Metal separator manufacturers introduce the common mechanical properties of metals
Strength refers to the ability of metal materials to resist damage (excessive plastic deformation or fracture) under static load. Since the load acts in the form of tension, compression, bending, shearing, etc., the strength is also divided into tensile strength, compressive strength, bending strength, and shear strength. There is often a certain relationship between various strengths, and tensile strength is generally used as the most basic strength index in use.
Plasticity refers to the ability of metal materials to produce plastic deformation (permanent deformation) without damage under load.
Hardness is a measure of the hardness of metal materials. At present, the most commonly used method for measuring hardness in production is the indentation hardness method, which uses an indenter of a certain geometric shape to press into the surface of the metal material to be tested under a certain load, and the hardness value is determined according to the degree of indentation.
Commonly used methods include Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).
The aforementioned strength, plasticity, and hardness are all the mechanical performance indicators of metal under static load. In fact, many machine parts work under cyclic loads, and under this condition the parts will fatigue.
5. Impact toughness
The load acting on the machine at a very high speed is called impact load, and the ability of metal to resist damage under the action of impact load is called impact toughness.