source:Industry News release time:2023-05-15 Article author:yu Popular:pcb
Most single, double-sided, and multi-layer PCB circuit boards are made of FR-4. The FR in FR-4 represents flame retardant, while the number 4 distinguishes this material from other materials in this category. FR-4 is a glass fiber reinforced epoxy laminate that looks like a thin woven fabric board. The term FR-4 also represents the grade used to manufacture these laminates. The glass fiber structure provides structural stability for the material. The glass fiber layer is covered with flame-retardant epoxy resin. This brings durability and strong mechanical properties to the material. All of these characteristics make FR-4 printed circuit boards very popular among electronic contract manufacturers.
Its technical characteristics mainly lie in: electrical insulation, stability, good flatness, smooth surface, no pits, thickness tolerance standard, suitable for products with high performance electronic insulation requirements, such as FPC reinforcement plate, PCB drilling pad, glass fiber meson, potentiometer carbon film printed glass fiber plate, precision planetary gear (chip grinding), precision test plate, electrical (electrical) equipment insulation brace bulkhead, insulation pad Transformer insulation board, motor insulation parts, grinding gears, electronic switch insulation board, etc.
FR-4 sheet metal has been widely used in electronic products such as military, communication, computers, digital circuits, industrial instruments, automotive circuits, etc., and all performance indicators can meet the needs of general industrial electronic products. Has a good price performance ratio
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