≤0.5% | ≤0.6% | ≤0.8% |
| CaO | ≤0.4% | ≤0.5% | ≤0.5% |
| TiO2 | ≤0.3% | ≤0.7% | ≤0.3% |
| Soda ya Xaustike | ≤0.5% | ≤0.5% | ≤0.7% |
| Ubucucike bw'umubyimba | ≥2.5g/cm3 | ≥2.5g/cm3 | ≥2.45g/cm3 |
Ishingiro ry'ibumba rikozwe neza ni ugukora ibikonoshwa by'ibishishwa (igikorwa cyo gusiga igishushanyo cy'ibishishwa n'ibishishwa byinshi kugira ngo habeho igikonoshwa cyo hanze. Nyuma y'uko igishushanyo cy'ibishishwa gishonga, hakorwa umwobo wo gusukamo icyuma gishongeshejwe). Umucanga wa Mullite ukoreshwa cyane cyane nk'ikintu gishongesha ibishishwa mu gikonoshwa cy'ibishishwa kandi ugashyirwa ku byiciro bitandukanye by'igikonoshwa, cyane cyane ibi bikurikira:
1. Igikoresho cyo hejuru (Kigena mu buryo butaziguye Ubwiza bw'Icyuma cyo gucukura)
Imikorere:Urusobe rw'amazi ruhura neza n'icyuma gishongeshejwe kandi rugomba gutuma ubuso burushaho kuba bwiza (hirindwa ko bugoramye cyangwa bugashonga) mu gihe runihanganira ingaruka z'icyuma gishongeshejwe.
2. Igikonoshwa cy'umugongo (gitanga imbaraga rusange no guhumeka neza)
Imikorere:Igishishwa cy'inyuma ni imiterere myinshi iri hanze y'urwego rw'ubuso. Gishyigikira imbaraga rusange z'igishishwa cy'ibumba (kirinda guhinduka cyangwa gusenyuka mu gihe cyo gusukwa) mu gihe gitanga ubushobozi bwo guhumeka (gusohora imyuka mu mwobo no gukumira imyenge mu gucukura).
3. Porogaramu zihariye zo gukata ibikoresho bikenerwa cyane
Ibyuma bikozwe mu buryo bushyuha cyane:nk'ibyuma bya moteri y'indege (ubushyuhe busukwa bwa 1500-1600°C), bisaba ko igishishwa cy'ibumba kihangana n'ubushyuhe bukabije. Kuba umusenyi wa Mullite udashobora guhindagurika cyane bishobora gusimbura umusenyi uhenze cyane wa zircon (aho ushonga ni 2550°C, ariko birahenze), bihura n'ibisabwa mu bushyuhe bwinshi mu gihe bigabanya ikiguzi.
Ku byuma bikoreshwa mu gukata ibyuma:nk'aluminiyumu na manyeziyumu (zikora cyane kandi zoroshye gukorana na SiO₂ mu mucanga wa quartz kugira ngo zikore inclusions), ubushobozi bwo guhagarara neza mu mucanga wa mullite bushobora kugabanya reactivity no gukumira "oxidation inclusions" mu gucukura.
Ku bijyanye n'imashini nini zikora neza:nk'amazu y'ibikoresho by'umwuka (ashobora gupima toni nyinshi), igishishwa cy'ibumba gikenera imbaraga nyinshi z'imiterere. Urukuta rw'inyuma rukozwe n'umusenyi wa mullite na binder rurakomeye cyane, bigabanya ibyago byo kwaguka no gusenyuka kw'ibumba.
4. Guhuza n'ibindi bikoresho bitera umwuka mubi
Mu musaruro nyawo, umucanga wa mullite ukunze gukoreshwa hamwe n'ibindi bikoresho kugira ngo wongere imikorere y'igishishwa cy'ibumba:
Uruvange n'umucanga wa zircon:Umucanga wa zircon ukoreshwa nk'urwego rw'ubuso (kugira ngo ubuso bube bwiza) n'umucanga wa mullite nk'urwego rw'inyuma (kugira ngo ugabanye ikiguzi). Ibi birakwiriye ku bikoresho byo gucukura bifite ubuso bukenewe cyane, nk'ibice by'indege.
