Special technologies
Internal gas pressure process
The internal gas pressure process enables the production of high-quality molded parts with cavities without sink marks. The gas is pressed into the interior of the melt as holding pressure during cooling, so that a cavity is formed. This results in low-warpage, stable components with low weights.
More advantages:
- Less weight
- Reduction of cooling time
- High rigidity
- Low warpage
![PC Teile im Gasinnendruckverfahren](https://i0.wp.com/www.hugo-ackermann.de/wp-content/uploads/2021/02/PC-Teile-im-Gasinnendruckverfahren-scaled.jpg?resize=1080%2C460&ssl=1)
Core-melting process
Wherever cavities in injection-molded parts are so complex that they can no longer be demolded conventionally, the fusible core technology offers itself as a problem solver. With complex inner contours, such as B. Impellers with flow-optimized blades, we use multi-part melt cores that are inductively melted out after manufacture.
Examples of the procedural steps for manufacturing articles with cavities:
![kernausschmelz2-191-3](https://i0.wp.com/www.hugo-ackermann.de/wp-content/uploads/2021/02/kernausschmelz2-191-3.jpg?resize=750%2C191&ssl=1)
![Laufrad aus PP GF im Kernausschmelzverfahren](https://i0.wp.com/www.hugo-ackermann.de/wp-content/uploads/2021/02/Laufrad-aus-PP-GF-im-Kernausschmelzverfahren-1-scaled.jpg?resize=1080%2C636&ssl=1)