Several methods for precision molding of plastic parts

High processing accuracy of the plastic part itself;

Typical micro-components usually have high-precision requirements, both microinjection and micro-extrusion;

Molding of microstructures of larger size products, typical microstructure molding;

High-size products have high requirements on machining accuracy and installation accuracy;

The relatively high precision of large parts, usually judged by the order of a few thousandths;

Matching precision between parts with matching requirements;

High requirements for the surface quality of plastic parts;

Deformation-related precision factors are represented by the control of shape tolerances;

Typical influencing factors of the precision forming process:

Performance stability of the material;

High precision of the machine itself;

Selection and control of processing technology: in addition to reasonable process selection, pressure control accuracy, temperature control accuracy, injection position accuracy, etc.;

High precision control during processing, such as weight control, thickness control, pipe diameter control, etc.

environmental impact;

Artificial factors;

The benefits of precision molding:

High-precision production can reduce material waste and additional energy loss, and reduce production costs; in particular, it can control stable production within a low tolerance range;

The high precision contributes to the quality of the product; high precision helps to maintain the consistency of the product quality, and the assembly performance of the product is better;

High precision contributes to the performance of the equipment; precision machining usually means excellent process stability during processing, which is more conducive to the maintenance of equipment performance;

High-precision contribution to the on-site environment; reduction of waste or subsequent processing, sorting workload;

Accuracy contributes to workers and reduces follow-up workload;

The contribution of precision to the industry is conducive to the promotion of industry brands and influence;

Some effective ways to achieve precision molding:

High dimensionally stable material;

Special precision machining techniques and processes;

Low stress structural design;

New mold technology application;

With the contour cooling technology, the contour cooling can not only improve the surface quality, but also prevent the weld marks, and also help to ensure the accuracy of the product and prevent the internal stress from being generated;

Auxiliary molding technology, gas-assisted, liquid-assisted molding technology;

Control technology compensation, especially in the field of high performance and high precision product molding.