A small overview of the technology for production of polyethylene pipes

What equipment is needed for the production.

Most of the enterprises use the extrusion method.According to this technology, there is the following action plan.

bombarded with polyethylene pellets are fed into the hopper.Due to the high temperatures, they melt and then gradually fall into the extrusion head, which has a special annular gap with a predetermined size.All the mass that passes through the head, forms a preform which is subsequently placed in a vacuum bath.It is calibrated workpiece due to the reduced pressure.

Sometimes, a high pressure is applied as calibrations.Using this technology, the workpiece enters the hollow cylinder.Its internal diameter equal to the outer diameter of the pipe.Due to the high pressure feed air preform expands and presses it against the walls of the cylinder.

very important role played by cooling the workpiece, so the production of these products is required to provide several cooling baths.With their help, a pipe gradually cools.If it is cooled quickly, the product will lose quality.

To cut the pipe to the required dimensions of the IPA using a planetary saw.The length depends on the wishes of the customer and the diameter of the pipe.The finished product is marked according to the requirements of normative documents.

In general, the production of these products, human intervention is minimal.The operator only monitors the process, since the fully automated.The system monitors the quality, temperature, pressure, speed, weight pass through a matrix head.At the finish, the finished product and its quality visiting officials.

Now, it should be said about the complete set of equipment, which is being implemented with the help of the organization of production.A standard line consists of:

• equipment, which controls and monitors the process of production of polyethylene pipes;
• equipment designed for continuous supply of raw material in the hopper;
• extruder nozzle (matrix head);
• equipment performing calibration:
• device performing cooling the workpiece;
• pulling device;
• tools for marking;
• equipment for ultrasonic testing.

How to store and transport the HDPE pipe.

products made of polyethylene can be damaged by impact or other unexpected loads.To preserve the integrity of the HDPE pipe, follow the rules of storage and transportation.

If you are going for a long time to keep the tube, do not remove it from the original packaging.However, not many companies in Russia provide it, so:

• Keep pipes HDPE in warehouses.If this is not possible, put them in a pre-dusted and leveled surface and avoid direct sunlight;When laying
• bulk product, use ordinary wooden lining at a distance from each other in a 1 m. (Max).Coils are placed on pallets made of wood.
• Do not move the product portage.
• When unloading the car, do not drop the pipe.

HDPE pipe loading process and unloading can be done using technology or independently.If you decide to use the mechanized unloading, set soft plastic straps or ordinary towels so as not to damage the product.

1. Perform roll only laid logs, avoid hitting the vehicle side.
2. not perform loading and unloading operations at temperatures below -20 grams.