According to the force nature, the metal spring can be divided into stretch inglisal spring, compression metal spring, twisting metal spring and curved metal spring;
Ordinary cylindrical metal spring because of the simple manufacture, and according to the load conditions to make a variety of types, simple structure, so the application is the most widely.
Metal spring manufacturing data should generally have high elastic limit, fatigue limit, impact toughness and good heat treatment performance, commonly used with carbon metal spring steel, alloy metal spring steel, rust-free metal spring steel and copper alloy, nickel alloy and rubber.
The manufacturing methods of metal springs are cold roll and hot roll. Metal spring wire diameter is less than 8 mm of the general cold roll method, greater than 8 mm with hot roll method. Some metal springs are also subjected to strong pressure or shot treatment after being made, which can improve the carrying capacity of the metal spring.
Compression metal spring is to accept the pressure of the spiral metal spring, the data section used is mostly circular, but also with a rectangular and multi-stranded steel roll of the metal spring is generally equivalent to the distance of the compressed metal spring shape is: cylindrical, conical, medium convex and medium concave and a small number of non-circular.
There is a certain gap between the circle and the ring of the compressed metal spring, and when the outer load is carried out, the metal spring shrinks and deforms, and stores the deformation energy. What is a torque metal spring? The torque spring uses the lever principle to twist or rotate the elastic data of the soft and toughness of the material, so that it has great mechanical energy.
Stretching metal spring is a spiral metal spring that accepts axial pull, and stretch editing metal spring is generally made of circular cross- material. When not under load, the ring and the ring of the stretch ingon spring are generally tight without a gap.