Material Preparation and Feeding
19Pages

SCHEUGENPFLUG AG METERING AND DISPENSING TECHNOLOGY Material Preparation and Feeding Process reliability – also means Correctly Preparing and Conveying Material The growing demands on electronic components in nearly every sector call for ever more specific casting resins. These, in turn, place new demands on preparation and feeding units. Consistent feeding of a completely homogenous, bubble-free dispensing medium – essential to obtain the required component function and reliability – can be achieved only with a perfect preparation and durable feeding system. A dispensing systemsee page 27 is only ever as good as the material feeding system, together with which it forms the process. In material preparation and feeding, the cause and effect of various aspects must be considered. These include viscosity see page 17, tempering see page 18, sedimentation see page 19 and the avoidance of air bubbles see page 19, optionally using vacuum see pages 19/23. With rugged, durable feed pumps, sophisticated pressure and vacuum controllers and features such as self-calibrating filling level sensors, powerful process monitoring and comprehensive analysis functions, modern systems ensure the required process reliability. An advanced preparation and feeding system can even compensate interruptions, breaks and errors during dispensing or in downstream production steps without compromising quality. (The page references refer to the general catalogue.) When processed in a vacuum, moisture-sensitive dispensing media retain their full quality and functional properties. Heating maintains the dispensing material’s ideal processing characteristics even in production halls or sites without climate control. The Scheugenpflug material preparation and feeding systems offer a solution for all 1C and 2C dispensing materials with viscosities ranging from 50 to 1,000,000 mPa ∧ s and above. With these systems you are also well equipped for tomorrow’s casting resins.

Material Preparation and Feeding A310 ∧ Models A310 60/20 ∧ A310 TP20/TP05 ∧ A310 TP05/TP01 ∧ Optional Equipment A310 Barrel Agitator Station Material Feeding Units A220 / A280 ∧ Optional Features A220 / A280 ∧ Vacuum Barrel Follower Plate for A220 / A280 Material Feeding Units A90 ∧ A90 C ∧ A90 B ∧ A90 T ∧ Sample Applications

Homogenous and Bubble-Free – superior quality for Self-Levelling dispensing materials Preparation + Feeding The all-round system A310 simultaneously prepares and feeds the dispensing material, while temperature control helps optimise its viscosity. Evacuation removes any air trapped in the material already during preparation to ensure bubble-free dispensing. Circulation of the dispensing medium prevents sedimentation of filler materials to maintain the consistency of the dispensing material’s properties. The agitation and circulation intensity in these systems can be adapted to the...

The Cause-and-Effect Principle – Demonstrated Here on the A310 Filled material usually means high viscosity, abrasiveness and a risk of sedimentation. High viscosity requires heating. High abrasiveness requires a better protection against wear. Temperature control means accelerated sedimentation and deposits. Stirring the dispensing material, also during production breaks, prevents sedimentation of filler materials. This keeps the properties of the dispensing material components constant see page 19. Sedimentation requires stirring and circulation of the material. High risk of air bubbles...

Ideal for a High Throughput With 60 l and/or 20 l tanks and one or two 250 cm³ piston pumps per component, the A310 60/20 meets the requirements for higher preparation and feeding volumes. Hose line routing, rugged pumps and simple pump replacement reduce maintenance requirements. For the most demanding vacuum dispensing applications, such as ignition coil potting, fast degassing and a fine vacuum system are available. Optional equipment of the series: • Vacuum generated by rotary vane pump in the performance range from 5 mbar and less than 1 mbar final pressure • Material circulation •...

For materials that are too viscous to flow or fill the large 250 cm³ piston pump efficiently, the Top Pump version is the answer. Here the feed pump is integrated in the material tank. This configuration assists the pump in feeding the highly viscous dispensing material with its limited flowability into the dispenser after it has been evacuated or prepared. Also for lower preparation and feeding volumes, this model is a good choice. Optional equipment of the series: • Vacuum generated by rotary vane pump in the performance range up to 5 mbar final pressure • Material circulation • Correct...

Small Quantities and Highly Viscous Material For dispensing and/or providing only small quantities (for example highly sensitive and/or expensive dispensing materials), the model A310 TP05/TP01 is the right choice. Vacuum generation here is by a diaphragm pump; in every other respect the system has the same performance features and equipment options see page 45 as its bigger counterparts. Features of this model line: • Vacuum generated by diaphragm pump in the performance range up to 5 mbar final pressure • Material circulation • Correct heating of the material tank and of all machine parts...

Optimised Processes Preparation + Feeding Let's talk about your project: +49 9445 9564 ext. 0 vertrieb.de@scheugenpflug.de Pump heater Inspection glass and lighting Filling level sensor Vacuum pump Engineering Improvement (The page references refer to the general catalogue.)

Barrel Agitator Station Moisture and Bubbles in Large Drums – no longer an issue Barrel agitator stations are used in applications with a high material consumption and – in combination with the material preparation and feeding system A310 see page 41 – ensure a homogenous dispensing material with the right temperature. The electrically powered agitator station is equipped with a lifting unit, a filling level monitor and an optional vacuum controller and is ideally suited for stirring and heating liquid dispensing media. The 200 l barrel can be fully evacuated, allowing a comprehensive...