Plastic products are widely used in a wide variety of industrial activities and at the household level. The main advantage is lightness, practicality and ease of production. For serial production, special equipment is used with the ability to feed the molten mass into pre-prepared molds that completely follow the contours and geometry of the future product. You can get acquainted with their types on the website https://press-forma.rf manufacturer.
Features of the production of molds for injection molding of plastic products
Foundry production of parts, products or structural elements made of plastic under pressure is considered the most cost-effective, taking into account the complete mechanization of processes. The quality of the final product largely depends on the accuracy and reliability of the molds used for filling. The classic structural scheme includes:
- Matrix (volumetric stencil of the workpiece) - a fixed part.
- Punch - a movable part that exerts pressure on the poured plastic during its cooling.
The imprint-forming planes that come into direct contact with the molten mass must be made of materials that are resistant to temperature changes. Maintain geometry accuracy throughout the technological operation. To increase productivity, molds can be made to simultaneously mold several parts at once.
Manufacturing technology
Molds are made using provided drawings of the future part or sample. The material is studied: density, composition, melting point, hardening time. To obtain precise parameters, unique software is used with the ability to three-dimensionally model the shape.
For mass production, a test sample is made and tests are carried out. A batch of products is produced and an analysis of quality characteristics is performed: dimensional deviations, percentage of defects, flash. The mold is being finalized taking into account the identified comments. Along with the modified mold, the manufacturer is given a technological map indicating the temperature conditions of the work, the amount of pressure, the composition of the mass used and the timing of routine maintenance or replacement.
