Ekstruusiolla

Ekstruusiolla is a Finnish term that translates to "extrusion" in English. It refers to a manufacturing process where a material is pushed through a die of a desired cross-section. This process is commonly used for creating continuous profiles of materials such as plastics, metals, and food products.

In the plastics industry, extrusion is a primary method for producing a wide range of products including pipes, window frames, and films. The raw plastic material, typically in pellet form, is fed into an extruder, which heats and melts it. A screw mechanism then pushes the molten plastic through a shaped die. As the plastic exits the die, it cools and solidifies into the desired profile.

For metals, extrusion is used to create complex shapes that are difficult to achieve through rolling or drawing. Hot extrusion involves heating the metal billet to a high temperature before forcing it through a die. Cold extrusion is also possible, which can improve the mechanical properties of the metal but requires more force.

In the food industry, extrusion is employed to produce a variety of products like pasta, cereals, and snacks. Food ingredients are mixed and then passed through an extruder, where heat, pressure, and shear forces transform them into the final product shape and texture. This method allows for consistent product quality and efficient mass production. The term "ekstruusiolla" therefore encompasses this versatile manufacturing technique across various industrial applications.