Insulation board in the storage of certain conditions, should pay more attention to some of the details, so as to do anti-aging measures. Only to do the measures, so as to play the effect of insulation board.
1, not visible sunshine
transformer pressboard see the light will produce free radicals, will speed up aging, stored in a cool condition.
2, the temperature appropriate
Storage temperature is too high will lead to the phenomenon of cracking of the insulation board, so the temperature should be appropriate.
3, cool and dry
Anything is in the wet environment is not good, so the insulation is the same, because in a humid environment, easy to be hydrolyzed and destroyed, and learn not close to the ground and walls, to prevent back tide.
4, storage room to be clean
mica insulation tape and oil contact will affect its strength and mechanical properties, so to keep the storage room clean, not other chemical substances.
leadwin
2017年4月27日星期四
2017年4月23日星期日
Environmentally friendly insulation board is the future direction of development
In the world, in order to protect our planet, daily production and application are also more and more taking into account environmental factors. Therefore, although the insulating material of the insulation cable paper is an indispensable core material, it is also used as a raw material, so it will lead to excessive lead content in the detection, including mercury, cadmium, chromium and other elements. This material should not be used, but the insulation material in the hydro-generators, turbo-generator and other power generation equipment has a wider application. This has to be in a variety of engineering power generation, power transmission and distribution of electrical equipment and equipment is met in the link, the technical level of insulation materials, quality, reliability are playing a vital role.
In recent years, we have developed the insulation material, have to avoid 6 or more toxic and hazardous substances become this is our top priority. In response to this market changes, the domestic mica insulation sheets production enterprises on the halogen-free flame retardant CCL, halogen-free flame retardant electrical plastic, halogen-free flame retardant insulating paint and other types of materials will also accelerate.
It is based on this new environmental requirements, the insulation board should be environmentally friendly development, and vigorously developed for the toxic substances alternatives to meet the development of insulation board.
In recent years, we have developed the insulation material, have to avoid 6 or more toxic and hazardous substances become this is our top priority. In response to this market changes, the domestic mica insulation sheets production enterprises on the halogen-free flame retardant CCL, halogen-free flame retardant electrical plastic, halogen-free flame retardant insulating paint and other types of materials will also accelerate.
It is based on this new environmental requirements, the insulation board should be environmentally friendly development, and vigorously developed for the toxic substances alternatives to meet the development of insulation board.
2017年4月19日星期三
Main features and precautions of insulation board
electrical insulating board materials are diverse, respectively, rubber, resin, curing agent, insulation board principle is the use of material non-conductive principle and electrical insulation, so as to protect people's lives, insulation board mainly through the curing process and refining, with the form Variety, easy curing, low shrinkage, mechanical properties and strong adhesion and so on. Now widely used with a variety of miners factories, substations, power plants, then electricity, laboratories and outdoor cable operation operations, a variety of electric vehicles, transportation and real estate and other places are also widely used. The following are the same as the "
Insulation board used in addition to the prevention of electrical conductivity, the industry is also mainly used for anti-corrosion and wear, impact resistance to protect the use of equipment and device protection, such as thermal power plant desulfurization system is the use of insulating plate anti-corrosion characteristics, Treatment of anti-corrosion in the application of the same principle. The use of insulation board, can effectively extend the life of equipment and protect people's lives for the purpose of safety.
bakelite electrical insulation board is used for insulation with the earth, the length of its laying can not be less than 60cm, and the thickness is based on the size of the voltage, the greater the voltage, the thickness should be appropriate to thicken to prevent accidents. Insulation board to use when tiled on the ground, can not be muster, can not have holes, cracks and other defects. Use the environment to be dry place, can not be used in wet places.
Insulation board used in addition to the prevention of electrical conductivity, the industry is also mainly used for anti-corrosion and wear, impact resistance to protect the use of equipment and device protection, such as thermal power plant desulfurization system is the use of insulating plate anti-corrosion characteristics, Treatment of anti-corrosion in the application of the same principle. The use of insulation board, can effectively extend the life of equipment and protect people's lives for the purpose of safety.
bakelite electrical insulation board is used for insulation with the earth, the length of its laying can not be less than 60cm, and the thickness is based on the size of the voltage, the greater the voltage, the thickness should be appropriate to thicken to prevent accidents. Insulation board to use when tiled on the ground, can not be muster, can not have holes, cracks and other defects. Use the environment to be dry place, can not be used in wet places.
