Mica-plastic electrical insulating materials. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Mica-plastic electrical insulating materials. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Electricity for beginners

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All micaceous materials are produced by gluing and pressing sheets of micaceous paper. The latter is obtained from non-industrial mica waste as a result of mechanical crushing of particles by an elastic wave. Compared to mica, mica-plastic materials have greater mechanical strength, but are less homogeneous, since they consist of larger particles than mica. The most important mica-plastic insulating materials are as follows.

Collector mica is a solid sheet material, calibrated in thickness. It is obtained by hot pressing sheets of mica-plastic paper, previously coated with a layer of adhesive. Is issued in sheets of 215 x 465 mm in size.

Mica cushioning - a solid sheet material made by hot pressing sheets of mica paper coated with a layer of binder. Is issued in sheets of 520 x 850 mm in size.

Mica molding - pressed sheet material, hard in a cold state and capable of being molded when heated. Available in sheets ranging in size from 200 x 400 mm to 520 x 820 mm.

Mica flexible - pressed sheet material, flexible at room temperature. Available in sheets ranging in size from 200 x 400 mm to 520 x 820 mm.

Flexible glass mica - pressed sheet material, flexible at room temperature, consisting of several layers of mica paper, pasted over on one side with fiberglass, and on the other with glass mesh or on both sides with glass mesh. Available in sheets ranging in size from 250 x 500 mm to 500 x 850 mm.

Mica plastofolium is a rolled or sheet material, flexible and formed in a heated state, obtained by gluing several sheets of mica-layer paper and glued on one side with or without telephone paper.

Mica tape is a rolled material flexible at room temperature, consisting of mica paper, pasted over with mica paper on both sides. This material is available in rolls 12, 15, 17, 24, 30 and 34 mm wide.

Heat-resistant glass mica tape is a flexible material at room temperature, consisting of a single layer of mica paper, glued on one or both sides with fiberglass or glass mesh using silicone varnish. The material is produced in rollers 15, 20, 25, 30 and 35 mm wide.

Author: Smirnova L.N.

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Renowned lighting manufacturer Cree has announced the launch of a new family of mid-range XLamp XH Series ceramic LEDs. Most of today's LEDs at this price level come in plastic cases, while newer ones feature a more durable ceramic construction. Two series are presented - XH-G and XH-B.

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