April 2019 marks another breakthrough for carbon fiber spar caps produced in VAP® infusion
With the process development from COMPOSYST GmbH, a blade manufacturer in China successfully finished the production of an 87,5 m long carbon fiber spar cap, the longest and widest one made in infusion so far.
The spar cap was infused in VAP® technology with COMPOSYST’s VAP® membrane which enables degassing of the resin during the entire infusion and eases resin distribution throughout the entire part. Furthermore, the double-chamber system created by the VAP® infusion system makes it possible to precisely adjust the amount of resin allowed into the part. This fact, together with the characteristically homogeneous pressure distribution of a VAP® infusion, results in an accurately determined fiber volume fraction that is constant throughout the entire part length.
The infusion process itself took less than 2 hours – a record spar cap in record time! After demolding, all parties involved were pleased to inspect a spar cap of virtually perfect built quality.
At the end of the day, VAP® technology is reliable, easy to implement and made this challenging infusion possible whilst delivering a defect-free part.