Kr
Coating Weight
Measuring System
Coating Weight
Measuring System
The Kr Coating Weight Measuring System is used for continuous, non-contact measurement of coating layers using the isotope-based backscatter method.
The number of measuring heads required depends on the type of application (wet or dry).
The traversing measuring system measures the individual coat layers (primer & finisher) over the entire strip width.
To this end, the characteristic properties of different types of coating can be stored in a database.
coat thickness measurement
quality control
coating database
optional:
coat layer control
Special Features
- quick and accurate measurements
- high reproducibility of measured values
- modular measuring head
- low maintenance costs
- highest availability
- fast return of investment
- savings in production costs (lower paint consumption)
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KR
Coating Weight
Measuring System
Coating Weight
Measuring System
Technical Information
Material data (typical for Aluminium Cold Rolling Mills)
Carrier material:
aluminium
Thickness carrier material (aluminium):
0.2 up to 3 mm
Width:
600 up to 2,100 mm
Coating material:
lacquers (epoxy, acryd, acrylate, acrylic, polyester, polyurethane, HDP, PVDF, plastisol, clear lacquers)
Typical coating area:
5.0 – 400.0 μm (dry)
Measurement system data
Gauge type:
traverse with one measuring head (traversing)
Radiation Source:
Kr-85 spotlight activity from 7.4 GBq
Detector type:
KG 90
Measurement spot size:
Ø 120 mm
Typical working distance:
approx. 30 mm
Traversing speed:
0.5 up to 8 m/min
Measuring dynamics
Sampling rate transmitter:
10 ms
Measuring time constant (analogue) TCA:
200 ms
Total time constant:
10 ms
Measured value output and processing:
200 – 2,000 ms (adjustable)
Measuring accuracy (2 sigma values)
Short-term drift, 4h (IEC 61336):
< ± 0.2%, not better than < ± 0.1μm
Reproducibility:
5 – 25 μm coating thickness < ± 0.3 μm
25 – 50 μm coating thickness < ± 0.5 μm
50 – 100 μm coating thickness < ± 1.0 μm
100 – 200 μm coating thickness < ±2.0 μm
200 -400 μm coating thickness < ± 4.0 μm
Statistical noise (2σ) :
(effective time constant)
TCE = 2.000 ms, TCE=TCA+TCD)
5 – 25 μm coating thickness < ± 0.1 μm
25 – 50 μm coating thickness < ± 0.2 μm
50-100 μm coating thickness < ± 1.0 μm
at 100.0 – 200.0 μm coating thickness
at 200.0 – 400.0 μm coating thickness
Measure.Inspect.Detect.
Product Catalogue for Aluminium Rolling Mills
- Learn more about the product portfolio of our high-precision measuring systems for aluminium hot strip rolling mills and cold strip rolling mills
- Standard systems for measurement and detection of slab dimension, thickness, thickness profile, length, width, temperature, speed, 2D surface inspection as well as various special systems
- Special designs possible on customer request
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