PTFE Extruded Tubes: Made For The Unique Purpose

What makes the pipes or tubes of extruded PTFE Teflon is unique in the polymer. Delicate in nature and easily destroyed by ill-treatment, if done correctly will create a technological marvel that has properties that make a product much in demand in many sectors. In this article we will increase the polymer itself and how technological advances have made it much easier to create tailor-made Teflon tubes each use.

PTFE V/S Other Polymers

Most polymers used in the creation of the extruded tube of plastic today, has a low melting point, which makes it easy to drive machinery at moderate temperatures, and create a pipe extrusion die directly from the tank through the resin, without any preparation if not for the right resin hopper is in the correct amounts. Extrusion is one of the cheapest methods of manufacture for this reason, fewer man-hours in preparation means less cost to make the final product.

PTFE or Teflon, on the other side has a very high melting point such as a polymer, and it is almost impossible to use to measure the pipe through an extrusion process, but certain preparations are made in advance before as production begins. It is also not so easy to use one of these off the shelf polymer resin beads that come in shape, either. Extrusions originally made previously required a core wire to be inserted into the mold and extruded PTFE tube was created around it so it would not collapse on itself because it was that delicate. Today extrusion requires a refined set of measures to get the complete product, which is what we'll cover next.

Definition of the process of extrusion of PTFE paste now

PTFE resin polymer is in powder form, which has only an average particle size of about 0.2 mm. The powder itself is very waxy, and as such can be easily broken or cut through manipulation, especially by mechanical means. For this reason, the equipment cannot be treated in an environment around 20C, and must be mixed first with mineral spirits or other types of binding using extrusion and the material before treatment. The treatment will do the following:

Compression: To prepare the material for the extrusion, the mixture of PTFE must be compressed in the form of ingots with a hydraulic press. It will take approximately two hours to complete, including downtime, to ensure that no air bubbles remain in the polymer.

Extrusion: packed in polymer is now loaded by compressing into a mold, where the spindle nut and locked. Planning to die as a result determines not only the strength of the pipe, but also to determine the final size, between the inner walls of force. During the extrusion of the material is against the nut and spindle, forcing the material into the desired shape. All Teflon tubes produced in this phase, the material considered "green", and can be easily damaged, while in this mode.

Cure: The Green Teflon tube was taken from the extruder and passed through an oven at low temperature during this phase. The purpose of this is volatile mineral spirits or extrusion binders used to hold the resin and in preparation. Leaving these chemicals in polymers now could weaken its material strength, and leave it open for combustion should never reach the flash point mineral spirits during use. This whole process can take 24 hours to complete, depending on the thickness of the finished tube.

Cutting: When PTFE extruded hose was healed and all binders are evaporated, the tube is first cleaned by sterilization in the oven in accordance with quality guidelines ISO clean room VI, the minimum requirement of Teflon tubes. The product is then cut into custom lengths for packaging. If the proposed product is for use in the medical field, all loop lengths capped as soon as it leaves the oven, keep the tube surface sterilized before packaging and shipping.

Source: www.impreglon.com/

5812-87 Street
Edmonton, AB T6E 2Y4

Phone: 780-465-5050
Email: contact@impreglon.com