Traditional Culture Encyclopedia - Weather forecast - What is the steel hoop of water supply PE pipe-Yuhong Industry
What is the steel hoop of water supply PE pipe-Yuhong Industry
For example, de 1 10*0.8 MPa PE pipe.
Ring stiffness refers to the ability of pipes made of polymer composite materials to resist external pressure load (such as pe water supply pipes, PVC-U water supply pipes, steel belt PE pipes, etc.). ), called hoop bending stiffness, is a method to measure the ability of pipeline to resist hoop deformation. Test method or calculation method can be used.
The ring ratio of PE water supply pipe actually refers to the external pressure index. The load of pressure pipeline includes internal pressure and external pressure. The stress caused by internal pressure is usually the main factor that causes the damage of PE pipeline. The failure forms are excessive deformation and fracture caused by tensile stress on the pipe wall (plastic pipes are usually caused by creep). This design is generally based on internal pressure load, material selection and structural data (such as wall thickness, etc.). ) in the design calculation, and then consider the external pressure load for design verification, modify the structural data when necessary. The ring stiffness of PE pipe is actually not constant.
For example, PE pipes of DE1/KLOC-0 * 0.8 MPa and de3 15*0.8 MPa are also 8 kg pressure pipes, but it does not mean that they will be 8sn, that is, the ring stiffness of 8 N.. The larger the pipe diameter, the lower the ring stiffness. In another case, the change of temperature will also be affected. When the weather temperature decreases, the hardness of PE pipe increases. The stiffness of that natural re will also increase.
- Previous article:Along the Way ¡ª¡ª Lu Ge's miyaluo Prose
- Next article:What's the best thing to wear to watch a music festival?
- Related articles
- Precautions for medication of infantile eczema
- Hainan to Xinmatai Cruise Guide Cruise to Hainan
- The following picture shows the weather situation in North America on 20 14. Look at the picture and complete the following questions. Question 1: The month that shows the weather is most likely A.
- This paper tries to analyze the influence of physical exercise on health in foggy days or early morning before sunrise from the perspective of air quality.
- Seven-day weather forecast in Linqu
- About the weather characteristics of Shanghai
- Do you have to ask about the weather or something?
- What's the temperature in Yinchuan all year round?
- There are five color levels for weather warning.
- Make sentences with heat waves.