Through years of hard work and continuous innovation and development, plastic machinery has become an important pillar of the development of the plastics industry. It provides advanced technology and equipment for the plastics industry. Its development is the basis for the development of the plastics industry, and it is also affected by the development of the plastics industry. In the long-term planning of China's plastics industry, the average annual growth rate of plastic products is about 10% from 2000 to 2005, and the average annual growth rate will reach 8% from 2006 to 2015, that is, the output of plastic products will reach 25 million tons by 2005. It is estimated that the total output of plastic products will double in 2015, reaching 50 million tons.
The good development prospects of the plastics processing industry will continue to be the source of the rapid development of China's plastic machinery manufacturing industry. It is estimated that from 2001 to 2010, China's demand for plastic machinery will grow at an average annual rate of around 6%, and is expected to reach 14.5 billion yuan in 2010. That is to say, China's plastic machine industry has great development potential, and its stamina is very good, especially some models with high technology content, good performance and relatively moderate price, such as extra large, precision, special injection molding machine, low temperature, high power type. Single-screw extruders, which are used in the production of high-permeability and heat-resistant packaging materials, etc., have good development prospects. From the perspective of the global market, the varieties of plastic machinery mainly consist of three major categories of injection molding machines, extruders/extrusion lines and blow molding machines, which account for more than 80% of the total output value of plastic machinery, of which injection molding machines account for these three. More than half of the total mechanical machinery.
Injection molding machine is new. Because the injection molding machine has developed too fast in the past few years, in addition to the mainframe, the general specification of the injection molding machine has been oversupplied; but some high-tech injection molding machines, the market demand is gradually stronger. There are mainly the following types of models: First, all-electric, full-hydraulic precision injection molding machines. The main products of this type of products are electronic communication, audio and video, home appliances, automobiles, etc. The processing conditions are relatively high, and the precision requirements for injection molding machines are also improved. These industries are all sunrise industries and have great room for development.
The second is a hollow injection molding machine. This is because the stress damage of plastic parts under vibration is a big problem in automotive plasticization and other engineering applications, and a variety of rubber and plastic materials combined with hollow injection molding technology can effectively improve the above defects.
The third is a new injection molding machine with air-assisted, water-assisted devices. This type of new injection molding machine has a large market, especially for products with high appearance requirements and long service life, such as home appliances, automobiles, and buildings.
Due to the continuous expansion of the application market and technological breakthroughs, the extruder market is still able to maintain a slight upward trend. However, the market price of domestic extruders has fallen sharply, and it has become difficult to avoid. It has affected the overall image and market competitiveness of domestic plastic presses and hindered the development of plastics processing industry. In the past two years, only the German company Klaus Maffei has provided more than one hundred profile production lines to China. Most of the enterprises with strong plastic doors and windows and pipe processing industry are looking for imported equipment. This is a domestic manufacturer. failure.
The future market of extruder mainframes and production lines will develop in the direction of high technical content and low price. Domestically produced mainframes are now mainly based on conical twin-screw extruders and single-screw extruders. The technology is relatively mature and the market sales are also the largest, but the general specifications of such products have been oversupplied and can only maintain the peak period of the market. 50% to 60% or so. The focus of the mainframe in the future is to develop parallel counter-rotating twin-screw extruders for molding extrusion with large extrusion volumes. Parallel co-rotating twin-screw extruders should be developed in the direction of the sixth and seventh generations of high speed and large aspect ratio. The development direction of the single-screw extruder is large diameter, large aspect ratio, and smooth exhaust. In fact, the single-screw extruder is a low-energy, low-cost machine. As long as the technology is right, it can basically achieve the performance of the twin-screw extruder. For example, the plastic extruders currently used in the United States are mostly Single screw, because of the high technical content, replaced the twin screw extruder.
Blowing machines are developing at a lower price for blow molding equipment (about one-third to one-half of injection molding) and low energy consumption (in injection molding, the pressure in the mold cavity is 15 to 140 MPa, while blowing The billet's inflation pressure is generally less than 1 MPa), and the adaptability is strong (complex structure can be formed, double-walled parts), which makes up for the lack of injection molding processing, and the formed industrial parts have a high degree of integrity and comprehensive performance. Good, high added value and low cost. Therefore, although the current blow molding machinery accounts for the lowest proportion of the three plastic presses, it will maintain a strong development momentum in the future and is the fastest growing and most promising model.
Auxiliary equipment such as plastic auxiliary machine, pulverizer, feeding machine and heater are an important part of the plastic production line, which directly affects the production quality and production efficiency of the products. At present, domestic manufacturers are overwhelming, but the specifications are basically In the same scope, it is technically difficult to compete with imported machines, and most of the imported plastic production lines have been equipped with the above-mentioned auxiliary machines at the time of introduction, which has also reduced sales volume. Therefore, the domestic auxiliary machine market is highly competitive. The market capacity does not match the number of companies, which is bound to cause this situation. The recent development direction of this type of products is to have ultra-fine pulverization (preparation for the nano-materials industry), vacuum filtration, large-scale low-noise, high-speed pulverization and other functions.