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3240 epoxy board and fr4 epoxy board of difference and performance characteristics
How to better the difference between epoxy plate in the family of various grades of plank, domestic epoxy plate is usually divided into: 3240 epoxy plate, fr4 epoxy plate, the use of materials and the production process is different also, the following suri electrical knowledge on epoxy plate for you.
1, 3240 epoxy board said: 3240 phenolic epoxy glass cloth laminated sheet. By electrical glass cloth with epoxy resin, the dry, hot pressing. Epoxy resin is referring to molecule contains two or more than two epoxy groups of organic polymer compound, in addition to the individual, their relative molecular quality is not high. The molecular structure of the epoxy resin based on molecular chain containing lively epoxy groups for its characteristics, epoxy groups can be placed at the end of the chain, or into a ring structure in the middle. After curing system of epoxy resin is a kind of high dielectric properties, surface leakage resistance, arc resistance of insulating materials. 3240 epoxy plate widely used in machinery, electronics, electrical use. Applicable to mechanical, electrical, electronics, electrical appliances and other fields. Also used in insulation parts processing, processed into all kinds of insulation parts. Equipment insulation structure parts.
About two and a half, fr4 epoxy board main material is imported curing film, color white, yellow, green, under the normal temperature of 150 ℃ still has high mechanical strength, good electrical properties under dry and wet state, fire retardant, used in electrical, electronic and other industries insulation structure parts, using imported raw materials, domestic compressor and elaborate manufacture standard process; The main specifications have 1000 * 1000 mm to 1020 mm * 1220 mm, because of the advantages of raw materials, to ensure the high quality and low price, timely delivery, has a stable customer base, both at home and abroad and enjoy high reputation. Fr4 epoxy plate electric insulation performance stability, good flatness, smooth surface, no pits, thickness tolerance standard, suitable for application in high performance electronic insulation requirements of products, such as FPC reinforcement plate, PCB drilling pad, fiberglass meson, glass fiber board potentiometer carbon film printing, precision tour stars gear grinding (chip), precision test plate, electrical (electrical) equipment insulation stay clapboard, insulating plate, transformer insulation board, motor insulation parts, grinding wheel, electronic switch insulation board, etc.
3, 3240 epoxy plate and fr4 epoxy plate used for various kinds of industries, its more customers don't require to better choose to suit your own sheet, in terms of product quality, product cost is a better choice.
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