CAJ | 학술논문

二元硝酸盐是非常重要的传热介质，通过熔融法制备混合盐试样，利用差示扫描量热法和蓝宝石法分别研究测定了 KNO 3-NaNO 2混合盐的热物性以及比热值。研究结果表明，二元硝酸盐具有较低的熔点和良好的热稳定性，适宜的工作温度在200~430℃之间。熔盐的比热值随成分不同有所变化，但在工作温度范围内变化很小。为熔盐的使用工艺改进提供了数据支持。
이원초산염시비상중요적전열개질，통과용융법제비혼합염시양，이용차시소묘량열법화람보석법분별연구측정료 KNO 3-NaNO 2혼합염적열물성이급비열치。연구결과표명，이원초산염구유교저적용점화량호적열은정성，괄의적공작온도재200~430℃지간。용염적비열치수성분불동유소변화，단재공작온도범위내변화흔소。위용염적사용공예개진제공료수거지지。
Binary nitrate salt was an important heat transfer medium.Mixed salt samples were prepared by mol-ten method.The thermal physics and specific heat capacity of the mixed salt consisted of KNO 3 and NaNO 2 were studied and measured separately by differential scanning calorimetry (DSC)and sapphire method.The re-sults showed that binary nitrate salt has low melting point and good thermal stability.The optimal operating temperature was between 200 and 430 ℃.The specific heat capacity of molten salt changes with the composition but changes little in the operating temperature.This experimental research provided data support for improving heat treatment process.