Extrusoitujen

Extrusoitujen is a Finnish term that translates to "extruded" in English. It refers to a manufacturing process where a material is pushed through a die of a desired cross-section. This technique is commonly used for a variety of materials including plastics, metals, and food products.

In the context of plastics, extrusion is a high-volume manufacturing process used to create continuous profiles such as pipes, tubing, window frames, and filaments for 3D printing. The plastic material, typically in pellet form, is fed into a hopper and then heated and melted by a screw mechanism within a barrel. The molten plastic is then forced through a shaped die, which gives it its final form. As the material exits the die, it is cooled and solidified, often by water or air, and then cut to the desired length.

For metals, extrusion is used to produce complex shapes that are difficult to achieve through other methods like rolling or machining. Hot extrusion involves heating the metal to a high temperature before forcing it through a die. Cold extrusion is performed at or near room temperature and can improve the strength and surface finish of the product.

In the food industry, extrusion is used to produce a wide range of products, including breakfast cereals, pasta, snacks, and pet food. The process can alter the texture, structure, and digestibility of food ingredients. It allows for the combination of various ingredients and the creation of specific shapes and densities. The high temperatures and pressures involved in food extrusion can also have a sterilizing effect. The term "extrusoitujen" encompasses the products resulting from these diverse extrusion processes.