Double wall corrugated pipe production line
Double-wall corrugated pipe equipment , high-density polyethylene (HDPE) double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. It was first developed in Germany in the early 1980s. After more than 20 years of development and improvement, it has developed from a single variety to a complete product line. At present, it is very mature in production technology and use technology. Because of its excellent performance and relative economic cost, it has been greatly promoted and applied in developed countries such as Europe and the United States. In China, the promotion and application of HDPE double-wall corrugated pipes are in an upward trend, and all technical indicators have reached the standards for use.
To produce high-quality double-wall corrugated pipes, the corrugated forming system plays a vital role, and all key technologies for producing double-wall corrugated pipes are also concentrated here. The corrugated forming system can be divided into three parts: corrugated forming machine, corrugated forming module, extrusion die and cooling setting.
First look at the corrugated forming machine. The role of the corrugated forming machine is to make the corrugated forming module installed on it operate continuously and stably, and provide the vacuuming function and cooling function necessary for corrugated forming. In order to make the corrugated molding module run continuously and stably on the molding, the design of the module running track of the molding machine is particularly important. The design of the module running track of the corrugating machine can greatly improve the service life of the machine. The track design should be low friction. The smaller the friction, the lower the wear and the longer the life. In the production of double-wall corrugated pipes, the corrugated forming module also plays a vital role. One is that the corrugated forming module directly determines the wave shape, and the other is that the manufacturing process of the corrugated forming module directly affects the quality of the pipe. The die for producing double-wall corrugated pipe is very different from the die for producing solid-wall pipe due to process reasons. In the production of corrugated pipes, on the one hand, the die head is required to have a double flow channel structure, and on the other hand, the material of the die head is relatively high. The ideal material should be the same material as the barrel and screw of the extruder-38CrMoALA After nitriding, it has high accuracy, high strength, good stability, and although the price is high, it is reliable to use and can ensure the product quality of the pipe.