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{"title":"Fan - Shaped Sapphire Optical Windows , Sapphire Glass Lens For Epi - Ready","imgUrl":"https:\/\/img.ismap.com\/nimg\/30\/1f\/1b1bbe6f7d1f0d4e9c0222d87cf7-200x200-1\/fan_shaped_sapphire_optical_windows_2c_sapphire_glass_lens_for_epi_ready_wafer.jpg","attrs":{"Brand Name":"zms","Model Number":"lens-033","Place of Origin":"china","Minimum Order Quantity":"3pcs"}}
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Precision Sapphire Discharge Needle with Tapered Tip Sapphire Crystal Rod
A sapphire discharge needle is a precision discharge component manufactured from single-crystal sapphire (Al₂O₃). Its core characteristics stem from the physical and chemical properties of sapphire:
1. Crystal Structure
Trigonal crystal system with tightly arranged atoms, providing ultra-high hardness (Mohs 9) and compressive strength (2.1 GPa).
2. Thermal Properties
Melting point of 2050°C and thermal conductivity of 23–26 W/(m·K) (parallel to the c-axis), enabling stable operation across a wide temperature range (-40°C to 300°C).
3. Electrical Properties
Dielectric constant of 9.4–11.58 and insulation strength ≥10 kV/mm, supporting high-voltage discharge (typical range: 8–12.5 kVpp).
Sapphire Discharge Needles Key Features and Advantages
1. Precision Machining Capability
Tip Precision: Guided mode growth technology ensures tip curvature radius ≤5 μm and discharge point diameter ≤10 μm, sapphire discharge needles ideal for nano-scale electrostatic elimination.
Surface Treatment: Sapphire discharge needles's ultra-precision grinding achieves surface roughness Ra ≤5 Å, minimizing arc diffusion during discharge.
2. Longevity and Reliability
Abrasion Resistance: Sapphire’s hardness is 3× that of tungsten steel, sapphire discharge needles enabling 10⁶ discharge cycles (vs. 10⁴ for conventional tungsten needles).
Chemical Inertness: Sapphire discharge needles resists dust adhesion, extending cleaning intervals to 30 days (vs. 7 days for standard materials).
3. Multi-Scenario Adaptability
Voltage Range: Sapphire discharge needles supports pulse DC (DC) and AC modes with ±0.1 kV voltage regulation precision.
Environmental Tolerance: Sapphire discharge needles operates stably in humidity 10–95% (non-condensing) and altitudes up to 5000 m.
4. Smart Integration
Real-Time Monitoring: Integrated temperature sensors (±0.5°C accuracy) and current feedback systems enable automatic shutdown during anomalies.
A: A sapphire discharge needle is a precision electrostatic elimination component made from single-crystal sapphire (Al₂O₃), used to neutralize static electricity in industrial and electronic applications.
2. Q: How to maintain a sapphire discharge needle?
A: Regularly clean the needle tip with alcohol to remove contaminants and inspect for wear, replacing it if discharge efficiency declines.
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014.
We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014.
We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi...
