The production process of PE polyethylene pipe fittings is a complex and delicate process, which mainly includes the following key steps:
1. Raw material preparation
First, high-quality polyethylene (PE) resin needs to be selected as raw material. These raw materials need to be strictly screened and formulated to ensure that their quality and composition meet production requirements. At the same time, additives such as masterbatch, plasticizer, stabilizer, etc. can also be added as needed to improve the performance and stability of the pipe.
2. Batching and mixing
The selected raw materials are accurately measured in a certain proportion and mixed and dispersed through efficient mixing equipment. This process is designed to ensure that the various raw materials are fully mixed and uniform, providing a stable raw material basis for subsequent processes.
3. Melt extrusion
The uniformly mixed raw materials are fed into the extruder and heated and melted. The high temperature and high pressure environment inside the extruder melts the raw materials into a melt, and through the rotation of the screw and the heating of the shell, the melt is pressurized and extruded in the extruder cavity. This step is the key to forming the shape of the pipe.
4. Mold molding
After the melt is extruded, it enters the mold. The shape and size of the mold determine the final shape and size of the pipe. By adjusting the mold temperature and the process parameters of the extruder, it can be ensured that the melt is uniformly formed in the mold and quickly fixed.
5. Cooling and solidification
After the extruded pipe comes out of the mold, it needs to be cooled and solidified immediately. Usually, a cooling water tank is used for rapid cooling, so that the pipe solidifies quickly and maintains the required shape and performance.
6. Cutting and trimming
The cooled and solidified pipe is cut according to the required length and trimmed by a trimmer to make the two ends of the pipe have a flat and smooth surface.
7. Inspection and quality control
The quality of the produced PE polyethylene pipe fittings is inspected, including appearance inspection, dimensional measurement, and physical properties such as tensile strength. Unqualified products are eliminated to ensure that the quality of the product meets the standard requirements.
8. Packaging and storage
Qualified PE polyethylene pipe fittings are packaged, generally in roll or tray packaging. Then, the packaged pipes are stored and marked for easy sale and use.
The above steps together constitute the complete production process of PE polyethylene pipe fittings. Each link is crucial and needs to be strictly controlled to ensure the quality and performance of the final product.
