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Precision Silicon Nitride Ceramic Ball Valve
• Machined on five-axis equipment, Precision Silicon Nitride Ceramic Ball Valve keeps its geometry stable throughout long duty cycles in flow control, metering and shut-off duty in petrochemical, chemical and semiconductor fluid lines.
• A machining tolerance of 0.005 mm guarantees an accurate fit, while excellent wear and corrosion resistance extends the service life of the equipment by 3-10x compared with metal parts.
• Available in a range of sizes and to customer drawings; batch quantities and tooling can be arranged on request.
1. Characteristics and advantages of product materials
• Machined on five-axis equipment, Precision Silicon Nitride Ceramic Ball Valve keeps its geometry stable throughout long duty cycles in flow control, metering and shut-off duty in petrochemical, chemical and semiconductor fluid lines.
• Excellent corrosion resistance, suitable for all kinds of acid and alkali conditions;
• Super hardness and fracture toughness of ceramic materials, products are not easy to wear;
• Neutral physicochemical index, no pollution to the ground material;
• Complex 3D modeling surface, five-axis five-joined surface.
2. Application
Suitable for valve core, plunger, mold, cutter, shaft, bearing, liner, sealing ring, etc.
3. Detection indicators
|
Detection items
|
A-ZR Y8 series |
A-ZR 3Y series |
PR-ZR Yellow zirconium series |
Detection standard |
|
ZrO2 content (%） |
89±0.5% |
94.5±0.5% |
94±0.5% |
GB/T 21114-2019 |
|
Density (g/cm³) |
≥ 5.9 |
≥ 6.0 |
≥6.0 |
GB/T 25995-2010 |
|
water absorption (%） |
＜0.05 |
＜0.05 |
＜0.05 |
GB/T 3299-2011 |
|
Thermal conductivity (20℃） |
3±0.5 |
3±0.5 |
3±0.5 |
ASTME 1269 ASTME 1461 |
|
Thermal expansivity (40-400℃） |
11±0.2 |
11±0.2 |
11±0.2 |
GB/T 16535-2008 |
|
Vickers Hardness (HV） |
≥1200 |
≥1200 |
≥1200 |
GB/T 16534-2009 |
|
Bending Strength (MPa) |
≥900 |
≥950 |
≥850 |
GB/T 6569-2006 |
|
Fracture Toughness (MPa.m） |
≥11 |
≥10 |
≥8 |
JISR 1607-2010 |
|
Impact toughness (Kl/㎡） |
≥20 |
≥20 |
≥20 |
GB/T 14389-1993 |
|
Compressive strength (MPa) |
≥2800 |
≥2800 |
≥2800 |
GB/T 8489-2006 |
|
Modulus Of Elasticity (GPa） |
≥200 |
≥210 |
≥200 |
GB/T 10700-2006 |
4. The machining accuracy of ceramic structural components
5、Production link display
