PE is polyethylene plastic, a relatively basic type of plastic. Plastic bags, cling films, etc. are all made of PE, while HDPE is a highly crystalline and non-polar thermoplastic resin. The original appearance of HDPE is milky white, with a certain degree of semi transparency in the thin section. PE has excellent resistance to most household and industrial chemicals.
Due to its light weight and ease of handling and paving, PE pipes are a popular choice among construction workers.
The connection of PE pipes is generally made by hot melt butt welding, which is relatively simple to operate. However, even so, various problems often occur. Today, we will introduce the problem of weld joint pressure leakage. The following are several common reasons for weld joint pressure leakage of PE pipes:
1. Use pipes or fittings from unqualified manufacturers
2. The welding does not match the PE pipe, and the welding parameters have not been tested
3. Welding parameter setting error
4. Use the hot plate red light before it cools down
5. The conversion process exceeds the values specified in the parameter table
6. The end face of the PE pipe is contaminated after milling
6. Poor clamping of pipes, with a wide distance between the two pipe ends, resulting in insufficient rack travel
7. Shutdown and disassembly before the cooling process is complete
The above are several common reasons for the leakage of PE pipe welding joints. If you encounter similar problems during the operation of PE pipes, you can find solutions based on the above problems. To ensure the normal operation of PE pipes and the professional selection and installation from the manufacturer, it is necessary to operate according to the specifications.