The power spring is made of stainless steel strip. A spring box is required to limit its outer diameter. The spring center is connected with the shaft. When an external force is applied to make the shaft rotate relative to the spring, the spring will roll on the shaft center and store the torque. When the external force disappears, the spring will produce the torque on the shaft or spring box.
The advantage of power spring is that it can be divided into natural power spring and pre force power spring according to its relaxed shape. In contrast, the preloaded power spring can store 25% to 55% more torque and provide more effective turns. Power springs are mainly used in products such as clockwork toys, timers and automatic rewinding devices (such as power cord, dog puller, pipe winder and automobile safety belt)
It is often seen that the scroll spring purchased will break soon after it is applied to the product. Once the scroll spring breaks, its service life will end. If spring manufacturers choose general materials and immature production technology, the service life of products will be greatly reduced. There are many factors leading to its rupture, mainly including the following factors: wrong scheme design, shortcomings of raw materials, poor production and processing and so on. The quality of power spring determines the quality of products and user experience. Take the dog leasher with scroll spring as an example. With the increasing improvement of living standards, raising pets has become a fashion. In the process of raising a dog, walking the dog is essential. In order to facilitate walking the dog, the dog walker came into being. The dog walker produced with improper power spring is easy to break, resulting in the rope on the dog puller stuck, the rope can not be retracted, the rope is broken, and the locking key fails. Such a dog leasher will certainly not get a good user experience in quality, and users will not like it.
Qianye will select spring materials suitable for products through product design and produce and process spring materials. In production, we will also carry out deep processing technology. The mechanical equipment used in the production of springs is also different from those on the market. All mechanical equipment of Qianye are independently developed (with patents). Different equipment can lead to different process accuracy of the produced springs.
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![[Qianye Precision]Advantages of constant force spring](https://wp-static-chuangli.oss-us-west-1.aliyuncs.com/qianyespring/uploads/2022/09/f3ccdd27d2000e3f9255a7e3e2c48800-64.jpg "[Qianye Precision]Advantages of constant force spring")
