PVC PE PP single wall corrugated pipe production line

For single wall corrugated pipe, normally there is PVC PE and PP single wall corrugated pipe. Single-wall PE corrugated pipe is a new type of lightweight pipe made of high-density polyethylene as raw material, which has the characteristics of high weight resistance and good toughness. PVC single-wall corrugated pipes are mostly small-diameter pipes with thin walls and low strength requirements that need to be freely bent, such as threading pipes, water drainage pipes, exhaust pipes, etc. PP corrugated pipe has good flexibility, glossy surface, chemical corrosion resistance, acid and alkali resistance. Application areas: PP corrugated pipes, automotive wiring harness corrugated pipes, flame retardant corrugated pipes, wire sheath corrugated pipes are mainly used for automobile wiring, and can also be used in machine tools, automated instruments, motors, and protect cables and wires from external force wear and tear. insulation.

The inner diameter or outer diameter of the single-wall corrugated pipe is the basic structural parameter, and other such as wall thickness, wave distance, wave thickness, etc. are determined based on the inner diameter or outer diameter. The corrugation height can be represented by the wave depth coefficient K, which is the ratio of the outer diameter to the inner diameter of the corrugated pipe. The larger the value, the higher the corrugation height. The waveform of the bellows can be divided into spiral, U-shaped, C-shaped, S-shaped, V-shaped and Ω-shaped according to the geometry after being cut along the axial direction. The waveform has a certain influence on the stiffness and strength of the tube.

Main process of PVC PE PP single wall corrugated pipe production line:  The rotation speed of the single-screw extruder is generally 30~60r/min, and the head pressure is controlled at about 36~54MPa. The material should be fully plasticized, and the compressed air should be used to freely inflate into bubbles. After the extrusion is stable, insert the corrugated forming device and the extrusion die to ensure that the center lines of the two are aligned. The extrusion die inserted into the forming die should be greater than the distance of a pair of forming modules to ensure that the upper and lower modules are fully closed before forming. product. The ring sequence grooves of the upper and lower forming dies must be aligned and should not be misaligned. The traction speed is generally controlled at about 6~10m/min. The inflation pressure is based on the principle that the annular groove of the product is completely blown, generally 0.15MPa. The temperature of the mold is controlled at about 45~60℃, so as to facilitate the basic shaping of the product before the mold is opened, and avoid the elongation of the corrugated pitch during coiling.

The PVC PE PP single wall corrugated pipe production line mainly includes:  single screw extruder+dryer+materials feeding system+molding+forming machine+winding machine.

Main features of PVC PE PP single wall corrugated pipe production line:

1. Use SIMENS motors,ABB frequency inverter and SCHNEIDER contactor.
2. Forming machine(with large cooling area, production speed will be faster compared with other company’s machine) with good performance and easy to operate.(clients can choose normal type or high speed type), you can choose automatic 0r manual adjustment for height.
3. Quiet production and save electricity.
4. No need change complete die head, just change one part, no need separate die and mandrel.
5. Automatic adjustment for the speed of winding. (can choose single station or double station for winding).

Main models and parameters of PVC PE PP single wall corrugated pipe production line: