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Capital Refractories Limited

各式坩埚

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粉压式坩埚

>凯比拓耐火材料公司提供一系列不同质料的粉压式坩埚，内容量从2公斤到75公斤不等。

粉压式坩埚的优点包括：
  1. 品质选择多样。
  2. 多种坩埚大小选择。
  3. 光滑内壁，减低杂质混入机会。
  4. 坩埚各部份材质平均一致。
  5. 价格便宜。
除此之外，本公司提供一系列震铸式坩埚。
Quality
产品说明
Alumina
General purpose crucibles with good resistance to acidic and basic slags. It is used for a wide range of alloys and stainless steels.
  AL97I Superior erosion resistance .
AL88I Improved thermal shock resistance.
Chrome-alumina Chrome-enriched crucible has a high resistance to slags. Preferred to alumina in more arduous applications.
CA93I Superior erosion resistance
CA91I Specially formulated to withstand the most severe thermal shock applications
CA84I
Improved thermal shock resistance.
Magnesia
High resistance to basic slags. Used in vacuum melting of Ni, Co and Fe-based alloys.
MG88I
Used in vacuum melting of Ni, Co and Fe-based alloys.
MG95I
Resistant to the special alloys used in semi-conductor and sputer target industries .
Mullite ML72I
High thermal shock resistance. Resistant to basic slags.
Zircon ZN66I
Good resistance to acidic slags. It is used for non-ferrous and precious metals.
Zirconia
High resistance to acidic slags. Used in the vacuum melting of Superalloys and precious metals
  ZC93I General applications.
ZC95I High thermal shock resistance for noble metals.
ZC96I Fine grained structure for noble metals. for noble metals.
ZM94I Magnesia-stabilised with enhanced thermal shock resistance for superalloys.
ZY97I Suitable fro cobalt & nickel superalloys.

Quality
成份分析 / Wt. %
Al2O3
SiO2
MgO
CaO
Fe2O3
Cr2O3
ZrO2
Alumina AL97I
97.5
1.6
0.1
< 0.1
AL88I
88.5
2.2
0.1
0.2
Chrome-alumina CA93I
93.4
2.2
0.1
< 0.1
3.6
CA91I
91.5
2.2
0.1
<0.1
5.3
CA84I
84.3
9.0
0.1
0.2
4.8
Magnesia MG88I
3.5
3.8
88.0
3.8
0.2
MG95I
0.5
0.8
95.0
2.5
0.1
Mullite ML72I
71.8
25.7
0.2
0.5
Zircon ZN66I
0.8
32.5
0.2
0.1
66.6
Zironia ZC93I
0.8
1.2
4.0
0.1
93.0
ZC95I
1.0
1.5
3.8
<0.1
92.9
ZC96I
0.6
0.9
4.4
0.1
94.0
ZM94I
0.2
0.1
1.8
0.1
CeO2
3.9
93.5
ZY97I
0.7
0.2
1.8
0.2
Y2O3
3.6
94.7

Quality
特性
材料密
/ g cm-3
透气性
/ %
热膨胀系数
/ MK-1
热传导
/ W m-1 K-1
最高温度
(摄氏)
Alumina AL97I
2.95
23.8
8.0
4.2
1600
AL88I
2.95
23.8
8.0
4.2
1600
Chrome-alumina CA93I
3.05
23.0
8.2
3.4
1800
CA91I
3.10
21.5
8.2
3.5
1800
CA84I
2.85
20.0
7.6
3.4
1800
Magnesia MG88I
2.85
17.0
14.5
2.4
1700
MG95I
2.95
15.0
13.0
2.5
1750
Mullite ML72I
2.43
21.5
4.2
1.8
1550
Zircon ZN66I
3.60
21.9
4.6
2.1
Zirconia ZC93I
4.35
20.0
8.4
1.5
1850
ZC95I
4.50
18.5
8.5
1.6
1850
ZC96I
4.50
18.5
8.5
1.6
1850
ZM94I
4.65
18.7
8.5
1.7
1850
ZY97I
4.37
24.7
8.5
1.6
1850

本公司也提供一系列的 辅助产品 用以支援粉压式坩埚。

Capital Refractories - The first name for quality

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