Property: | Wear Resistance |
---|---|
Application: | Refractory |
Use: | Drawn Arc Stud Welding Torches |
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Ceramic Ferrule for Stud Welding
1. Material: Cordierite ceramic
Name |
Alumina | Dense Cordierite | Porous Cordierite | Cordierite-Mullite | Mullite | Corundum mullite | |
Density(g/cm3) | 2.0~2.3 | 2.1 ~2.5 | 1.5 ~1.9 | 1.8~2.3 | 2.0 ~2.5 | 2.3 ~2.7 | |
Coefficient of heat expansion(×10-6K-1)(20~800°C) | ≤5 | ≤3.5 | ≤3.0 | ≤3.5 | ≤5 | ≤6 | |
Specific Heat (J/Kg.K)(20~1000°C) | 900~1150 | 900~1100 | 900~1100 | 900~1150 | 1000~1150 | 1100 ~1300 | |
Thermal Conductivity (W/m.k) (20~1000°C) | 1.5~2.0 | 1.5~2.5 | 1.2~1.8 | 1.5~2.0 | 1.5~2.0 | 1.5~2.5 | |
Impact Thermal Resistance(°C/min) | ≥300 | ≥300 | ≥350 | ≥350 | ≥350 | ≥300 | |
Max. Working Tem.(°C) | 1350 | 1300 | 1300 | 1320 | 1450 | 1550 | |
Water absorption(%) | 15-25 | ≤2 | 15~25 | 15 ~25 | 15~25 | 15 ~25 | |
Compressive strength(MPa) | ≥28 | ≥28 | ≥25 | ≥25 | ≥28 | ≥30 | |
Chemical composition (%) | Al2O3 | 55 ~65 | 25 ~38 | 28 ~38 | 40~52 | 60 ~70 | 70 ~80 |
SiO2 | 25~35 | 50 ~60 | 45 ~55 | 45 ~55 | 25 ~35 | 15 ~25 | |
MgO | 1~3 | 5 ~10 | 11 ~14 | 7~9 | 0 ~1 | 0 ~2 | |
others | <5 | <5 | <5 | <5 | <5 | < |
2. Feature:
1). Good concentricity and consistency.
2). Excellent wear and heat resistance.
3). High strength, endurability and anti-aging performance.
4). Extremely precise design as well as customized products.
3. Application:
They are widely used for magnetic force floating railway engineer,building bridge,building railway,large power plant,plane depot that needs wide span.
4. About us:
Shenxing is engaged in R&D, design, manufacture, construction, and operations for technical ceramic parts and components. LED lighting ceramic, electrothermal ceramic, ceramic resistors, electronic ceramic, steatite ceramic, zirconia ceramic, alumina ceramic and etc. are our main products.These products have good insulation and thermal conductivity. The advantages are irreplaceable. They are applied to power, high-frequency induction welder, audio, computer, LED, bathrooms, etc.
We can produce products according to your drawings or samples. Welcome you contact us for more information.I hope Shenxing can have the chance to give you the best service.
Packed in box separately.