compomix DI: dispensing system for composites processing

DOPAG developed the compomix DI specifically for use in infusion processes in the production of rotor blades for wind power generators. The metering and mixing system can be used for direct infusion process and with vacuum bag infu- sion process with Infusion-Stations located up to 70 m from the machine with a deviation of less than ± 1 % of the mixing ratio. Depending on the system configuration, magnetically-coupled, leakage-free pumps that are hermetically sealed at the drive end are used to feed hygroscopic hardeners. The metering system range for the processing of unfilled infusion resins combines highly accurate metering pumps with extremely fast control technology. Metering is carried out from a regulated by-pass so that the normal initial process of filling the mixing tube is avoided and the long distance between metering and mixing point does not impact the mixing ratio. In addition, the output rate can be changed during the meter- ing process at pre-defined levels – without exceeding the permitted tolerance limits of the metering ratio.

Up to 6 Infusion-Stations can be added, working sequentially with individual programs according to infusion point re- quirement. The Infusion-Stations come with customer developed electronic valve module for pressure regulation of A and B, mixing station and scale module suitable to place vacuum bags. Each Infusion-Station can be configured individ- ually in terms of intelligent adapted filling rate and shot size according to actual infusions process status.