Bivanze n'umucanga wa quartz:Ku bikoresho byo gusukamo ibintu bifite ubushyuhe buri hasi (nk'umuringa, aho gushonga 1083℃), bishobora gusimbura igice cy'umucanga wa quartz no gukoresha umucanga wa mullite udakomeye kugira ngo bigabanye imiyoboro y'ibishishwa.
| Uburyo bwo Gukoresha Ibikoresho Byo Gutunganya Ibikoresho By'Imashini | ||
| Igishishwa cy'ubuso rusange, ifu ya zirconium | 325 mesh + silika sol | Umusenyi: umusenyi wa zirconium ufite ubugari bwa mesh 120 |
| Urusenda rw'inyuma | Umeshi 325+silika sol+ifu ya mullite umeshi 200 | Umusenyi: umusenyi wa mullite ufite ubugari bwa mesh 30-60 |
| Urupapuro rwo gukomeza | Ifu ya Mullite ifite mesh 200 + silika sol | Umusenyi: umusenyi wa mullite ufite ubugari bwa mesh 16-30 |
| Gufunga ururenda | Ifu ya Mullite ifite mesh 200 + silika sol | _ |
Shandong Robert New Material Co., Ltd.iherereye mu Mujyi wa Zibo, mu Ntara ya Shandong, mu Bushinwa, ikaba ari ikigo gikoreramo ibikoresho birwanya ubukana. Turi ikigo kigezweho gihuza ubushakashatsi n'iterambere, umusaruro, kugurisha, igishushanyo mbonera n'ubwubatsi bw'itanura, ikoranabuhanga, no kohereza mu mahanga ibikoresho birwanya ubukana. Dufite ibikoresho byuzuye, ikoranabuhanga rigezweho, imbaraga zikomeye mu bya tekiniki, ubwiza bw'ibicuruzwa, n'izina ryiza. Uruganda rwacu rukora hegitari zirenga 200 kandi umusaruro w'ibikoresho birwanya ubukana buri mwaka ni toni 30000 naho ibikoresho birwanya ubukana ni toni 12000.
Ibikoresho byacu by'ingenzi bikozwe mu bikoresho birwanya ubushyuhe birimo:ibikoresho birwanya alkaline; ibikoresho birwanya silikoni ya aluminiyumu; ibikoresho birwanya imiterere idashushanyije; ibikoresho birwanya ubushyuhe; ibikoresho byihariye birwanya; ibikoresho bikora birwanya imikorere ya sisitemu zo gucukura zihoraho.
Ibibazo Bikunze Kubazwa
Ukeneye ubufasha? Menya neza ko usura urubuga rwacu rw'ubufasha kugira ngo uhabwe ibisubizo by'ibibazo byawe!
Turi uruganda nyakuri, uruganda rwacu rwihariye mu gukora ibikoresho birwanya ubushyuhe mu gihe kirenga imyaka 30. Twizeza gutanga igiciro cyiza, serivisi nziza mbere yo kugurisha no nyuma yo kugurisha.
Kuri buri gikorwa cyo gukora, RBT ifite sisitemu yuzuye ya QC y’imiterere ya chimique n’imiterere ifatika. Kandi tuzagerageza ibicuruzwa, kandi icyemezo cy’ubuziranenge kizatangwa hamwe n’ibicuruzwa. Niba ufite ibisabwa byihariye, tuzagerageza uko dushoboye kose kugira ngo tubigereho.
Bitewe n'ingano, igihe cyo kohereza kiratandukanye. Ariko twizeza kohereza vuba bishoboka kandi bifite ubuziranenge bwemejwe.
Birumvikana ko dutanga ingero ku buntu.
Yego, birumvikana ko mufite ikaze gusura ikigo cya RBT n'ibicuruzwa byacu.
Nta mupaka uhari, dushobora gutanga igitekerezo cyiza n'igisubizo gikwiye bitewe n'imimerere yawe.
Tumaze imyaka irenga 30 dukora ibikoresho birwanya ubushyuhe, dufite ubufasha bukomeye mu bya tekiniki n'uburambe bwinshi, dushobora gufasha abakiriya gushushanya amatanura atandukanye no gutanga serivisi imwe.
