Type of structure models: closed-shaped and two-pass of protection tube; round shape and oval shpae of insulating tube, and divided into single hole, double holes, porous holes. In addition, threaded pipe, prism pipe.
Material: alumina, corundum.
Usage:
Mainly used in Temperature Measurement Instrument and Thermocouple as purpose of protection, insulation;
In industrial resistance furnace, laboratory furnace, heat treatment furnace as the furnace tube;
In steel chemical analysis as carbon-identification tube and sulfur tube;
In other high temperature resistance, acid-alkali-rot-resistance instrument as components.
Characters: High mechanical strength, Good thermal conductivity,Strong thermal shock resistance, High softening temperature, High temperature insulation and High-frequency characteristics, resistance to chemical attack.
Main Parameter:
|
Item
|
High Alumina
|
Corundum
|
|
Working Temperature（℃）
|
Long Period 1550 Short Period 1600-1700
|
1600
|
|
Max Working Temperature（℃）
|
1600
|
1800
|
|
Hardness（Mohs）
|
7
|
9
|
|
Water Absorption（%）
|
＜0.02
|
0.01—0.02
|
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