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Twin Screw Extruder Plastic Machinery
- Jul 03, 2017 -

Twin Screw Extruder Plastic machinery

According to statistics, China's plastic machinery is about 70% injection molding machine. From the United States, Japan, Germany, Italy, Canada and other major producing countries, injection molding machine production are increasing year by year, accounting for the largest proportion of plastic machinery.

With the rapid development of China's injection molding market, with the relevant core production technology applications and research and development will become the focus of attention of enterprises in the industry. Understand the domestic and foreign injection molding production of core technology research and development trends, process equipment, technology applications and trends for enterprises to enhance product technical specifications, improve market competitiveness is critical.

In the injection molding industry, in 2006, the proportion of injection mold further increased, hot runner mold and gas-assisted mold level to further improve the injection mold in the amount and quality have a faster development, China's largest single injection mold weight has more than 50 tons , The most sophisticated injection mold accuracy has reached 2 microns. In the CAD / CAM technology is popular at the same time, CAE technology applications more and more widely.

In the current production, the injection pressure of almost all of the injectors is based on the pressure applied to the plastic at the top of the plunger or screw. Injection pressure in the injection molding made by the appeal is to overcome the movement of plastic from the barrel to the cavity of the movement resistance, to the filling speed of the melt and the end of the compaction of the melt.

 Injection molding machine energy saving, cost savings is the key

 Injection molding machine is China's largest production and application of the machine, but also the export of Chinese plastic machine assistant. In the late fifties of the last century, China's sound field out of the first injection molding machine, but because of the low technological content of equipment, to use general plastic to produce lower technical requirements of daily necessities, such as plastic boxes, plastic barrels, plastic pots and so on. Injection molding technology in the country has been rapid development, new technologies, new equipment after another. Computerized. Automation, stand-alone multi-functional, diversified auxiliary equipment, a combination of rapid and easy installation and maintenance will become a trend.

 If you reduce the energy consumption of injection molding machine, not only for the injection molding machine enterprises to reduce costs, but also can contribute to the domestic environmental protection. Insiders believe that energy-saving injection molding machine products for the promotion of China's plastics machinery industry transformation and upgrading, to build a new industrial structure, has an important role and a positive impact.

 Traditional plastic machinery in energy conservation also has a certain potential, because the previous design is often only focus on stand-alone production capacity. In the design of energy-saving plastic machinery, the production speed is not the most important indicator, the most important indicator is the processing unit weight of the energy consumption. Therefore, the mechanical design of the equipment, the control mode, and the operating conditions must be optimized based on the minimum energy consumption.

The general injection molding machine is the use of quantitative pump oil, the injection process of the various movements on the speed, pressure requirements are not the same, it is through the injection molding machine proportional valve with overflow regulation way to excess oil through the return line Back to the tank, in the whole process, the motor speed is constant, so the fuel supply is fixed, and because the implementation of the action is intermittent, and can not be full load, so there is a large amount of quantitative oil Of the waste of space, according to the measured at least 35-50% or so.