The vacuum casting process draws vacuum on the mold before the air-free metered and mixed material is dispensed into the mold. The resin materials are vacuum degassed in the vacuum casting machine’s supply tanks. The air-free mixed material is dispensed into equally air-free, open or closed molds from the top or the bottom, while the mold is maintained under constant vacuum.
Products Manufactured — with this application:
- High-Voltage Ignition Coils
- Magnetic Resonance Imaging (MRI) Coils
- Current Transformers
- Voltage Transformers
Reactive Thermoset Resins Processed - (Epoxies, Polyurethanes, Polyesters, Vinyl Esters, Silicones and Polyimids):
- Abrasive-Filled and Unfilled, Reactive Thermoset Resins
- With or without aluminum oxide, silica sand or glass powder fillers.
- With or without solid or hollow microspheres.
- 2 to 8 – Metered Components
- Heated or Room-Temperature Formulations
Industries Using These Resin Dispensing Machine Processes:
- Wind Energy
- Electrical
- Electric Power Transmission
- Medical
- Oil Drilling
Each of these DeSantis Mechatronics Dispensing Systems optionally include:
- Manual or Continuous-Flow Vacuum Chambers
- Programmed PLC or PC-Controllers with Touchscreen Interface
- Digital User-Presets for Ratio, Shot-Size, Output-Rate, Temperatures, Vacuum Levels and Mixer Speed.
- Batch Material Preparation Tanks – apply heat, agitation and vacuum to the materials in batches
- or Continuous Thin Film Degassers – heat, agitate and degas materials on-the-fly.
- Vacuum Control System – for precise vacuum level control in the degassing tanks and in the vacuum chamber.
- Rotary Gear Metering Pumps or Piston Metering Pumps
- Digital, Servomotor Drives for the Metering Pumps or Wedge-Driven Piston Metering Pumps
- Mass Flowmeters or Mechanical Flow Meters
- Static or Dynamic Mixers
- Purge Systems
- Data Logger
- Vacuum Pumps