How to improve their life expectancy and other issues need to be resolved. The decrease of the residence time of the material in the screw will lead to uneven mixing and plasticization of the material. Excessive shearing of the material may cause sudden temperature rise and thermal decomposition of the material. Difficulties in controlling the extrusion stability will cause changes in the size of the extrudate. Related assistance The precision of the device and control system must be improved. The wear of the screw and barrel needs to be made of high wear-resistant and ultra-high wear-resistant materials. How to increase the service life of the reducer and bearing in high-speed operation needs to be solved.
The efficiency of an efficient, multi-functional extruder is mainly reflected in high output, low energy consumption, and low manufacturing costs. In terms of function, the screw extruder has been used not only for extrusion molding and compounding of high-molecular materials, but also has been widely applied to feeds, carbon, electrodes, explosives, decoration materials, pulp, ceramics and other objects.
The large-scale and precise realization of the large-scale extrusion equipment can reduce the production cost, which makes us proud in all aspects of the large twin-screw granulation unit, the blown film unit, and the pipe extrusion unit, and focuses on building important technologies required for services. The large-scale extrusion granulation units, one of the three key equipments for large-scale ethylene projects, have long depended on imports. Therefore, it is necessary to accelerate the process of localization and give the development needs of the petrochemical industry. The precision can improve the gold content of the product, such as multi-layer co-extruded composite film, etc. all need precision extrusion, and as an important means to achieve precision extrusion - melt gear pump must be strengthened.
Modular and professional "modular" production can adapt to the special requirements of different users, shorten the development cycle of new products, and strive for greater market share; and "specialized" production can arrange the various system module components of extrusion equipment. Fixed-point production even makes global purchases, which is very beneficial to ensure the quality of the whole machine, reduce costs, and accelerate the turnover of funds.
Intelligent and networked Extruders in developed countries have adopted modern electronic and computer control technologies. Process parameters such as melt pressure and temperature, main screw and feed screw speed, and feed amount for the entire extrusion process are various. The ratio of raw materials, the current and voltage of the motor and other parameters are tested online and the closed-loop control of the microcomputer is used. Some companies have adopted online remote monitoring, diagnosis, and control to perform network control on extrusion molding lines. This is extremely advantageous for ensuring the stability of the process conditions and improving the accuracy of the product.
