High purity tungsten wire (99.95% tungsten), enriched with K20, Si02 and Al203, gives physical qualities (tear resistance, Specific resistance, surface roughness).
A layer of graphite covers the surface of the tungsten wire and gives him a matt black aspect.
FIELDS OF APPLICATION
The resistant tungsten wires are intended for the production of heated laminated glass for automotive market
These tungsten wires are bounded on PVB sheet by means of local heating and pressure.
Prepared PVB sheets are assembled inside bended glass for final products
Physical Properties
The electric resistance of the tungsten wire has a tolerance of +/-3 % of its nominal value. The resistance of the wire is defined as the resistance measured at 20°C
Type Code
Resistance
ohm / m
Wire weight mg / 200mm
Diameter μm
Length by spool
Wire aspect
Mandatory range
Indicative value
Indicative value
Min
Max
35
33,95 – 36,05
Matt black
50
48,5 – 51,5
Matt black
52
50,44 – 53,56
Matt black
100
97 -103
2,60 -2,71
29
4000
15 000
Matt black
125
121,25 – 128,75
2,01 -2,11
27
4000
15 000
Matt black
150
145,5 – 154,5
1,81 – 1,94
24
6000
15 000
Matt black
175
169,75 – 180,75
Matt black
230
223,1 – 236,9
1,190 -1,285
19
6000
15 000
Matt black
280
271,6 – 288,4
Matt black
For more detailed technical information please contact us
