ekstrudeerimisvõrku

Ekstrudeerimisvõrk is an Estonian term that translates to "extrusion mesh" or "extrusion grid" in English. It refers to a type of mesh or grid structure commonly used in extrusion processes, particularly in plastics manufacturing. This mesh is typically made of metal wire, often stainless steel or bronze, woven or sintered into a specific pattern. Its primary function is to act as a filter or support during the extrusion of molten polymers.

During plastic extrusion, the molten plastic is forced through a die to create a continuous profile. Before reaching the die, the molten material passes through one or more extrusion meshes. These meshes serve to remove impurities and contaminants from the plastic melt, preventing them from causing defects in the final product. They also help to stabilize the flow of the polymer, ensuring a more uniform and consistent extrusion. The mesh can also provide support to the molten material as it is being pushed through the extruder, helping to maintain its shape before it enters the die.

The design of the extrusion mesh, including its aperture size and material, is crucial and depends on the type of plastic being processed and the desired quality of the final product. Finer meshes are used for applications requiring higher purity, while coarser meshes may be suitable for less demanding uses. In some cases, multiple layers of meshes with different aperture sizes are used in combination to achieve optimal filtration.