Alumina Ceramic Valve Core

Core Technologies & Process Innovations

1. Precision Structural Design

• Spherical Sealing Pair

Ra ≤ 0.02 μm; leakage rate < 0.01 mL/min at 6 MPa

Spherical roundness < 0.5 μm (air flotation lapping)

• Flow Channel Optimization

CFD-designed low-turbulence flow (pressure loss ↓40%, flow ↑15%)

V-notch anti-cavity structure (cavitation damage ↓90%)

2. Material Strengthening Solutions

• Toughening Treatment

ZrO₂ phase transformation toughening; KIC = 6 MPa·m¹ᐟ²; impact resistance ×3

• Surface Functionalization

DLC coating: friction ↓ to 0.05; wear life ×10

TiN coating: erosion life >100,000 hours in slurry

Applications & Solutions

1. Industrial Harsh Media Control

• Chemical Valves

Resists 98% H₂SO₄, 40% NaOH; pH 0–14

Zero metal ion leaching; high-purity production safe

• Seawater Desalination

Cl⁻ resistant (50 ppm; annual corrosion <0.001 mm)

Anti-biofouling surface (attachment ↓>95%)

2. Energy & Environmental Equipment

• High-Temp Gas Valves

Resists 800°C H₂S; service life >5 years

Thermal expansion matched with Inconel (<0.01 mm/100°C)

• Nuclear Boric Acid Control Valves

Radiation resistant (>10⁶ Gy; strength retention >98%)

Low hysteresis; repeatability ±0.1°

3. High-Reliability Civil Scenarios

• Smart Sanitary Thermostatic Valves

Lead-free (NSF/ANSI 61 certified)

Torque ≤1.5 N·m (↓60% vs metal)

• Water Purification Solenoid Valves

Zero leachables (TDS <1 ppm)

Fast response (<10 ms)