Epoxy board (FR-4)
Epoxy board (FR-4) features high mechanical and dielectric properties, good heat resistance and moisture resistance, and good machinability.
Use of epoxy board: used as insulating structural parts in motors and electrical equipment, including switches of various styles, electrical insulation, FPC reinforcement boards, carbon film printed circuit boards, computer drilling pads, mold fixtures, etc. (PCB test rack) and can be used in humid environment conditions and transformer oil, which is widely used.
Specification of epoxy board: 0.1-50 * 1.02M * 1.22M
main performance
Project unit: epoxy glass cloth laminate
Vertical impact strength ≥ Mpa 340
Parallel layer impact strength KJ/㎡ 33
Vertical layer electric strength ≥ (90+2 ℃ in oil) MV/m 14.2
Parallel layer impulse breakdown voltage ≥ (90+2 ℃ in oil) - KV 35
Relative dielectric constant ≤ - 5.5
Dielectric loss factor ≤ - 0.04
Insulation resistance after immersion ≥ Q 5 * 10
Water absorption 1mm ≤ Mg 18
Color - Natural
Nominal area of laminate: 1.02M * 1.22M
FR-4 Performance Characteristics
Vertical layer bending strength A: normal: E-1 ／ 150150 ± 5 ℃ ≥ 340Mpa
Parallel layer impact strength (simply supported beam method): ≥ 230KJ ／ m
Insulation resistance after immersion (D-24/23): ≥ 5.0 × 108Ω
Vertical layer electric strength (in 90 ± 2 ℃ transformer oil, plate thickness 1mm): ≥ 14.2MV/m
Parallel layer breakdown voltage (in transformer oil at 90 ± 2 ℃): ≥ 40KV
Relative dielectric constant (50Hz): ≤ 5.5
Relative dielectric constant (1MHz): ≤ 5.5
Dielectric loss factor (50Hz): ≤ 0.04
Dielectric loss factor (1MHz): ≤ 0.04
Water absorption (D-24/23, plate thickness 1.6mm): ≤ 19mg
density：1.70-1.90g／cm&；sup3；
Combustibility: FV0
Color: natural color
Executive standard: GB ／ T1303.1-1998
FR-4 process performance:
(1) FR-4 melting point of pressing plate in manufacturing process (203 ℃)
(2) High chemical resistance
(3) Low loss coefficient (Df 0.0025)
(4) Stable and low dielectric constant (Dk 2.35)
(5) Thermoplastic materials
FR-4 Application
FR4 epoxy glass fiber board (epoxy board; The main specifications are 1000 * 2000 mm, 1020mm * 1220mm. Because of the advantages of raw materials, it ensures high-quality and cheap, timely delivery, has a stable customer base at home and abroad, and enjoys a high reputation.
FR-4 copper clad plate
FR-4 yellow material and white material, FR-4 epoxy glass cloth laminate, according to different uses, are generally called FR-4 Epoxy Glass Cloth, insulating board, epoxy board, epoxy resin board, brominated epoxy resin board, FR-4, glass fiber board, glass fiber board, FR-4 reinforcement board, FPC reinforcement board, flexible circuit board reinforcement board, FR-4 epoxy resin board, flame retardant insulation board, FR-4 laminate, epoxy board, FR-4 optical board, FR4 glass fiber board, epoxy glass cloth board, Epoxy glass cloth laminate, PCB drilling pad. Main technical features and applications: stable electrical insulation performance, good flatness, smooth surface, no pits, thickness tolerance standard, suitable for products with high performance electronic insulation requirements, such as FPC reinforcement board, PCB drilling pad, glass fiber meson, potentiometer carbon film printed glass fiber board, precision planetary gear (wafer grinding), precision test plate, electrical (electrical) equipment insulation brace partition, insulation pad, Transformer insulation board, motor insulation parts, grinding gear, electronic switch insulation board, etc.
