堇青石—莫来石棚板： 是以堇青石，莫来石两种材料混合成型，经高温烧结而成。
Cordierite-Mullite Board: It is made by high sintering cordierite and mullite together.
·优点：
Advantage:
具有良好的热稳定性，使用寿命长。特别适用在陶瓷、玻璃、冶金、化工等快速烧成的辊道窑上使用。
Have the good and hot stability, the service life is long. Apply in ceramics, glass, metallurgy, chemical engineering etc areas.
·常用规格(mm)：
Dimension in common usage (mm):
600*500 600*470 600*400 500*500 500*370 500*340 500*450 485*460 450*450 450*420 420*380 360*360 340*340 330*330 320*320 310*310
注：厚度可按客户要求生产
Note :The thickness can be produced by customers’ require
·堇青石—莫来石棚板理化指标
| 化学成分 | 指标 | 物理性能 | 指标 |
| Al2O3 | 40∽45% | 体积密度（g/cm3) | 2.0∽2.1 |
| SiO2 | 45∽50% | 显气孔率(%) | 20∽26 |
| MgO | 3∽6% | 荷重软化温度(℃) | 1400 |
| Fe2O3 | | 膨胀系数20-1000℃ | 0.35∽0.4 |
| | | 常温抗折（Mpa） | 10∽11 |
| | | 吸水率% | 6∽8 |
| 使用范围 | 安全使用工作温度1250℃以下窑炉 |
·Cordierite-Mullite Board Technique Index
| Chemical Composition | Contents | Physical Property | Index |
| Al2O3 | 40∽45% | volume concentration（g/cm3) | 2.0∽2.1 |
| SiO2 | 45∽50% | apparent porosity(%) | 20∽26 |
| MgO | 3∽6% | refractoriness under load(℃) | 1400 |
| Fe2O3 | | swell factor 20-1000℃ | 0.35∽0.4 |
| | | normal temperature antiflex cracking（Mpa） | 10∽11 |
| | | water absorbing capacity% | 6∽8 |
| Serviceable Range | Safety usage in the kiln under 1250℃ |
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