Nitrogen springs are widely used in the cold stamping industry, mainly in the following aspects:
1. Role in the mold
As an elastic element in the mold, nitrogen springs have the characteristics of high performance, long life and stability, and are suitable for high-load and high-frequency working environments. It can replace traditional coil springs to provide pressure and rebound force. The main functions include:
Unloading: Provide elastic force for the unloading plate of the stamping die to eject the workpiece or waste from the die.
Pressing: Fix the workpiece during the stamping process to ensure processing accuracy and surface quality.
Ejection: Eject the stamped workpiece from the die cavity to ensure smooth production.
2. Improve mold performance
Pressure uniformity: The force provided by the nitrogen spring is more stable and uniform, which can effectively avoid mold deformation or workpiece defects caused by uneven force of traditional springs.
Adjustability: By adjusting the amount of nitrogen charged and discharged, the pressure of the spring can be easily adjusted to meet different process requirements.
Long life: Compared with traditional springs, nitrogen springs have a longer fatigue life and reduce the frequency of mold maintenance and replacement.
3. Improve production efficiency
Adapt to complex processes: For processes that require multi-station and multi-step stamping, nitrogen springs can provide stable and continuous elastic support.
Reduce downtime: High reliability and low maintenance requirements greatly reduce the downtime of the production line and improve overall efficiency.
4. Typical application scenarios
Automobile manufacturing: used for stamping and forming of body parts, such as doors, hoods and other large parts.
Home appliance industry: used for the production of thin sheet metal parts such as washing machines and refrigerator shells.
Electronics industry: used for stamping and forming of precision parts, such as mobile phone shells or electronic connectors.
5. Selection and maintenance
When selecting and using nitrogen springs in the cold stamping industry, pay attention to the following points:
Selection: According to the design and process requirements of the mold, select the appropriate elastic force range, stroke and size.
Installation: Correctly install and ensure that the working direction of the nitrogen spring is consistent with the force direction to avoid damage due to eccentric loading.
Maintenance: Regularly check the nitrogen pressure, the status of the seals, and whether there is a gas leak.
The excellent performance of nitrogen springs makes them an indispensable core component in cold stamping dies, playing a key role in improving die life and stamping quality.
