China‑Manufactured 3 mm × 1000 mm × 600 mm Mica Sheet
Composition & Structure
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Typically made from muscovite or phlogopite mica paper, bonded with high-temperature silicone resin, forming a rigid laminated plate Superb Heater TechnologyChrcn.
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Mica content generally exceeds 90%, while resin (binder) content remains at ≤10% Superb Heater TechnologyChrcn.
Key Technical Properties
| Property | Specification / Value |
|---|---|
| Temperature Resistance | Continuous: ~500 °C (muscovite); Up to ~750 °C intermittent (phlogopite) ChrcnMica PlateHenan Jinzhi Electrical Insulation |
| Dielectric Strength | Typically ≥ 15–20 kV/mm Henan Jinzhi Electrical InsulationTS HeaterAll Electronics Online |
| Flexural Strength | Around ≥ 150 MPa Superb Heater TechnologyMica Plate |
| Density | Approximately 1.8–2.5 g/cm³ Superb Heater TechnologyWESHARE |
| Heat Loss (at 500 °C) | Less than 1–2% Superb Heater TechnologyMica PlateHenan Jinzhi Electrical Insulation |
| Insulation Resistance | Very high; up to ~10¹² Ω cm at elevated temperature Henan Jinzhi Electrical InsulationMica Plate |
| Chemical Resistance | Incombustible, free from asbestos and halogens; minimal smoke or odor Mica PlateHenan Jinzhi Electrical Insulation |
Thermal & Electrical Characteristics
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Performs exceptionally in high-temperature insulation roles, maintaining integrity in ovens, heating elements, and electrical appliances Henan Jinzhi Electrical InsulationSuperb Heater TechnologyMica Plate.
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Excellent electrical insulation properties make it ideal for high-voltage or high-frequency components Henan Jinzhi Electrical InsulationWikipediaAll Electronics Online.
Applications
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Widely used in heating appliances: irons, hairdryers, toasters, kettles, strip heaters, and band heaters Superb Heater Technology+1Mica Plate.
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Critical for industrial furnaces, metallurgical equipment, and other systems requiring both electrical insulation and heat resistance Henan Jinzhi Electrical InsulationSuperb Heater TechnologyWESHARE.
Form & Machinability
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For thicknesses below ~2.0 mm, mica sheets can be stamped or punched. Above 2.0 mm (like 3 mm), they tend to be processed via machining methods such as milling, turning, or drilling Mica PlateChrcn.
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According to industry feedback, mica is soft and machinable, though care must be taken to avoid layer delamination, especially in thicker sections Reddit.
Storage & Handling
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Store in a dry, ambient environment; no specific lifespan limit under suitable conditions ChrcnAll Electronics Online.
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Products are typically packed in pallets or cartons, often around 50 kg per pack or tailored packaging depending on the supplier Superb Heater TechnologyWESHARE.
Summary
A 3 mm thick, 1000 × 600 mm Chinese-made mica sheet is a high-quality, durable, and thermally robust material—featuring outstanding electrical insulation, flexibility for machining, and long-term stability under high strain and temperature. It suits an array of applications—from household heating appliances to industrial furnace components.
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