With the rapid development of science and technology, miniaturized products are more and more favored by many industries, so microelectromechanical systems (MEMS) were born. Over the past 30 years, MEMS technology has made remarkable achievements in its development, and it has been widely used in aerospace, electronic communication, biomedicine and other fields. In order to further expand the application scope of MEMS technology, the large-scale production of micro parts is needed.
Mass production of micro-plastic parts or components can be achieved by micro-injection molding technology (Micro Injection Molding Technology). Micro-injection molding generally refers to the injection molding method used to make the size of micron grade and mg grade quality of micro- Plastic Products .
Micro injection molding technology has significant advantages, its molding process is simple, can meet the manufacturing needs of large-scale, various sizes and shape parts, stable quality, high production efficiency, low production cost, it is easier to achieve large-scale and automated production. Micro injection molding technology needs special equipment —— micro Injection Molding Machine , the development of micro injection molding technology largely depends on the advanced degree of micro Injection molding machine .
Micro-injection molding process is characterized by a small injection volume, and requires the accurate measurement of the injection volume, and the performance requirement of the micro-injection molding machine is high. The structural composition of the microinjection molding machine includes the plasticizing part, the metering part and injection part.
The basic requirements of micromolding technology for microinjection molding machine: the ability of driving equipment to react quickly, precision measurement of measuring unit, and high injection rate of injection unit. Accordingly, the design key points of the micro-injection molding machine are as follows:
(1) The driving system should have rapid response ability and accurate and adjustable driving device is the key to high performance micro injection molding machine, which is the prerequisite for the fault-free production of micro plastic parts.
(2) The metering unit should have a precision injection volume. The metering microinjection molding machine needs to have a control unit for one injection in the process of precision metering injection. The quality control accuracy should reach milligram level, the diameter of the screw should be reduced accordingly, and the travel accuracy of the screw rod should reach micron level.
(3) The injection unit should have a high injection rate. During the molding process, the micro-plastic melt should ensure sufficient injection rate to meet the integrity of the product shape.
(4) The control unit shall have accurate control and regulation ability; the process parameters during micro-injection shall be multistage feedback control and regulation; the temperature of material cylinder, nozzle temperature, hydraulic oil temperature and mold temperature will directly affect the quality of plastic parts, so it needs to be accurately controlled.
In 1985, the world's first micro injection molding machine was successfully developed in Germany, and then the scientific research units around the world have developed many kinds of special micro injection molding machines. At present, micro-injection molding machine manufacturers are mainly concentrated in Germany, Japan, the United States, etc.
The development direction of micro injection molding machine mainly includes the structure optimization of micro injection molding machine, the improvement of micro injection molding machine control technology, the improvement of injection and molding precision, and strives to achieve a higher degree of automation and intelligence in the production process.
Finally, allow me to introduce our factory, a leading manufacturer specializing in injection molding machine, Injection molds, and Injection Molding Auxiliary Equipment.
Our Injection Molding Machine is designed for precision and efficiency. Coupled with our Auxiliary machine , Injection Machine Electric Motor, Injection Machine Nozzle . They enhance the overall performance of the molding process. Additionally, our Injection Mold is precision-crafted to ensure consistency and accuracy in the finished products.
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