Silicon Nitride Ceramic Ratchet

Silicon Nitride Ceramic Ratchetmerits

The greatest advantage of silicon nitride ceramic ratchets is first and foremost their high strength and excellent wear resistance. While ordinary metals are prone to changes in tooth shape due to fatigue wear, silicon nitride, with its high hardness and high bending strength, can keep the edge of the ratchet teeth clear for a long time, ensuring precise and reliable stopping action. It has excellent resistance to impact and chipping. The ratchet wheel is often accompanied by a large impact load at the moment of reverse locking, and the tooth tip and root are prone to cracking. Silicon nitride's excellent fracture toughness and resistance to thermal shock can effectively reduce the risk of chipping, tooth breakage, and localized cracking.

Categories: 氮化硅陶瓷零件Tags: 陶瓷结构件

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Description

Description

Advantages of Silicon Nitride Ceramic Ratchets

The high hardness of the silicon nitride material significantly reduces tooth wear, and the high flexural strength makes the tooth root less likely to fracture under instantaneous shock loads. Especially in high-frequency indexing mechanisms, the ratchet wheel may experience a large number of meshing actions per minute, silicon nitride ceramics can still maintain the same tooth spacing and tooth tip integrity for a long time. Silicon nitride's low thermal expansion allows it to maintain stopping accuracy in high-temperature transmission equipment without causing locking errors due to thermal expansion and contraction. For medical and semiconductor equipment, it also prevents metal abrasives from entering the system, improving cleanliness and reliability.

High strength and wear resistance
Highly resistant to bending and chipping
Spines with clear edges
Good thermal shock resistance
Corrosion-resistant and non-rusting
Highly clean and non-polluting

Applications of Silicon Nitride Ceramics

Silicon nitride ceramics have excellent mechanical, thermal and electrical properties. It is also one of the most thermodynamically stable high hardness industrial ceramic materials. It is ideal for bearing parts, especially those that need to work at high temperatures and pressures. Therefore, silicon nitride ceramic products are ideal for many industries, such as:

Rotary ball and roller bearings
Cutting Tools
Engine components: valves, rocker gaskets, sealing surfaces
Induction heating coil holder
Turbine blades, wheel blades, buckets
Welding and brazing fixtures
Heating Element Assemblies
crucible

Basic Properties of Silicon Nitride Ceramics

Silicon nitride ceramics are an inorganic ceramic material. Silicon nitride is very strong, especially hot pressed silicon nitride, which is one of the hardest materials in the world. It is characterized by high strength, low density and high temperature resistance.

Color: Gray and Gray-Black
Density: 3.15~3.25 g/cm3
Hardness: HRA 92~94
Maximum operating temperature: 1300 ~1600 °C
Thermal conductivity: 23-25 W.(MK)-1
Flexural strength: ≥900 Mpa
Fracture toughness: 6~8 (Mpa.m1/2)
Coefficient of thermal expansion (0~1400℃): 2.95~3×10^-6/C

Suppliers of Silicon Nitride Ceramics

To Good Ceramics is a professional ceramic supplier, we have many years of experience in producing high quality precision ceramic parts. We utilize our experienced team and in-depth knowledge of ceramic materials to create the best precision ceramic products for our customers at competitive prices.