Magnetic shielding - Transformer shielding - Mu-Ferro plating
A new material (Mu-ferro 6800) has been developed for the shielding of low frequency magnetic fields, typically 50 - 60 Hz but also applicable between 10 Hz and 100 Khz. The material combines both permeability and saturation characteristics for perfect magnetic field shielding.
The material
Mu-Ferro is an alloy with a two-sided sendzimir layer of 275 gr. /m2 according to standard EN 10147:1992 . Then a "no-rinse" layer have been preprocessed on the sendzimir layer. The coating exist from nom. 45mμ high anti-corrosive primer and a top layer. Mu-Ferro has a tough thermally sink system, is firm of advancement and contains no hydrochlorate or air enclavements.
Applications:
Power transformers
Underground power lines
Low frequency, High current
Electronic microscope
NANO laboratories
Properties
Test method
Value
Hardness
ECCA T4 (ASTM D3363)
120-180 Brinell
Rupture
ECCA T5 (ISO 6272)
40 Joule
Joining
ECCA T6 (ISO 1520)
No delamin, Cuppingtest
T-Bend
ECCA T7
3T for flat material 5T for geëmbosseerd
Salt spraying test
ECCA T8 (ASTM B 117-90)
2000 hour
Condensation test
NCCA-IIII-6 (ASTM D2247-87)
1000 hour
UV test QUV (VB 313 Licht)
ECCA T10
672 hours: no change observed
SO Capacitance
ECCA T16 (DIN 50018)
30 cycli
Wear consistency
ASTM 968-9
124 litre sand
Linear puffing-up coefficient at 23ºC
-
8.2 x 10-6K-1
Voluminal capacitance
-
75-85 μOhm/cm
Elasticity modulo
-
150-190 Gpa
Compactness
-
8,55 g/cm³
Thermal conductance at 23ºC
-
812,4 Wm-1 K-1
The danger of magnetic fields
Magnetic fields pose a serious threat to human health e.g. scientific research show that exposure to magnetic fields > 300nT, or 3 Gauss increase risk of cancer childhood leukaemia. Beside these negative health effects, strong magnetic fields also distrub or destroy electronics in the area of the field e.g. sensitive measures in laboratories require a low magnetic field (NANO labs).
Properties
Mu-Ferro can be applied in spaces or at equipment which provide a jamming (electro) - magnetic field, (for example (inside building) transformers). The properties of Mu-Ferro material can reduce these fields up to 95% (Depending on the application). For further information you can get in contact with your supplier).
Customer Benefits:
Cost-effective solution
Short lead time
Measurement rapport included
For new buildings and retrofitting existing buildings
No loss of space
Standard wall finishing possible
Quick service and delivery
Flexibility of design according to customer's wishes
Turn key solutions
Company profile
Worldwide project & service
All shielding disciplines
Experienced staff
Own test facility
Climate:
Mu-ferro can be nearly always be used in rural, urban, industrial en maritime climates. (at doubt get in touch with your supplier)
Capacitance against corrosion
The life span of mu ferro depends on a lot of factors, among the application as wall- or roof plate, the local surroundings and the emission of detrimental substances.
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