The characteristics of the friction plate are determined by the physical properties of the friction material
The characteristics of the friction plate are basically determined by the physical properties of the friction material, and the use of fillers in the friction material is one of the reasons. Different fillers can be used to obtain different product properties.
There are many physical and mechanical properties of friction material products, such as surface hardness, grinding dust adhesion, density, noise, dual wear, compressibility, expansion, internal shear, vibration resistance, weather resistance, oil absorption, water absorption, impact strength, elasticity Modulus, compressive strength, porosity, flexural strength and maximum strain, etc. In addition to the main requirements for the product, the impact on the performance of other aspects should also be considered in the formulation design of the friction material.
For example, a friction material product that requires particularly good thermal conductivity must use a filler with good thermal conductivity. All kinds of fillers with good thermal conductivity are still metal materials, and these materials have good thermal conductivity. Therefore, using metal materials as fillers in friction materials can significantly improve the thermal conductivity of products; design a surface For friction material products with lower hardness requirements, a filler with lower hardness such as vermiculite can be used to make friction material products with surface hardness meeting the design requirements. If a friction material product with lower density is designed, then To choose a type of filler with lower density, in order to achieve the purpose of lower density of friction material products.
However, while designing the performance of various products with special requirements, we must study and pay attention to the comprehensive performance of the products. These examples show that formula design should be properly and reasonably selected according to different requirements of friction material products and various performance characteristics of fillers. Of course, the choice of fillers is not only one kind, and it is often necessary to choose several kinds of fillers to get the most ideal design results. In order to meet the physical and mechanical performance requirements of friction material products, not only the use of various suitable fillers, but also reasonable processes, suitable equipment and appropriate operations are also decisive factors.
