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Reports×岡部マイカ工業所 - List of Manufacturers, Suppliers, Companies and Products

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Functional material "mica" as a substitute for ceramics *Case studies for problem-solving available.

Functional materials with excellent electrical insulation, flame resistance, and processability! Heat-resistant mica boards are sheet products made from mica, which has excellent heat resistance and insulation properties.

"Mica" is a functional material that excels in heat resistance, insulation, and workability. While it has heat resistance and insulation properties comparable to ceramics, its excellent workability has garnered attention. 【Heat-resistant Mica Board D581A Features】 ● Unlike ceramics, it does not crack or chip due to impacts from drops. ● It maintains high strength without expansion or contraction even when heated to high temperatures. ● It is a flame-retardant (non-combustible) material (UL94 V-0 certified product). ● It maintains electrical insulation even under high-temperature heating conditions (UL746B certified product; D581A electrical characteristics: 760°C, D581 electrical characteristics: 750°C). ● It produces minimal smoke and odor when heated, and there is almost no release of low molecular siloxanes. ● It has excellent workability and can be used in various shapes. We also accept various processing requests. Thickness: 0.15–1.50mm - Router/Laser/Punching Thickness: 1.50–30.0mm - Router/Laser/Machining *We also offer consultations for insulation and insulation design, so please feel free to contact us. *For more details, please download the PDF or contact us.

  • Ceramics
  • Organic Natural Materials
  • Other metal materials

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Flexible fire prevention sheet

It can be incorporated into the shape of the customer with a soft sheet-like product!

The flexible sheets D680 and D680A are products that integrate laminated mica with silicone adhesive, exhibiting excellent flexibility at room temperature and allowing for arbitrary deformation without heating. Furthermore, these products have obtained UL94 V-0 (D680, D680A) and UL94-5VA (D680) certifications, making them suitable for use as flame-retardant sheets. They can also be easily fixed with double-sided tape or similar methods. 【Features】 ■ Excellent thermal insulation and sealing properties, demonstrating high electrical insulation. ■ Excellent heat resistance. ■ Highly flexible at room temperature, allowing for arbitrary deformation. *For more details, please download the PDF or contact us.

  • Other machine elements

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Mica tape for rotating machines

Good adhesion with the coil and easy to tape!

Dry mica tape is a product that combines laminated mica with various reinforcing materials using a small amount of epoxy adhesive. It has excellent resin impregnation properties and is ideal for constructing insulation systems using the vacuum pressure impregnation (VPI) method for high-voltage coils. Prepreg mica tape is a product that combines laminated mica with glass cloth using epoxy adhesive. A significant feature is that the epoxy adhesive is in a semi-cured state (B stage), allowing for the construction of insulation systems solely through heat pressing after coil winding. 【Features】 - Dry mica tape has excellent impregnation properties. - Prepreg mica tape can be integrally formed using only heat pressing. - It has excellent flexibility and winding properties, resulting in good adhesion to coils. - It exhibits outstanding electrical insulation performance, starting with corona resistance. *For more details, please download the PDF or contact us.*

  • Other machine elements

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Mica tape for fire-resistant electric wires

It is used in the fire-resistant layer of fire-resistant wires and fire-resistant bus ducts.

Mica tape for fire-resistant wires is primarily used as the fire-resistant layer for fire-resistant wires. It is a product made by bonding assembled mica with various reinforcing materials using a heat-resistant silicone adhesive. OMF-8 has obtained UL94 V-0 certification (UL File No. E58537). DG88-AN, which has a micro-adhesive applied for work purposes, is used at the wire joint section. 【Features】 ■ Excellent electrical properties at high temperatures ■ Uniform thickness and characteristics ■ Highly flexible with excellent winding properties, ensuring good adhesion to conductors ■ DG88-AN has adhesive on one side, making it easy to work with *For more details, please download the PDF or contact us.

  • Other machine elements

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Mica for induction furnaces

It is used between the insulation material of the crucible-type electric induction furnace and the coil for the protection of the coil, insulation, and vibration absorption.

Mica for induction furnaces is a product made by bonding glass cloth and ceramic paper to integrated mica using silicone adhesive. The ceramic paper is entirely made from biodegradable materials and complies with RCF regulations. It is mainly used as insulation between the coil and the crucible-shaped electric induction furnace, providing protection for the coil, insulation, and vibration absorption. Furthermore, the mica surface is slippery, making it easier to dismantle refractory materials during furnace body repair work. 【Features】 ■ Excellent heat resistance and electrical insulation properties ■ Available in roll form for easy installation *For more details, please download the PDF or contact us.

  • Other machine elements

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What is Maika?

Mica, also known as muscovite, is a natural mineral characterized by its ability to peel off in thin layers.

This is a natural mineral with a mysterious property that allows it to be easily peeled into thin sheets due to its structure, which connects a sheet-like skeletal layer formed by chemically strong covalent bonds with K ion layers through relatively weak ionic bonds. Our company processes and manufactures mica products (sheets/tapes) for various applications using "hard mica" from India, which has excellent electrical insulation properties, and "soft mica" from Sri Lanka, which has excellent heat resistance. 【Features】 ■ Easily peelable ■ Electrical insulation ■ Heat resistance *For more details, please refer to the PDF document or feel free to contact us.

  • Other machine elements
  • Organic Natural Materials

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[Request Implementation Example] Improvement of Quality Characteristics

We will introduce examples where the results of many years of fundamental research have led to improvements in quality characteristics.

At the request of our customers, we received an inquiry about whether we could improve the electrical insulation performance of mica tape by more than 20% compared to conventional products in order to increase product output. The mica tape that constitutes the electrical insulation layer is made from mica foil, glass cloth, and adhesive. To meet this request, we attempted an approach by optimizing the mica paper. As a result, we discovered that the conventional mica paper has weaknesses that negatively affect insulation performance, and by eliminating these weaknesses, we were able to overcome the challenges. [Case Study] ■ Background - Inquiry about whether we could improve the electrical insulation performance of mica tape by more than 20% compared to conventional products to increase product output. ■ Challenges - Made from mica foil, glass cloth, and adhesive. - Attempted an approach by optimizing the mica paper. *For more details, please refer to the PDF document or feel free to contact us.

  • Other machine elements
  • Organic Natural Materials
  • Other services

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High rigidity and low warpage dielectric sheet.

If you are looking for thin yet high voltage resistance performance!

The D461·MCT-BS dielectric voltage sheet is a product that integrates laminated mica with epoxy adhesive. It is also used as a partition board (barrier board) and a rigid reinforcement plate for high-voltage equipment. Even with a thin board thickness, it exhibits excellent electrical insulation properties, contributing to the thinning and lightweighting of various insulating materials. Additionally, MCT-BS has obtained UL94 V-0 certification. 【Features】 - Excellent resistance to corona, arcing, and tracking, as well as good high-frequency characteristics. - Superior processability, allowing for easy cutting, machining, and punching. - A product with minimal warping and high mechanical strength. - Excellent water resistance. - In the fields of materials for power equipment and electronic devices, it is expected to contribute to lightweighting, flame retardancy, and cost reduction. *For more details, please download the PDF or contact us.

  • Other machine elements

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