What kind of insulating material is formed by the way?

laminated compressed wood covers the type is too much, which will not be good at conducting the material known as the insulator, the resistivity of this material is often very high. Of course, insulators can also be divided into many categories, such as solid insulators there are plastic, rubber, glass, ceramics, etc .; liquid insulator refers to the natural mineral oil, silicone oil, trichlorobenzene, etc .; there are like air, carbon dioxide, Sulfur hexafluoride and the like.
The insulator has an obvious characteristic, that is, when it is under some external conditions, it will be broken down "and converted into conductors, and it is not absolutely broken before the insulator is not absolutely conductive objects, if A voltage is applied across the insulating material, and a weak current is also present.
As an soldering frames, there are many molding methods, if the different needs in accordance with the matrix material in different ways. For example, resin-based insulating material molding methods are hand-paste molding, jet molding, fiber winding molding, molding, pultrusion, RTM molding, hot-pressing tank molding, diaphragm molding, migration molding, reaction injection molding, Stamping and so on.
The metal-based EPGC203 is only solid-phase molding method and liquid-phase molding method, the former is below the melting point of the substrate temperature, through the application of pressure to achieve molding, including diffusion welding, powder metallurgy, hot rolling, hot drawing, Pressure and explosive welding. The latter is the matrix melting and filling into the reinforcement material, the traditional casting, vacuum suction, vacuum back pressure casting, extrusion casting and casting, etc. are liquid phase molding.
There is also a ceramic-based insulation material, its molding methods are also a variety of options, including solid-phase sintering, chemical vapor phase infiltration molding, chemical vapor deposition molding and so on.

What materials are solid insulation materials?

We all know that insulating materials can be simply divided into solid, liquid and gas three categories, which are usually used in more or solid insulation material, as long as it can be isolated from the potential of the conductor as a solid can be Classified as this category.
Compared to gas phenolic paper sheet and liquid insulating materials, the density of the solid insulating material is relatively high, so it has a high breakdown strength and helps to reduce the insulation thickness. The solid insulation material itself can also be divided into two kinds of inorganic and organic.
Wherein the inorganic solid electrical insulating board comprises mica, powder mica and mica products; glass, glass fiber and its products, and electric porcelain, alumina film, respectively, for different insulation structures. But they have a common characteristic, such as high temperature, not easy to aging, with considerable mechanical strength.
Inorganic solid insulation material is not perfect, its main drawback is poor processing performance, so this material is not easy to adapt to the electrical equipment on the molding requirements of insulating materials. It is precisely because of this, but also limits the scope of application of inorganic solid insulation materials to further expand.
Let's talk about organic solid insulation materials, just when there are some natural materials, such as paper, cotton, silk, rubber, can be cured of vegetable oil. But with the advancement of technology, synthetic polymer materials fundamentally changed the form of organic solid insulation materials.
And the elastomer material is also gradually to the insulation side of the line, such as heat-resistant silicone rubber, oil-resistant nitrile rubber, and the subsequent fluorine rubber, ethylene propylene rubber, etc., are very typical organic solid insulation materials

In the electricity process, people pay attention to the power line material cross-sectional area of ​​the size of the safe use of electricity have an impact, but often the use of insulation transformer pressboard is not enough attention. Now the power line alignment is more and more complex, walking under the wood floor, the wall, the partition and the wet underground or water are, if the insulation tape used improperly, will produce leakage, endangering personal safety or cause a fire. So how do you use insulating tape correctly?
Power cord connector is divided into "ten" word connection, "one" word connection, "Ding" word connection and so on. Joints should be wrapped around, smooth without thorns. Before the thread is broken, it should be wiped with a steel wire, and then wound around the mouth, and then swing around, the thread will be quickly disguised at the joint disconnected. If the joints in the dry place, you should first use insulated black cloth wrapped two layers, and then wrapped plastic tape (also known as pvc adhesive tape) two layers, and then J-10 insulation self-adhesive tape stretched about 200% Finally wrapped two layers of plastic tape.
Because the direct use of plastic tape a lot of defects: plastic tape a long time easy to glue dislocation, plastic open, electrical load heavy, the joints heat, plastic tape easy to melt shrink; electrical connector in the junction box with each other pressure, Easy to stamp empty plastic tape, etc., these risks directly endanger personal safety, causing the line is moderate, causing a fire. The use of insulating black tape will not appear above, it has a certain strength, flexibility, can be tightly wrapped around the joints, by time and temperature and dry fixed type, will not fall off, and flame retardant. Moreover, wrapped with insulated vinyl tape and then wrapped with moisture, rust.
Of course, the anti static plastic sheet is also defective, although it is waterproof but easy to break, so the last need to wrap two layers of plastic tape for the protective layer, connector and connector insulation self-adhesive tape non-stick, better performance.

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 cable paper 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 laminated mica sheet 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.

Application of insulating materials

The role of g10 fiberglass tube 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 pressure 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 ease of processing and so on. According to the above requirements, commonly used pe mica tape 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 electrical, electrical winding insulation, 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 insulation and so on. Mixed bakelite electrical insulation board for the above two kinds of materials from the processing of various molding insulation materials, used as electrical appliances of the base, shell and so on.

G11 fire resistant cables tape is actually insulation board insulation material in a type only, G11 is a class of insulation board division. Insulation board in fact there are FR4 insulation board, G11 insulation board, and so on all types and grades of insulation materials. G11 unsaturated polyester glass mat sheet is mainly used for electronics, electrical industry, has a good insulation performance, in a variety of harsh environments is still able to maintain a good working condition.
garolite g7 has the advantages: its insulation performance is good, there is a certain high temperature resistance, high mechanical properties, with moisture resistance, as well as dielectric properties and so on. Its high temperature resistance can reach 288 degrees of high temperature, but also a normal and stable work.
Specific scope of application: electronic, electrical equipment in the insulation baffle, transformers need to use the insulation board, electronic switch insulation objects, fiberglass meson, precision test panels, as well as precision planetary gears, etc. need insulation and The use of its own characteristics of the various industries and objects.

GPO-3 is a very good performance of the bakelite electrical insulation board, because it was so widely used, so that the counterfeiters will be more on-site market, there are too many fish mixed with GPO-3 insulation materials, although all Close to the GPO-3 label, but the performance is indeed a world of difference. Good anti static plastic sheet can be safe and efficient for us to use, you can fake and shoddy products but there are many security risks. Below the insulation material manufacturers teach you to identify the true and false GPO-3.
Method 1, genuine GPO-3 are required through the US safety laboratory certification (UL certification), with independent and unique UL identification code. So when you buy this kind of mica insulation tape GPO-3 must see if there is no UL identification code, or let the business to provide UL identification code.
Method 2, genuine GPO-3 its resistance to leakage index can reach 600V, you can test it, or let the business to provide indicators.
Method 3, authentic GPO-3 insulation material density is between 1.81-1.83, must be in accordance with national standards, the middle must be no filler, so be sure to see.

What is the raw material for SMC?

SMC is the abbreviation of Sheet molding compound, EPGC202 into Chinese is a sheet molding compound. The main raw materials from the SMC special yarn, unsaturated resin, low shrinkage additives, fillers and various additives. Is a kind of resin-based composite material, it first appeared in Europe in the early sixties of the twentieth century, in 1965 or so, the United States, Japan have developed this process. China in the late 80s, the introduction of foreign advanced SMC material production lines and production processes. SMC material has excellent EPGC201 electrical performance, corrosion resistance, light weight and easy to design, flexible, etc., its mechanical properties can be comparable with some metal materials, which are widely used in transportation vehicles, construction, electronics / electrical and other industries.