Kusiyana ufa woyera wa corundum ndi aluminiyamu ufa

White corundum ufa ndi alumina ufa ali ndi maonekedwe ofanana ndi mayina ofanana. Anthu ambiri amafuna kumveketsa kusiyana pakati pawo. Otsatirawa a Qianjiaxin Refractories adzasiyanitsa ndi zomwe adapanga.

1. White corundum ufa

(1) Mawonekedwe a kristalo: dongosolo la crystal trigonal;

(2) Kuchulukana: 3.90 g/cm3;

(3) Kuuma: Knoop kuuma 2000-2200Kg / mm2, Mohs kuuma 9.0;

(4) Malo osungunuka: 2250C;

(5) Kutentha kwakukulu kwa ntchito: 1900C;

(6) Kutentha kwapadera (Cal / gC): 0.26 (20-90C);

(7) Matenthedwe madutsidwe: 900C pa firiji (Cal/cm3.sec.C);

(8) Refractive index: e=1.760 w=1.768 (Na line);

(9) Coefficient of linear expansion: (7-9)*10^-6/K(0-1600C).

2. Alumina ufa

(1) Maonekedwe: ufa woyera, crystalline gawo γ gawo;

(2) Avereji ya kukula kwa tinthu (nm): 20±5;

(3) Zokhutira%: zazikulu kuposa 99.9%;

(4) Malo osungunuka: 2010 ℃-2050 ℃;

(5) Malo otentha: 2980 ℃;

(6) Kuchulukana kwachibale (madzi = 1): 3.97-4.0;

(7) Mtundu: woyera, wakuda wabuluu pambuyo powerengera.

White corundum ufa angagwiritsidwe ntchito ngati kukhudzana TV, insulators ndi mwatsatanetsatane kuponya mchenga, etc. Alumina ufa ze angagwiritsidwe ntchito conduction kutentha, kupukuta, electroplating, chothandizira, etc.