Polymer insulation board with chrysotile asbestos and cement as the basic raw material, the use of rotary screen copy of the plate making machine, copy bakelite electrical insulation board, trimming and oil and other processes made of high temperature arc can be used as motor, electrical parts The board can be used as an electrical insulation material, which can be used in the place where the humidity is large. The board has the advantages of strong quality, high strength, corrosion resistance, freezing resistance and resistance. Heat, vulcanized fiber sheet, fire and other advantages. Polymer insulation products, must be strictly in accordance with the requirements, drying and dipping treatment, or can not be used as electrical insulation materials. Insulation requirements are too high, before use and then dry again.
Polymer insulation board has a high dielectric properties, corrosion resistance.

In the entire laminated compressed wood along the way, but also experienced a lot of setbacks, early products because all aspects of technology is not yet mature in the use of the process encountered a lot of trouble and technical problems. With the technology more and more mature insulation materials began to develop rapidly, and its development is also due to the rapid development of the electromechanical industry, electromechanical industry is a traditional industry, as early as 1743 began the concept of mechanical and electrical integration, which A few years is the rapid development of epoxy glass laminate sheet is also its development is driven out, then the recent trend of the future of insulating materials is certainly toward the best direction in the development.

What are the characteristics of insulating materials:

① polyimide glass fiber most of the plastic light, chemical stability, not rust;
② good impact resistance;
③ has good transparency and abrasion resistance;
④ good insulation, low thermal conductivity;
⑤ general shape, good coloring, low processing costs;
⑥ most of the plastic heat resistance is poor, thermal expansion rate, easy to burn;
⑦ dimensional stability is poor, easy to deformation;
⑧ most of the low temperature resistance of plastic poor, low temperature brittle;
⑨ easy to age;
⑩ some plastic soluble in the solvent.

How many kinds of insulation materials?

Many types of flexible composite materials, can be divided into gas, liquid, solid three categories. Commonly used gas insulation materials are air, nitrogen, sulfur hexafluoride and so on. Liquid insulation materials are mainly mineral insulating oil, synthetic insulating oil (silicone oil, dodecyl benzene, polyisobutylene, isopropyl biphenyl, diaryl ethane, etc.) two categories. Solid insulation materials can be divided into organic, inorganic two categories. Organic solid insulation materials include insulating varnishes, insulating glue, insulating paper, insulating fiber products, plastic, rubber, lacquered lacquers and insulating impregnated fiber products, electrical thin films, composite products and adhesive tape, electrical laminates and so on. Inorganic solid insulation materials are mainly mica, glass, ceramics and their products. In contrast, solid insulation material variety, but also the most important. Different electrical equipment requirements for the performance of insulating materials are focused. High-voltage electrical equipment such as high-voltage motors, high-voltage cables and other insulation materials require high breakdown strength and low dielectric loss. Low-voltage electrical appliances, such as mechanical strength, elongation at break, heat-resistant grade as the main requirements.
  The macroscopic properties of insulation material tube such as electrical properties, thermal properties, mechanical properties, chemical resistance, weather resistance, corrosion resistance and other properties are closely related to its chemical composition and molecular structure. Inorganic solid insulation material is mainly composed of silicon, boron and a variety of metal oxides, mainly to the ionic structure, the main features of high heat resistance, the working temperature is generally greater than 180 ℃, good stability, resistance to atmospheric aging, Chemical properties and long-term under the action of the electric field aging performance; but high brittleness, low impact strength, high pressure and low tensile strength; poor process. Organic materials are generally polymers with an average molecular weight between 104 and 106, and their heat resistance is usually lower than that of inorganic materials. Contains aromatic rings, heterocycles and silicon, titanium, fluorine and other elements of the material heat resistance is higher than the general line of chain polymer materials. An important factor affecting the dielectric properties of insulating materials is the strength of the polar and the content of polar components. The dielectric constant and dielectric loss of the polar materials are higher than those of the non-polar materials, and the impurity ions are easily adsorbed to increase the conductivity and reduce the dielectric properties. Therefore, in the insulation material manufacturing process should pay attention to clean, to prevent pollution. Capacitor dielectrics require high dielectric constants to increase their specificity.

At present, the market of anti static plastic sheet is divided into two categories: natural muscovite paper, natural phlogopite paper, synthetic fluoride mica paper.
  Three kinds of mica paper in 500 ℃ below a small amount of material decomposition, weight loss rate are below l ‰; when the natural muscovite paper heated to 550 ℃ or more, natural geranium paper heated to 850 ℃ above a large number of structural water Decomposition, the synthesis of fluoride gold phenolic paper sheetr heated to l050 ℃ above, fluoride is also a large number of release. There is a large number of substances decomposed, their flame retardancy, pressure drop sharply, so the natural use of natural muscovite paper temperature of 550 ℃, natural geranium paper maximum temperature of 850 ℃, and Taiwan into fluorophlogopite The maximum temperature of the paper is 1 050 ° C.
  China's fire cable sub-A, B two categories, Class A cable maximum temperature requirements for the 950 ~ 1 000 ℃, B class cable maximum temperature requirements of 750 ~ 800 ℃, for the above reasons, the manufacture of fire cables used mica The band can only be made of natural geranium paper or synthetic fluorine mica paper.

The quality of anti static plastic sheet itself also directly affects the application performance of mica, mica tape mica paper to have a good permeability, high tensile strength and good density, in addition, 6 thick thickness of the mother paper should be uniform The As the mica paper in the small mica between the adhesion force is very small, the production of mica plate is a glue with glue to improve the adhesion between the small mica, so when the mica paper penetration is poor In the production of mica plate process, the mica paper itself to receive a certain tension, when the tensile strength is too low, the mica paper (mica paper), the mica paper is not enough, the mantle board will be layered, the quality does not meet the requirements; It is necessary to crack, or even break, so that the mica board fire, insulation greatly reduced. In general, when the pe mica tape thickness is certain, the more dense mica paper, the production of mica board fire, the better insulation. When the mica paper thickness is not uniform, less than the standard thickness of the place, the mica plate fire resistance, insulation corresponding to worse; higher than the standard thickness of the place, glue is not easy to soak, even if soaked, mica tape is not easy Dry, because for a certain thickness of mica paper, in the production process of its heating temperature and heating time is fixed, which resulted in the mica board local stratification, affecting the mica plate product quality;

Dry-type power transformers are based on the principle of electromagnetic induction manufacturing electrical equipment, so have the ability to efficiently use the electromagnetic induction of the core and winding. Oil-immersed transformers are mainly composed of iron core, group, heat resistant tape, fuel tank and so on. Due to the difference in structure, the dry-type power transformer has no fuel tank, mainly composed of iron core, coil, insulation material and related accessories.
 At present, dry-type power transformers are mainly epoxy resin (including pouring and around the package). The early immersion type is changed from oil change, and the high voltage winding is usually the cake winding. Epoxy resin type dry type transformer adopts high-voltage winding and adopts the layer winding and pours. The low-voltage winding adopts spiral winding and pouring and box type Winding. The type of dry-type power transformers in the external structure of the larger differences, while the core structure is basically the same.