Application of fr4 epoxy board in traffic

Each of us will be exposed to travel matters in our lives. There are many kinds of transportation means, the common ones are cars, planes, subways, and trains. Then we know that in the construction of subways and trains, fr4 epoxy boards are indispensable!

אז איך להשתמש לוח אפוקסי FR4 in subway or train? The material requirements used in the subway must be very high, so how is fr4 used?

Let’s take a look at the specific properties of FR-4 epoxy board. It has high strength, light weight, high temperature resistance, corrosion resistance, friction resistance, insulation, flame retardant, low moisture absorption, and good dielectric properties. The high temperature resistance can reach 150 ℃, and it is not afraid of contact with acid, alkali, salt, alcohol, and oil. It has high breakdown voltage and can work continuously for a long time.

FR-4 epoxy board has many uses. It can manufacture various styles of switches, insulating parts in electrical equipment, drilling covers, and transformer accessories. After covering it with copper foil, it can also be processed into printed circuit boards. Now almost all electronic products use printed circuit boards, and the same is true for electronic products used in subways.