Date：2019-05-08 Categories：Industry News Hits：369
1、 Aluminum substrate
Aluminum substrate is a kind of metal based copper clad laminate with good heat dissipation function. Generally, the single panel is composed of three layers: circuit layer, insulation layer and metal base layer. For high-end use, there are also double-sided boards, the structure is circuit layer, insulation layer, aluminum base, insulation layer, circuit layer. Very few applications are multi-layer boards, which can be made of ordinary multilayer boards, insulation layer and aluminum base.
1. Advantages of aluminum substrate
(1) The heat dissipation is obviously better than the standard FR-4 structure.
(2) The thermal conductivity of the dielectric used is usually 5 to 10 times that of conventional epoxy glass, and its thickness is only one tenth.
(3) Heat transfer index is more efficient than traditional rigid pcb.
(4) A lower weight of copper than shown in the IPC recommended figure can be used.
2. Application of aluminum substrate
(1) Audio equipment: input, output amplifier, balanced amplifier, audio amplifier, preamplifier, power amplifier, etc.
(2) Power supply equipment: switch regulator, DC / AC converter, SW regulator, etc.
(3) Communication electronic equipment: high frequency amplifier, filter electric apparatus, transmitting circuit.
(4) Office automation equipment: motor driver, etc.
(5) Automobile: electronic regulator, igniter, power controller, etc.
(6) Computer: CPU board, floppy disk drive, power supply device, etc.
(7) Power module: converter, solid state relay, rectifier bridge, etc. WeChat official account: Shenzhen LED chamber of Commerce
Aluminum substrate is widely used in audio equipment, power supply equipment, communication electronic equipment, office automation equipment, automobile, computer and power module.
2、 Fiberglass board
Glass fiber board alias: glass fiber heat insulation board, glass fiber board (FR-4), glass fiber composite board, by the glass fiber material and high heat resistance composite material synthesis, does not contain harmful asbestos to human body. It has high mechanical and dielectric properties, good heat resistance and moisture resistance, and good processability. For plastic mold, injection mold, machinery manufacturing, molding machine, drilling machine, injection molding machine, motor PCB.ICT Fixture, table grinding pad.
Fiberglass board is wrapped with cloth and leather to make beautiful wall and ceiling decoration, which is widely used. With sound absorption, sound insulation, heat insulation, environmental protection, flame retardant and other characteristics.
1. Advantages of fiberglass board
(1) It has high mechanical and electrical resistance, good heat and moisture resistance, and good processability. Generally used in plastic mold and machinery manufacturing.
(2) Injection mold molding usually requires: high temperature material and low temperature mold. Heat insulation method must be adopted under the same condition. Keep the injection mold at a low temperature and do not make the injection machine too hot. This requirement can be met by installing insulating insulation board between injection mold and injection machine. Shorten the production cycle, improve productivity, reduce energy consumption, improve product quality, continuous production process to ensure product quality stability, prevent machine overheating, no electrical failure, hydraulic system no oil leakage. WeChat official account: Shenzhen LED chamber of Commerce
2. Application of fiberglass board
(1) Construction industry: can do cooling tower, building structure, indoor equipment and decoration, glass fiber reinforced plastic plate, decorative plate, and solar energy utilization device and so on.
(2) Chemical industry: it can be used as corrosion-resistant pipeline, corrosion-resistant pump and its accessories, as well as grid, ventilation facilities and wastewater and sewage treatment equipment.
(3) Automobile and railway transportation industry: it can be used as automobile shell and other parts of components, as well as the body shell, door, inner panel and instrument panel of large passenger cars; in the part of highway construction, there are road signs, isolation piers and highway guardrails, etc.
(4) Glass fiber board performance, glass fiber board, can be used for soft package base, the outside is covered with cloth, leather, etc., can be made into beautiful wall and ceiling decoration.
(5) It has the advantages of sound absorption, sound insulation, heat insulation, environmental protection and flame retardant. Because of its good insulation property, it has been used in radar shell, and it is also a good anti-corrosion material. Now it has been widely used in chemical industry. Fiberglass board has the advantages of strong plasticity.
3、 Three differences between aluminum substrate and fiberglass board
1. In terms of price
Fiberglass board and aluminum substrate in the price comparison, fiberglass board price will be significantly cheaper.
2. Technology
Fiberglass board can be divided into three types according to different materials and manufacturing processes: double-sided copper foil fiberglass board, perforated copper foil fiberglass board and single-sided copper foil fiberglass board. Of course, the price of fiberglass board made of different materials will be different.
3. Performance
Due to the good thermal conductivity of aluminum substrate, the heat dissipation performance of aluminum substrate is much better than that of glass fiber board.