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We all know that the development of technology is very fast, and many machines have incorporated elements of technology. An extrusion composite machine is an instrument composed of a single screw extruder or a twin screw extruder and a composite machine die head. Each extruder conveys molten plastic to the composite machine head and merges it in the molding section of the machine head. Composite co extrusion processing can complete the coating composite process of multi-layer composite material extrusion composite molding in one process. Extrusion composite machines are widely used in various soft packaging industries such as paper, cloth, BOPP film, liquid milk filling, pharmaceutical packaging, etc. Below, we will introduce the characteristics of extrusion composite technology.
1. The cost of extrusion composite process is relatively low. At present, some advanced extrusion composite machines are equipped with thin edge mechanisms, which achieve no cutting edges and reduce the loss of edge materials to * *, further improving the cost advantages of extrusion composite processes. At the same time, extrusion composite processes also have advantages such as fast production speed, a wide range of available substrates, low residual solvents in composite products, and low environmental pollution.
2. However, there are also some drawbacks to the extrusion composite process, such as high initial investment in equipment, significant losses during temperature rise and fall or resin replacement, relatively complex production and quality control, easy to produce high-temperature odors, and poor product flatness. In addition, the composite strength of the extrusion composite process is relatively low, especially when the extrusion composite speed is fast, this situation is more likely to occur. But with the continuous development of plastic resin extrusion composite equipment and technology, the shortcomings of extrusion composite technology are gradually overcome. At the same time, the range of products that meet the basic requirements is further expanding, and its unique advantages are becoming increasingly apparent.
