DuroSet Technology
Thermoset processing - Perfectly cross-linked
Product information
With the DuroSet process, KraussMaffei helps you to produce high-quality, dimensionally stable components from free-flowing molding compounds. Injection molding machines are used that have a plasticizing system with mechanical back-twist lock. This ensures constant shot weights and high reproducibility.
In contrast to thermoplastics, thermosets cannot be re-melted. Thermosets react irreversibly when heat is applied in a hot mold. Adapted machines and processes are required to process these reactive molding compounds. Even the condition of the raw materials differs significantly from the granulates commonly used for thermoplastics.
The processing parameters also differ greatly from the usual values for thermoplastics. For example, the tools are usually electrically heated to 150 - 200 °C, while the plasticized parts are tempered or cooled with water or heat transfer oil.
- Optimized and highly wear-resistant screws for gentle fibre processing
- Highest process stability with APCplus for outstanding productivity
- Flexible conversion from thermoplastic to thermoset processing
- Reproducible and gentle processing of challenging reactive materials
- DuroSet units for largest shot weights
- Strong network and expertise for processing reactive molding compounds
Machine
- Robust two-platen technology for high process consistency
- The standard machine function of active venting prevents air pockets in the molded part.
- Linear guides and tie bars are protected from burrs, glass fibers, and material dust by Viton wipers.
- Robust and wear-resistant thermoset screw for processing materials with up to 85% mineral filler content.
- Precise temperature control of the material feed and plasticizing cylinder with temperature control devices to prevent premature cross-linking reactions
- Mechanical screw reverse rotation lock prevents pressure-driven backflow of the mass
- Wide range of equipment options
- Customized embossing functions available
- Tool heating with high heating power of up to 7 kW as standard and heating circuit monitoring available
