特里先生有什么事吗？
宁波双洋电工材料有限公司
型号: NBR
品牌: NBRAM, Mitsubishi
材料: 橡胶
包装: Box In strong cartons,on exporting pallet
生产力: 100000
源产地: 中国
Main performance index about ceramic tube:
1. Heat treatment furnace and toughened furnace
2. Inner liner tube and heating tube in electric furnace
Features:
1.Great mechanical strength
2.High softening temperature
3.Good resistance to thermal impact
4.Small thermal expansion coefficient
5.Good chill and abrupt heat properties
Material
|
Item |
unit |
Alumina(1) |
Alumina(2) |
Zirconia |
||
|
content |
% |
95 |
99 |
99 |
|
|
|
Density |
g/cm3 |
≥3.6 |
≥3.8 |
5.89-6 |
|
|
|
Water absorption |
% |
<0.01 |
<0.01 |
0 |
|
|
|
Hardness |
HRA |
≥82 |
≥88 |
6-9 |
|
|
|
Bending strength |
MPA |
320 |
400 |
1100 |
|
|
|
Dielectric constant |
MHZ |
8.5 |
9.8 |
12 |
|
|
|
Dielectric strength |
KV/mm |
20 |
25 |
- |
|
|
|
Thermal expansion |
X10-6/K |
5.0-8.3 |
5.4-8.3 |
9.6 |
|
|
|
Volume Resistivity |
Ω.cm20 |
>10^15 |
>10^14 |
>10^12 |
||
|
Maximum Use Temperature |
°C |
1600 |
1750 |
900 |
|
|
|
Thermal Conductivity ( at R.T. ) |
W/(m.K) |
18-25 |
30 |
2.2 |
||
|
Vickers Hardness |
Gpa |
14 |
20 |
12 |
||
1). Excellent insulation ,security , long working life .1. Advantages :
2). Precise grinding and polishing.
3). Excellent heat radiation, small size ,more environmental and energy-efficient .
4). good thermal conductivity
5). large specific heat capacity
6). low pressure drop
7). good heat-shock resisting ability
8). Working temperature: 600℃-1200℃
2. Application :
1). Gas cooker,Water heater,Gas oven, Gas boiler,Air-conditioning and so on.
2). As ceramic parts of flexible pad and channel heaters at operations of pre and postweld heat treatment; Welding process, stress-relieving, pre-heating & post heating, other resistance-heating environment
3). halogen lamps, high and low pressure uv lamps, mercury lamps, uv lamp holders and heating tubes.
4). high-power electrical applicance and all kinds of insulation device.
Product Categories : Mica Products > Mica Tube
