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Performance and use of mica tape
Release time:
12 Jan,2024
Mica tape has good electrical and mechanical properties, has flexibility at room temperature, can be continuously wrapped around the motor coil, the main insulation of the motor coil by dipping or molding. Tung oil anhydride epoxy glass mica tape has excellent electrical and mechanical properties, good three-proof performance, high heat resistance, is the main insulation of high-voltage electric machine. Epoxy boron ammonium glass powder mica tape has a high heat distortion temperature, when the desired temperature is reached, can be quickly cured, easy to use. Organic silicon wafer or mica powder tape has high temperature resistance and is generally used for motor coil insulation above 180 ℃. Less rubber mica tape is mainly used for vacuum pressure integral impregnation of continuous insulation, with a certain degree of insulation strength and mechanical properties.
In the generator and high-voltage large motor products, the main application of 3 mica tape materials: ordinary tung-ma mica tape materials, accounting for more than 75% of the total application; high mica content tung-ma mica tape material, accounting for about 15%; tung oil anhydride insulated mica tape and solvent-free whole immersion mica tape, about 10%. The first two materials are mainly used for large and medium-sized generators, and the latter one is used for high-voltage AC motors.
More news
Application of synthetic mica tape in fire-resistant cable
The application field of fire-resistant cable is gradually expanding, from the original offshore oil platform to aviation, aerospace, navigation, subway, tunnel, commercial building, hospital, dance hall, metallurgy, chemical industry and power plant, etc., which require high fire resistance rating. In recent years, with the maturity of the manufacturing technology of fire-resistant synthetic mica tape, the amount of fire-resistant cables manufactured with it is increasing. As we all know, the refractory mica tape is divided into two categories: *(950-1000 ℃) and B (750-800 ℃).
Refractory mica tape-Refractory insulation
High temperature resistance: synthetic mica belt fluorine gold mica belt, does not contain crystal water, melting point 1375 ℃, safety margin, high temperature resistance is the best, phlogopite releases crystal water above 800 ℃, high temperature resistance is the second, muscovite releases crystal water at 600 ℃, high temperature resistance is poor.
Calculation method of used quantity of polyethylene heat shrinkable winding tape
Heat shrinkable tape (open sleeve) is used to prevent corrosion at the welding place of two steel pipes. What is important is to use a set of heat shrinkable tape for one joint joint. The specifications are divided according to the pipe diameter and the price is sold according to one set. Therefore, a set of heat shrinkable tape will contain all the materials required for this weld joint corrosion protection: main tape; Epoxy primer; Fixing sheet; Adhesive tape.
How much do you know about wire and cable wrapping?
1. protect the insulation or inner sheath layer from damage to the armor when the cable is armored, and play the role of buffer and liner. 2. in the process of cable use, due to different materials on the cable insulation or inner sheath layer from heat insulation, or anti-corrosion, anti-aging and other different effects.
Flame retardant cable is characterized by delaying the spread of flame along the cable so that the fire does not expand. Whether it is a single cable or a bundle of laying conditions, the cable is known to burn when the spread of the flame can be controlled within a certain range, so you can avoid the fire caused by the major disasters, thereby improving the fire level of the cable line.
What is halogen-free flame retardant belt?
Halogen-free flame retardant products with flame retardant level up to UL94-V0 standards, does not contain fluorine, chlorine, bromine, iodine halogen. Low smoke when burning, more environmentally friendly. The product has good self-adhesion, completely self-melting in a short time, no layering, and good sealing. The self-adhesive tape has good ductility, insulation and excellent physical properties.