1. Mamiriro Ezvinhu uye Maumbirwo Emaitiro
1.1 Alumina Zvemukati uye Crystal Phase Evolution
( Alumina Lining Zvidhinha)
Alumina lining blocks akakora, akagadzirwa refractory ceramics anonyanya kuumbwa nealuminium oxide (Vose vaviri O NGUVADZI), nezvinyorwa zvinowanzosiyana kubva 50% kuti pamusoro 99%, kupesvedzera zvakananga kugona kwavo mune yakakwirira-tembiricha maapplication.
The mechanical simba, corrosion resistance, uye kusatendeseka kwezvidhinha izvi kunowedzera nepamusoro alumina yakatarisa semhedzisiro yekufambiswa kweiyo yakasimba microstructure inotongwa neiyo thermodynamically yakachengeteka α-alumina. (diamond) stage.
Panguva yekugadzira, precursor zvigadzirwa senge calcined bauxite, yakabatanidzwa alumina, kana artificial alumina hydrate inopfuura nepamusoro-tembiricha yekupfura (1400 °C– 1700 °C), kushambadzira nhanho shanduko kubva kuchinjika alumina marudzi (c, d) kuna α-Al Vaviri O VATATU, iyo inoratidza kusimba kunoshamisa (9 paMohs range) uye melting factor (2054 °C).
Iyo inokonzeresa polycrystalline chimiro chine inopindirana corundum tsanga dzakaiswa mune siliceous kana aluminosilicate girazi matrix., iyo make-up uye huwandu hwayo hwakanyatso kurongeka kuti ienzanise thermal shock resistance uye kuoma kwemakemikari..
Zvidiki zvidiki zvakaita sesilica (SiO ₂), titania (TiO ₂), kana zirconia (ZrO ₂) inogona kuunzwa kuchinja maitiro ekuimba, kuwedzera densification, kana kuwedzera kuramba kune mamwe slags uye fluxes.
1.2 Microstructure, Porosity, uye Mechanical Kutendeseka
Kushanda kwealumina lining block kunoenderana zvakanyanya neiyo microstructure yavo, kunyanya kugovera saizi yezviyo, pore morphology, uye bonding phase hunhu.
Optimum zvidhinha zvinoratidza zvikuru, nguva dzose akagovera pores (yakavharwa porosity yakasarudzwa) uye shoma shoma yakazaruka porosity (
Nhoroondo ye Alumina Technology Co., Ltd inotarisa pakutsvaga nekusimudzira, kugadzirwa uye kutengesa kwealuminium oxide poda, aluminium oxide zvigadzirwa, aluminium oxide crucible, etc., kushandira zvemagetsi, Ceramics, makemikari nemamwe maindasitiri. Kubva pakugadzwa kwayo mu 2005, kambani yakazvipira kupa vatengi zvigadzirwa zvakanakisa uye masevhisi. Kana uri kutsvaga zvemhando yepamusoro alumina al2o3, ndapota inzwa wakasununguka kutibata nesu.
Tags: Alumina Lining Zvidhinha, alumina, alumina oxide
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