my country's plastic machinery technology progress is gradually moving towards the international level

In recent years, the progress of my country's plastic machinery technology is manifested in the accelerated development of new products and new technologies, with a high starting point. The main way for hollow blow molding machines is to introduce, digest and absorb foreign advanced manufacturing technologies. The development of the international market is also an important symbol of the development of my country's plastic machinery. One-third of the company's products have been exported, and the export volume has accounted for about 30% of the domestic sales volume, and the export growth rate has reached 20%.

Taking pipe equipment as an example, since the first aluminum-plastic composite pipe production line was introduced in the mid-1990s, there have been more than 50 manufacturers producing this equipment within 5 years, and its key technologies such as welding and compounding of aluminum pipes have been obtained. Better solution, the integrity and advancement of most products of the hollow blow molding machine have reached the international advanced level.

In the same period, advanced equipment such as steel-plastic composite unit and gas PE pipe unit were successfully developed, and some key technologies were solved, such as high-speed and high-efficiency single-screw machine suitable for medium and high-density PE processing; good mixing effect, short residence time, High-precision die head with no melting line and advanced configurations such as shaping, cooling, pulling, cutting, and thickness measurement.

In recent years, domestic extruders have also developed towards high torque, high speed, and high efficiency and have achieved certain results. Domestic extruders also generally use advanced separate screws and slotted barrels, and the heads generally adopt internationally popular Basket type head and plate type head suitable for polyolefin processing, programmable sequencer and liquid crystal display touch screen industrial computer have also been maturely used.

Plastic film processing equipment using spiral head manufacturing technology is gradually popularized, stacking heads can be popularized and applied, multi-layer co-extruded films have reached 5 layers, geomembranes have adopted internal cooling technology, etc., and the width of co-extruded cast films has reached 2 meters.

The second way is to strengthen the development of technologies with intellectual property rights through technological innovation. Professor Jiang Bo of Beijing University of Chemical Technology and Beijing Fengji Plastic Machinery Co., Ltd. have successively developed a disc-type mixing extruder. Compared with traditional mixing equipment, it improves the mixing effect of materials such as fineness and dispersion, and expands the processing capacity of raw materials. It has significant advantages for processing magnetic, nano and other composite materials. The steel-plastic composite profile extruder production line developed by Beijing Jiancheng Machinery Co., Ltd. solves key technologies such as compounding, foaming, co-extrusion, and cutting at the same time. Shanghai JWELL Extrusion Machine Manufacturing Co., Ltd. has developed a PET/GPET co-extrusion production line with a width of up to 2 meters. The improvement of the level of plastic machinery and equipment is also reflected in the general attention to the complete set of equipment. Especially in extrusion molding, the concept of main and auxiliary machines has been deeply rooted for many years. Most manufacturers only provide main machines, and the ratio of main and auxiliary machines is out of balance. This situation has changed a lot. At present, most extruder manufacturers can Provide a full set of extrusion production lines, and even undertake turnkey projects.