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The Chinese plastics machinery industry started with imitation and then decided which type of machine to produce according to the needs of the plastics market. For this reason, the manufacturing level of plastic granulation machinery in foreign countries is far higher than the domestic level. Although the technological progress in the manufacture of plastic granulation machinery in China is very fast and fierce, there are still six major advanced technologies relative to foreign countries. The gap is good to catch up.
Compared with the hundreds of thousands of Chinese companies, millions of foreign exchange purchases of foreign advanced equipment, foreign companies' own equipment updates do not always spend money to buy new equipment, but continue to modify the old equipment when conditions permit, The main content of the transformation is the control system. They continue to update the control system and core components of the old equipment until the current full-closed digital control. In this way, not only the processing accuracy and level of the existing equipment of the enterprise are improved, but also the cost is low.
Development philosophy and model are too traditional
Su Dongping said: "After decades of development, China's plastic machinery industry has begun to take shape, with a certain strength and the basis for further development. At the same time, various industries are using plastic machinery, the original plastic factory The plastics processing industry can no longer represent the buyer's market for plastic machinery, so it is no longer possible to copy the previous model, but to consider the problem under the premise of the buyer's market."
According to Su Dongping, according to the international popular model, the tentacles of advanced plastic machinery manufacturers have already penetrated into the direct consumer market. They continue to research, find and discover the needs of the consumer market (including civil and industrial consumption), develop new types of plastic products, and then design machines and arrange process recipes for this purpose, until a set of equipment including equipment is provided. It can successfully produce a turnkey project for a new type of product.
This approach is completely different from the traditional “users need what, what to produce†negative mode, but a positive mode to actively guide the market consumption. To achieve this step, we need a large number of high-quality management talents with innovative spirit; we need a large number of high-quality scientific and technological talents with interdisciplinary and cross-industry; we need an effective, extensive and cross-industry social information circulation system.
Competitive level is significantly lower than international peers
At present, the annual output of China's plastic press products accounts for about 25% of the world's total output, but the output value only accounts for about 9%. According to the internationally recognized evaluation method of enterprise competitiveness, the overall level of Chinese enterprises is significantly lower than that of international counterparts in terms of sales, investment return, research and development investment, production scale and capacity.
In terms of equipment products, compared with industrial developed countries such as Germany, Japan, and Italy, the gap between China's plastic machinery products mainly shows low added value, low variety, high energy consumption, low control level and unstable performance. Su Dongping believes that because of the gap between domestically produced equipment and economic competitiveness, China has a high dependence on foreign advanced high-end plastic equipment.
For example, plastic granulating units in large-scale ethylene engineering, precision injection molding machines for producing carrier optical discs required in electronic and communication engineering, large-scale injection molding machines required in the automotive industry, large-scale multi-layer hollow molding machines, and packaging industries. Multi-layer blow molding machines, precision extruders required in the medical and health fields, etc. have long relied on imports, which is in sharp contrast to China's status as a major producer of plastic machinery.
Design concept lacks reiki
At present, the popular design of foreign plastic machinery is based on the principle of the demand for processed products, allowing users to win in the market as a concept, designing and manufacturing special equipment for the user of the equipment. As a result, a large number of new technologies have emerged, such as three-dimensional loop technology, double bubble tube method, metal plastic processing technology, mixing and injection bonding technology, co-rotating twin-screw direct extrusion technology, melt pump and hot runner technology, gas. Auxiliary, water-assisted injection technology, etc., and thus led to the so-called "modular" design method. Su Dongping pointed out that at present, most of China's plastic machinery companies are still using traditional standard models and improved routines, trying to adapt to the ever-changing market demand and lack of flexible market competitiveness.
There is a gap in control level
In the international arena, in order to make the equipment more efficient and efficient, advanced computer control systems have been adopted. For example, the CANbus bus layout used in the automotive industry, advanced digital map control, networked control of multiple equipment in the workshop, and the construction of a remote service system through the Internet. Domestic measurement and control technology is lagging behind foreign countries for 10 to 15 years, control accuracy, product repeatability, etc., and there is a big gap with foreign advanced levels.
In summary, these six angles are the gaps between the domestic and foreign professional fields in the field of plastic granulation machinery manufacturing. How to catch up with these six angles is a problem worthy of consideration by domestic manufacturers. Resolving these six major gaps will also improve the quality of this professional field in China.
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