The use time of steel belt bellows is a topic that everyone is more concerned about, in general, the rated theoretical use time of qualified pipes is about 50 years, but it should be determined according to the specific use and use environment.
First of all, the selection of raw materials and the processing technology of the structure make it have a standard of about 50 years of service time.
1. HDPE high-density polyethylene is used as a raw material, which will not be polluted and corroded by domestic sewage and industrial wastewater, and will not be decomposed and corroded by microorganisms and decaying substances in the soil. This allows it to be used for a long time.
2. Good corrugated outer wall structure, integrating the principle of bionic shell bridge, "U" design makes it impact resistance, strong displacement performance, and strong adaptabilityThe inner wall of the composite steel strip makes it have high ring stiffness and compressive resistance. These two points greatly enhance its survival rate in complex environments and prolong its use time.
3. In addition, the pipe is usually black, and many of them are processed with anti-ultraviolet rays, so that it can still work normally in the face of wind and sun.
Secondly, the length of its use time is also closely related to the working environment, the constant load pressure resistance of each pipe is good, if it is often in an overload state, it will also seriously damage its use time. When working, it is subject to displacement, pressure, temperature, working medium, vibration conditions, frequency range, impact conditions and other factors, the influence of these factors is collectively referred to as environmental stress, if the stress impact can be reduced by half, it can extend the use time of 5-10 years. For example, if the impact strength exceeds the rated 50,000 times, the pipe will be damaged, of course, if it exceeds too much at one time, it will be directly damaged.
Simple examples: factory discharge, almost no damage to the road buried, severe damage to the road and buildings, greatly reduced service time, this is the uncertainty of the use time caused by the influence of the external environment.
Finally, the key factor that affects how long and how long it is used is the human factor, and if it is destroyed by man, it is difficult to say.