Alumina ceramic processing parts
Aluminum oxide ceramics, silicon nitride ceramics, zirconia ceramics
As a kind of wear-resistant material, alumina ceramic processing parts are widely used in machinery, electronics, petroleum, chemical industry, aerospace and textile industries due to their white quality, corrosion resistance and good stability. Alumina industrial ceramic parts are What are the advantages and disadvantages: Alumina ceramic accessories have low dielectric constant, small dielectric loss, high dielectric strength, high volume resistivity, good bending strength, high stability, high compressive strength, and good thermal shock denaturation.
Advantages: high hardness, excellent wear resistance, corrosion resistance and high temperature resistance, good self-lubrication, and not easy to scale.
Alumina industrial ceramic parts have high hardness, high strength, low expansion coefficient, insulation, wear resistance, and corrosion resistance. They are used in machinery manufacturing, aerospace, precision instruments, petrochemicals, new light sources, textile machinery, electrical appliances, and refrigeration equipment. , electric heating instrument, instrument, chemical industry, communication, communication and other industries.
Disadvantages: Generally, the elastic modulus is quite large, the hardness is high, the brittleness is large, and the crack sensitivity is strong. Therefore, the difficulty of machining is mainly reflected in the processing hardness and processing brittleness.
Usually, the microstructure of alumina ceramics is equiaxed grains, and it is a polycrystalline structure composed of ionic bonds or covalent bonds, so the fracture toughness is low under the action of external load.
Stress will cause fine cracks on the ceramic surface, and the cracks will expand rapidly to cause brittle fracture. Therefore, during the processing and cutting of alumina industrial ceramic parts, cracking often occurs, that is, cracks appear on the ceramic surface small gap.
Alumina ceramic parts have good electrical conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics are ceramics with a wide range of uses. Due to its superior performance, it has been more and more widely used in modern society to meet the needs of daily use and special performance.