Sheet extruder is a key equipment for manufacturing high-quality EVA materials

EVA (ethylene vinyl acetate copolymer) is a polymer material with excellent physical properties and chemical stability, widely used in many fields. The production of high-quality EVA sheets relies on specific production equipment, and EVA sheet extruder is a key process equipment that cannot or is missing. This article will introduce the working principle, characteristics, and important role of the equipment in the production process.

EVA sheet extruder is a mechanical equipment specifically used for producing EVA sheets. It adopts the extrusion process, which melts EVA through plastic deformation and extrudes it into thin strips. Its working principle is similar to that of a plastic extruder, but some special designs and adjustments have been made based on the characteristics of EVA materials.

Firstly, it typically uses a twin-screw extrusion mechanism. This is because EVA materials have a certain degree of viscosity and fluidity, and the use of twin screws can provide better extrusion effects and ensure uniform mixing and melting of the material throughout the entire extrusion process. Meanwhile, the design of twin screws can also improve production efficiency and product quality;

Secondly, it has an adjustable extrusion die. This mold structure can be adjusted as needed to control the thickness and width of the extruded sheet. By precise adjustment, EVA sheets that meet the requirements can be produced to meet the needs of different application fields;

In addition, it is equipped with a constant temperature system and a cooling system. The constant temperature system can accurately control the temperature inside the extruder to ensure that EVA materials melt and flow within the appropriate temperature range. The cooling system is used to quickly reduce the temperature of the extruded sheet, allowing it to solidify and maintain shape stability.