RHEOGRAPH Add-On

Add-on for Capillary Rheometer

With various add-ons to the capillary rheometer, GOETTFERT offers a modular platform for advanced material characterization.

 

Shark-Skin
  • Measuring cell for detection of the Shark-Skin effect
  • Consisting of slit die, 3 new designed and higher frequented sensors (sample rate up to 20 kHz),as well as Software package
  • Determination of the frequency spectrum and the statistical evaluation of the pressure signal
  • Used for optimization in extrusion, film- and coating process
Thermal conductivity
  • Measurement of heat conductivity
  • Temperature range up to 450°C, pressure up to 1000 bar
  • Developed according to ASTM D5930
  • Test probe with integrated heater element and temperature sensor
  • No mechanical changeover required
  • Process simulation and optimization of injection molding cycle times
  • Also with automated sequence control possible
PVT (Isothermal / isobaric)
  • Measurement according to ISO 17744
  • Determination of characteristics Pressure,
  • Volume and Temperature Measurements isobar and isotherm
  • Variable test sample volume
  • Easy handling with quick die locking system
  • Presentation of a PVT diagram
  • Optimizing of the flow and shrinkage behaviour during injection molding
  • Also with automated sequence control possible
Elongation (Rheotens / Haul-Off)
  • Two different systems for elongation measurements (Rheotens and HAUL-OFF))
  • Determination of the dynamic and static die swell Analysis of swell profile (BASELL method)
  • Swivel arm with stepless height adjusting
  • Standard resolution with 7 μm (micrometer) or with the high resolution system 0.1 μm
  • Optional with melt cutting system
  • Application: Simulation of the material swell behaviour during injection molding
Die swell measurement
  • Determination of the dynamic and static die swell
  • Analysis of swell profile (BASELL method)
  • Swivel arm with stepless height adjusting
  • Standard resolution with 7 μm (micrometer) or with the high resolution system 0.1 μm
  • Optional with melt cutting system
  • Application: Simulation of the material swell behaviour during injection molding
Counter pressure chamber
  • Determination of the pressure coefficient
  • Determination of the critical wall shear stress for wall slip
  • Maximum mean pressure (Pm) 1200 bar
  • Temperature range up to 400 °C
  • Optimization of the flow process in converting machinery
    (injection molding, extrusion tools with long flow paths, melt pumps)
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