Alumina hollow balls and alumina керамические шарики are both made from alumina (aluminium oxide, Al2O3), a ceramic material known for its hardness, resistance to wear and chemical attack, and high-temperature stability. The primary differences between them stem from their structure:
- Structure and Density:
- Полые шарики из глинозема: Как следует из названия, these balls are hollow, meaning they have a lower density compared to solid balls. This makes them lighter, which can be an advantage in certain applications.
- Керамические шарики из глинозема: These are solid balls made from alumina ceramic. Как результат, they have a higher density and are heavier than hollow balls.
- Thermal and Acoustic Insulation:
- Полые шарики из глинозема: The hollow structure provides excellent thermal and acoustic insulation properties, making these balls ideal for applications where these factors are important.
- Керамические шарики из глинозема: While they still exhibit good thermal resistance due to the properties of alumina, solid balls might not provide the same level of thermal or acoustic insulation as hollow balls.
- Приложения:
- Полые шарики из глинозема: They are often used in high-temperature insulating refractory materials, high-temperature kiln furniture, and as a filler in high-temperature refractory castable. Other applications include lightweight refractory aggregates in aluminum factories and steel plants. The hollow structure also provides buoyancy, which can be useful in certain applications.
- Керамические шарики из глинозема: They are commonly used in a wide variety of applications that require wear and chemical resistance and high-temperature stability. These can include being used as grinding media in ball mills, подшипники, клапаны, and other mechanical and industrial applications.
В заключение, while both alumina hollow balls and alumina ceramic balls share the same base material, their differing structures lead to different physical properties and, as a result, different potential uses.
