Is a large, highly integrated unit really a "soft rib" for domestic companies? It is understood that in the past, China has cooperated with foreign countries to manufacture several 70,000 tons/year plastic granulators. Compared with foreign products, the manufacture of large-scale plastic granulation units in China is still a blank, relying entirely on imports, and at the same time, it also has to bear expensive prices. Director Wu said: “The large-size extrusion granulation unit is a national key technology and equipment project for the 11th Five-Year Plan. It is expected that this year, China will be able to realize the localization of 200,000 tons of large-scale pelletizing units. This will greatly Promoting the development of the entire rubber and plastic machinery industry will also greatly improve the current situation in which machinery products are mostly at low-end operations."
The large-scale plastic granulation unit has an intelligent system integrating high performance, high raw material utilization, low energy consumption, and low pollution. The commonly used advanced control technology performs on-line detection of the parameters of the entire granulation process, such as the melt pressure and temperature, the temperature of various sections of the fuselage, the ratio of various raw materials, and the current and voltage of the motor, and adopts a microcomputer. Closed-loop control. Remote inspection makes the process conditions more stable and the reliability of the unit operation is further improved. Director Wu commented: “The application of large-scale pelletizing units made in China has greatly increased the level of domestic machinery manufacturing companies, making it easier for some advanced automation products and related technologies applied abroad to be integrated into our products. A virtuous circle is formed within the industry; for manufacturers of automation products, there is bound to be some business opportunities."
Relevant data show that it is expected that by 2010, China's average annual growth rate of plastic machinery demand is about 6%. This means that China's plastics machine industry has great potential for development. It is very good for large-scale, precision, special injection molding machines, low-temperature, high-power single-screw extruders, and blow molding machines for industrial products. Prospects. Faced with such a good development prospect, the country’s investment in technology development in the rubber and plastics machinery industry is relatively lacking. In addition, the resolution of intellectual property disputes is not in place. The innovation results of enterprises are not protected and originality is not obtained. excitation. In this regard, Director Wu explained: “In the research and development of new equipment and new technologies, the company’s independent R&D expenditures are disproportionate, which has directly caused some companies to engage in 'acquisitionism', plagiarize foreign products, and lack independent innovation. Domestic enterprises have not yet become large-scale, and most of them are still stuck in price competition." He believes that the country's macro-control and the introduction of relevant policies are very pressing for the press industry in the key transition period, and it is facing a good industry. Development opportunities and policy support can make great achievements in the press industry.
The development potential of China's press industry is huge
In Europe, automation products and related technologies are used in a wide range of applications in the plastics machinery industry. From robots used on the production line to vision systems for checking product quality, from high-precision sensors used in automatic forming systems to automated technologies for remote monitoring, diagnostics and control that are commonly used on extrusion lines, all for European plastics processing. Machinery manufacturers establish a brand image with high output, less defective products, prompt delivery, and long product life. Relative to the advanced technologies used abroad, domestic manufacturers appear to be relatively conservative. "The domestic machinery products will use some conventional automation products, such as PLC instead of traditional instruments, and servo systems in the case of high control accuracy requirements, but because most of China's press manufacturing companies are mostly small-scale production lines, Therefore, some overly complex automation techniques are not suitable for these applications,†explained Wu.