Infrared Basics
and Technology
Infrared Basics
Heraeus Noblelight
The Electromagnetic Spectrum
Gammarays
X-rays
1pm
1nm
UV
INFRARED
(Heat)
380 -780nm
10m
Radio
Television
technology
1mm
1cm
10m
Radio
Telegraphy
broadcast
100m
1km
10km
100km
WAVELENGTH
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Page/ Seite 3
Heraeus Noblelight
Infrared Radiation
Infrared radiation
Sun
Infrared emitter
St t
Stratosphere
h
Earth
Electromagnetic
waves
Ai /
Air/vacuum
Product
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Heraeus Noblelight
Heat Transfer byy Different Systems
y
Convection
Conduction
Infrared Radiation
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Page/ Seite 5
Heraeus Noblelight
Heat Transfer byy Convection
Fan
Heating element
Air/gas
Material to be heated
Heat will be transferred by gas/air to warm up the material
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Page/ Seite 6
Heraeus Noblelight
Heat Transfer byy Conduction
Body with high temperature
Contact area
Material to be heated
Heat will be transferred through the material
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Page/ Seite 7
Heraeus Noblelight
Heat Transfer byy IR Radiation
Oscillation energy = function of temperature
Body with higher temperature = Emitter
Electromagnetic waves
Body with lower temperature
Excitation of atoms and molecules by electromagnetic waves
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Page/ Seite 8
Heraeus Noblelight
Infrared: Spectral
p
Radiation Distribution
Spectral Radiation Distribution
at the same electrical power
ratings
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Page/ Seite 9
Heraeus Noblelight
Infrared: Absorption, reflection and transmission
Reflection
Infrared Radiation
Absorption
Absorption
Transmission
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Page/ Seite 10
Infrared Technology
gy
Heraeus Noblelight
Design
g of a Quartz Glass Twin Tube IR Emitter
Gold Reflector
Quartz g
glass ~ 500 °C
Filament 600 - 2500 °C
Cross sections
a x b (mm)
Lengths
(mm)
• Variety of wave ranges
• Gold reflector for high efficiency
• High stability for long emitters
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Page/ Seite 12
Heraeus Noblelight
Transmission of Quartz Glass
Transsmission
n (%)
100
1mm
Thickness
10mm
20
0.2
0.25
0.3 1
2
3
4
5
Wavelength (µm)
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Page/ Seite 13
Heraeus Noblelight
Intensityy Distribution of IR Twin Tube Emitters
1 Emitter without Gold Reflector
2 Emitter with Gold Reflector
3 Emitter Location
4 Location off G
Gold Reflector
f
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Page/ Seite 14
Heraeus Noblelight
Design
g of a Quartz Glass Round Tube Emitter
Gold Reflector
Quartz glass ~ 500 °C
Filament max. 1200 °C
Diameter
d (mm)
Lengths
(mm)
19
1500
• Short reaction times (1-2 s)
• Gold reflector for high efficiency
• IR-spectrum matches to
many processes
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Page/ Seite 15
Heraeus Noblelight
Emitter system comparison
Infrared Emitters
Metal Emitter
Quartz glass
gold reflector
Short wave
Ceramic Emitter
Carbon
Medium wave
Medium wave
Long wave
Long wave
Base material
Carrier material
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Page/ Seite 16
Heraeus Noblelight
Design
g of Twin Tube Infrared Emitters
Two side connection
One side connection
A
C
B
D
E
F
G
H
K
J
L
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Page/ Seite 17
Heraeus Noblelight
Emitter installation: Distance to material
x
x
Infrared Emitters
Twin Tubes
y
x distance
emitter to emitter
y distance
di t
emitter to product
Product
y = 1.5 x
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Page/ Seite 18
Infrared Emitters
and Applications
Heraeus Noblelight
Infrared Emitters
InfraLight
round tube
Shortt Wave
Sh
W
twin tube
NIR
Fast response
medium Wave
twin
i tube
b
Carbon twin tube
Carbon round tube
Medium Wave
twin tube
UV
VIS
Infrared
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Page/ Seite 20
Heraeus Noblelight
Abssorption
Typical
yp
Absorption
p
Spectra
p
for Plastics
O,2 mm thickness
Wavelength
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Page/ Seite 21
Heraeus Noblelight
Absorption
p
Spectrum
p
of Water
Absorption
Short
wave
Water
SW 1,1
, µm
µ MW 2,4
, µm
µ
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Wavelength
Page/ Seite 22
Heraeus Noblelight
Coating
g
IR Emitters
E itt
Paints, adhesives
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Page/ Seite 23
Heraeus Noblelight
Laminating
IR Emitters
Paper, plastics, metal, textiles
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Page/ Seite 24
Heraeus Noblelight
Stretching
V = 1 m / min
IR Emitters
V = 20 m / min
Foil
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Page/ Seite 25
Heraeus Noblelight
Embossing
IR Emitters
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Page/ Seite 26
Heraeus Noblelight
NIR InfraLight Program
Short Wave and Halogen Emitters
Power
500 - 4000 W
Heated length
165 – 965 mm
Diameter
9 - 12 mm
Filament temp.
