1. High intensity

In order to improve the fatigue damage and anti relaxation function of the inclined coil tension spring, the inclined coil tension spring material should have high yield strength and elastic limit, with a high yield strength ratio. The elastic limit of this material is directly proportional to its yield strength, so the planning and production of inclined coil tension springs always hope that this material has high yield strength.

2. Outstanding plasticity and durability

In the production process of inclined coil tension springs, the data needs to undergo varying degrees of processing deformation, so the data needs to have a certain degree of plasticity. For example, when the bending radius is small, the inclined coil tension spring material should not exhibit defects such as cracks or folds during processing or stamping bending forming. At the same time, when the inclined coil tension spring is subjected to impact loads or variable loads, the data should have outstanding resistance, which is of great benefit to improving the service life of the inclined coil tension spring.

3. Excellent appearance and fatigue function

When working with inclined coil tension springs, the external stress is high, and fatigue failure often begins from the surface of the steel wire. The inclined ring tension springs used in important occasions, such as valve inclined ring tension springs, suspension inclined ring tension springs, etc., have a cycle life of hundreds of thousands, thousands or more, which puts high demands on the fatigue function of the data. There are many factors that affect the fatigue function of data, such as chemical composition, hardness, purity of steel, appearance quality, and metallographic structure, especially the appearance quality of data.

4. Strict standards

Many inclined coil tension springs have high requirements for load accuracy. For example, the load error of valve inclined coil tension springs should not exceed 5% ≤ 6% of the specified load. Taking the steel wire rope tension compression ring tension spring as an example, when the diameter error of the steel wire is 1%, the error of the load is about 4%. Therefore, strict measurement accuracy is also important for ensuring the quality of inclined coil tension springs.

5. Outstanding similarity

The requirement for data uniformity refers to the uniformity and stability of indicators such as chemical composition, mechanical function, and scale error of the data. If the functions of the data are different, it will bring great difficulties to the production of inclined coil tension springs, resulting in the dispersion of product geometric scale, hardness, load and other parameters. Severe non-uniformity may even lead to product waste.