1. Furnace Rheometer System FRS 1600

2. Cooling Concept of the Air Bearing DSR 301
Side view rheometer part
Top view rheometer part
Rheometer head DSR
Air and water cooled rheometer head fixture
Air cooled coupling
Heat shield
Head mounting bracket is cooled with water from the VT2 Thermostate. The coupling agent is cooled with air, also the DSR is cooled with little nozzles on the upper side of the fixture.
(Fluid circulator VT2 running at 20 °C required)
Specifications DSR:
Max. torque
200 mNm
Min. torque
0.05 µNm
Max. speed with FRS
300 1/min
Normal force range
0.01 to50 N

3. The Furnace : Carbolite STF 16/180
The temperature control unit
Working Tube
X-Axis Movement
(vertical)
Temp. Display
Power Cable
Work Tube is protecting the heating rods and allows a constant inert gas flow. Work tube is a spare part, is easy to change.
Specifications Furnace:
Max. Temperature
1600°C
Min. Temperature
300°C
Inert Gas
e.g.: Ar, N2
Specifications Control Unit:
Power Connection
380V, 21A
Heating
Pulsed Current
Connection to DSR
Serial

4. Preparation and Measurement of the Sample
All you have to do is…
Reference position, cleaning
Measuring position by NF control, start measurement
Sample heating, melting
Lift position (NF control)
Set zero gap
Lift position
Sample filling

5. Vertical Movement Concept
Reference position for cooling and cleaning
Pneumatic lift up to final cup position
Pneumatic lift down to heating position
Heating position
Measuring position
Normal force controlled final positioning by stepper motor driven elevating thread
Furnace moved to park position

6. Overall View Furnace Temperature range 300°C to 1600°C
Temperature control
Eurotherm
Total lenght heat tube
600 mm
Heated lenght heat tube
180 mm
Constant temperature
80 mm
Rheometer Head
DSR measuring head
Air bearing
Test modes
Rotation and oscillation
Software controls instrument and furnace
Water measurement at 20 °C
From very low rotating speeds up to 300 1/s
Regarding the 300 mm shaft perfect concentricity and measurement results.

7. Measuring Systems for high Viscosity Samples as e. g
Measuring Systems for high Viscosity Samples as e.g. Glass melts, Lava, Basalts
Cup:
Cups for powders and bulk goods
(Larger volume in a non-molten state)
C-CC Cup-Conc. Cylinder xx Inner Diameter in mm AO Aluminum oxide CA Carbon
FRS for FRS
C-CC30/AO/FRS d(i): 30 mm, d(o): 40 mm h(i): 60 mm
C-CC30/CA/FRS d(i): 30 mm, d(o): 40 mm h(i): 60 mm
Bob:
D-CC Disposable-Conc. Cylinder xx Inner diameter in mm AO Aluminum oxide CA Carbon
FRS for FRS
C-CC30/CA/FRS/XL
C-CC30/OA/FRS/XL
d(i): 30 mm, d(o): 40 mm h(i): 80 mm
C-CC30/CA/FRS/XL
C-CC30/OA/FRS/XL
d(i): 30 mm, d(o): 40 mm h(i): 80 mm
C-CC30/CA/FRS/XL
C-CC30/OA/FRS/XL
d(i): 30 mm, d(o): 40 mm h(i): 80 mm
D-CC11/AO/FRS d: 11.4 mm L: 30 mm
D-CC11/CA/FRS d: 11.4 mm L: 30 mm
D-CC15/AO/FRS d: 15 mm L: 20 mm
D-CC15/CA/FRS d: 15 mm L: 20 mm
Other materials and dimensions on request.

8. Standard Measuring Systems for low Viscosity Samples as e. g
Standard Measuring Systems for low Viscosity Samples as e.g. Metal Melts
Bob:
D-CC Disposable-Conc. Cylinder xx Inner cylinder diameter in mm AO Aluminum oxide
CA Carbone
FRS for FRS
D-CC27.6/AO/FRS d: 27.6 mm L: 41.4 mm
D-CC25/CA/FRS d: 25 mm L: 37.5 mm
D-CC27/CA/FRS d: mm L: 40 mm
D-CC27.6/CA/FRS d: 27.6 mm L: 41.4 mm
D-CC29/CA/FRS d: 29 mm L: 41.4 mm
Other materials and dimensions on request.

