PVC, or polyvinyl chloride, is the world’s third-most widely produced synthetic polymer of plastic. PVC is extremely malleable in its raw state and can be molded into any shape. Once a profile has been chosen, this thermoplastic material is sent through an extruder and made into either flexible PVC or rigid PVC depending on the intended use.
PVC Plastic Extrusion Process
The PVC extrusion manufacturing process begins when high-quality raw materials are heated and fed through a plastic extruder. PVC plastic is placed in a hopper, a large funnel that holds the raw plastic in either granules or pellets, suspended above a moving extrusion line. The PVC is then released from the hopper into the line, and a long shearing screw forces the PVC down the line as it turns.
At the end of the channel is a die, which is a tool that shapes plastic materials into usable products. The turning of the shearing screw combined with heat generated from electric heating elements causes the PVC to melt by the time it reaches the die. The custom plastic extrusion can be forced through the hole of the die once it becomes molten. The molten plastic is then forced through the die, and it takes its shape.
When it emerges on the other side of the die, it is a new extruded product. The extruded plastic is then allowed to cool and cut to the desired length.
PVC Extrusion Capabilities
Rigid PVC can be extruded into a limitless variety of tubing extrusions, strips, and piping profiles. Extruded rigid PVC pipes are among the most widely used plumbing materials in the world. Flexible PVC can also be extruded into plastic tubing and used in food processing, wastewater treatment and in many other applications.
PVC plastic products can be useful for:
Plastic Extrusion Technologies’ multi-line operation allows for easy custom plastic profile extrusions for both small and large profiles ranging from 1/32″ to 13″. Thanks to our detailed analysis efforts, we are able to ensure the utmost design optimization along with high volume speed-to-market production. In addition to PVC Extrusion, we work on a number of plastic extrusions and finishings. For more information, contact us here or request a quote if you’re ready to get started with Plastic Extrusion Technologies.