Si3N4 Ceramic Block High Precision Silicon Nitride Block High Temperature Resistant
Silicon Nitride Ceramic Gripper Locator Block High‑Precision Si₃N₄ Positioning Block for Automation Fixture
Silicon Nitride Gripper Locator Block:
Different from metal and hard‑alloy gripper jaws, this Si₃N₄ positioning block combines high toughness, outstanding wear resistance and low thermal expansion. It is widely adopted in automated clamping fixtures, high‑temperature handling equipment, precision positioning and gripping processes. It effectively solves common problems of metal parts such as rapid wear, burr generation, magnetic interference, metal particle pollution and thermal deformation under working temperature. It is a high‑life consumable for semiconductor, new‑energy, precision assembly and high‑temperature automated production lines.
Si3N4 Ceramic Parts are a man made compound synthesized through several different chemical reaction methods. they are pressed and sintered by well developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance.
High Hardness & Superior Wear Resistance
Silicon nitride material delivers great anti‑abrasion performance. Under repeated clamping‑friction cycles, the gripper locator block resists surface scratching, denting and material spalling. Service life is significantly longer than steel or alloy jaws, reducing part replacement frequency and equipment downtime.
High Dimensional Stability & Low Thermal Expansion
Ultra‑low thermal expansion coefficient ensures minimal dimensional change even with temperature rise during continuous operation. It maintains precise positioning accuracy without thermal deformation.
Excellent Thermal Shock Resistance
With good thermal‑shock performance, the Si₃N₄ locating block tolerates cyclic hot‑cold alternation, avoiding cracking or chipping caused by drastic temperature changes.
Non‑magnetic & Zero‑metal Contamination
Silicon nitride ceramic is non‑magnetic and chemically inert. No metal debris will peel off during clamping operation. It prevents metal impurity pollution for high‑purity material processing and semiconductor‑related applications.
Great Corrosion Resistance
Resists erosion from most acid, alkali and corrosive gas environments. Suitable for working conditions with chemical vapors or corrosive media.
Precision Machinable for Complex Profiles
Supports precision grinding of grooves, locating holes, step surfaces, notches and special‑shaped contours. Tight tolerance can be achieved to perfectly match customers’ fixture assembly requirements.
Silicon Nitride Material Sheet
| Properties | Units | Silicone Nitride | |
| Mechanical | Density | gm/cc | 3.2 |
| Porosity | % | 0 | |
| Flexural Strength | Mpa | 830 | |
| Compressive Strength | Mpa | 2500 | |
| Elastic Modulus | Gpa | 310 | |
| Poisson's Ratio | / | 0.27 | |
| Hardness | kg/mm2 | 1580 | |
| Fracture Toughness KIC | Mpa *m 1/2 | 6.1 | |
| Thermal | Heat Conductivity | W/ m*k | 30 |
| Coefficient of Thermal Expansion | 10⁻⁶/K | 3.3 | |
| Specific Heat | j/kg*K | / | |
| Thermal Shock Resistance | °C | / | |
| Max UseTemperature | °C | 1400 | |
| Electrical | Dielectric Strength | ac-kv/mm | / |
| Dielectric Constant | / | 8 | |
| Loss Tangent | / | / | |
| Volume Resistivity | ohm•cm | >1014 | |
Features:
● High Hardness
Silicon nitride exhibits extremely high hardness, making it suitable for fields such as wear-resistant and cutting tools.
● Excellent Wear Resistance
Silicon nitride ceramic exhibits outstanding wear resistance, making it suitable for applications in high-wear environments.
● Superior Insulating Performance
Silicon nitride ceramic possesses excellent electrical insulation properties and chemical stability, making it widely used in the electronics and semiconductor industries.
● High Temperature Stability
It can maintain stability in high-temperature environments, making it suitable for applications like high-temperature heaters and furnaces.
Applications:
Rotating ball bearings and rollers bearings
Cutting tools
Engine components: valves, rocker arm pads, seal faces
Induction heating coil supports
Turbine blades, vanes, buckets
Welding and brazing jigs
Heating element components
Crucibles
Metal tube forming rolls and dies
TIG / Plasma welding nozzles
Weld positioners
Precision shafts and axles in high-wear environments
Thermocouple sheaths and tubes
Semiconductor process equipment
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