1, matching springs and springs based on automobiles, motorcycles, diesel engines and gasoline engines. This type of spring has valve spring, suspension spring, damping spring and clutch spring, etc., with a large amount, which accounts for about 50% of the spring production. At the same time, the technical level is also high, it can be said that the technical level of these springs is representative, they are mainly to the high fatigue life and high anti relaxation direction, thus reducing the quality.
2. Large springs and plate springs, which mainly include railway rolling stock, heavy truck and engineering machinery, are mainly formed by hot coil forming, which is an important aspect of the spring manufacturing industry. With the development of high-speed railway and the upgrading of the vehicle damping system, the technology of the thermoforming spring for vehicle suspension has been greatly improved. This kind of spring mainly develops to the high strength and high precision direction in order to stabilize the quality of the product.
3, the electronic appliance spring based on instrument and instrument, typical products such as motor brush spring, switch spring, camera and camera spring, and computer accessories spring, instrument and instrument fittings spring and so on. The spring and special-shaped springs in such springs account for a large proportion. Different products have different material and technical requirements. This type of spring develops mainly in the direction of high strength and miniaturization.
4, the hardware springs, such as mattress, sofa, door hinge, toy, lighter and so on, have large demand for this type of spring, such as mattress, sofa, door hinge, toy, lighter and so on. But the technical content is not high, which has improved the development opportunity for small spring enterprises. This kind of spring is mainly made to the direction of miniaturization.