2017年4月15日星期六
Single panel and insulation board distinction
Single panel history:
Single-sided printed circuit board is the early 1950s with the emergence of transistors, the United States as the center of the product developed, when the main production methods to copper foil direct etching method for the mainstream. 1953 ~ 1955, Japan imported copper foil for the first time made of paper phenolic copper foil substrate, and a large number of applications in the radio. In 1956, the Japanese circuit board professional manufacturers, single-panel manufacturing technology then rapid progress. In the material, the early to paper-based phenolic copper foil-based, but because of the material at the time of electrical insulation is low, poor heat resistance welding, twisting and other factors, one after another paper ring resin, glass epoxy resin and other materials Development, the current consumption of electronic equipment required for a single panel, almost using paper phenolic substrate board.
Single panel features:
The single panel is on the most basic PCB, the parts are concentrated in one side, the wires are concentrated on the other side. Because the wires only appear on one side, we call this kind of PCB called single-sided. Because there are many strict restrictions on the design of the single-sided board (because there is only one side, the wiring can not cross and must be around the path), so only the early circuit to use such a board;
Single-panel wiring diagram to network printing (Screen Printing), that is, printed on the copper surface of the resistance agent, after etching and then anti-solder mark on the mark, and finally punching processing to complete the parts guide hole and shape. In addition, a small number of diverse production of products, the use of photoresist to form a pattern of photography.
Insulation board, also known as insulation pads, insulation pads, insulation pads, unsaturated polyester glass mat sheet. Insulating mats are widely used in substations, power plants, distribution rooms, laboratories and field live operations.
The use of plastic insulation materials, insulation pad on the surface should be no harmful irregularities. Insulation mats Hazardous irregularity refers to one of the following characteristics, namely, damage to uniformity, damage to the surface smooth contour defects such as small holes, cracks, local uplift, incision, inclusions conductive foreign bodies, creases, voids, embossed corrugations and casting Logo and so on. Harmless irregularity refers to the surface irregularities that are formed in the production process.
In the entire insulation board should be randomly selected more than five different points for thickness measurement and inspection. Can be measured using thousands of points of mind or the same precision of the instrument. The accuracy of the micrometer should be within 0.02mm, the diameter of the drill is 6mm, the diameter of the flat presser foot is (3.17 ± 0.25) mm, and the presser foot should be able to apply the pressure of (0.83 ± 0.03) N. The insulation pad should be placed flat Make the micrometer between the measurements smooth.
Single-sided printed circuit board is the early 1950s with the emergence of transistors, the United States as the center of the product developed, when the main production methods to copper foil direct etching method for the mainstream. 1953 ~ 1955, Japan imported copper foil for the first time made of paper phenolic copper foil substrate, and a large number of applications in the radio. In 1956, the Japanese circuit board professional manufacturers, single-panel manufacturing technology then rapid progress. In the material, the early to paper-based phenolic copper foil-based, but because of the material at the time of electrical insulation is low, poor heat resistance welding, twisting and other factors, one after another paper ring resin, glass epoxy resin and other materials Development, the current consumption of electronic equipment required for a single panel, almost using paper phenolic substrate board.
Single panel features:
The single panel is on the most basic PCB, the parts are concentrated in one side, the wires are concentrated on the other side. Because the wires only appear on one side, we call this kind of PCB called single-sided. Because there are many strict restrictions on the design of the single-sided board (because there is only one side, the wiring can not cross and must be around the path), so only the early circuit to use such a board;
Single-panel wiring diagram to network printing (Screen Printing), that is, printed on the copper surface of the resistance agent, after etching and then anti-solder mark on the mark, and finally punching processing to complete the parts guide hole and shape. In addition, a small number of diverse production of products, the use of photoresist to form a pattern of photography.
