Tag: Extrusion

Crosshead Extrusion

Crosshead Extrusion Process (Wire & Cable Coating)

Crosshead extrusion process is widely used to coat wires and cables with a polymer. The basic procedure includes pulling of the wire / cable to be coated at a uniform rate via a crosshead die, where it is covered with the molten plastic. This extrusion process for coating is used in most wires and cables […]

Tube Extrusion

Overjacketing And Tubing Extrusion

Overjacketing and tubing extrusion are highly preferred processes for extruding a range of plastic materials. The overjacketing extrusion process is discussed here. In the process of wire coating, the bare wire or some bundles of jacketed wires, filaments, etc. are pulled through the die’s center, which is similar to the tubing die. The different materials […]

polymeric-material

Extrusion Materials – Polymeric Materials

Polymeric materials are widely extruded into various products, using sophisticated extrusion machines such as extruder and others. The finished products are used for consumer as well as industrial applications. This extrusion process is an integrated one, in which extruder involves one of the components of the complete line. On the basis of the requirement of […]

Ram Extrusion Process

Extrusion Reprocessing

The term¬†extrusion reprocessing refers to the minimizing of the scrap generation and recapturing of the material value in most of the operations. In almost all types of extrusion processes, it is a common practice to grind up the scrap materials by using granulator or allied suitable equipment. With the usage of this equipment, such granules […]

Ram Extrusion Process

Basic Extruder Machine

Every extrusion company has its own variation of plastic extruder, but the basic operation of all the machines remains the same. Firstly, there is the feeder zone, which transfers the pellets or powder resin from the hopper to the barrel. The plasticizing unit consist of a feed screw, barrel and temperature controller where the resin […]

plastic extrusion process

Types of Plastic Extrusion Process

The plastic extrusion process is broadly classified into seven different types depending upon the specific applications. (A) SHEET/FILM EXTRUSION In this extrusion process, the molten plastic material is extruded through a flat die. The cooling rolls are used to determine the thickness of sheet/film and its surface texture. The thickness of sheet can be obtained […]

Types of Plastic Extrusion

Types of Plastic Extrusion

There are variations to the extrusion process depending upon what type of extrusion is being performed. Here is a look at the different types of extrusion, and the differences from the basic process for each. SHEET EXTRUSION Sheet extrusion, also known as film extrusion, is used for making plastic sheeting and films, and it generally […]

Hot Melt Extrusion

Types of Hot Melt Extrusion

Hot-melt extrusion (HME) is an established process that has been used since the early 1930s, predominately in the plastics manufacturing … There are two types of extruders: single and twin screw extruders. Single screw extruders are primarily used for melting and conveying polymers to extrude them into continuous shapes, whereas twin screw extruders are used […]