水玻璃砂微波加热过程温度场测试与分析

Measure and Analysis on the Temperature Field of Sodium Silicate Bonded Sand Heating by Microwave Energy

通过系统测试和分析水玻璃砂在微波加热过程中的温度场，揭示了水玻璃砂微波加热的快速升温及型芯内外同时升温等特性。通过实验和分析，探讨了形成这些特性的原因。提出了微波加热过程中水玻璃砂型芯的升温主要依赖于水玻璃对微波的吸收的观点。

The temperature field of sodium silicate bonded sand heating by microwave energy is measured and analyzed by the related characteristic quentities. The result shows that sodium silicate bonded sand heating by microwave energy has characters such as temperature rising speedy and heating occurring from inside to outside at the same time. The reasons of those characters are discussed by testing and analyzing. The viewpoint that the temperature rising of sodium silicate bonded sand heating by microwave energy is revocable by sodium silicate absorbing microwave energy is proposed. The results of this study are useful on rightly understanding the essentials of the heating by microwave energy for sodium silicate sand and rightly constituting heating technology.