本教具是根据初中物理中海波熔化实验不易成功图 1的难题而立意设计制作的 .传统的熔化仪器及方法 ,不能保证海波熔化过程所测温度恒定 ,其关键所在是包围在温度计液泡周围的熔液稍微吸热就要升温所致 .本教具以固液分离方法 ,也正抓住这一关键 ,及时将熔化出液体与待熔固体分? The teaching aids are designed based on the difficult problem of the hypothesis that the hypothermic melting experiment in junior high school physics experiment is not successful. The traditional melting instrument and method cannot ensure that the temperature measured during the sea wave melting process is constant. The key lies in the surrounding of the thermometer bubble. The slight absorption of heat by the melt causes a rise in temperature. This teaching aid uses a solid-liquid separation method and is also grasping this key. In time, the molten liquid will be separated from the solid to be melted.