Is the number of rapid door spring extensions the service life of the rapid door?

　　The spring is the core part of the fast door power transmission system. In the daily use of the fast door, the spring must withstand the repeated high-frequency stretching test. When we buy fast doors, we often see many fast door manufacturers promoting their products. When it comes to springs, we often see data such as 270,000 times, 300,000 times, and 400,000 times. It reflects that its own spring has good quality and has a very good service life. In fact, even after a third-party testing experiment, it cannot represent the number of spring extensions in actual application.

　　In the production process of the spring, under the same material, the spring needs to undergo two processes of cold forming and hot forming. In these two processes, the temperature control needs to be strictly controlled to ensure the service life of the spring. At the same time, the ambient temperature of the spring application is different, and the processing temperature must also be different.

　　For example, in the northern part of the country, because the ambient temperature is recorded on an annual cycle, the maximum temperature difference between summer and winter will be around 40 degrees Celsius, so the spring used for installing the quick door in the north, the temperature difference between cold forming and hot forming during the manufacturing process needs to be larger, so It can ensure that the spring can maintain a good running state under different ambient temperatures. In the southern region, the temperature difference range is small, but the environmental humidity is large. In order to increase the service life of the fast door, the spring of good material is often selected, and the spring is regularly lubricated and oil-sealed to prevent the spring from being seriously oxidized by the environment.

　　Of course, the production process of the quick door, the balance of the spring force and the balance of the door body installation are also the main factors that affect the use of the spring. When we buy the quick door product, we cannot unilaterally listen to the unilateral test report of the quick door manufacturer. To judge the quality of the fast door.