Category: Plastic Extrusion

Types of Blow Molding Processes

Injection Blow Molding:In injection blow molding, a blow or core rod is used throughout the process. First a parison is injected into a split mold cavity around the rod. The parison that is formed looks similar to a test tube. The core rod transfers the parison to the blow mold machine where forced air creates […]

Extrusion moulding

Plastic forming machine

A plastic forming machine, or plastic molding machine, is developed on the basis of rubber machinery and metal die-casting machine. Since the polymer injection molding process and molding equipment in the 1870s, as an industry, plastic forming machines were rapidly developed until the 1930s, with the gradual commercialization of plastic molding equipment, injection molding and […]

extrusion moulding

What is extrusion moulding?

Extrusion is a manufacturing process used to make pipes, hoses, drinking straws, curtain tracks, rods, and fibre. The granules melt into a liquid which is forced through a die, forming a long ‘tube like’ shape. The shape of the die determines the shape of the tube. The extrusion is then cooled and forms a solid […]

Tube Extrusion

What are plastic extrusion products?

Plastic extrusion involves forcing melted plastic through a die into a shape with a fixed cross section. It’s an efficient way to produce many shapes, and is essential in both industrial and domestic product applications. Since the plastic is melted from a solid form and then resolidified, only thermoplastics can undergo extrusion. The properties of […]

Fluoropolymers Properties

Extrusion Materials – Plastics

Plastics extrusion commonly uses plastic chips or pellets, which are usually dried, to drive out moisture, in a hopper before going to the feed screw. The polymer resin is heated to molten state by a combination of heating elements and shear heating from the extrusion screw. The screw, or screws as the case with twin […]

Rod Extrusion Machine

Plastics Extrusion Types

Blown film extrusion This process is the same as a regular extrusion process up until the die. There are three main types of dies used in this process: annular (or crosshead), spider, and spiral. Annular dies are the simplest, and rely on the polymer melt channeling around the entire cross section of the die before […]

Tube Extrusion

PTFE tube molding machine

PTFE tube molding machine Features:Save time and money;Advance designed;High output;Long-life;Tube OD Size range:20-500 mm;Production Per Hour in Kg:10+;Automatic;Computerized; PTFE tube molding machine is to extrude PTFE/UHMWPE Tubes. It is designed using latest technology, fully reliable and easy to operate for customers. Performance in terms of production and working hour capacity is competitive to other machines. […]

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Extrusion Blow Molding

Extrusion is a shape forming manufacturing process that involves forcing material into a die to make other shapes with that matetial. It’s like play dough. Imagine having play dough and pushing it through one of those tools with all the holes. You end up with play dough spaghetti. This is an example of extrusion. You […]

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 […]

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 […]