2017年6月9日星期五

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;

2017年6月5日星期一

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.

2017年5月26日星期五

High temperature mica plate (insulation board) those advantages

The product was silver-white, temperature level: continuous use conditions, temperature 500 ℃, intermittent conditions of use temperature 850 ℃;
• HP-8 hardness high temperature hot metal mother board (mica tape for cable). The product was golden, temperature level: continuous use under the conditions of temperature 850 ℃, intermittent use under conditions of temperature 1050 ℃.
Excellent high temperature performance, the highest temperature up to 1000 ℃, high temperature insulation materials, has a good price.
• Excellent electrical insulation performance, withstand voltage breakdown of up to 20KV / mm.
• Excellent bending strength and processing performance, high bending strength, and excellent toughness, with the punching can be processed to a variety of shapes without stratification. Excellent environmental performance, non-asbestos, less heat when heated and small odor, or even smoke-free

2017年5月21日星期日

Explain what the role of insulating material

What is the effect of epoxy fiberglass tube? Do you know? For this question we give a more detailed explanation; hope for everyone can help.
The role of insulating material is in the electrical equipment to the potential of different charged part of the isolated. Therefore, the insulation material should first have a high insulation resistance and compressive strength, and to avoid leakage, breakdown and other accidents. Second, the heat resistance is better, to avoid long-term overheating and aging deterioration; In addition, there should be good thermal conductivity, resistance to lightning and high mechanical strength and process processing and other characteristics. According to the above requirements, commonly used insulating material performance indicators are dielectric strength, tensile strength, specific gravity, expansion coefficient.
Electrician commonly used insulating materials according to their different chemical properties, can be divided into inorganic insulation materials, organic insulation materials and mixed insulation materials. Commonly used inorganic insulation materials are: mica, asbestos, marble, porcelain, glass, sulfur, etc., mainly used for motors, electrical insulation winding, switch the bottom plate and insulators. Organic insulating materials are: shellac, resin, rubber, cotton yarn, paper, linen, rayon, etc., mostly used to manufacture insulating paint, winding wire wound insulation and so on. Mixed insulation materials for the above two kinds of materials through the processing of various molding insulation materials, used as electrical appliances of the base, shell and so on.

2017年5月16日星期二

What is the quality of insulation materials on the electrical equipment have any effect?

With the rapid development of domestic industrial industry, many manufacturers of electrical equipment requirements are getting higher and higher. For many electrical equipment, the insulation transformer pressboard is one of the indispensable materials. It is directly related to the life of electrical equipment, but also plays a role in promoting the technical improvement of equipment. To improve the performance of electrical equipment, to strengthen the technical improvement of insulating materials is indispensable.
In the industry norms are not perfect today, there are still many manufacturers qualified to meet the requirements. Which led to a lot of production of insulating materials, product quality unqualified, and some even mixed with impurities, the use of the entire equipment have affected. In the manufacture of insulating materials, material composition, formulation, process, storage, use and so on affect the service life. In the use of a variety of electrical equipment, should be time through a dedicated instrument for performance testing to ensure the quality of the use of the product. At the same time, in the course of the use of insulating materials, aging is also the key to control the operation of equipment. So also need to adjust the environmental conditions, so that it meets the real operating state.

2017年5月5日星期五

Insulation board quality is good or bad identification

As the state of environmental requirements become more stringent, many companies on the application of the insulation board more and more widely, it is because of this reason many companies for the interests of money, many companies are selling poor insulation board, we In the procurement time do not know how to identify the insulation cable paper is good or bad, here we teach you how to identify the quality of insulation board how to distinguish between good and bad!
   First: the level of the more obvious level
    Insulation board of the more obvious description of the quality of the insulation board qualified, he has a feeling that this insulation board quality is qualified.
   Second: from the analysis of the composition of the point of view to deal with product quality problems
   Refer to the function of the supplied sample to improve your product, and may improve the function according to the parameter requirement, such as elongation, tear strength, anti-aging function and so on. The problem of the quality of the mica insulation tape, such as the frosting, the frosting and the vulcanization time, is studied from the viewpoint of the analysis component, and the problem is raised from the viewpoint of the composition of the sample and the auxiliary agent.

2017年5月1日星期一

Is the rubber insulation board an epoxy insulated board?

Rubber electrical insulating board is made of rubber and glass fiber and other materials from the processing, epoxy resin is an epoxy resin with glass fiber material through high temperature and high pressure made of insulation board or epoxy insulation board. We usually refer to the insulation board with epoxy board, epoxy resin insulation board.
Epoxy resin board with strong adhesion, strong shrinkage, mechanical properties, high dielectric properties, chemical stability, dimensional stability, resistance to mold, etc., is excellent quality mechanical properties of the epoxy board. As an epoxy board of another epoxy glass fiberboard, we can also be called epoxy phenolic laminated glass cloth plate, model 3240, on the type of provisions, we briefly introduce the first 3 on behalf of laminated products, Winding products, vacuum pressure impregnated products. The second 2 represents the inorganic bottom of the laminate. The third bit 4 represents the temperature index level of 155 degrees. The fourth digit represents the product variety code.
Another type of epoxy board is called fiberglass board, which is composed of glass fiber material and high heat resistance of the composite material, does not contain harmful asbestos ingredients. Its electrical insulation performance is stable, smoothness, smooth surface, no pits, thickness tolerance exceeds the standard, suitable for high-performance electronic insulation requirements of the product, such as FPC reinforcement board, precision tour round wheel, electrical equipment isolation Board, insulation pads, transformers insulation, electrical insulation, electronic switch insulation board, and so on.