HP-5 hard muscovite board. The product was silver white, temperature level: continuous use conditions, temperature 500 ℃, intermittent conditions of use under the conditions of temperature 850 ℃;
· HP-8 hard gold mica board. The product was golden, temperature level: continuous use under the conditions of temperature 850 ℃, intermittent use under conditions of temperature 1050 ℃.
Excellent high temperature insulation properties, the maximum temperature up to 1000 ℃, high temperature insulation materials, has a good price.
· Excellent electrical unsaturated polyester glass mat sheet, the resistance of ordinary products, breakdown voltage up to 20KV / mm.
2017年4月28日星期五
2017年4月24日星期一
epoxy glass laminate sheet is also known as epoxy glass fiberboard, epoxy phenolic laminated glass cloth, epoxy resin is a molecule that contains two or more epoxy groups of organic polymer compounds, in addition to individual, their Relative molecular mass is not high. The compressed laminated wood of the epoxy resin is characterized by the presence of a reactive epoxy group in the molecular chain, and the epoxy group may be at the terminal, intermediate or cyclic structure of the molecular chain. As the molecular structure contains lively epoxy groups, so that they can be associated with a variety of types of curing agent cross-linking reaction to form insoluble, non-melting with three-way network structure of the polymer. The following are the same as the "
2017年4月20日星期四
epoxy fiberglass tube is made of electrician non-alkali glass fiber cloth impregnated with epoxy resin, baked, forming mold after hot-pressing the cross-section was made of round bar of the glass rod with high mechanical properties. Dielectric properties and good machinability. Applicable to electrical equipment for mica insulation tape structural parts, and can be used in humid environment and transformer oil. The following are the same as the "
2017年4月16日星期日
The demand for anti static plastic sheet is increasing with the development of the energy industry. Now, the demand for natural mica plate is reduced, and the exploitation of natural mica plate is reduced year by year. Currently on the market of high-quality mica still can not meet the needs of the market, the future still have to speed up the pace of development. According to the statistics, the current consumption structure of mica plate has changed, the demand for mica is declining, and the demand for broken mica board continues to grow. Some comprehensive utilization of products, such as mica paper, mica powder are relatively popular products. With the domestic demand for thin slices of mica in recent years, natural mica plate gradually replaced, mica board processing products increasingly popular. The future, China's energy industry is the focus of development, increasing demand for mica cable tape. Coupled with industrial, electrical equipment replacement, also need a large number of insulating plates and other products, the domestic mica paper has a broad market. In addition, the application of mica powder field of continuous development, demand will be with the further growth. Whether the overall grasp of the domestic market development status of mica board, which is not only related to the company's future capacity planning, and to a large extent determine the company's product strategy.
2017年4月12日星期三
What is an epoxy bar?
Epoxy rods are electric alkali-free glass fiber cloth impregnated with epoxy resin, baked, forming molds after hot-pressing the cross-section was round bar. The glass rods have high mechanical properties.
Epoxy bars can be divided into two categories by classification:
1. bakelite electrical insulation board, which is commonly known as the pull rod, generally used for arrester or insulator mandrel.
2. Epoxy Alkali cloth laminated rods, commonly known as sticks or laminated rods, generally used as machining insulation parts. Transformers and other products, the mechanical performance is better than pull rod.
Application Features:
1, in various forms. Various resins, curing agents, modifier systems can be adapted to a wide range of applications to the requirements of the form, ranging from very low viscosity to high melting solids.
2, easy to cure. Choose a variety of curing agent, epoxy resin system can be almost 0 ~ 180 ℃ temperature range curing.
3, strong adhesion. The presence of polar hydroxyl and ether linkages inherent in the molecular chain of the epoxy resin gives it a high adhesion to various substances. Epoxy resin curing low shrinkage, the resulting internal stress is small, which also helps to improve the adhesion strength.
4, low shrinkage The reaction of the electrical insulating board and the curing agent used is carried out by a direct addition reaction or by ring-opening polymerization of an epoxy group in the resin molecule without the presence of water or other volatile by-products. They exhibit very low shrinkage (less than 2%) compared to unsaturated polyester resins and phenolic resins during curing.
5, mechanical properties. The cured epoxy resin system has excellent mechanical properties.
Epoxy bars can be divided into two categories by classification:
1. bakelite electrical insulation board, which is commonly known as the pull rod, generally used for arrester or insulator mandrel.
2. Epoxy Alkali cloth laminated rods, commonly known as sticks or laminated rods, generally used as machining insulation parts. Transformers and other products, the mechanical performance is better than pull rod.
Application Features:
1, in various forms. Various resins, curing agents, modifier systems can be adapted to a wide range of applications to the requirements of the form, ranging from very low viscosity to high melting solids.
2, easy to cure. Choose a variety of curing agent, epoxy resin system can be almost 0 ~ 180 ℃ temperature range curing.