2300 - 2600 ° C
Peak Wavelength
g 1 – 1.1 µ
µm
Specials
Response time
Gold reflector
1s
more types on request !
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Page/ Seite 27
Heraeus Noblelight
InfraLight Short Wave Halogen Emitters
Applications in
Plastics Processing
Heating of PET preforms
for bottles p
prior to
stretch-blow molding
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Page/ Seite 28
Heraeus Noblelight
Short Wave Twin Tube IR Emitter
Power density
 200 W/cm
Max. heated length
6400 / 2400 mm
Cross section
34 x 14 / 23 x 11 mm
Filament temperature 1800 ° - 2400 °C
Peak Wavelength
1.0 - 1.4 µm
Specials
Gold reflector
Max. power
200 kW /m2
Response time
1s
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Page/ Seite 29
Heraeus Noblelight
Short Wave Twin Tube IR Emitter
Applications
A
li ti
in
i
Plastics Processing
Heating PVC flooring
prior to embossing
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Page/ Seite 30
Heraeus Noblelight
Fast Response Medium Wave Twin Tube Emitter
Power density
80 W/cm
Max. heated length
6400 / 2390 mm
Cross section
34 x 14 / 23 x 11 mm
Filament temperature 1400 °C - 1800 °C
Peak Wavelength
g
> 1.4 µ
µm
Specials
Gold reflector
Max. p
power
150 kW /m2
Response time
1-2s
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Page/ Seite 31
Heraeus Noblelight
Fast Response Medium Wave
Twin Tube IR Emitter
Applications in
Plastics Processing
Curing ink on plastic
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Page/ Seite 32
Heraeus Noblelight
Medium Wave Twin Tube IR Emitter
Power density
18
20
Max. heated length 1500 2000
25 W/cm
6500 mm
Cross section
18x8 22x10 33x15 mm
Filament temp.
800 ° - 950 ° C
Peak Wavelength
2.4 - 2.7 µm
Specials
Gold reflector
Max. power
60 kW /m2
Response time
1 - 4 min
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Page/ Seite 33
Heraeus Noblelight
Medium Wave Twin Tube IR Emitter
Applications in
Metal Processing
Coating of lacquer
to preserve metal
tubes for pipelines
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Page/ Seite 34
Heraeus Noblelight
Carbon Round Tube IR Emitter
Power density
40 W/cm
Max. heated length 1500 mm
Diameter
19 mm
Filament temp.
1200 ° C
Wavelength
2 µm
Specials
Gold reflector
Max. power
100 kW/m2
Reaction time
1-2s
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Page/ Seite 35
Heraeus Noblelight
Carbon Single Tube IR Emitter
Applications in
Metal Processing
Curing water based
reflective paint on
aluminium light
cluster
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Page/ Seite 36
Heraeus Noblelight
Carbon Twin Tube IR Emitter
Power density
80 W/cm
Max. heated length 3000 mm
Cross section
34 x 14 mm
Filament temp.
1200 ° C
Peak Wavelength
2 µm
S
Specials
i l
G ld reflector
Gold
fl t
Max. power
150 kW/m²
Response time
1-2s
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Page/ Seite 37
Heraeus Noblelight
Carbon Twin Tube IR Emitter
Gelling and curing of
powder
d coating
ti
on
metal bottle openers
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Page/ Seite 38
Heraeus Noblelight
Carbon Infrared Emitters
Round Tube
Max. Power/m2
Twin
100 kW
150 kW
Filament temperature 1200 °C
1200 °C
Reaction time
1- 2 s
1- 2 s
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Page/ Seite 39
Heraeus Noblelight
QRC® heater (quartz reflective coating)
Power
80 W/cm
cross section
23 x 11 mm
34 x 14 mm
peak wavelengthshort wave to
medium wave
Specials
Quartz reflective
coating
coat
g
Short wave emitter with QRC reflector for vertical use by request !
