In the Chinese market, the single-screw plastic extruder occupies a great development advantage. It has the characteristics of simple structure, sturdy and durable, convenient maintenance, low price and easy operation. In this continuous development process, the technology is also upgraded. , in the direction of quality, efficiency, multi-functionality and other development. Domestic independent research and development capabilities When the twin-screw extruder is used for glass fiber reinforced compounding, if the glass fiber content exceeds 45%, the processing becomes quite difficult. The magnetic powder content of magnetic materials is usually as high as 60% to 70%, and sometimes even more than 90%. It is almost impossible to process and granulate magnetic materials with ordinary extruders. Through the joint efforts of the industry's technology and R&D personnel, some major special types such as exhaust extruder, tandem disc screw extruder, reciprocating pin screw extruder, foaming extruder, and melt gear pump The extruder, tandem multi-stage extruder, planetary screw extruder, etc. are all produced in China, with independent research and development capabilities, and enjoy independent intellectual property rights. Some domestic manufacturers and research institutes have carefully developed independent design of disc extruders according to the needs of domestic magnetic materials and other high-fill materials. Typical examples are Beijing Fengji and Beijing University of Chemical Technology. The disc extruder can be adapted to different high-fill materials by adjusting the disc combination, such as glass fiber reinforced, magnetic plastic, conductive materials, new ceramics and other materials. The reciprocating screw plastic extruder has become a symbolic product of the technical strength of different manufacturers in the domestic market in recent years. The biggest feature of the reciprocating single screw extruder is the high filling process of different materials. When used for glass fiber reinforced materials processing, the glass fiber can be added in an amount of more than 50%. Equipping the plastic extruder with a new screw, barrel structure and exhaust system is also an effective means of achieving increased efficiency and reduced energy consumption. For example, the use of lower shear ratios with higher aspect ratios, the use of slotted barrels, and the use of more efficient exhaust systems are all effective means. Foreign market innovation The twin-screw extruder designed by Battenfeld Cincinnati fully demonstrates the energy-efficient features. For example, TwinEX offers four extruder models from 78mm to 135mm. Compared to other counter-rotating twin-screw extruders, the specific energy input of twinEX is approximately 15% lower, while the yield is improved. This is achieved by lengthening the processing unit to 34L/D in combination with a reduction in heat loss. Key design features include fully insulated barrels, intelligent APC barrel air cooling (strong air cooling system), Intracool screw core temperature regulation system and optimized screw design. In addition to plastic extruders, the continuous development of downstream equipment is also critical to the improvement of profile extrusion performance. Battenfeld Cincinnati not only designs and manufactures downstream equipment, but also exclusively cooperates with Gruber Extrusion Technology on engineering projects. The two professional extrusion technology companies combine to provide a high-capacity, energy-efficient complete window profile extrusion line. Gruber Extrusion Technologies has recently developed an energy-saving vacuum system featuring a more efficient dry vacuum setting and a vacuum chamber with a variable vacuum control system. Compared with the traditional system, the setting table with energy-saving vacuum system can reduce energy consumption by 50%. Conclusion: China's single-screw plastic extruder market still needs to constantly increase the cost of raw materials and energy costs, so that energy-saving and material-saving materials become the focus of the extrusion processing industry. At the same time, extrusion technology suppliers are able to develop a wide range of energy-saving solutions from various angles to meet the energy-saving needs of users. Truck Mounted Water Well Drilling Rig
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