Udupira twa Alumina Ceramic tudashira: Twakozwe mu rwego rwo kurinda kwangirika gukabije

Ibice bya alumina bya keramike bidashirabyakozwe neza bivuye kuri okiside ya aluminiyumu ifite ubuziranenge bwinshi (Al₂O₃ ≥ 92–99%) binyuze mu gukanika byumye no gushyushya ubushyuhe buri hejuru kuri 1,500–1,700°C. Ubu buryo bugezweho bwo gukora butanga ibikoresho bya ceramic bifite ubukana budasanzwe—bipima 9 ku gipimo cya Mohs na HRA 80–90 ku gipimo cya Rockwell, icya kabiri nyuma ya diyama. Bifite ubucucike bwa 3.60–3.85 g/cm³, ibi bice bipima hafi kimwe cya kabiri cy'icyuma, bigabanya cyane umutwaro w'ibikoresho mu gihe bitanga uburinzi bwiza bwo kwangirika. Ibikoresho bigaragaza ko amazi make cyane ari munsi ya 0.01%, bigatuma imikorere ihoraho ndetse no mu bidukikije byuzuyemo ubushuhe.

Ubudahangarwa bw’ibikoresho bya alumina ceramic butuma bimara igihe kirekire kandi bigagabanya ikiguzi cyo kubibungabunga. Isuzuma ryigenga rigaragaza ko kudahangarwa kwabyo kungana n’inshuro 260-266 z’icyuma cya manganese n’inshuro 170-171.5 z’icyuma cya chromium cast cast. Ingufu zo gukanda zigera kuri ≥2.000 MPa n’imbaraga zo gukanda za 255-300 MPa, izi blok zihanganira imitwaro ikomeye idacika. Ubukana bwazo bwo gucika (KIC) bwa ≥4.8 MPa·m¹/² butuma ziramba mu bihe by’imihangayiko. Ibi bipimo bituma blok za alumina ceramic ziba igisubizo cyiza cyo gukoresha mu bikoresho byambarwa cyane nka chutes, hoppers, cyclone, na sisitemu zo gufata ibikoresho.

Kuva mu bucukuzi bw'amabuye y'agaciro no gutunganya amabuye y'agaciro kugeza ku gukora sima, gukora ibyuma, gutanga ingufu zishyushye, no gutunganya imiti, ibibumba bya alumina bidashira byagaragaje agaciro kabyo mu nganda aho gushwanyaguza ibikoresho ari ikibazo cy'ingenzi. Biboneka mu byiciro bya Al₂O₃ purity bya 92%, 95%, na 99%, ibi bice bishobora guhindurwa kugira ngo bihuze n'ibisabwa byihariye, hamwe n'ubuziranenge bwinshi butanga uburyo bwo kongera kwangirika no kudashwanyaguza. Mu gushyira ibibumba bya alumina mu bice by'ingenzi byo kwangirika, abakora uruganda bashobora kugabanya cyane igihe cyo kudakora kitateganijwe, kugabanya ububiko bw'ibikoresho bisimbura, no kugabanya ikiguzi cyose cyo gutunga ibikoresho mu gihe cyose cy'ubuzima bw'ibikoresho.