【 Abstract 】

Driven by the wave of enterprise research and development, many new products have emerged in the injection molding machine market.

The all-electric injection molding machine is one of the products of innovative technology. It maintains a low rotational speed under pressure-holding,

cooling and idling conditions to achieve energy conservation and noise reduction, but its service life is relatively short.

What has brought a greater impact to the traditional hydraulic injection molding machine market is the electric-hydraulic injection molding machine that integrates hydraulic and electric drive. It integrates the high performance of fully hydraulic injection molding machines with the energy-saving advantages of fully electric ones, which can enhance the efficiency of the power drive system, reduce energy loss, and accelerate the development and application of energy-saving technologies for hydraulic injection molding machines. The principle of energy-saving injection molding

Driven by the wave of enterprise research and development, many new products have emerged in the injection molding machine market.

The all-electric injection molding machine is one of the products of innovative technology. It maintains a low rotational speed under pressure-holding,

cooling and idling conditions to achieve energy conservation and noise reduction, but its service life is relatively short. What has brought a

greater impact to the traditional hydraulic injection molding machine market is the electric-hydraulic injection molding machine that integrates hydraulic

and electric drive. It integrates the high performance of fully hydraulic injection molding machines with the energy-saving advantages of fully electric ones,

which can enhance the efficiency of the power drive system, reduce energy loss, and accelerate the development and application of energy-saving

technologies for hydraulic injection molding machines.

Innovating the principle of energy-saving injection molding is also one of the important ways to promote energy conservation of injection molding

machines. For instance, Ningbo Haihang Plastic Machinery Manufacturing Co., Ltd. has adopted the energy-saving injection molding

principle of low-pressure high-speed hot runner outside the mold for large injection molded parts and developed a 50-kilogram super-large

energy-saving injection molding machine. The loading power of the hydraulic power system is only 37 kilowatts, which is 1/7 to 1/6 of that of a common horizontal

injection molding machine of the same specification. The total loading power of the entire machine is only 192 kilowatts.