Practical method competition of automobile deicing and defogging

Thin ice and not too thick snow on the window can be scraped off quickly with a hard card or a snow shovel. Driving in winter, the most annoying thing is getting up in the morning, and the car is covered with a thick layer of frost; Otherwise, it will fog as soon as the vehicle starts the window. Time in the morning is precious! The reporter sent the children to school for two consecutive days, and it took ten minutes to de-ice. The children were criticized for being two days late. How to quickly remove ice fog? There are many ways to introduce online. Which method is the most direct and effective? The reporters verified them one by one and asked experts to interpret them. Mixing of ice and heat: 10 minutes is the morning of 20 12 12 3 1. There was no obvious snowfall in Hangzhou that day, but the temperature was low. The windshield of the reporter's car was covered with a layer of snow-white frost, and the wiper and glass water were frozen. After the car started, the reporter immediately adjusted the air volume at the front air outlet to the maximum, but it took 2 minutes to turn on the air switch-experts told reporters that if the car started directly, the engine might be damaged due to overload. After turning on the air switch, 10 minutes passed, and the frost on the front baffle began to melt, fanning out near the air outlet of the front baffle and slowly melting. On the other hand, the side windows are thin ice, although there is almost no hot air blowing. Generally speaking, it takes reporters 15 minutes to clear the ice and snow on the front window and side window without any tools. On this day, the ice on the window is very thin. Comments: Some riders are worried that the hot air blowing on the frozen glass will cause the glass to burst, which is totally unfounded. But this method makes the car idle for a long time, which is not only easy to accumulate carbon, but also environmentally friendly. Scraping ice with a used bank card: Two minutes later, the reporter cleaned another car with an expired bank card-scraping ice directly with the card edge. Because the ice is not thick, it is easy to scrape. The reporter started from the thinner position in the middle of the front windshield, and it only took 1.5 minutes to scrape the front windshield clean. With the side window, the whole cleaning process takes no more than 2 minutes. Comments: It is the fastest and most environmentally friendly method to remove ice from glass with thick fuel card, supermarket card and bank card. However, if there is ice on the car body, you can't use this trick, which will damage the paint surface of the car body! Cover the ice with cardboard: no more than 10 second. 654381On the evening of October 3, the reporter put a layer of cardboard on the front bumper of the car. But this time the snow dried up, and the temperature was not too low the next day. On the morning of the 4th, there was 5 cm of snow on the cardboard, but it didn't freeze. It is very convenient to clear the snow. As long as the cardboard is removed, the whole process only takes a few seconds. Comments: Old cardboard, old sheets and old clothes can be put in the car and cleaned the next morning. It should be noted that the car must be dry before covering these things. If the car body is wet, these blocked tools are likely to freeze on the car body together. If it freezes, don't pull hard, or it will damage the car. Some riders cover up with old newspapers, which is not suitable, because newspapers are too thin and are more likely to freeze. Hot water to melt ice: I didn't try it because the glass cracked. The reporter once tested an old car with a broken windshield. When a cup of 90℃ water is poured on it, the crack expands instantly. It's no use! Expert comment: The temperature in Hangzhou is not too extreme. Generally, it is absolutely not advisable to splash windows with hot water at around 0℃. But warm water below 20℃, or directly poured with tap water, can also wash away the snow and help the ice layer melt faster. But if the temperature is too low, pouring cold water will make the ice thicker and thicker. If you travel to North Road in winter, don't use this technique! In addition, although water helps to melt ice, don't try to clean the front windshield with the water in the wiper-the wiper will start after spraying water, which may damage the wiper blade and even burn the wiper motor. Use salt and open the window: it is not recommended to use other methods circulated by netizens. Considering the insecurity, the reporter did not experiment and consulted an expert. One is to use salt. The netizen said, won't the traffic police sprinkle salt on the highway in snowy days? Can you salt the ice? Experts say that salt is scattered on the road and mixed with snow. After being crushed, it is not easy to freeze when mixed with vehicles. But salt lowers the melting point instead of melting as soon as it touches ice; In addition, when salt touches the car body, it will corrode the car body and even penetrate into the car, causing great harm to the car. Another method is to open the window after parking the day before, let the car cool down completely, and leave a gap at night-netizens who support this method believe that if the car body temperature is not high, the snow will not freeze when it falls on the car, and it will be much easier to remove the snow the next day. Experts have tried this trick and found that the effect is not good: it may not be completely cold after waiting for more than ten minutes; If you master the correct method, it only takes 2 minutes to de-ice. Why bother? In addition, if it rains a little sleet first, your car will get wet to varying degrees! Fogging: If it is hot for more than 5 minutes and cold for 1 minute, it is easy to fog on the crown block, which gives the driver a headache. The reporter's deepest personal experience happened at noon on 201215, when it was raining lightly and driving on the Hangzhou-Guizhou Expressway, the window suddenly began to fog. Because it was a hot car, the reporter immediately turned on the air switch of the hot car. However, after five minutes of persistence, although it was obvious that the wind blowing from the air was very hot, the fog in the front block still showed no signs of fading, and the reporter could only wipe it carefully with a rag while driving. But driving at high speed is too dangerous. Seeing whether the hot air can disperse the fog, the reporter quickly changed his mouth to blow cold air. This time, after about 1 minute, the fog on the front windshield and even the side window glass will disappear immediately. However, when I turned on the hot air setting again, the fog immediately condensed on the front gear. Expert comment: if it is a high-end car, whether it is cold or hot, the fog will definitely be eliminated in 3~5 minutes, and the difference will not be great. However, the air outlet design of middle and low-grade cars is not necessarily scientific, and the air volume is too small, so the heat dissipation and defogging must be faster than hot air. However, when the cold wind blows in winter, people in the car will feel uncomfortable. It is suggested that after blowing cold air for a period of time, the temperature gradually rises to a temperature suitable for human body. But this process can't be done in one step, otherwise, as mentioned above, it will soon be in a fog. In addition, when driving in wet weather, don't suddenly replace the internal circulation with the external circulation, otherwise the cold and wet air suddenly enters the warm car and is prone to fog.

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