3, strong adhesion. The presence of polar hydroxyl and ether linkages inherent in the molecular chain of the epoxy resin gives it a high adhesion to various substances. Epoxy resin curing low shrinkage, the resulting internal stress is small, which also helps to improve the adhesion strength.
4, low shrinkage The reaction of the electrical insulating board and the curing agent used is carried out by a direct addition reaction or by ring-opening polymerization of an epoxy group in the resin molecule without the presence of water or other volatile by-products. They exhibit very low shrinkage (less than 2%) compared to unsaturated polyester resins and phenolic resins during curing.
5, mechanical properties. The cured epoxy resin system has excellent mechanical properties.
2017年4月8日星期六
Definition of insulating material
According to the national standard GB2900.5 provides the definition of insulating material is: "used to make the device in the mica insulation tape of the material." That is, to prevent the current through the insulating material. Its resistivity is very high, usually in the range of 10 ~ 10Ω · m. Such as in the motor, the insulating material around the conductor will be isolated and isolated from the grounded stator core to ensure the safe operation of the motor
Resistivity of 109 ~ 1022 Ω • Cm material composition of the material in the electrical technology known as vpi mica tape, also known as dielectric. Simply means that the charged body and other parts of the material isolation. Insulation material on the DC current has a very large resistance, under the action of DC voltage, in addition to a very small surface leakage current, the fact is almost non-conductive, and for the AC current there is a capacitor current through, but also that is not Conductive. The greater the resistivity of the insulating material, the better the insulation performance.
Electrical technology Insulation material is usually referred to as the resistance coefficient greater than 10 9 square Ω.cm material. The role of insulating material is mainly in the electrical equipment to separate the potential of the live part of the isolation.
So the insulation material to have a good dielectric properties, that is, have a high insulation resistance and pressure strength, to be able to avoid leakage, creep and breakdown and other accidents; followed by insulation materials, heat resistance is better, mainly to To ensure that there will be no long-term heat due to performance changes; in addition to good thermal conductivity, moisture and a higher mechanical strength and process processing and so on.
Electrician commonly used insulating materials, according to the different chemical properties, can be divided into inorganic materials, organic. Insulation materials and mixed insulation materials of three types.
Resistivity of 109 ~ 1022 Ω • Cm material composition of the material in the electrical technology known as vpi mica tape, also known as dielectric. Simply means that the charged body and other parts of the material isolation. Insulation material on the DC current has a very large resistance, under the action of DC voltage, in addition to a very small surface leakage current, the fact is almost non-conductive, and for the AC current there is a capacitor current through, but also that is not Conductive. The greater the resistivity of the insulating material, the better the insulation performance.
Electrical technology Insulation material is usually referred to as the resistance coefficient greater than 10 9 square Ω.cm material. The role of insulating material is mainly in the electrical equipment to separate the potential of the live part of the isolation.
So the insulation material to have a good dielectric properties, that is, have a high insulation resistance and pressure strength, to be able to avoid leakage, creep and breakdown and other accidents; followed by insulation materials, heat resistance is better, mainly to To ensure that there will be no long-term heat due to performance changes; in addition to good thermal conductivity, moisture and a higher mechanical strength and process processing and so on.
Electrician commonly used insulating materials, according to the different chemical properties, can be divided into inorganic materials, organic. Insulation materials and mixed insulation materials of three types.
2017年4月4日星期二
What are the electrical insulation materials?
Electrical paper banding tape: mainly used for motors, electrical appliances, such as generators, motors for the electric shaft wedge, stator windings, rotor winding insulation. According to the shape is divided into six categories: ① insulating paint, resin and adhesive category. For example, insulation impregnated paint, silicon steel lacquer, enameled wire paint, potting resin and a variety of adhesives and other commonly used epoxy resin, polyester, polyurethane, silicone resin, polyimide alkyd resin (see alkyd resin coating )Wait. ② impregnated fiber products. Such as resin impregnated with various types of cotton, silk, synthetic fiber and glass fiber or fabric insulation fabric, belt and other products. ③ laminated products category. Various organic or inorganic substrates are impregnated with resin after laminates, such as laminates. ④ plastic products category. From the resin to add a variety of organic or inorganic filler, such as TV shell, instrument, instrument shell, electrical switch connector shell and so on. ⑤ thin film, synthetic paper and its composite products category. For example, various polymer film dielectric materials, commonly used are polystyrene, polypropylene, polyester, polycarbonate, polytetrafluoroethylene, polyimide and other films; various synthetic fiber compressed laminated wood, such as aromatic poly Amide fiber paper, polyester fiber paper; all kinds of insulating adhesive tape, insulation tape, and so on. ⑥ rubber products category. Such as a variety of wire and cable insulation and sheath, heat shrink tubing, silicone rubber insulation terminals. We love the long-term insulation specializing in the production of the first five kinds of insulation products, welcome customers to visit us for a long time insulation. Should be with the benefits of long-term focus, all will be beneficial for a long time professional.
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