Fiberglass board, outside covered with cloth, leather, etc., to make a beautiful wall, ceiling decoration. It is widely used. It has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection, flame retardant and so on.
Alias of glass fiber board: glass fiber insulation board, glass fiber board (FR-4), glass fiber composite board, made of glass fiber material and high heat resistance composite material, without harmful asbestos ingredients. It has higher mechanical properties and dielectric properties, better heat resistance and moisture resistance, and has good workability. Used in plastic molds, injection molds, machinery manufacturing, molding machines, drilling machines, injection molding machines, motors, PCB.ICT fixtures, tabletop grinding pads. Injection molds usually require high-temperature materials and low-temperature molds. The heat insulation method must be adopted under the same machine condition. Keep the injection molding temperature low while not overheating the injection molding machine. This requirement can be met by installing an insulation board between the injection mold and the injection machine. Shorten the production cycle, increase productivity, reduce energy consumption, improve the quality of finished products, continuous production process to ensure product quality stability, prevent overheating of the machine, no electrical failures, no oil leakage in the hydraulic system.
Advantages of glass fiber board
Has high mechanical properties and electrical resistance, as well as good heat resistance and moisture resistance, as well as good workability. Generally used in plastic mold and machinery manufacturing.
Requirements for injection mold molding: high temperature and low temperature; heat insulation method must be used under the same machine condition, and the temperature of the injection molding machine cannot be too high, nor can injection molding be low temperature. Just install an insulation board between the injection mold and the host. It can shorten production time, thereby increasing productivity, reducing energy consumption, and improving the quality of finished products.
The use of fiberglass board
1. Construction industry: can be used for cooling towers, building structures, indoor equipment and decorative parts, FRP flat panels, decorative panels, and solar energy utilization devices, etc.
2. Chemical industry: it can be used as corrosion-resistant pipes, corrosion-resistant delivery pumps and their accessories, as well as grilles, ventilation facilities and wastewater and sewage treatment equipment, etc.
3. Automobile and railway transportation industry: it can be used as car shell and other parts, as well as the body shell, door, inner panel and instrument panel of large passenger cars; in the road construction part, there are street signs, isolation pier and highway guardrail and many more.
4. Glass fiber board performance, glass fiber board, generally can be used for soft package base layer, and then coated with cloth, leather, etc., can be made into beautiful wall and ceiling decoration.
5. Often extensive, and has the advantages of sound absorption, sound insulation, heat insulation, environmental protection, flame retardant and so on. The good insulation properties make it already used in radar enclosures. At the same time, it is also a good anti-corrosion material, which has been widely used in the chemical industry. Glass fiber board has the advantage of strong plasticity.
What is an aluminum substrate
Aluminum substrate is a metal-based copper-clad plate with good heat dissipation function. Generally, a single panel is composed of a three-layer structure, which is a circuit layer (copper foil), an insulating layer and a metal base layer. For high-end use, some are designed as double-sided panels, and the structure is a circuit layer, an insulating layer, an aluminum base, an insulating layer, and a circuit layer. Very few applications are multi-layer boards, which can be formed by laminating ordinary multi-layer boards with insulating layers and aluminum bases.
Advantages of aluminum substrate
The heat dissipation is obviously better than the standard FR-4 structure.
The dielectric used is usually 5 to 10 times the thermal conductivity of conventional epoxy glass, and one tenth of the thickness
Heat transfer index is more efficient than traditional rigid PCB.
You can use a lower copper weight than shown in the IPC recommendations.
The use of aluminum substrate
1. Audio equipment: input, output amplifier, balance amplifier, audio amplifier, pre-amplifier, power amplifier, etc.
2. Power supply equipment: switching regulator `DC / AC converter` SW regulator, etc.
3. Communication electronic equipment: high-frequency amplifier `filtering appliance` sending 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 relay` rectifier bridge etc.
Aluminum substrates have a wide range of applications. General audio equipment, power supply equipment, communication electronic equipment, office automation equipment, automobiles, computers, power modules all have aluminum substrates.
Three major differences between glass fiber board and aluminum substrate
1. The price
The important components of LED fluorescent tube are: circuit board, LED chip and driving power supply. Commonly used circuit boards are divided into two types: aluminum substrate and glass fiber board.
Comparison of the price of glass fiber board and aluminum substrate, the price of glass fiber board will obviously be much cheaper, but the performance of aluminum substrate will be more superior with glass fiber board.
2. Technology
The glass fiber board can be divided into three types of double-sided copper foil glass fiber board, perforated copper foil glass fiber board and single-sided copper foil glass fiber board according to the different materials and manufacturing processes. The price will also be different. The price of glass fiber board produced by different materials and processes is also different. The LED fluorescent tube using glass fiber board is not as good in heat dissipation as the LED fluorescent tube using aluminum substrate.
3. Performance
Everyone knows that the aluminum substrate has good heat dissipation performance, and its heat dissipation performance is much better than that of the glass fiber board. Because the aluminum substrate has good thermal conductivity, the aluminum substrate plays an important role in the field of LED lamps.