Closed-mold injection is a process where the degassed, metered and mixed materials are typically injected into the mold with positive pressure from the bottom, up. The air-free mixed material rises up inside the closed mold, forcing air that is on top of the resin out of the mold through top-side vent holes. Closed mold injection is sometimes combined with spin casting or compression molding.
Products Manufactured — with this application:
- Paper-Making & Printing Rolls
- Torpedo Nose Cones
- Missile Silo Pads
- Pump Impellers
- Hydraulic Seals
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:
- Printing
- Marine
- Medical
- Automotive
- Aerospace
- Industrial
Each of these DeSantis Mechatronics Dispensing Systems optionally include:
- 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.
- 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 Loggers
- Color Metering Systems
- Vacuum Pumps