Structural ceramics have excellent mechanical, thermal and chemical properties such as high temperature resistance, erosion resistance, corrosion resistance, high hardness, high strength, and low creep rate, and are commonly used in various structures. Advanced ceramics for components.
1. Application of engineering ceramic structural parts:
Structural ceramics have excellent strength, hardness, insulation, thermal conductivity, high temperature resistance, oxidation resistance, corrosion resistance, wear resistance, high temperature strength and other characteristics. Therefore, they exhibit high performance under very harsh environments or engineering application conditions. Its stability and excellent mechanical properties have attracted much attention in the materials industry, and its scope of use is also expanding day by day. The global and domestic industries have increasingly stringent requirements for high-precision, high-wear resistance, and high-reliability mechanical components or electronic components. Therefore, the demand for ceramic products has attracted considerable attention, and their market growth rate is also considerable.
2. Processing scope of engineering ceramic structural parts:
Ceramic bushings, ceramic bushings, ceramic rings, ceramic flanges, ceramic pump valves, ceramic tubes, ceramic nozzles, ceramic dispensing valves, food medical ceramics, photovoltaic ceramic parts Wait, the size ranges from 3mm to 600mm, involving more than 2,700 specifications and more than 5,700 varieties,
3. Performance characteristics of engineering ceramic structural parts:
(1) Mechanical properties: Ceramic materials are the materials with the best stiffness and highest hardness among engineering materials, and their hardness is mostly above 1500HV. Ceramics have high compressive strength, but low tensile strength, and poor plasticity and toughness.
(2) Thermal characteristics: Ceramic materials generally have high melting points (mostly above 2000°C) and have excellent chemical stability at high temperatures; the thermal conductivity of ceramics Lower than metal materials, ceramics are also good thermal insulation materials. At the same time, the linear expansion coefficient of ceramics is lower than that of metals. When the temperature changes, ceramics have good dimensional stability.
(3) Electrical properties: Most ceramics have good electrical insulation,
(4) Chemical properties: Ceramic materials are not easily oxidized at high temperatures and have good corrosion resistance against acids, alkalis, and salts.
(5) Optical properties: Ceramic materials also have unique optical properties.
