The Process Of PVC Pipe Extrusion: Science Meets Productivity!

From scientific theories to the technological application, the PVC extrusion process is now a reality!

No doubt, there have been lots of technological advances in the manufacturing sector. This phenomenon is significant in the PVC manufacturing industries where products such as pipes, as well as other shapes make up a bulk of the entire products.

In this post today we will briefly explain the extrusion method, its process, and application.

What does extrusion mean?

Extrusion is a continuous process, in which the finished products are obtained by forcing molten material through a forming tool (spinneret, an extrusion head, and orifice).

The material used in the extrusion process is characterized by a high level of viscosity, and the products are obtained with a cross-section of the desired shape, such as PVC pipes.

Extrusion, in other words, can be considered as a complex physical-chemical process that takes place under the influence of mechanical forces, high temperature, and humidity.

The process of extrusion

The processed raw materials (plastics) are heated by heat, which is released during the process of overcoming internal friction and deformation of the material, and also due to external heating.

The variable parameters of the extrusion process are the composition and humidity of the material being processed, as well as the pressure, temperature, intensity, and duration of exposure to raw materials.

Generally, the main extrusion methods include cold forming, heat treatment, and the "hot extrusion" (molding) method. The extrusion method, as well as the injection molding of plastics, belongs to one of the most popular methods of manufacturing plastic products.

The application of extrusion

The extrusion process can be applied to almost all main types of polymers: thermoplastics, elastomers, thermosetting.

Extrusion is applied in the processing of polymeric materials used for the production of extruded tubes, films, cable membranes, optical systems of rubber compound elements, plastics and ferrite products, etc. Also, this technology is widely used for the production of thermal insulation materials. Polystyrene material, obtained by extrusion, is used for the insulation of railroads, foundations, concrete. The use of this type of insulation reduces the ability to change the surface of the soil as a result of freezing.

The main types of equipment for the processing of polymeric materials through the extrusion method include extruders of a single spindle, double spindle, piston, and disk. There is also a blown type extruder that operates in the same plant.

The molding of the products is done in extrusion lines, the most common type of equipment for the processing of plastics. The line, as a rule, includes several extruders, special extrusion tools and a series of additional devices.

In the case of the PVC pipe extrusion, the main equipment employed is the PVC pipe extrusion machine. This equipment is design with several components with the major parts including the hopper, barrels or canon, spindle, Cylinders with Grooved Zones, and Cylinder temperature control.

There are specifications for the various components — these makeup factors you need to consider when going for a PVC pipe extrusion machine. You need to contact a reliable manufacturer to serve your business needs.

Today, millions of PVC pipes for various applications are produced!