ジルコニア・セラミック・リングの特性とは？
In modern industry and technology, the choice of materials often determines the upper limit of product performance. Zirconia ceramic ring, as a high-performance engineering ceramic component, stands out in many demanding application scenarios due to its unique comprehensive performance, becoming an ideal choice to replace traditional metals, plastics, and other ceramic materials.
Six core performance advantages of zirconia ceramic rings
Zirconia ceramics, especially yttrium stabilized zirconia, are made through advanced powder metallurgy and sintering processes and possess the following excellent properties:
- Extraordinary wear resistance: solving equipment wear and tear and lifespan issues
Performance description: The Rockwell hardness (HRA) of zirconia ceramics can reach 88-92, second only to diamond and silicon carbide, and far higher than most metals and plastics. This means that it can effectively resist material erosion, particle wear, and repeated friction.
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Extending equipment lifespan: Used as guide wheels, bushings, and bearings in systems that transport powders, particles, fibers, and other materials, it can greatly reduce the frequency of equipment downtime and replacement caused by wear and tear.
Protecting paired components: Its high hardness ensures that it is not easily worn out, and due to its low friction coefficient, it also provides protection for metal components such as shafts and rods that match it, achieving a “win-win” situation.
Application scenarios: Textile machinery wire guides, packaging machinery conveyor wheels, powder processing equipment liners, etc. - Extremely high mechanical strength and toughness: breaking the stereotype of ceramics being “fragile”
Performance description: One of the most striking features of zirconia ceramics is its “phase transition toughening” mechanism. When a material is subjected to external impact, its internal crystal structure undergoes a phase transition, absorbing energy and suppressing crack propagation. Its bending strength can reach 800-1200 MPa, even higher than some cast iron and alloy steels.
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Resistance to mechanical impact: able to withstand impacts during installation and accidental collisions during equipment operation, avoiding the disadvantage of being fragile like ordinary ceramics.
Capable of withstanding high loads: It can work stably as a structural component under certain pressure and load, such as used in mechanical bearings, pump valve components, etc.
Application scenarios: high load bearings, mechanical seal rings, cutting tools, smartphone backplates (such as some high-end models). - Excellent corrosion resistance: capable of withstanding harsh chemical environments
Performance description: Zirconia is an inert material with excellent resistance to most acids, bases, salts, and organic solvents, and does not undergo chemical reactions with them. Its chemical stability is much better than stainless steel.
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Eliminate chemical corrosion: In industries such as chemical, pharmaceutical, and electroplating, it can work in highly corrosive media for a long time without rusting, corroding, or contaminating the media like metals.
Ensure product purity: As it does not precipitate metal ions and does not contaminate the processed liquids or materials, it is particularly suitable for the food, pharmaceutical, and semiconductor industries that require extremely high purity.
Application scenarios: Mechanical seal rings for chemical pumps, reactor liners, medical analysis instrument components, food processing equipment. - Low friction coefficient and self-lubricating properties: achieving smooth operation, energy saving, and noise reduction
Performance description: The surface of zirconia ceramics is as smooth as a mirror, and after polishing, it can achieve a mirror level smoothness. When paired with metal or other materials, it has an extremely low coefficient of friction and a certain degree of self-lubricating properties.
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Reduce operating resistance: Reduce friction and energy consumption during equipment operation, which helps to save energy.
Prevent adhesion and biting: It is not easy to adhere or “bite” with materials (such as molten plastics, sticky foods) or other metal parts, and runs more smoothly.
Reduce noise: Low friction operation brings a quieter working environment.
Application scenarios: Oil free lubricated bearings, high-speed spindles, precision instrument guides. - Excellent thermal stability and low thermal conductivity: suitable for high temperature and insulation environments
Performance description: The melting point of zirconia ceramics is above 2700 ℃, and the long-term use temperature can reach over 1000 ℃. Meanwhile, it is also an excellent insulation material with a much lower thermal conductivity than metals.
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High temperature resistance without deformation: It can maintain its shape and strength in high temperature environments, without softening like plastics or creep like metals.
Effective insulation: It can be used as an ideal insulation component to protect adjacent sensitive components from high temperature effects.
Application scenarios: High temperature furnace accessories, thermocouple protection tubes, engine components, semiconductor heat treatment equipment. - Excellent electrical insulation: ensuring equipment safety and stability
Performance description: Zirconia ceramics have good electrical insulation properties at both room temperature and high temperature, with extremely high electrical resistivity.
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Reliable insulation: In situations where insulation is required, such as sensor housings, circuit boards, and high-voltage equipment components, stable and reliable insulation protection is provided to prevent leakage and short circuits.
Application scenarios: integrated circuit board testing probes, spark plugs, high-voltage insulators, insulation carriers for various electronic components.
Zirconia ceramic rings, with their unique combination of high wear resistance, high toughness, corrosion resistance, low friction, thermal stability, and electrical insulation, have successfully overcome the performance bottleneck of traditional materials. When your application scenario faces one or more challenges such as wear, corrosion, high temperature, insulation, or high-precision requirements, choosing zirconia ceramic rings can often bring twice the result with half the effort, making it a smart choice for achieving high performance, long life, and high reliability of equipment.
ブルーズ・セラミックス は、アルミナセラミックス、ジルコニアセラミックス、窒化ケイ素セラミックス、窒化アルミニウムセラミックス、炭化ケイ素セラミックス、炭化ホウ素セラミックス、バイオセラミックス、マシナブルセラミックスなど、高品質の石英ガラスを幅広く供給・販売しています。様々なセラミック製品のカスタマイズ要求にもお応えします。