PTFE extruder is a kind of equipment used to produce polytetrafluoroethylene (PTFE) products. PTFE is a polymer material with excellent chemical stability,
high temperature resistance and non-stickiness, so it is widely used in industrial, medical, aerospace and other fields. The working principle of the PTFE extruder
will be introduced below.
First of all, the PTFE extruder is composed of a feeding system, a heating system, an extruder barrel and a die. The feed system heats PTFE pellets or powders to
a molten state and then delivers them to the extruder barrel.
Inside the extruder barrel is a rotating screw called the extruder screw. When the PTFE material enters the extruder barrel, the extruder screw starts to rotate to
push the PTFE material forward. During the pushing process, the extruder screw continuously heats and compresses the PTFE material to make it extrudable.
When the PTFE material reaches the end of the extruder barrel, it is forced into the die and extruded through the channels of the die. The shape of the die determines
the shape and size of the extruded PTFE product.
It should be noted that PTFE material has high viscosity and adhesion, which is easy to produce reflow and stagnation during extrusion. Therefore, the extruder barrel
and die must maintain a specific temperature and pressure to ensure smooth extrusion of PTFE material.
In general, the working principle of the PTFE extruder is to heat and compress the PTFE material through the extruder screw to make it extrudable, and then extrude
it through the die. This kind of equipment plays an important role in the production of PTFE products, and can produce high-quality and high-performance products.