1. High-precision machining and wear-resistant materials
Advanced CNC machining centers and precision measurement technologies are used to ensure that the inner wall of the barrel is smooth and defect-free. Wear-resistant and corrosion-resistant alloy steels or stainless steels are selected and subjected to special heat treatment to enhance hardness and service life.
2. Conveying and plasticizing effects of the thread (screw groove) structure
The threads are designed in sections, forming a conveying section, a melting section, and a metering section. Plastic particles are pushed forward by the screw grooves in the conveying section. At the same time, friction and shear are generated between the particles and the inner wall of the barrel, preheating and compacting the materials. After entering the melting section, the shear force and frictional heat of the threads gradually heat the plastics to the melting state, forming a uniform melt flow.
3. Mechanism of shear heat generation
When the screw rotates, the shear action between the threads and the plastics generates a large amount of heat energy. Combined with the heating rings outside the barrel, the plastics are quickly softened and completely plasticized, ensuring a uniform melt temperature and stable viscosity.
4. Functional division of segmented pitch and depth of the threads
The screw is divided into three equal parts according to the pitch and depth of the threads: the front section is used for material compaction and preheating, the central section provides the main shear plasticization, and the rear section enhances the compaction degree and forms a uniform melt, ensuring continuous and uniform conveying and plasticization of the materials throughout the barrel.
5. Energy efficiency and noise control
By optimizing the geometric shape of the threads and using high-efficiency heat-conducting materials, mechanical energy consumption and noise vibration are reduced, improving the comfort of the operating environment. At the same time, lower energy consumption and higher production efficiency are achieved.
6. Application scope and market advantages
single screw barrels are widely used in the modification and granulation processing of various plastic products such as pipes, sheets, films, profiles, and cable coatings. They have been exported to many countries such as the United States, Germany, Dubai, Vietnam, and Thailand. With high cost-effectiveness and reliability, they have become the preferred suppliers for international customers.