Wuxi Special Ceramic Electrical Co.,Ltd
High quality,small trial produce and quick delivery.
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Automatic Ceramic Nozzle Body Ceramic Spray Nozzle
Product Description
Alumina ceramics is high hardness,high heat resistance,good wear resistance,high electrical insulation,high corrosion resistance,etc
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.Alumina ceramics are generally white but may also be pink or
ivory.The color is derived from either the sintering additives or impurities in the raw materials.
1. High hardness.
2. High heat resistance : Alumina ceramic has excellent thermal stability,which means that it is
widely used in areas where resistance to high temperatures is essential.
3. Good wear resistance : Alumina ceramic is the material of choice for alumina wear parts.
4. High electrical resistivity : Alumina is an electrically insulating material.
5. High corrosion resistance : It is insoluble in water and only slightly soluble in strong acid and
alkaline solutions. Good chemical stability of alumina leads to high corrosion resistance.
Ceramic material composition:
A. 95%--99.99% Alumina (Al2O3) · Silicon Carbide · Silicon Nitride
B. TTZ: Magnesia partially stabilized Zirconia (ZrO2)
C. YTZP: Yttria partially stabilized Zirconia (ZrO2)
D. ZDY: Yttria fully stabilized Zirconia (ZrO2)
The properties of ceramic:
A. Excellent physical & chemical stability ·High temperature resistance
B. Excellent wear & pressure & corrosion& insulation resistance and thermal conductivity
| Properties | Units | AL2O3 | ZrO2 | SiC | Si3N4 |
| Density | g/cm3 | 3.65-3.93 | 5.95-6.0 | 3.12 | 3.23 |
| Water absorption | 0 | 0 | 0 | 0 | 0 |
| Poission`s ratio | / | 0.21-0.22 | 0.3 | 0.17 | 0.26 |
| HV hardness hv | MPa | 1650 | 1300-1365 | 2800 | 1500 |
| Flexural strength | MPa | 310 | 950 | 390 | 720 |
| Heat conductivity | W/m*k | 26-30 | 2-2.2 | 120 | 25 |
| Electrical resistivity | Ω*mm2/m | >1016 | >1015 | >103 | >1013 |
| Dielectric constant | / | 9.6 | 29 | 9.66-10.03 | / |
| Dielectric strength | KV/mm | 8.7 | 9 | / | / |
| Coefficientof thermal expansion | 10-16/k | 7.9-8.5 | 10.5 | 3 | 3.2 |
| Modulus of elasticity young`s mod | GPa | 280-340 | 210 | 440 | 300 |
| Flexural strength(700℃) | MPa | 230 | 210 | 380 | 450 |
| Compressive strength | MPa | 2200 | 2000 | 1800 | 2300 |
| Max use temperature | ℃ | 1750 | 1050 | 1550 | 1050 |
| Resistance to acid alkaline | / | high | high | high | high |
| Thermal shock resistance | T(℃) | 180-220 | 280-350 | 230-260 | / |
| Fracture toughness | MPa*m1/2 | 4.2 | 10 | 3.9 | 6.2 |
| Tensile strength | MPa | 248 | 250 | / | / |
produce parameters
| Dimensional accuracy | Up to 0.001mm |
| Smoothness | Highest possible mirror |
| Concentricity | Up to 0.003mm |
| Parallelism | Up to 0.002mm |
| The inner hole tolerance | The minimum 0.005mm |
| Straight flute | The narrowest 0.1x100mm |
| The thickness of the size | Minimum to 0.02mm |
| The screw thread | Minimum internal thread M2 |
| Cylindricity | Up to 0.004mm |
| The linear tolerance | Up to 0.001mm |
| The smallest aperture | The minimum 0.07mm |
| Precision process | CNC maching,grinding,lapping |
| Surface finish | Glazed,polishing or metallized |
Additional Information:
A. In stock items will typically ship in a few working days.
B. Unit price and estimated ship dates will be calculated when the length and quantity are specified.
C. Diameter tolerance ± 3% or ± 0.003" (0.076 mm), Straightness: ≤ 0.003"/1.000" cumulative.
D. Can be customized
Customization:
As a manufacturer of ceramic parts, we offer customization of ceramic special sizes and shapes.High Precision, Fast Delivery Time, High Composition (with test report).
Lead time: 10-20 working days for the mass with free sample of mass ; Minimum order quantity : 1qty
Our Company
Wuxi Special Ceramic Electrical Co.,Ltd mainly produces alumina, Silicon nitride, Zirconia, Steatite, Boron nitride, Cordierite,mullite products, widely used in metal welding, electronic conductor, mechanics, assembling, insulation, chemicals, instrument, textile, nuclear industry, aerial field.We accept trial produce according to the drawing or sample.It usually takes 15 days to finish trial product.Mass produce usually takes 30 days.Goods' package is carton or PLT.It can be negotiable with each other.
We mainly sell goods to toshiba lighting group in Japan and Europe.Our aim is to deliver goods with high quality at quick delivery date.
Ceramic Nozzle and Insulation Sleeves for welding equipment
Quality guarantee:mass produce by 100% inspection