Stamping parts factory to help you answer: the role of heat treatment of metal shrapnel

Hardware shrapnel is used to control the movement of parts, ease impact or vibration, store energy, measure the size of force, etc. It is widely used in machines and instruments. The types of hardware shrapnel are complex and diverse. According to the shape, there are mainly spiral hardware shrapnel. , Scroll metal shrapnel, plate metal shrapnel, etc. Spiral hardware shrapnel is a twisted hardware shrapnel, and the hardware shrapnel that receives torsion deformation, the working part is also tightly wound into a spiral shape. The end structure of the torsion metal shrapnel is processed into torsion arms of various shapes, not hooks. Torsion springs are often used in balancing mechanisms in machinery, and are widely used in industrial production such as automobiles, machine tools, and electrical appliances. The materials used in the production of hardware shrapnel are generally: stainless steel, copper, aluminum foil, carbon steel, manganese, etc., which must be heat treated during production. But why heat treatment? What is the effect of heat treatment? The reason for the heat treatment of the metal shrapnel: 1. The storage and output power can be used for other movements, such as the clock. 2. Control mechanical actions, such as incineration control valve, clutch hardware shrapnel. 3. Absorb the energy of vibration and impact; such as cushioning springs, coupling damping springs under the car compartment. 4. As an element of strength; such as the measured strength of metal shrapnel. The heat treatment of metal shrapnel can improve the hardness, wear resistance and contact fatigue strength of the surface of the stamping parts, and improve the strength and toughness of the core. The heat treatment of metal shrapnel can be divided into surface quenching and tempering heat treatment and chemical heat treatment. The surface quenching and tempering heat treatment is usually carried out by induction heating or flame heating. The chemical heat treatment is to make the surface of the stamping part infiltrate the atoms of one or several chemical elements, thereby changing the chemical composition, structure and performance of the surface of the stamping part. The main technical parameters are surface hardness, local hardness and effective hardened layer depth. Therefore, the metal shrapnel should be heat treated. Recommended article: Analysis of surface treatment methods and advantages and disadvantages of metal stamping parts Previous: Summary of manufacturing characteristics of cold stamping dies