Then open the bleed screw until the material escapes without bubbles. Put a hose on the cartridge adapter and apply pre-pressure to the material. This is facilitated by the preeflow cartridge adapter. When changing a cartridge, we also recommend bleeding the system. Now continue dosing with the dispenser until the material in the hose emerges without visible bubbles. Tip: An attached hose enables a clean procedure.Īpply pressure to the material and start the drive unit. If possible, move the dispenser to a position where the end piece is pointing upwards to facilitate the air escape. This can be a cartridge or a supply line coming from a pressure tank, for example. Since our dispensing systems do not produce air inclusions, it is important to bleed the dispenser according to the operation and maintenance instructions.ĭuring initial commissioning or after complete cleaning of an eco-PEN, the air in the dispenser or in the conveying line must be removed.Ĭonnect the dispenser to the material supply. The material can also be degassed inline with product solutions from ViscoTec, such as ViscoTreatįirst, the dispenser must be vented properly so that no air is transported To avoid air inclusions, appropriate material treatments can be applied upstream, such as degassing a cartridge with a centrifuge. The required adhesive, sealing or protective effect of the applied material can be reduced by these air inclusions which means that they must be avoided completely. Process accuracy and repeatability are two of the most important aspects of the automated manufacturing process.ĭuring commissioning, container changes or after cleaning, air can enter the system and reduce the quality of the dispensing result.
#Scan master aor how to#
With our dispensing tip, we will help you to understand why air inclusions can occur in dispensing or potting processes, what consequences they have and how to avoid them. Improvement of the dispensing quality by avoiding air inclusions