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| Categories | Thermocouple Components |
|---|---|
| Brand Name: | GME |
| Model Number: | Mgo rod |
| Certification: | CE |
| Place of Origin: | China |
| MOQ: | 500pcs |
| Price: | USD$0.002/pc |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | 100000pcs per month |
| Delivery Time: | 30days |
| Packaging Details: | paper carton, wooden carton |
| Material: | Magnesium oxide ceramic |
| Color: | White / Ivory |
| Bores: | Single,two,four or multi bores |
| Shape: | Round, square, rectangular, oval |
| Usage: | Works as refractory material |
| Company Info. |
| Wuhan Global Metal Engineering Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
China Steatite Ceramic Thermocouple Insulating Beads for Electrical Insulators
Description:
Applications of Thermocouple Insulator:
Alumina is the best-known advanced ceramic material, is widely used in automotive, petro-chemical, fluid control,material transfer, Industry,electrical and electronic, semiconductor.Sapphire is single-crystal alumina.
Alumina ceramic is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness.
Steatite is made of mineral talc (3Mgo 4Sio2 H2O) as the main raw material, adding appropriate amounts of clay, BaTi03 and other ingredients, and mixing and grinding, molding and high temperature sintering. Used for insulating parts
The specification of Thermocouple Insulator:
| Material | Unit | Al2O3-99.% | Al2O3-99% |
| Items | |||
| Al2O3 | % | 99.7 | 99.3 |
| SiO2 | % | <0.1 | — |
| Density | g/cm3 | 3.95 | 3.88 |
| Water Absorption | % | 0 | 0.01 |
| Flexural Strength | Mpa | 450 | 350 |
| 20°C Leakage rate | Torr/L.sec | <10-11 | <10-11 |
| High Temperature Curve | mm | 1700°C 0.2mm is allowed | 1600°C 0.2mm is allowed |
| High Temperature Bonding | 1700°C Not | 1700°C Not | |
| 20~1000°C Coefficient of Linear Thermal Expansion | mm.10-6/°C.m | 8.6 | 8.2 |
| Thermal Conductivity | W/m.K | 25 | 25 |
| Breakdown Voltage | KV/mm | 20 | 20 |
| 20°C DC Volume Resistivity | Ohm/cm | 1014 | 1014 |
| High Temperature Volume Resistivity | 1000°C MΩ | ≥0.08 | ≥0.08 |
| 1300°C MΩ | ≥0.02 | ≥0.02 | |
| 1550°C Thermal Shock | — | Did not crack in 6 times cycle at 1550°C | Did not crack in 6 times cycle at 1550°C |
| Limit of Application | °C | 1900 | 1800 |
| Max Manufacturing Length for Tube | mm | 1600 | 1600 |
Applications
* Insulating washers or bushings
* Supports for heating elements
* Electrical insulators
* Stand-off insulators
* Lighting insulators (supports, bases, etc.)
* Spacers
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