1. What is a constant force spring?

A constant force spring is a spring that can maintain constant elasticity within a corresponding stroke. This spring is mainly used for linear motion, and its rebound force is often used. Compared with ordinary tension springs,constant
force springs have a different internal structure.It consists of a helical metal plate that is curved inside, so that each coil of metal plate is tightly wound inside the metal plate. When the sheet metal is stretched or twisted,the internal stresses resist the load and create a constant spring force.


2. What are the requirements for wire selection of the flat coil springs?

The wire selection of the flat coil spring needs to consider its mechanical properties, physical and chemica properties and processing properties, such as carbon steel, stainless steel, piano steel, galvanized steel, etc.


3. What are the surface treatment  for the flat coil springs?

The surface treatment methods of the flat coil springs include electroplating, spraying, oxidation, etc., which can improve corrosion resistance,aesthetics and service life.


4. What are the applications of the flat coil springs?

The applications of the flat coil springs include door and window accessories, home appliances, auto parts,hydraulic equipment,mechanical parts,etc.


5. What are the applications of power springs?

The power springs are used in a variety of different mechanical devices including clocks, toys, door locks, watches,cameras, musical instruments,etc.



6. What is a variable force spring?

The variable force spring is a special spring whose elastic force can change with the change of displacement. This type of spring is often used in mechanical devices that require variable force action.


7.  What is the working principle of the variable force spring?

The working principle of the variable force spring is based on the nonlinear relationship between displacement and elastic force. Such springs are usually composed of multiple parts of different shapes, each part has different elastic
properties, so that the elastic force changes with the displacement.


8. What is a spiral spring?

Dimple springs are a common type of spring, also known as scroll springs or spiral torsion springs. It is a helical spring, which is characterized by a spring wire wound into a helical shape on the spring axis.


9.  What are the applications of spiral springs?

The spiral springs are widely used in various mechanical devices, such as automobiles, motorcycles, bicycles,clocks, photographic equipment, electrical equipment, etc. They can be used for functions such as cushioning,
vibration absorption, support and clamping.

10. What is a constant torque spring?

A constant torque spring is a mechanical component, usually consisting of a spring and a drum. When force is applied to the drum, the spring rotates about its axis and creates a constant torque.


11. What material is used for the constant torque spring?

Constant force torque springs are typically made using Type 301 stainless steel. This material has good corrosion resistance and strength.


12. What is the working principle of a constant force torque spring?

When the force is applied to the drum, the spring unwinds around the shaft. The storage tank creates a corresponding stress. When installed, the spring retracts when stressed, creating a constant torque.


13. What are the application scenarios of constant torque springs?

Constant Torque Springs are widely used in a variety of balancing applications such as roller blind rewinding, tool balancers, pendant light lifts, counter balance retrieval and return applications, drive motors, etc.


14. How to choose a suitable constant torque spring?

Selecting a suitable constant force torque spring needs to consider factors such as the use environment, required output power or torque, working stroke or speed, set length, and installation space.


15. What are the common faults and solutions of constant force torque springs?

Common failures of constant torque springs include spring failure, drum cracking, bearing wear, etc. Solutions include replacing parts, improving the use environment, and regular maintenance.


16. What are the advantages and disadvantages of constant torque springs?

The advantages of constant force torque springs include producing constant torque, high efficiency, compactness, suitable for balanced applications, etc. Disadvantages include susceptibility to the environment in which it is used, limited lifespan, and high maintenance requirements