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The grading wheel is the core component of powder sorting equipment, such as air flow classifiers and centrifugal classifiers, which is used to accurately grade powders based on differences in particle size, density, or shape. Silicon nitride ceramic grading wheels are made of high-performance silicon nitride ceramic materials. With their unique physical and chemical properties, they are gradually replacing traditional metal or ordinary ceramic grading wheels in high-end industrial fields.
STRUCTURE AND WORKING PRINCIPLE:
Grading wheels are usually composed of discs, blades, and flow channels, which achieve particle sorting by balancing the centrifugal force generated by high-speed rotation with the drag force of the airflow. The silicon nitride ceramic grading wheel is manufactured using precision molding and sintering processes, and its structural design optimizes sorting efficiency and accuracy, making it particularly suitable for grading ultrafine powders ranging from micrometer to submicron levels.
FEATURES:
1.Ultra high wear resistance
2.Excellent high-temperature stability
3.Excellent corrosion resistance
4.Low density and high rigidity
5.Self lubrication and surface smoothness
6.Insulation and Non magnetism
ADVANTAGES:
1. The density of the grading wheel of the silicon nitride airflow crusher is 3.2g/m3, and its own weight is 2/3 of that of the metal material.
Silicon nitride ceramics themselves are inert substances and do not undergo chemical reactions with the powder during the grinding process, which can effectively ensure the purity of the powder material and the quality of the product.
2. The hardness of silicon nitride ceramics is second only to that of diamond. Its wear resistance far exceeds that of other materials, greatly increasing the service life of the product by 2 to 3 times.
Silicon nitride ceramic material can greatly increase the speed of the grading wheel. On the basis of its original structure, it can increase the speed by 1200 revolutions per minute, and the speed stability is good, greatly improving the strength of the grading wheel, increasing the grading fineness, and increasing the yield.
3. Not only does it effectively solve the problems of wide precision and short service life of the grading wheel, but it also changes the traditional installation groove, groove body, and blade installation of the grading wheel, increases the connection strength, and ensures the stability and firmness of the device under high-speed operation. Our company has complete imported equipment for powder preparation, dry pressing, isostatic pressing, air pressure sintering, various CNC grinders, machining centers, etc.
