The application of stainless steel shrapnel is a kind of elastic element widely used in mechanical and electronic industries. When loaded, stainless steel shrapnel can produce large elastic deformation and convert mechanical work or kinetic energy into deformation energy. After unloading, the deformation of shrapnel disappears and returns to its original state, and the deformation energy is converted into mechanical work or kinetic energy. Stainless steel shrapnel is complex and diverse. It can be divided into spiral shrapnel, scroll shrapnel and plate shrapnel.
Stainless steel shrapnel is generally used for
1. Control mechanical movement, such as valve shrapnel in internal combustion engine, control spring in clutch, etc.
2. Absorb the vibration and impact energy, such as the buffer spring piece under the car and train carriage, the vibration absorbing spring piece in the coupling, etc.
3. Store and output energy as power, such as the shrapnel of clocks and watches, the shrapnel of guns, etc.
4. It can be used as a force measuring element, such as a force measuring device, shrapnel in the shrapnel scale, etc.
The ratio of load to deformation of stainless steel shrapnel is called shrapnel stiffness. The greater the stiffness, the harder the shrapnel. According to the mechanical properties, the shrapnel can be divided into tension, compression, torsion and bending. According to the shape, it can be divided into disc-shaped, annular, plate, spiral, truncated cone scroll and torsion bar. The common cylindrical shrapnel is widely used because of its simple manufacture and simple structure.
Generally speaking, the manufacturing data of stainless steel shrapnel should have high elastic limit, fatigue limit, impact toughness and good heat treatment performance. The commonly used materials include alloy spring steel, carbon spring steel, stainless steel, copper alloy, nickel alloy and rubber. The manufacturing methods of shrapnel include cold coiling and hot coiling. The diameter of shrapnel wire less than 8 mm is generally cold rolled, and that larger than 8 mm is hot rolled. Some stainless steel shrapnel should be pressed or shot peened after being made, which can improve the bearing capacity of the shrapnel.