Insulation board, also known as insulation pads, insulation pads, insulation pads, unsaturated polyester glass mat sheet. Insulating mats are widely used in substations, power plants, distribution rooms, laboratories and field live operations.
The use of plastic insulation materials, insulation pad on the surface should be no harmful irregularities. Insulation mats Hazardous irregularity refers to one of the following characteristics, namely, damage to uniformity, damage to the surface smooth contour defects such as small holes, cracks, local uplift, incision, inclusions conductive foreign bodies, creases, voids, embossed corrugations and casting Logo and so on. Harmless irregularity refers to the surface irregularities that are formed in the production process.
In the entire insulation board should be randomly selected more than five different points for thickness measurement and inspection. Can be measured using thousands of points of mind or the same precision of the instrument. The accuracy of the micrometer should be within 0.02mm, the diameter of the drill is 6mm, the diameter of the flat presser foot is (3.17 ± 0.25) mm, and the presser foot should be able to apply the pressure of (0.83 ± 0.03) N. The insulation pad should be placed flat Make the micrometer between the measurements smooth.
2017年4月11日星期二
Fr4 insulation board is what material
FR-4 is a code for the grade of flame polyimide glass fiber, which means that the material of the resin material must be self-extinguishing. It is not a material name but a material grade. Therefore, the current general circuit There are a lot of FR-4 grades used in the boards, but most are composites made of so-called Tera-Function insulating resin and Filler and glass fiber. FR-4 Epoxy Glass Cloth, Insulation Board, Insulation Board, compressed laminated wood, Brominated Insulating Resin Board, FR-4, Glass Fiberboard, FR-4 Insulating Glass Cloth Laminate, FR-4 Epoxy Glass Cloth, FR-4 reinforced resin board, flame retardant insulation board, FR-4 laminated board, insulation board, FR-4 light board, FR-4 reinforced board, FPC reinforced board, flexible circuit board reinforcement board, FR- FR-4 glass plate, insulated glass cloth board, insulated glass cloth laminated board, circuit board drilling plate. Main technical characteristics and application: stable electrical insulation, smoothness, smooth surface, no pits, thickness tolerance standards, suitable for high-performance electronic insulation requirements of products such as FPC reinforced board, PCB drilling pad, glass (Dielectric) equipment, electrical insulation (electrical equipment) insulation barrier strips, insulation pads, transformers insulation board, motor insulation, grinding gears, Electronic switch insulation board.
2017年4月7日星期五
Classification of insulation materials
transformer pressboard insulation and temperature are closely related. The higher the temperature, the worse the insulating properties of the insulating material. To ensure the insulation strength, each insulation material has a suitable maximum allowable operating temperature, below this temperature, can be used for long-term safety, more than this temperature will quickly aging. According to the degree of heat, the epoxy fiberglass tube is divided into Y, A, E, B, F, H, C and other levels, the heat resistance level corresponding to the following:
Y-class insulation temperature 90 ℃, A-class insulation temperature 105 ℃, E-class insulation temperature 120 ℃, B-class insulation temperature 130 ℃, F-class insulation temperature 155 ℃, H-class insulation temperature 180 ℃, Insulation temperature above 200 ℃.
Y-class insulation temperature 90 ℃, A-class insulation temperature 105 ℃, E-class insulation temperature 120 ℃, B-class insulation temperature 130 ℃, F-class insulation temperature 155 ℃, H-class insulation temperature 180 ℃, Insulation temperature above 200 ℃.
2017年4月3日星期一
Insulating paint, can withstand the current through the coating, the volume resistivity is usually greater than 109Ω.cm coating called vulcanized fiber sheet. The effect of the insulating coating is to isolate the charged part from the uncharged part or the part with different potentials so that the current can flow according to a certain path. According to the national standard GB2900 -: - 5 provides the definition of epoxy glass laminate sheet is: "used to make insulation on the electrical components of the material", that is, to prevent the current, shielding current through the material. Beijing Zhisheng Weihua high temperature insulating coating research and development departments, the organization of more than 10 materials experts, after years of research and development, insulation insulation performance has a comprehensive breakthrough to enhance the other industry process has immeasurable significance.
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