Acrolab’s trademarked ISOMANDREL® is an enhanced mandrel which can replace your current mandrels. This exclusive technology is demonstration of an internal process, within the mandrel, which enhances its thermal conductivity and thermal reactivity. The process permits heat to be applied in a localized concentration that is then rapidly and homogeneously redistributed over the complete mandrel working surface.
ISOMANDREL® Technology removes the need for cure ovens by permitting the curing of filament wound pipe and tube sections by heating the mandrel uniformly while rotating, using induction heating.
ISOMANDRELS® redistribute high thermal energy uniformly over the entire mandrel surface as well as providing predictable and consistent energy input into the part during the filament winding or laying process. The result is a completed cure in a shorter time with less energy expenditure, all the while providing a much more uniform and consistent cure and resin rich surface on the internal diameter of the cylinder/wind.
ISOMANDRELS® are typically heated at one end only. The heat source is usually away from the part area of the mandrel. Heat is applied to this area and instantly redistributed to the entire length of the ISOMANDREL®. This heating can occur during winding or after. This gives the user the freedom to cure while winding or on a separate station. While you can utilize your current oven, your oven is no longer required to cure!
Various types of mandrel materials can be used. Typically a material such as monel or stainless steel is utilized.
Many types of heat sources can be utilized. Typically electric resistive heaters or induction heat is used.
Cooling can be integrated if required. Cooling type depends on the Isomandrel® design. Water can be utilized as of option for a cooling source.
Typically an IR style sensor is used to monitor temperatures
ISOMANDRELS® can also be used in heated rollers. When used in heated roll applications, ISOMANDRELS® deliver a more predictable and homogeneous temperature over the entire working surface of the roll, resulting in higher thermal recovery speeds and therefore greater line speed.
Thermal Image Shows ISOMANDREL® Uniformity With An Induction Coil (left) On Only 4″ Of the Isomandrel