In the main speed, flexibility, low fuel consumption today, all brands of cars are implementing 'weight loss' plan, in addition to the simplest skin and skeleton replacement, a lot of car prices are from the metal tank fuel tank into a plastic tank , Which makes people have to question, is not the car prices and cut corners? Plastic fuel tank in the end it safe?
First of all, metal tanks are usually welded by two pieces of metal, it is easy to break the impact, and metal corrosion resistance is lower compared to plastic, it is prone to oil spills.
The plastic fuel tank is a one-time blow molding, can be made into a variety of shapes, so the pursuit of lightweight today, alone, the assessment of the advantages of weight, plastic fuel tank has become the first choice for many car prices.In addition it than the metal fuel tank More impact, cracking, and plastic elasticity than metal, by the impact can self-rebound, not only the friction will not produce sparks, even natural expansion will not cause an explosion.
However, the disadvantage of plastic fuel tank is impermeable, which means that gasoline will have volatile conditions, so in view of this situation, manufacturers generally use multi-layer plastic fuel tank.In fact, such a plastic fuel tank, than the ordinary metal fuel tank Higher costs, so most of the metal tanks are now placed in some low-end models.
However, there are exceptions, but also some luxury cars are used metal tank, but this metal tank, they use a special alloy, not only corrosion-resistant and not oil spill, after all, the luxury car materials certainly more attention to some.
Of course, no matter what kind of fuel tank, the kind of bullet we see in the movie, you can blow a car lens is a special effect, and a crash occurred a long time ago led to the accident of the fuel tank explosion, the main The reason is because of the poor location of the fuel tank installed.Nowadays the fuel tank is basically placed between the front and rear axles, and the metal has a high melting point, the fuel tank surface will be attached to the flame retardant material, so sporadic spark friction is completely worried.
However, in the choice of tank, you do not have brains, because all the tanks have passed the strict screening, so rather than worry about the tank, might as well improve their driving level!