How to use X-ray fluorescence fusion machine in refractory industry?

The application of X-ray fluorescence fusion machines in the refractory industry is primarily reflected in their high-temperature fusion preparation technology, which produces uniform, mineral- and particle-free glass sheets for X-ray fluorescence (XRF) analysis, thereby improving the accuracy and efficiency of chemical composition testing. The following are its specific application scenarios and technical features:

I. Core Application Scenarios
Precise Chemical Composition Analysis
Refractory materials require testing for the content of high-melting-point components such as aluminum oxide (Al₂O₃), magnesium oxide (MgO), silicon oxide (SiO₂), and calcium oxide (CaO). X-ray fluorescence fusion machines fuse the sample and flux into a uniform glass sheet at high temperatures (typically 1100-1250°C), eliminating the particle and mineral effects associated with traditional powder pressing methods and significantly improving XRF analysis accuracy. For example, the Haina HNJC-L6D fusion machine supports simultaneous melting of six samples, making it suitable for large-scale refractory material testing.

Pretreatment of Complex Samples
Refractory materials often contain refractory components such as carbides and nitrides. The high temperature and oscillating design of the fusion machine (such as ±55° bidirectional oscillation + spin) promotes thorough sample mixing and removes bubbles, ensuring uniform melts. For example, the ESI-900 fusion machine's pre-oxidation function simplifies the processing steps for samples such as ferroalloys, reducing manual labor.

Standardized Testing Process
According to national standards (such as GB/T 21114-2007), the fusion machine paired with an XRF spectrometer can rapidly analyze the composition of refractory materials, covering analysis from major elements (such as Al and Si) to trace elements (such as F and N), meeting industry quality control requirements.

II. Technical Advantages and Industry Compatibility
1. High-Temperature Performance and Temperature Control Accuracy
Refractory melting requires a high-temperature environment. Mainstream models such as the Haina HNJC-L6D can reach temperatures up to 1250°C, with a temperature control accuracy within ±1°C, ensuring complete melting of high-melting-point components without volatilization losses. Some models utilize a new zirconium corundum furnace material with a temperature resistance of up to 1350°C, extending service life.
2. Automation and Efficiency Improvement
Fully automatic sample fusion machines (such as the HNJC-T4) support touchscreen programming and one-touch operation. Equipped with a robotic arm for automatic sample loading and unloading, they can process 4 to 6 samples at a time, with a melting speed of approximately 10 to 18 minutes per batch, significantly improving laboratory efficiency.
3. Corrosion Resistance and Safety Design
Refractory melting may release corrosive gases (such as halogens). Built-in fume exhaust ducts and acid-resistant ceramic brackets (such as the HNJC-L6D) minimize corrosion to the furnace and crucible. Multiple protection features (overtemperature alarm and burnout protection) ensure safe operation.

III. Typical Equipment Comparison and Selection Recommendations

Model                                Maximum Temperature          Melting Position                        Core Function                                                                        Applicable Scenario
JZJ HNJC-L6D                               1250°C                           6-Position              Dual Swing + Spin,Smoke Exhaust Channel                          High-Voltage High-Precision Inspection

Selection Recommendations:

• For high-volume testing: Prefer 6-station models (such as the HNJC-L6D or ESI-900) that support multi-station parallel processing.

• For high-precision testing: Focus on temperature control accuracy (±0.1°C to ±1°C) and swing angle (40° to 55°) to ensure uniformity of the melt.

• For special samples: Choose models with pre-oxidation or corrosion-resistant designs suitable for complex samples such as ferroalloys and carbon-containing refractory materials.

IV. Industry Development Trends and Challenges
1. Intelligence and Integration
Future fusion machines will be more deeply integrated with AI temperature control systems and remote monitoring capabilities, enabling automated data recording and analysis, and driving the intelligent development of refractory testing.2. Green and Sustainability
The refractory industry emphasizes efficient resource utilization. Fusion machines need to further reduce energy consumption (e.g., by adopting high-frequency induction heating) and adapt to the testing needs of recycled raw materials.
3. High-Temperature Performance Upgrade
As refractory materials evolve toward ultra-high temperatures (>2000°C), fusion machines need to improve the temperature resistance of heating elements (e.g., silicon carbide rods) and furnace materials to meet the testing needs of emerging materials.

Summary: X-ray fluorescence fusion machines, with their efficient and precise sample preparation technology, have become core equipment for chemical composition analysis in the refractory industry. Their high-temperature performance, automated design, and corrosion resistance significantly improve testing efficiency and data reliability. As refractory materials evolve toward higher performance and environmentally friendly performance, fusion machines will need to continue to be optimized to meet higher technical standards.