Spritzgussabfall

Spritzgussabfall refers to waste material generated during the injection molding process. This can include runners, sprues, rejected parts, and purging material used to clean the injection molding machine. Runners and sprues are the channels that guide molten plastic from the nozzle to the mold cavities. Rejected parts may arise from defects such as short shots, sink marks, flash, or warpage. Purging material is the plastic expelled from the machine barrel during color or material changes.

The management of Spritzgussabfall is an important aspect of sustainable manufacturing. Many types of Spritzgussabfall can be recycled, either internally within the injection molding facility or externally by specialized recycling companies. Internal recycling typically involves regrinding runners, sprues, and some rejected parts for reintroduction into the production process. This reduces material costs and minimizes waste sent to landfills. However, the quality of reground material can be affected by degradation during processing, limiting its use in certain applications.

External recycling involves collecting and processing a wider range of Spritzgussabfall, often separating different plastic types for specialized recycling methods. The economic viability of recycling depends on factors such as the type of plastic, the volume of waste, and the cost of virgin material. Reducing Spritzgussabfall at the source through process optimization, improved mold design, and skilled operation is also a key strategy for minimizing environmental impact and improving efficiency in the injection molding industry.