Extrusion moulding
Extrusion moulding is like playing with play-dough, but on a much larger scale. Just like how you can make different shapes and figures with your play-dough by squeezing it through the holes of the plastic moulds, extrusion moulding works in a similar way by squeezing melted plastic through a hole in a machine called an extruder.
In extrusion moulding, plastic pellets or granules are first melted down into a liquid form. This melted plastic is then transferred to an extrusion machine, which is a long, straight pipe that has a circular opening at one end. The molten plastic is pushed through this opening, which is called a die. The die is a specially designed plate with a hole in the middle, and the melted plastic is pushed through it, forming a long thin tube of plastic.
This long tube of plastic can then be cooled down and cut to the desired length, or it can be shaped by passing it through various moulds along the way. These moulds can be designed to create hollow tubes, solid shapes, or even multiple shapes with different colors.
This method of manufacturing is used to make a wide range of plastic products, from simple household items like plastic bags and pipes, to more complex items like car parts or medical devices.
So, in summary, extrusion moulding is like taking melted plastic and playing with it using a machine and special molds to make all sorts of shapes and sizes.
In extrusion moulding, plastic pellets or granules are first melted down into a liquid form. This melted plastic is then transferred to an extrusion machine, which is a long, straight pipe that has a circular opening at one end. The molten plastic is pushed through this opening, which is called a die. The die is a specially designed plate with a hole in the middle, and the melted plastic is pushed through it, forming a long thin tube of plastic.
This long tube of plastic can then be cooled down and cut to the desired length, or it can be shaped by passing it through various moulds along the way. These moulds can be designed to create hollow tubes, solid shapes, or even multiple shapes with different colors.
This method of manufacturing is used to make a wide range of plastic products, from simple household items like plastic bags and pipes, to more complex items like car parts or medical devices.
So, in summary, extrusion moulding is like taking melted plastic and playing with it using a machine and special molds to make all sorts of shapes and sizes.