Compression spring is very common, not only the representative of the spring, at the same time, compression spring material, size and processing technology has different requirements, so the selection is very important. So how do you choose a compression spring? It is necessary to master certain skills. Let's find out.

1, ordinary compression spring manufacturing materials

Common compression spring materials include carbon spring steel wire, piano steel wire, stainless steel spring steel wire, carbon spring steel wire. It adopts high quality carbon steel wire material, which is hardened by cold drawing through lead isothermal quenching. It has low plasticity and high elasticity. Strong resistance to strain, mainly used for mattress, car seat cushion, mechanical manufacturing, stationery power tools, electrical equipment, etc.

Piano wire is made from piano wire board, which is made by pulling hard at room temperature. It has high performance. Elastic limit and strength limit are small spring materials used in large quantities for relief valves. Stainless steel compression spring is a comprehensive performance of the spring, after quenching and tempering of chemical machinery and electronic equipment in the working environment with high temperature resistance, corrosion resistance and non-magnetic characteristics.

2. Direction of yellow ring of pressing spring

The coil of a compression spring is like a threaded screw. It has left rotation and right rotation. In application, if one compression spring is to be installed in another, it must be ensured that the two compression springs are chosen in opposite directions. If the bolt is to be bolted into the compression spring, it must be ensured that the bolt is in the same direction as the rotation of the compression spring. When choosing bolt, we must consider the actual situation, otherwise we can't use it.

3. Compression spring shape classification

The shape of compression spring is divided into cylindrical, conical, concave, convex and rectangular compression spring. Cylindrical pressure springs are used extensively, but other pressure springs of different shapes are also used in different fields. Conical spring pressure is commonly used in life, for example, the fixed cells, form loop connection is negative, the concave pressure spring can bear larger load, with vibration absorption and is mainly used to cushion and mattress, both ends of a small spring of spring than cylindrical and conical spring bear a larger load, and obtain larger deformation, but the design is difficult, production problems; The rectangle press spring adopts the square wire, its bearing capacity is big, the service life is longer than the circle. It is widely used in stamping die, metal die, precision mechanical equipment, automobile and other fields.