Type: 3441 (China standard)
1. 3441, 3441H Magnetic laminate sheet is made from electrical glass cloth with alkali-free that impregnated with epoxy resin under pressure,with high mechanical strength, heat resistance, with good magnetic permeability.
2. Application:It is widely used for making magnetic slot and wedge for motors.
3. Thermal grade: class B/F.
4.Thickness : 2-20mm; Size: 1000x2000mm, 1020mm x 1220mm, 1220 x 2440mm Color: Black
5. The other size can be supplied according to customers' requests.
※Products can be supplied sheets or shapes according to customer drawing
※Note: The values noted in above technical specification are given only for our customers’ reference and should not be used in writing specifications.
6. Technical data:
|
Properties |
Unit |
Value |
|
Flexural strength |
A: under normal |
≥ |
MPa |
280 |
|
perpendicular to lamination |
conditions |
|
Impact strength parallel to |
≥ |
kJ/m2 |
40 |
|
laminations (Charpy) |
|
Dielectric strength perpendicular to |
≥ |
kV/mm |
— |
|
laminations (in 90±2℃ transformer |
|
oil,1mm in thickness) |
|
Breakdown voltage parallel to |
≥ |
kV |
— |
|
laminations |
|
(in 90±2℃ transformer oil) |
|
Permittivity(48-62Hz) |
≤ |
— |
— |
|
Permittivity(1MHz) |
≤ |
— |
— |
|
Dissipation factor(48-62Hz) |
≤ |
— |
— |
|
Dissipation factor(1MHz) |
≤ |
— |
— |
|
Water absorption |
≤ |
mg |
— |
|
(D-24/23,1.6mm in thickness) |
|
Density |
— |
g/cm3 |
≥2.8 |
|
Flammability |
— |
Class |
— |
|
Color |
— |
— |
Gray |
|
Reference standard |
— |
— |
Q/TXXFR002-2009 | |
