毛细管法测定熔点的影响因素探究  

Study on the Influencing Factors of Melting Point Determination by Capillary Tube Method

作　　者：段泽平 朱文嘉 李丽 黄慧兰 韩红兰 张小琼 DUAN Zeping;ZHU Wenjia;LI Li;HUANG Huilan;HAN Honglan;ZHANG Xiaoqiong(Yunnan Tin Industry New Materials Company,Kunming 650501,China)

机构地区：[1]云南锡业新材料有限公司,云南昆明650501

出　　处：《湖南有色金属》2025年第1期102-105,共4页Hunan Nonferrous Metals

基　　金：云南省科技厅科技人才与平台计划(202405AK34005)。

摘　　要：采用MP80熔点仪对结晶物质的熔点进行测定试验,主要从样品的干燥度、填装紧密度、填装高度、仪器的起始温度和升温速率这五个方面,对两种标准物质的熔点进行了测试。试验结果表明,样品需要干燥、研磨细、填装实,最佳填装高度为2.5~3.0mm,起始温度设置在比预期效果温度低5K,升温速率设定为1K/min时较佳。The MP80 melting point meter was used to determine the melting point of crystalline materials in experiments,mainly testing the melting points of two standard materials from five influencing factors:sample dryness,filling tightness,filling height,instrument starting temperature,and heating rate.The experimental results show that the sample needs to be dry,finely ground,and filled tightly.The optimal filling height is 2.5~3.0 mm,and the starting temperature is set at 5 K lower than the expected effect temperature.The optimal heating rate is set at 1K/min.

关 键 词：熔点 毛细管 测定 温度 

分 类 号：TG115.2[金属学及工艺—物理冶金]