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Mica Insulation Plate

 

Product Description

Mica insulation plate are designed for use in extreme conditions and have very good properties like heat retarding, flame resisting, low thermal conductivity, good electrical insulation, high mechanical strength and non toxic. Based on the Mica type used as a base material it is classified as Muscovite or Phlogopite Mica insulation plate.

Application

For Arc chutes, Bus bar support, Resistor bank, molding plates, Dynamic braking resistors, furnace lining, resistor heat dissipaters, Insulation of platen in heated hydraulic presses, Induction furnace.

MAIN TECHNICAL CHARACTERSTICS

  Characteristics

Test Method

MICA INSULATION PLATE

MUSCOVITE

PHLOGOPITE

Standard Size (mm)

IEC 371-2

1000 x 600, 1000 x 1200, 
1000 x 2400

Density (gm/cm3)

IEC 371-2

2.10~2.25

2.10~2.25

Flexural strength (N/mm2)

ISO 178

≥230

≥200

Compressive strength at 20°C (N/mm2)

ISO 604

≥400

≥320

Dielectric strength (KV/mm) at 23°C

IEC 243

>25

>20

Insulation resistance  (M-ohm) at 23°C

IEC 93

200 ~ 600

100 ~ 600

Resistance to temperature

continuous

500ºC

800ºC

Peak

800ºC

1000ºC

Thermal Conductivity (w/m.ºC)   to laminate          0.3            0.3
= to laminate          3.0            3.0
Thermal Expansion (/ºC)   to laminate      100 x 10-6         100 x 10-6
= to laminate        10 x 10-6          10 x 10-6

Weight Loss @ 550°C for 4 Hrs

IEC371-2

< 1 %

Water Absorption  after 24 hrs

ISO 62

< 0.50 %


Download Technical Datasheet