Plastic Extruder is another line of service range in our plastic manufacturing process. It comes along with the Injection moulding. The Extrusion of plastics materials is a a common method of forming plastics materials. The Plastic raw material is both melted and transversed along by the action of heated rotary screws. It is a continuous process to create any applicable plastic mold products.
FanmasGroup currently working on automotives, electronics, and general parts. Plastic Extruder service additionally makes the long line of process can be handled in a package. Typically we use the following materials: HDPE, PVC and and PTFE filled PVC. From this materials, any request of plastic parts can be produced perfectly.
Electronic tubes, Knobs and panel button, Land Drainage Tubing, Animal Feeding Troughs, Cable Harness, Door Seals, Light Diffusers, Electrical Conduit and Cable Protector, Rainwater Pipes and Guttering, Facia & Soffit Sections, Curtain Track, Fridge Seals, Edge Trim, Caravan Window Surrounds, Garden Fence Posts & Decking, Blood Drip Tubes & Catheter Tubes, Dip Tubes, Gas Pipes, Water Pipes, Soil Pipes and Window, Door and Conservatory Sections etc.
Plastic Extruder service is the extrusion of complex shapes such as rain gutters, structural supports, and other components, brings with it some of the most complex die designs of any extrusion process. This difficulty is due to two primary concerns: producing the initial, still molten profile, and then controlling for asymmetrical shrinkage and die swell due to varying wall thicknesses.
Unlike in blown film, pipe, and sheet extrusion, the dies used in profile extrusion are rarely round or completely flat. Whereas a round (or flat) profile has uniform flow rates along all edges, this is not the case for more complex shapes. Take, for instance, the example of a simple, solid, square profile. The velocity of the melt is highest at the center of the die, and slowest at the edges and corners due to friction between the melt and die walls. When moving from the center of the die to the midpoint of one of the edges, the velocity gradient is high, especially near the outer die wall.
However, when moving from the center to one of the corners, the velocity gradient is more gradual. As a result, the extruded square profile will experience more die swell at the edges than the corners, causing the once square profile to become more circular. This can be compensated for by bowing in the sides of the die so it approximates the shape of a four-pointed star; the sides of the polymer melt will now swell to the intended dimensions.
As the desired plastic extrusion becomes more complex, the die in turn becomes more complex. Care must be taken to minimize weld lines, as well as ensuring complete filling of the die to prevent bubbles and other defects in the finished extruded profile. After the initial extrusion is complete, the molten polymer profile is cooled slightly before being run through a sizing die. This die ensures that the extruded profile meets specifications, and can correct the shape to fit those specifications. After sizing is complete, the profile is cooled before any further processing.