GGB-1型X射线荧光光谱分析高频感应熔样机的性能与应用

介绍自行研制的GGB-1型X射线荧光光谱分析高频感应熔样机的特点及性能。采用高频感应加热技术和全自动微机控制技术,设计了温度锁相环控制系统,通过控制高频功率发生器输出振荡电流的大小来控制加热速度和温度,使熔样过程智能化、自动化。研究设计的混匀装置,可同时摇摆与自旋,熔融体形成涡流,使熔融体更均匀。根据X射线荧光光谱分析制样的特点,设计了预氧化过程,更适合于矿石类样品的熔融制样。产品的性能测试结果表明,该熔样机的最高温度为1300℃,温控精度为±2℃,各元素制样精密度优于0.3%(RSD,n=11)。

The Performance and Application of GGB-1 Bead Maker with High Frequency Induction Heating in X-ray Fluorescence Analysis

GGB-1 bead maker with high frequency induction heating for sample preparation in X-ray fluorescence analysis has been developed.High frequency induction heating and automatic micro-computer control technology were used and the temperature phase-locked loop system was devised.The heating speed and temperature could be controlled by the oscillation current output from high frequency generator,which provided the intelligent and automatic fusing procedure.The molten sample homogenizer was devised,which could swing and spin synchronously and form electric eddy in flux to attain homogenous bead.Based on sample preparation characteristic of XRF analysis,pre-oxidation process was designed for ore sample analysis.The results from equipment performance testing showed that the highest fusion temperature of bead maker was 1300℃ with temperature fluctuation of ±2℃ and the precision of sample preparation was better than 0.3%RSD(n=11).