Mica sheet

Mica sheet

Due to its stunning resistance to high heat, pressure, electricity and chemicals, mica refractory sheets are used in a variety of industries, from simple appliances to sophisticated smelting furnaces. This refractory material, with great popularity among different industries, is produced in two types, hard and soft.

Sanat Pars Refractory Store is ready to provide advice, sale and delivery of various types of mica sheets, in various dimensions and thicknesses throughout the country.

Mica is a group of minerals that contain manganese, water, iron, potassium, and aluminum silicate. Extraction of mica is a difficult and costly process, and although about 28 types of mica have been identified so far, only 6 of them can be extracted from rocks, which in order of frequency are:

Muscovite, which has a light color
Biotite, dark or black
Phlogopite, brown in color
Paragonite, which is very similar to muscovite and can be detected by microscopy
Lepidolite, pink
Gluconite, green in color
In the meantime, only muscovite and phlogopite can be used in industry.

Colorless and transparent mineral mica, due to the presence of silicon oxide in its compositions, have significant flexibility and elastic properties, but at the same time, the desired mechanical properties and significant resistance to stretching, manual cutting and machining in They facilitate.

It is suggested to read the related articles on the refractory website of Sanat Pars to get acquainted with the products made of mica.

Since mica is a mineral extracted from nature, the natural, environmental, geological conditions and the type and amount of minerals in mica will give it different properties. However, the average heat tolerance of mica is estimated at 1000 ° C. And the common denominator among the mica is that they are all non-flammable. On the other hand, the presence of numerous minerals in this refractory material, including sodium fluoride, magnesium, lithium, iron and lithium, mica against common solvents, oil, water and most acidic substances (except hydroflora and pure sulfur) and The bases have become resistant. These minerals also cause stunning electrical resistance and dielectric properties in mica, which makes it resistant to electric current phenomena such as corona or alternating current around high-voltage power cables.

As mentioned earlier, of the six types of mica extracted from nature, only muscovite and phlogopite are widely used in industry. Muscovite, which is the most abundant extractable mica in nature, has a significant voltage due to the presence of more potassium in its compounds and is mostly used in the field of electrical insulation. However, muscovite also has good heat resistance and will be able to withstand temperatures as high as 1,200 degrees Celsius. Phlogopite, on the other hand, has a higher heat tolerance than muscovite due to its higher magnesium content and is often used as a thermal insulator.

For more details about mica sheet, you can read the article on mica refractory sheet from Pars Sanat refractory website.

Mica refractory sheet is produced in the form of two products: soft mica refractory sheet and hard mica refractory sheet, which, although there are differences in some characteristics, but in general, have similar characteristics. Here are some of the features:

low weight
High heat tolerance; Experts have estimated the application temperature of mica sheet for long-term use at 1000 ° C.
It is non-flammable and does not smoke in the face of fire.
High longevity and durability
Slight thickness that allows rapid heat transfer and cooling of parts.
Resistance to pressure and its neutralization
Optimal mechanical properties and stretch resistance
Possibility of cutting and machining
Significant dielectric properties and unique electrical resistance up to 25 mm / kv, and the possibility of microwave waves passing through it
Stunning chemical resistance to mineral oils and solvents; And maintain properties in the face of most acidic and alkaline substances
Numerous positive properties of this refractory material have led to the use of mica sheets in different parts of the industry. These applications include the following:

Strengthening the construction of induction furnaces, due to the simultaneous mechanical, thermal and electrical resistance
Production of gaskets to protect equipment against expansion and contraction pressures in car exhaust and heat exchangers
Insulation of furnaces; By enabling the expansion and contraction of the furnace cover, the durability of the furnace liner increases.
Hard mica sheet can be used to insulate the furnace floor due to its higher heat tolerance. Soft mica sheet can not be used in the construction of the furnace.
In contrast, soft mica sheets are often used in parts that require simultaneous electrical and thermal insulation due to their excellent electrical resistance.
Soft mica sheet can be used as a cover or insulation foil.
Soft mica sheets are used for winding.
Soft mica sheet made from muscovite is also used to produce a heating element in the stove.
Hard mica sheets are used to make home appliances designed to produce heat quickly and according to the law of convective heat transfer, such as toasters, hair dryers, and heaters.
Thick mica sheet made of phlogopite, which has lower flexibility than thin sheet of muscovite, for the automotive industry and Hu

Space is useful.
The use of soft mica sheets has a special application for insulation and protection of parts in the casting and steel industry.

For more information and advice on buying fiber ceramic refractory yarn, in various dimensions and thicknesses, you can refer to the website www.nasoozsp.com or contact the experts of Sanat Pars Refractory Store.