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Requirements for high-speed injection molding machines for thin-walled products

Update:22-07-2020
Summary:

The requirements of injection molding machines for the […]

The requirements of injection molding machines for the production of small and light parts have made thin-wall injection molding machines the required performance for injection molding machines. "Thin wall" is generally defined by lightweight electronic device parts with a wall thickness of less than 1mm. For car parts, "thin" can be 3mm. All in all, thin-walled products require changing the manufacturing process; higher pressure and speed, shorter refrigeration time, and changing the order of injection and glue inlets of the parts. The changes in the production process have promoted the development trend of abrasive tools, equipment and production design schemes. Below is a detailed introduction to the thin-walled injection molding machine, thin-walled product, and high-speed injection molding machine requirements.

 

High-speed injection molding machines can be used to produce a variety of thin-walled products. At this stage, the performance of the new injection molding machine is greatly improved ten years ago. The development of raw materials, the technology of the glue inlet and its design scheme have further broadened the filling performance of standard high-speed machines for thin-walled parts. However, because of the continuous decrease in thickness, a newer injection molding machine with high-speed and high-pressure performance. For example, for an electronic device with a thickness of less than millimeters, it is normal for the filling time to be less than 0.5 seconds and the injection pressure to be 210MPA.

The design plan is the hydraulic high-speed injection molding machine design plan for the thin-walled injection molding machine. All-electric injection molding machines and electric and hydraulic injection molding machines with high-speed and high-pressure performance are also available. In order to withstand the high pressure of the new injection molding machine, the value of the clamping force must be 5-7 tons/foot (expanded area). In addition, when the wall thickness reduces the working pressure of injection molding, the medium and large template will help reduce bending. The ratio of the support rod of the injection molding machine for thin-walled products to the thickness of the template is 2:1 or lower. When manufacturing thin-walled products, the closed-loop control system of injection rate, working pressure and other production and processing parameters is conducive to filling and curing under high pressure and high speed.

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