The development of plastic machinery in China
In recent years, with the rapid development of China’s plastic machinery , China’s nationwide plastic machinery manufacturing enterprises has grown up to more than 1000, but only about 400 or so with a certain scale and strength. The development of plastic machinery in China through the “fifth” to achieve leapfrog development, industrial scale expand, the main economic indicators has increased continuously for eight years , its growth rate and the main economic indicators come out first in the top 194 jurisdiction of machinery industry.
Plastic processing industry will continue to be good driving force for high-speed the development of plastic machinery manufacturing industry in China, It expected that in the future China’s plastics machinery demand will average grow by the rate of 6% annually ,to 2010 the output value will arrive 14.5 billion. In other words, the development of plastic machinery industry in China has great and sufficient potential, especially in some models with high technology, good performance,relative affordable price, such as large, sophisticated, special injection molding machine, low temperature, high-speed single screw extruder,used for the production of high resistance and heat resistance and permeability of the multi-layer packaging materials blow molding machines, production of industrial parts (auto parts, etc.) blow molding machine, These machines have a very development prospects.
According to production process of plastic products, plastic machine can be divided into plastic compounding machinery, plastic molding machinery, plastic processing machinery and plastic processing secondary auxiliary machinery or equipment these four categories. Plastic compounding machinery is used for various forms of manufacturing plastic compounds, including the kneading machine, refining presses (mill and mixer), pelletizer, screening machines, crushers and grinding machines.The perfection degree of plastic machinery affect the quality,production and cost of plastic semi-finished products or products directly , so it must be able to adapt to the processing of plastic mixed with the temperature and stress changes, and the resulting molten material performance changes and adapt to chemical corrosion and mechanical wear and other special conditions.Modern design and manufacturing of plastic machinery, in addition depends on the mechanical engineering and materials science development, especially is closely related to the plastic construction progress of theoretical research.
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