Extruder definition and working principle,extruder is an important equipment for the manufacture of plastic products.It achieves plastic melting and molding by heating plastic particles and pushing them into a cavity in the mold.
The core component of the extruder is a screw that rotates to push the plastic particles through the heating cylinder.When the particles pass through the heating cylinder,they are subjected to high temperatures,which melts into a moldable melt.The screw continues to push the melt through small holes in the mold to give it the desired shape and size.
Application areas of extruders
Extruders are widely used in plastic products industry.Here are some common extruder applications:
1.Plastic products production
Extruders can be used to produce a variety of plastic products,including plastic pipes,sheets,films,seals,cable sheathing,etc.It has the advantages of high production efficiency,low cost and stable product quality,and is a key equipment for large-scale mass production of plastic products.
2.Plastic composite material manufacturing
Extruders can also be used to manufacture plastic composites,such as wood-plastic composites,glass fiber reinforced plastics,etc.By adding appropriate fillers and reinforcing materials to the extruder,the physical properties and durability of plastic products can be improved.
3.Granulation and recycling
The extruder can not only melt the plastic particles into shape,but also break,melt and granulate the waste plastic for the re-manufacture of new plastic products.This recycling process can reduce environmental pollution and reduce production costs.
Sum up
An extruder is an important device used to manufacture plastic products,which melts and forms plastics by heating plastic particles and pushing them into molds.Extruders are widely used in the production of plastic products,the manufacture of plastic composite materials,and the pelletizing and recycling of plastics.It plays a vital role in industrial production and promotes the development and application of plastic products.