9. Applications, Impressions and Standards
Possible applications:
metal melts
glass melts
coal ash, slags
lava, basalte, rocks
(Withdrawn 2009)
( )

10. Metal (1)
The FRS is the only reasonable decision for metal melts, because of the low viscosities which can
only be measured with an air bearing rheometer
Potential costumers:
Universities and other research centres
Metal industry:
Steel and Iron (melting points: ~1510 °C and 1530 °C )
Copper (melting point: 1083 °C )
Silicium (melting point: 1410 °C)
Cross-selling potential: CTD 600 and CTD 1000 (e.g. for Aluminium or Zinc and other lower melting materials)
Until now, metal melts are measured with so called Oscillating Vessel Viscometers and Flow Cups (assuming Newtonian behaviour)

11. Metal (2): Measurements
Argumentation and explanation:
Based on the latest scientific findings some metal and alloy melts exhibit non-Newtonian flow behaviour
This is a fundamental finding, as most theories and all measuring techniques are based on the assumption that metal and alloy melts are Newtonian liquids
Until now this effect could not be measured with competitor instruments, as they are all based on ball bearing rheometer heads
This effect has not only an impact on academia, but also on the metal processing industry. For example during the casting process a wide spectrum of shear rates can be observed, so the exact flow curve needs to be determined
Figure: Quadruple repetition of steel measurements at 1537 °C - Please note the non-Newtonian behaviour!

12. Glass (1) The FRS delivers great results measuring glasses
Potential costumers:
Universities and other research centres
Industry: Development of special glasses (standard glasses don’t need to be measured anymore, as their viscosity can be calculated by equations, if the exact chemical composition is known)

13. Glass (2): Measurements
Argumentation and explanation:
Glass is a Newtonian liquid
The viscosities at different temperatures are from interested
Glass standards are available to conform the validity of the measurements
The FRS can measure glass according to the following standards:
ASTM C1276 (withdrawn)
ASTM C965
With the FRS one can determine the following additional parameters:
Crystallisation point
Melting point
Figure: Viscosity curve of two different glasses during cooling

14. Slags and coal ash (1)
The FRS can be used to measure slags and coal ash to determine their properties for their further processing
Potential costumers:
Universities and other research centres
Industry:
Slag:
By-product of the iron und steel production
Range of application: Additives for cement, street building, glass industry, brigs, fire proved materials, isolation materials….
Coal Ash:
By-product of coal combustion (e.g. for Power generation or other industrial applications)
Range of application: e.g. Alternative to cement, usage in brigs, asphalt, flow able film shingles – building material for monuments (e.g. freedom tower NY-city)….

15. Slags an coal ash (2): Measurements
Argumentation and explanation:
Good and reliable results for slag and coal ash
Slag or coal ash is sometimes “splashing” and “bubbling” – the advantage of our instrument is that we are operating in a working tube as protection for the heating elements
The working tube also protects the heating elements from corrosive gases released by the sample, that may cause severe damage
Figure: Viscosity curve of coal ash at 1400 °C

16. Conclusion and features (1)
High safety, reliability and quality (of the instrument and the results)
Large shear rate range because of the air bearing
Normal force control: Sample shrinkage or expansion is recognized and measured by the normal force sensor. With this function the melting point can be determined
Toolmaster: DSR employs ToolmasterTM functionality.
Oscillation measurements are possible
Measurement of non-Newtonian material down to very low viscosities possible
Operation in a working tube – to handle even splashing and bubbling materials

17. Conclusion and features (2)
Easy and safe handling (CE certified)
Measurement according to the following standards:
ASTM C1276 (withdrawn)
ASTM C965
Disposable measuring systems (for saving time -> no cleaning is required and for solidification experiments)
Temperature sensor / Temperature calibration: The FRS comes with a factory temperature calibration. The instrument sets the furnace temperature according to the calibration. The software displays the sample temperature
AGC coefficient: The length change due to temperature of the measuring system is automatically compensated by the AGC function

18. How to sell an FRS?
Look out for potential costumers (according to the applications mentioned before) in your region
Address them before their budget run
Look for information material like application reports in the extranet or ask for reference measurements and additional information. We are constantly adding new application reports and marketing material
Try to influence tenders according to our features and strengths and prepare yourself with arguments to explain the price differences to the competitors
Demos, installations and the costumer support is handled in teamwork with Graz (Peter Brandes and Elke Riedl)
Please update us about your FRS opportunities and give us your and the costumers feedback about the FRS. Your opinion and your information are very valuable for us

19. Chances
One FRS project generates the turnover of two to three MCR projects
If the customer is really interested there is a good chance to sell a FRS
The FRS ensures safe operation and high quality (also in comparison to the competitors, a list will be handed out to all participants)
You will get all the support you need from Graz – together we can win more projects
Our team here in Graz is going to build up collaborations and further application knowledge in the high temperature rheometry area – be part of it!