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page 40
Heraeus Noblelight
QRC® Reflector
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page 41
Heraeus Noblelight
Infrared Emitters
Fast response
InfraLight Short Wave medium
medi m Wave
Wa e
Max. Power/m2 250 kW
2300
Filament temperature °C -2600
Reaction time
1s
Carbon
T i
d Twin
round
200 kW
1800
-2400
150 kW
1400
-1800
100 150 kW
1200 1200
1s
1-2s
1 2s
1 2 s 11-
Medium
W
Wave
60 kW
800
-950
1 4 min
1-
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Page/ Seite 42
Heraeus Noblelight
Heating up of different emitter types
Heating up in %
100 % is operational temperature of each emitter
100 wave emitter
Short
100
90
90
Fast response medium wave80emitter
80
70
70
Carbon emitter
60
50
60
50
40
40
30
30
20
Medium wave emitter
10
0
20
10
0
0
1
2
3
4
5
55
105
155
205
Time [s]
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Page/ Seite 43
Heraeus Noblelight
Spiral Tube IR Emitter
Power
200 / 250 W
Voltage
115/230 V
Inner diameter
20 mm
Spirals
twice/four times
Wavelength
Medium
Specials
Gold reflector
Mode
Stand by
Heating time
5 s for ABS Plastics
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Page/ Seite 44
Heraeus Noblelight
Short Wave small area IR Emitter
Power
250/500 W
Heated area
22x45/45x45 mm
Voltage
57,5/115 V
Filament temp.
1800-2200 °C
Wavelength
1.2 - 1.4 µm
Specials
Gold reflector
Reaction time
1- 2 s
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Page/ Seite 45
Heraeus Noblelight
Plug in Emitter
Power
250 W
Heated length
45 mm
Cross section
23x11 mm
Filament temperature
p
2000 °C
Wavelength
1.2 µm
Specials
reflector
Gold
Max. power density
120kW/m²
Reaction time
1-2 s
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Page/ Seite 46
Heraeus Noblelight
Contour Emitter
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Page/ Seite 47
Heraeus Noblelight
Omega Emitter
Heating of a plastic bar - Applications in plastics processing
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Page/ Seite 48
Heraeus Noblelight
Infrared Technology – Standard Modules
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Page/ Seite 49
Heraeus Noblelight
Infrared Technology – Tailor Made Modules
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Page/ Seite 50
Heraeus Noblelight
Increase of Efficiency – Wavelength Converter
Increase of efficiency
by additional converter
for high transmission
materials
For fast heating while
saving energy
Infrared Emitters
Foil
Converter
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Page/ Seite 51
Heraeus Noblelight
Increase of Efficiency
Airknife - Module
IR Emitters
Advantages
Air exchange shortens
the drying process
IR Radiation is utilized
to an higher extent
Cool Air in
Warm Air out
Longer useful life of
infrared emitters
Heating of the material by infrared radiation,
Dry Air takes up the vapours
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Page/ Seite 52
Heraeus Noblelight
The Heraeus Application Center
The Heraeus Application Center
will perform custom-orientated
applications and will offer you a
practicable and optimized solution
solution.
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Page/ Seite 53
Heraeus Noblelight
The Heraeus
Th
H
Application
A li i C
Center
We offer you:
Test Centers all over the world
Tests with IR-emitters and UV-lamps
Mobile IR-modules and control units
Support by
y test engineers
g
Library of more than 3000 test reports
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Page/ Seite 54
Heraeus Noblelight
Infrared for many Applications
KUNSTSTOFFE
METALL
METAL
PLASTICS
GLAS
GLASS
AutomobilAutomobili d t i
industrie
PAPIER
PAPER
Lebensmittel
FOOD
Automotive
industry
www heraeuswww.heraeuswww.heraeus
heraeus-noblelight.com
noblelight com
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Page/ Seite 55
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inadmissible and punishable, unless pre-approved by Heraeus. This applies in
particular to photocopies, publications, translations as well as storage and processing
i electronic
in
l t i systems.
t
All data in this presentation were thoroughly ascertained by Heraeus. However,
Heraeus does not assume any liability for their correctness or completeness.
The data are based on conditions of use and environmental influences assumed by
Heraeus. They cannot be adopted indiscriminately, but require prior verification for the
respective use of the customer.
Exclusively Heraeus’ General Terms of Delivery shall apply to all deliveries of Heraeus
for commercial transactions with business enterprises.
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