The performance of small rollers and the mechanical properties of rollers include: strength, plasticity, hardness, impact toughness, resistance to multiple impacts, etc. strength. Strength refers to the ability of metal materials to resist eternal deformation and fracture under the action of external forces. Because the action of load has tension, compression, bending, shear and other situations, the strength is also divided into tensile strength, compressive strength, flexural strength, and shear strength. There is often a positive connection between the various strengths, and the tensile strength is usually used as the basic strength index as usual.
Plasticity. Plasticity refers to the ability of a metal material to deform plastically without breaking under load. hardness. Hardness is an indicator to measure the degree of softness and hardness of metal materials. At present, the hardness measurement method commonly used in production is the indentation hardness method. It uses an indenter with a certain geometric shape to press the metal under test under a certain load. The appearance of the material is determined according to the degree of indentation. Commonly used methods are Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).
dejected. The strength, plasticity, and hardness discussed above are all mechanical properties of metals under static load. In reality, many machine parts are operated under cyclic load, and under such conditions, the parts will be frustrated.
Impact toughness. The load acting on the machine parts at a large speed is called an impact load, and the metal resists damage under the impact load.
