为分析微波融冰速率，优选多种吸波集料及粉料进行性质分析，确定不同材 料、结构的混凝土配合比，并成型试件。对所制备的多种吸波道面结构混凝土试件进行 微波加热试验，测得混凝土试件表面的温度变化情况，分析得到不同因素对吸波道面混 凝土升温特性的影响规律，并提出基于表面升温特性规律的吸波道面结构。结果表明: 波导口距离的减小可以一定程度上提高混凝土试件表面的升温速率; 底屏、自由状态吸 波混凝土试件升温速率明显高于侧屏、全屏状态; 试件厚度增加会导致表面升温速率降 低; 随着混凝土含水量升高混凝土表面吸波升温速率有所降低; 吸波表层结构较分层式薄 层结构具有更加高效的融冰效率。最终基于表面升温特性推荐了 3 种典型吸波道面结构。

In order to analyze the microwave ice melting rate，the properties of various kinds of absorbing aggregates and powders were analyzed to determine the concrete mix ratio of different materials and structures． Microwave heating test was carried out on various prepared concrete specimens of absorbing channel surface structure． By measuring the temperature change on the surface of the concrete specimen，the regularity of the influence of different factors on the temperature rise was analyzed，and the structure of the absorbing channel surface based on the law of the surface temperature rise was proposed． The results show that，the reduction of the waveguide opening distance can increase the temperature rise rate of the concrete specimen surface to a certain extent; the temperature rise rate of the bottom screen and free state wave-absorbing concrete specimens is significantly higher than that of the side screen and full screen state; the increase in the thickness of the part will cause the surface heating rate to decrease; the concrete surface absorbing heating rate decreases with the increase of the concrete moisture content; the absorbing surface structure has more efficient ice melting than the layered thin layer structure． Finally，3 typical absorber surface structures were recommended based on the surface heating characteristics．