Five key development directions of plastic package machinery industry

According to the development trend of Chinese plastic products and the need of product structure adjustment and the actual situation of China’s plastic package machinery industry, some concerned parties suggest us to focus on solving the following five aspects of technology problem in the next period.

First, high polymer material stretching, composite, foam technology equipment – stretching, composite, foam are extremely important special technology during molding process, related to the raw material formulation, molding process, plastic machinery and plastic mold. In recent years, our country have made great progress in some areas, such as PUR reaction injection, close to the German technology level; foam pipe, foam plastic net, foam film has reached practical application level. According to the development of foreign market’s demand, we should focus on two-way stretch film forming technology and equipment, to reach the degree of practical application of technology and the degree of commercialization of equipment.

Second, the flat extrusion molding process and equipment - "T" (or coat rack) machine head as the symbol of the molding technology in recent years, it develops rapidly at home and abroad, and increasingly mature, perfect, its importance and plastics processing Accounting for the rapid increase in weight.Chinais in the initial stage of development on such technology and equipment, most of the equipment is blank. In recent years, some of our research and production units developed PVC foam sheet (plug Luka and free foam method) production line, technology is poor, compared with foreign equipment there is a big gap. In order to master this kind of technology, the key is to solve the manufacturing of machine head, cooling device and calendering device etc equipment, including the temperature of the object rheological study. Based on the development of single-layer sheet production technology and equipment, develop co-extruded sheet production technology and equipment.  

Third, the electromagnetic dynamic principle and application - Electromagnetic dynamic extruder for the world's first, in a certain range, some products have been successfully applied (such as for small and medium blown film production). The extruder could save material, has good economic and social benefits, other technologies can’t compare. But nowadays, the application arrange is not wide, except need to solve the corresponding molding device, also need to solve on the thermal balance at high-speed and high-efficiency electromagnetic dynamic extrusion theory, improve the plasticizing ability and quality of high-molecular-weight materials.

Fourth, on-line detection and automatic control technology - in the plastics industry developed countries, the number of injection molding materials, intelligent control and proportional or servo system technology has matured, and it is rapidly updated to file; extrusion molding equipment to achieve full line of online control, and an on-line detection device. Basically, domestic made plastic molding equipment is a single-machine control, on-line control less, the considering heavy input, high cost, thickness measurement device and the corresponding control technology is rarely used.

Fifth, the establishment and application of computer CAD / CAPP /CAMsystem have been generally applied in foreign countries, domestic has the basic conditions, it should be actively popularized application