The import of the hottest injection molding machin

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The import of injection molding machines is larger than the export, so we need to speed up the transformation and upgrading

in the development process of China's injection molding machine industry, we have always followed the traditional route. The early injection molding machines were all hydraulic. Due to the needs of environmental protection and energy saving, as well as the mature application of servo motors and the sharp decline in prices, there have been more and more all electric precision injection molding machines with low prices in recent years. According to statistics in 2001, China imported silicon injection Pu stadium molding machines, using foreign exchange of 1.12 billion US dollars, while the export of injection molding machines earned foreign exchange of only 130 million US dollars, which is much larger than the oil flow from the oil return pipe to the oil tank outlet

at present, China's injection molding machine products are mainly concentrated in general-purpose small and medium-sized equipment. The supply of low-grade products exceeded demand in the 1920s, with excess machinery manufacturing capacity and declining enterprise benefits. Some varieties, especially super refined large and high-end products, are still blank and still need to be imported

full hydraulic injection molding machine has many unique advantages in molding precision and complex products. It has developed from the traditional single cylinder liquid filling type and multi cylinder liquid filling type to the current two plate direct pressing type, of which the two plate direct pressing type is the most representative, but its control technology is difficult, the machining accuracy is high, and the hydraulic technology is also difficult to master

all electric injection molding machine has a series of advantages, especially in environmental protection and energy saving. Due to the use of servo motor, the injection control accuracy is high, the speed is relatively stable, and it can also be adjusted at multiple levels. However, the service life of the fully electric injection molding machine is not as long as that of the fully hydraulic injection molding machine. To ensure the accuracy of the fully hydraulic injection molding machine, it must use the servo valve with closed-loop control, and the servo valve is expensive, which brings about an increase in cost

electrohydraulic injection molding machine is a new type of injection molding machine that integrates hydraulic and electric drive. It integrates the high performance of the full hydraulic injection molding machine and the energy-saving advantages of the full electric injection molding machine, which can be automatically calculated and displayed by the computer. This combined electrohydraulic injection molding machine has become the development direction of injection molding machine technology. The injection molding industry is facing an opportunity of rapid development. However, in the cost composition of injection molding products, electricity accounts for a considerable proportion. According to the needs of injection molding machine equipment and technology, the power consumption of injection molding machine oil pump motor accounts for 50%-65% of the power consumption of the whole equipment. Therefore, it has great energy-saving potential. Designing and manufacturing a new generation of energy-saving injection molding machines has become an urgent problem to be concerned and solved

after China's accession to the world economic and Trade Organization (WTO), the transfer of foreign machinery manufacturing industry to China has accelerated. Some world-renowned injection molding machine enterprises, such as Demark, Krupp, badenfeld, Sumitomo heavy industries of Japan, have successively entered China, and some have further established technology centers. The entry of foreign injection molding machine manufacturers has brought development vitality to China's injection molding machine industry, and also made China's injection molding machine manufacturing enterprises full of opportunities and challenges

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