What is the push -up?

creation or extrusion or extrusion is to form plastic or metals to a predefined shape. During the process, metal or plastic melts and pushes to die to form a linear form. The final shape, commonly called a rod, although not necessarily cylindrical, is then cooled and then can be cut to different lengths, depending on application.

If you cut the material rod, the shape you see is called a cross -section. The shape that emerges from the extrusion machine is identical to this cross -sectional piece. It is uniform in the entire item until the material or ground changes.

The forming pressing machine differs in size, but is usually at least the size of the car. It is equipped with a method of inserting the material into the machine and melting into a liquid state. Then it can be promoted through the matrix to form its shape.

The formation of plastic formation and metal displacement is actually similar, but differs in operation. To form plastic there is a large funnel called the hopper. ToSmall pellets of material, such as high density or plastic, are poured. These pellets are easily melted into a liquid state and pushed to die to form a plastic tube or a rod of some shape. For pressing from the extrusion of metals, a pre -heated stick called Sochory is inserted into the machine and then pushes to push it and form a metal tube or a rod.

As with injection formation, there are many variables that need to be considered when extruding materials. Material temperature, pressure at which the material is forced to die, and the time of extrusion is factors that can be adjusted to create ideal material conditions. Creation of pressing is similar to injection in that it melts and forms plastic or metal intoo predefined shapes. However, with injection forming is not plastic or metal continuously extruded. The mold or die is filled with the material, the material is cooled and then opens to drop pre -created shapes into the container.

at the proposalThe register for the extrusion machine must take into account the factors that affect the finished material after cooling it. For example, plastics and metals have a speed of shrinkage, a percentage of size that is lost after the material cooling. When designing the matrix, it is necessary to consider the degree of shrinking of different materials.