Semiera Energy Technology Co., Ltd. est un fournisseur de premier plan spécialisé dans les consommables de plaquettes et de semi-conducteurs avancés. Oxyde d'aluminium et etc. En tant que fournisseur de confiance, nous comprenons l'importance des consommables dans le processus de fabrication, et nous nous engageons à fournir des produits qui répondent aux normes de qualité les plus élevées pour répondre aux besoins de nos clients.
Silicon nitride combined with silicon carbide kiln has the characteristics of high temperature strength, good thermal shock resistance, easy deformation, oxidation resistance, corrosion resistance, good thermal conductivity and so on.
|
Article |
Firebrick index |
Kiln specification |
Index of shaped product |
|
Apparent porosity（%） |
<16 |
<16 |
<14 |
|
Densité en vrac（g/cm3） |
2 2.65 |
2 2.65 |
2 2.68 |
|
Compressive strength at room temperature（MPa） |
2 160 |
2 170 |
2 180 |
|
Bending strength at room temperature（1400X：） MPa |
2 40 |
2 45 |
2 45 |
|
High temperature bending strength（1400r ） MPa |
2 50 |
2 50 |
2 50 |
|
Coefficient of thermal expansion（110CTC） xioVC |
<4.18 |
<4.18 |
<4.18 |
|
Thermal conductivity（1100C） |
216 |
2 16 |
216 |
|
Refractories（°C ） |
1800 |
1800 |
1800 |
|
0.2 MPa Softening temperature under load（X：） |
1600 |
1600 |
> 1700 |
|
Maximum operating temperature （°C） |
1550 |
1550 |
1550 |
The products are widely used in ceramic grinding wheel, high aluminum products, aluminum porcelain ball, industrial kiln, electronic ceramic, high voltage electric porcelain, sanitary ware, daily porcelain, nitride alloy and foam ceramics and other industries.
The wear resistance of Si3N4-SiC material is 3.13 times that of wear-resistant steel (Crl5Mo3), and the weight is only 1/3 of that of wear-resistant steel (Crl5Mo3).
The corrosion resistance quality reduction values of Si3N4-SiC and calcium carbide and alumina in various solutions are as follows:
|
Test solution |
Temperature（”C） |
Si3N4-SiC |
Common ceramics |
Aluminium carbide |
Aluminium oxide |
|
98 %Sulfuric acid |
100 |
1.8 |
55.0 |
> 1000 |
65,0 |
|
50 %Sodium hydroxide |
100 |
2,5 |
> 1000 |
5.0 |
75.0 |
|
53 %Hydrofluoric acid |
25 |
< 0.2 |
7.9 |
8.0 |
20,0 |
|
85 %Phosphoric acid |
100 |
< 0.2 |
8.8 |
55.0 |
> 1000 |
|
70 %Nitric acid |
100 |
< 0.2 |
0.5 |
> 1000 |
7,0 |
|
45 %Potassium hydroxide |
100 |
< 0.2 |
> 1000 |
3.0 |
60,0 |
|
25 %Hydrochloric acid |
70 |
< 0.2 |
0.9 |
85.0 |
72,0 |
|
10% Hydrofluoric acid +57% Nitric acid
|
25 |
< 0.2 |
> 1000 |
> 1000 |
16,0 |
