[Jiuzhi Plastics News] Most people pay more attention to the engine, safety configuration, fuel consumption and other aspects of the car when buying a car, but it is rare to hear someone care about the fuel tank material used in the car.
The fuel tank can be roughly divided into two categories according to the material. One is a metal fuel tank, including an iron fuel tank, an aluminum fuel tank, an aluminum-magnesium alloy fuel tank, and the like, and the second is a fuel tank of other materials, including an
engineering plastic fuel tank. Before the large-scale application of engineering plastics, most of the early automotive fuel tanks were made of metal. However, with the development of the automotive industry, more and more models are beginning to use fuel tanks made of engineering plastics. In fact, since the 1970s, European and Japanese auto companies began to replace iron tanks with plastic fuel tanks. After 2000, plastic fuel tanks accounted for more than 90% of the market in the US, EU countries and Japan. It seems that it seems that more and more vehicles are using plastic fuel tanks. The intuition of metal fuel tanks seems to generate sparks when they are hit. It is easy to ignite gasoline and cause explosions. Therefore, metal fuel tanks are really a safety hazard. ?
Can the material of the car tank determine its safety?
Metal fuel tanks are not as safe as engineering plastic fuel tanks?
We know that combustion requires temperature, oxygen, and combustion media. For the fuel tank, oxygen and combustion media are available, and it can be burned only after the temperature reaches a certain condition. At normal atmospheric pressure, the ignition point of gasoline is 427 degrees Celsius. To burn, high temperature conditions due to collision or other reasons are required. More extreme explosions require substances in the space to release their internal energy at an extremely fast rate and transform them into energy forms such as mechanical energy, light and heat. But this must have a certain degree of sealing in order for the gasoline to burn quickly to produce enough pressure.
From the material point of view, whether it is a metal fuel tank or a plastic fuel tank, the sealing performance is already very good, basically no oil leakage or oil leakage occurs, unless the material such as the oil pipeline is corroded or the fuel tank body is damaged by external force. In addition, no matter which material the tank is coated with anti-corrosion and flame retardant materials to ensure durability. Indeed, most of the metal fuel tanks are welded, and the welded parts are prone to breakage during impact. In extreme cases, fuel leakage occurs. The plastic fuel tanks are mostly blow molded, and the impact resistance and deformation cracking resistance of engineering plastic materials are also Better, this is also an important reason why engineering plastic fuel tanks are gradually replacing metal fuel tanks. But this does not mean that the metal fuel tank is equivalent to unsafe.
The metal fuel tank that seems to be explosive is actually higher in melting point than the plastic fuel tank. The maximum possibility of explosion comes from the external fire source that quickly enters the inside of the fuel tank, which quickly ignites the gasoline and causes the pressure to increase and explode. However, this probability is relatively low. It is more likely that the situation occurs when the fuel tank body or the oil pipeline melts due to collision and combustion, causing damage to the fuel tank, gasoline leakage and rapid combustion before the gasoline contacts the external fire source. The way to communicate with the outside world, not an instant explosion. Of course, for plastic fuel tanks, in the event of a collision or fire, the temperature rise will cause the fuel tank to melt rapidly, the oil will leak out and burn quickly, and the possibility of explosion will be much smaller than that of the metal fuel tank, but the combustion will be better than that of the metal fuel tank. ferocious. Therefore, it is not a comprehensive and objective statement to use the fuel tank material to determine whether the vehicle is safe.
Engineering plastic fuel tank is still the trend of the times
In fact, for the fuel tank material, consumers do not need to be too tangled. At present, the state does not have relevant regulations for the fuel tank material as a rigid regulation, but for metal fuel tanks, there are still relevant technical standards and inspection requirements. In other words, for the vast number of consumers, as long as you buy a new car through the formal channels in the market, the safety is still verified and certified by the state agency. As for the material used in the fuel tank, it is not what you need. tangled.
Analog ORP Sensor
ORP, also known as oxidation-reduction potential, represents the oxidation-reduction ability of water, and the unit is mV. When the ORP sensor reads a negative number, this means that the substance being measured is a reducing agent, and when the reading is positive, it means that it is measuring an oxidizing agent. The reading of ORP will reflect the degree of pollution or disinfection of water, and it is an important indicator of water quality. Although it cannot independently reflect the quality of water, it can reflect the ecological environment of water bodies in combination with other water quality indicators.
If the ORP value is low, it indicates that the content of reducing substances or organic pollutants in the wastewater treatment system is high, the concentration of dissolved oxygen is low, and the reducing environment is dominant.
If the ORP value is high, it indicates that the concentration of organic pollutants in the wastewater is low, the concentration of dissolved oxygen or oxidizing substances is high, and the oxidation environment is dominant.
Daruifuno online analog ORP sensor has two types of flat platinum and circular platinum, and the measurement range is also different. Customers can choose according to their needs. The simulated ORP electrode is a double-salt bridge design, Ag/Cl reference electrode, and we also have glass material and plastic case packaging models.
The simulated ORP electrode itself cannot transmit signals and needs to be equipped with a transmitter. Our online PH ORP Controller can be connected to the simulated ORP sensor to achieve more display, control and output functions. We can also customized the BNC connector.
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Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com