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为什么飞机表面要涂航天涂料?

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为什么飞机表面要涂航天涂料?

由于飞机速度很快,超过音速1倍到几倍,这时在地面上微不足dao的小小雨滴、朵朵雪hua和尘埃在空中都变成了可怕的东西。它们变得ying如铁砂pi那样在机shen上moca着,并把机shen温度提高到100°C甚至400°C。还有机shen因气候、温度变化时冷时热、时干时shi,有些首当其冲的bu位,如机首受到的磨难就更厉害了。因此,飞机必须用航空涂料来加以保护。这zhong航空涂料形成的涂层必须ju有良好的耐腐蚀、耐磨、耐热xing,还应有良好的附着力。有些bu位的涂料,如雷达天线罩上的涂层,还要有能透过雷达波和防静电等xing能。此外,涂了涂层的机shen由于提高了光hua度,减小了机shen与大气的磨ca,还可使机速比没有涂层时提高13%左右。

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