FR4 epoxy tubes are widely used in the electronics industry

FR4 epoxy tube is a high-performance insulating material widely used in electronics, electrical engineering and multiple industrial fields. The following is a detailed introduction to FR4 epoxy tube:

Basic composition and manufacturing process

Basic composition: FR4 epoxy tube is mainly composed of electrical alkali-free glass fiber cloth and high-quality epoxy resin. The glass fiber cloth provides mechanical strength and dimensional stability, while the epoxy resin gives the material excellent electrical insulation properties and chemical stability.

Manufacturing process: The glass fiber cloth impregnated with epoxy resin is processed by baking and hot pressing to form a tubular structure with a specific cross-sectional shape (such as a circle).

The insulation grade is F, and the main colors are white (primary color), light green, black and yellow.

Main features of FR4

FR4 epoxy tube has the following technical characteristics:
1.High mechanical properties: FR4 epoxy tubes have high mechanical strength and can withstand large mechanical stress and are not easy to break or deformation, which makes them ideal for the manufacture of precision instruments and high-end equipment.
2.Excellent electrical performance: FR4 epoxy tube has stable electrical insulation performance, which can effectively prevent current leakage and short circuit and provide reliable guarantee for the safe operation of electrical equipment. Its high insulation resistance and low dielectric loss make it excellent in high-voltage electrical appliances, electronic circuits and other fields.
3.Good heat and moisture resistance: FR4 epoxy tube can maintain stable performance in high temperature and humid environments and it is not easy to deform or age, which makes it work normally under harsh environmental conditions.
4.Good flame retardant performance: FR4 epoxy tube has flame retardant performance, which can prevent the spread of fire to a certain extent and provide protection for the safe use of electronic products.

How can FR4 be used in the electronics industry?

FR4 epoxy tubes are widely used in the electronics industry, and their applications are diverse.
1. As insulation material
FR4 epoxy tube has excellent electrical insulation properties, so it is often used as an insulating structural component in motors and electrical equipment. For example, in all kinds of switches, FPC reinforcement, electrical insulation, mold fixtures, etc., FR4 epoxy tubes play an important insulation role. It can be used in wet environmental conditions and transformer oil to maintain stable insulation performance and ensure the normal operation of electronic equipment.

2.As a circuit board substrate

FR4 epoxy tube is an important substrate for making multi-layer printed circuit board (PCB). It is a kind of substrate with epoxy resin as binder and electronic grade glass fiber cloth as reinforcement material. Through a specific process treatment, it can be made into a tubular structure with a specific cross-section shape, which is used to make high-performance electronic insulation products. In the PCB manufacturing process, FR4 epoxy tubes provide stable electrical performance and mechanical strength to support stable operation of the board.

3.As transformer bushing or circuit breaker bushing

FR4 epoxy tubes often use oil or gas as an insulating medium and are generally made into transformer bushings or circuit breaker bushings. These bushings are able to withstand higher voltage levels which are typically below 35 kV. When the voltage exceeds 35 kV, the conductor can be covered with an insulating tube or cable to strengthen the insulation. Therefore, FR4 epoxy tubes are also widely used in ultra-high voltage transformers and circuit breakers.

Ztelec Group is a professional manufacturer of high-quality electrical insulation materials with more than sixty-five years of manufacturing experience. If you need more product information and quotes, please contact us.