Dalian extrusion molding production is a type of mold for continuously shaped plastic products, also known as extrusion molding machine heads, widely used in the processing of pipes, bars, monofilaments, plates, films, wire and cable coatings, and profiles.
The corresponding production equipment is a plastic extruder, which is based on the principle of melting and plasticizing solid plastic under heating and rotating pressure conditions of the extruder screw. Through a specific shape of the die, it is made into a continuous plastic product with the same cross-section and die shape.
Its manufacturing materials mainly include carbon structural steel, alloy tools, etc. Some extrusion molds also embed wear-resistant materials such as diamonds on the parts that require wear resistance.
The extrusion process is usually only applicable to the production of thermoplastic products, and it has significant differences in structure from injection molds and compression molds.
The principle of extrusion molding: The material enters the material barrel from the hopper, and under the rotation of the screw, it is transported forward to the feeding section through the friction and shear action of the inner wall of the material barrel and the surface of the screw. At this point, the loose solid is transported forward and compacted; In the compression section, the depth of the screw groove becomes shallower, further compaction is carried out, and at the same time, heating is applied outside the material barrel and friction and shear are applied between the screw and the inner wall of the material barrel. As the material temperature rises, melting begins, and the compression section ends; The homogenization section homogenizes the material, extrudes the melt at a constant temperature, quantity, and pressure, forms it at the machine head, and forms the product after shaping.
Dalian Extrusion Molding Processing Factory is a plastic product company specializing in injection molding, extrusion molding, and hollow molding. The company has high-quality management personnel and excellent technical team, complete models of plastic processing equipment, including 20 40T to 450T injection molding machines and 10 pieces φ 25- φ 90 extrusion molding production line, 4 blow molding machines, and various equipment equipped with automatic feeding machines, dehumidification dryers, mold temperature machines, and chillers and other auxiliary equipment. Our company has excellent product quality and high service. Welcome to inquire!
