The viscosity of PLA is low, so the injection pressure does not need to be particularly high, and it is usually competent within 54Pa;

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Since the crystallinity of PLA is very low and the melt strength is very small, it is required to be cooled using a mold temperature of 20-30 ° C. The mold must be equipped with a liquid cooling system to ensure that the mold temperature does not rise with the influence of the injection temperature;

The thickness of the product design is controlled within 4mm. The core, cavity or front and back stencils and sliders of the mold must be cooled by liquid to control the mold temperature;

Generally, multi-stage plasticizing temperature control is adopted, the feeding section is 180 ° C, the compression section is 190 ° C, the melting section is 200 ° C, the metering section is 200 ° C, and the nozzle is 190 ° C. The multi-stage control is beneficial to completely plasticizing without causing burns to the melt;

As a renewable and inexhaustible new raw material, corn plastic has an extraordinary significance in the history of plastics development. Increasing the development and application of PLA is conducive to the health and sustainable development of the injection molding industry. The exploration of the injection molding process for PLA is also an important task.

Depending on the product, the screw speed is selected between 20-100 rpm, and normal injection does not require excessive speed;

PLA is dehydrated and polymerized from lactic acid. The stability of water is poor, and moisture causes lactic acid bond breakage. Therefore, it is necessary to sufficiently dry the raw material and control the humidity to 0.025% or less. Generally, it is vacuum dried for 2-3 hours under air humidity of 80 ° C, and needs to be sealed after drying;

We accept small batch custom molding services (Both thermoset and thermoform plastic). We CNC prototype, mold design, injection, silkscreen, engraver, assembly and packing as a whole.