The reinforcing plate is also called Stiffeners, reinforcing plate, reinforcing plate, support plate, reinforcing plate and reinforcing rib. Reinforcing plates are mainly used in construction, oil pipelines, machine equipment, electronic products, etc. It is widely used in FPC flexible circuit boards in electronic products. The reinforcing plate mainly solves the flexibility of the flexible circuit board, improves the strength of the plugged part, and facilitates the overall assembly of the product.
　　 The reinforcing plate mainly includes stainless steel reinforcing plate, aluminum foil reinforcing plate, polyester reinforcing plate, polyimide reinforcing plate, glass fiber reinforcing plate, polytetrafluoroethylene reinforcing plate and polycarbonate reinforcing plate. In the flexible circuit board industry, Guanghui, Baiqiang, Zecheng, BENCH, Growing, Buffett, and Yilian have done a good job.
　　 stainless steel
　　 It is not easy to be deformed and has high strength. It can play the role of conduction and induction. For example, the reinforcing steel sheet on the back of the gold finger is used to increase the hardness and thickness of the gold finger. It is easy to remove and insert. The thickness of the FPC steel is generally 0.1 mm, 0.12 mm, 0.15 mm, 0.18 mm, 0.2 mm, 0.25 mm, 0.3 mm, and the like. FPC steel reinforcement materials are stainless steel 304, 301 and so on. FPC steel is used in mobile phones, video phones, laptops, aerospace, medical equipment, digital cameras, automotive instruments and other pressing modules or FPCs for LCD components. It is currently used in mobile phone cameras. Conventional FPC reinforcing plates are generally formed by open grinding tools, but the stamping process is rough, the tolerance is large, and the precision is not high, the burrs are difficult to clean, and it is easy to form a short circuit or open circuit on the circuit board, most of the steel The film reinforcement is made by chemical etching. The etching process solves the requirements for high-precision parts in industrial production. The FPC reinforcing plate made by this advanced technology can achieve a minimum aperture of 0.1mm and a vertical wall. There is no burr; the flatness is kept below 0.02mm, and the minimum tolerance can be +/-0.01mm, which is a popular practice in China.
　　 Aluminum foil
　　 Generally used in areas with high heat dissipation requirements, such as table lamps, LED lights, is anodized, a variety of colors.
　　 Polyester reinforced board: Polyester (POLYESTER) reinforced board commonly used thickness of 125μm, 150μm, 155μm, 160μm, 165μm, 175μm, 180μm, 188μm, 223μm, 225μm, 228μm, 250μm, 282μm, 300μm, 350μm, etc. There are no parts for soldering parts.
　　 Polyimide
　　 Polyimide (POLYIMIDE) reinforcing plate has high temperature resistance, generally 25μm, 50μm, 75μm, 100μm, 125μm, 150μm, 175μm, 200μm, 225μm, 250μm, 275μm, 300μm, 350μm, 475μm, etc. Commonly used on FPC boards with soldered components.
　　 glass fiber
　　 The glass fiber reinforced plate is also called FR-4 (GLASS EPOXY) or FR4 and has thicknesses of 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm, 1.0 mm, 1.1 mm. , 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7m, 1.8mm, 1.9mm, 2.0mm, 2.2mm, 2.4mm, 2.5mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 100mm; divided into high temperature resistant FR4, flame retardant FR4, Ablative FR4, high strength FR4, high toughened FR4, antistatic FR4 board.