Whether stainless steel spring is in use, or in consumption, need to think about its service life, so how to improve the service life of stainless steel spring? Let's talk about that.
Deformation thermal treatment. High temperature deformation hot treatment is quenched immediately after deformation in a stable austenite state, or can be combined with forging or hot rolling, that is, quenched immediately after hot forming. Rapid tempering after stopping rapid tempering can greatly improve its strength and fatigue life.
Isothermal quenching. For springs with small diameter or enough hardenability, isothermal quenching can be used, which can not only reduce the change of dead center, but also further improve the strength and toughness of springs. Elastic limit is increased by tempering after isothermal quenching at the same temperature as isothermal quenching.
Low temperature carbonitriding. For stainless steel springs, the combination of tempering and low temperature carbonitriding （soft nitriding） can significantly improve the fatigue life and corrosion resistance of springs.
Handle spring relaxation. Spring for a long time under the action of external force work, due to stress relaxation, will attack fine eternal （plastic） deformation, especially in high temperature spring work, stress relaxation phenomenon is more serious at high temperature, and the accuracy of the spring is reduced, which is usually accurate. Springs are not allowed. Therefore, such springs should be relaxed after quenching and tempering.
Shot peening. Springs require high appearance quality requirements. If the appearance of the spring is radiated with a small steel shot, this shot peening treatment can not only improve the appearance quality of the spring, but also improve the appearance strength, so that the appearance is in a state of compressive stress, and effectively improve the fatigue strength and service life of the spring.
If the consumption of spring manufacturers use life is very short, it is clear that the quality of the spring is very poor, so that spring manufacturers in the process of consumption, to think about this point, is also an account of the customer. For more information, visit www.sdzbthc.com.