Why are fuel tanks commonly made of resin materials?
2 Answers
The reasons why fuel tanks are commonly made of resin materials are: 1. Resin materials do not generate sparks during collisions, while metal materials are more prone to sparking; 2. In the event of extremely severe collisions or traffic accidents, metal fuel tanks are more likely to explode due to their higher strength compared to resin fuel tanks, making resin fuel tanks theoretically safer than metal ones. A fuel tank refers to the container on a car used to store gasoline, usually located at the rear of the vehicle, shaped like a square, made of stainless steel, with excellent sealing and only a small circular inlet for easy storage. Fuel tanks can be divided into two types: open fuel tanks and closed fuel tanks.
Resin fuel tanks have almost become the mainstream configuration these days. I once overheard a mechanic talking about this at a repair shop. Metal fuel tanks are prone to deformation and fuel leakage upon impact, whereas resin materials are elastic like rubber candy, bouncing back significantly after being squeezed. Moreover, when driving on rough roads, the collision between a resin fuel tank and the chassis produces a dull thud, unlike the loud clanging of a metal barrel. Nowadays, many car chassis are packed tightly, and designers particularly favor the malleability of resin materials, which allows them to mold various unconventional shapes to fit into tight corners. By the way, in the past, there was always the worry of metal fuel tanks rusting during winter car washes, but with resin, this concern is completely eliminated. Nowadays, ethanol gasoline is commonly seen at gas stations, and resin's corrosion resistance is notably stronger than that of metal.
