Precision injection molding is a highly technical process that requires the use of precision molds and machines. Precision molding process is different from traditional injection molding technology. This process is necessary for developing precision plastic parts with complex geometric shapes, which can replace high-precision metal parts in various industrial applications.

The accuracy of parts largely depends on precision injection molds and their suitability to meet the engineering requirements of the design.

The accuracy of molds is the result of multiple factors, including

Precision of cavity dimensions

Accurate location of the cavity

Precision of parting surface

Material selection

Dimensional tolerances for general precision molds

The number of cavities in mold design

Thickness of bottom plate, support plate, and cavity wall

Precision mold material (preferably alloy steel with high mechanical strength)

Design Engineering

How does precision molding work?

The process of shaping plastics into special prices and calculated shapes through CNC machining is called polymer optics.

With the development of technology in terms of precision and complexity, the world requires increasingly complex processes to mold plastics into specific shapes for professional industries such as automotive, pharmaceutical, medical equipment, information technology, and other service industries.

Here are some additional tips from the molding consultant regarding precision molding.

This process is beneficial because it is more economically feasible.

This process is also a new and greatly enhanced solution for optical problems that arise in the contract manufacturing and scientific shaping of technological products.

Customized injection molding process is not an appropriate method for developing optical components required for various high-precision products. Precision injection molding technology allows manufacturers to customize processes to meet the needs of molded products.

The resulting research and development have led to precision injection molding (PIM) technology, which will enable molding companies to develop plastic equipment at an affordable price, but with very high quality control and precision.

Polymer optical devices in precision injection molding are the key to developing high-precision molds, endowing the plastic injection molding development process with various unique advantages.

Choose precision machinery

Precision molding machines are preferably high-pressure. This helps to improve the quality and overall accuracy of plastic parts. The injection pressure of approximately 392 MPa reduces the shrinkage coefficient to zero. In addition, when the injection pressure is maintained at around 392 MPa, the mechanical strength of the parts is significantly improved.

In addition, as the maximum injection pressure increases, the efficiency of the injection rate improves.

The following are the main structural characteristics of precision molding machines:

The stiffness of the clamping system - the dynamic and fixed templates are controlled between 0.05-0.08mm

Dimensional tolerance of parts

Mold speed (open and close)

Plasticized components - including screws, screw heads, barrels, check loops, etc.

In addition, precision molding machines should be able to manage the repeatability and accuracy of products.

If you would like more information about the best precision molding, please feel free to contact us today or request a quote.