Luoyang Turner High Temperature Instrument Co., Ltd., Ltd.

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The application of fire assay cupellation in metal materials analysis

Cupellation is a traditional method for analyzing metallic materials. Its principle involves using high temperatures to decompose metallic materials into oxides, and analyzing trace elements in the metallic materials through the sweeping and reduction reactions of the oxides. This article introduces the application of cupellation in the analysis of metallic materials. I. Operating Principle of Cupellation Cupellation uses high temperatures to decompose metallic materials into oxides, and analyzes trace elements in the metallic materials through the sweeping and reduction reactions of the oxides. The cupellation experiment is divided into the following steps: 1. Place the metal sample in the furnace and decompose it into oxides under high-temperature conditions. 2. Use airflow to sweep the oxides into the cupel containing the reducing agent. 3. Under the action of the reducing agent, the oxides are reduced to pure metals or metal compounds. 4. Analyze the trace elements in the reduced metal compounds through chemical reactions. II. Application of Cupellation in the Analysis of Metallic Materials Cupellation is widely used in the analysis of metallic materials, mainly for analyzing trace elements in metallic materials. Common applications include: 1. Geological exploration Cupellation is widely used in geological exploration to analyze trace elements in ores,

2023

History and development of fire assay cupellation

2023

Operating techniques and maintenance of a fire assay cupellation furnace

The cupellation furnace is a traditional method for analyzing metallic materials. Operational skills and maintenance are crucial for ensuring accurate analysis results and a long service life for the equipment. This article introduces the operational skills and maintenance methods for the cupellation furnace. Part 1: Operational Skills of the Cupellation Furnace 1. Sample Preparation: Sample preparation is key to accurate analysis results. Samples must be dry, uniform powders, and free of impurities. 2. Cleaning the Furnace Body: Cleaning the furnace body is key to ensuring accurate analysis results. Before each use, the inside of the furnace body must be thoroughly cleaned to avoid sample contamination and the influence of impurities inside the furnace body on the analysis results. 3. Furnace Heating: Furnace heating is key to ensuring accurate analysis results. The furnace must be heated evenly and must not be overheated to avoid affecting the analysis results and the service life of the furnace. 4. Airflow Adjustment: Airflow adjustment is key to ensuring accurate analysis results. The airflow must be stable and not too large or too small to avoid blowing away oxides or inaccurate analysis results. 5. Blowing Time: Blowing time is key to ensuring accurate analysis results. The blowing time must be accurately controlled; too short or too long will affect the analysis results. Part 2: Maintenance of the Cupellation Furnace 1. Cleaning the Furnace Body: Regularly clean the furnace body...

2023

Parameters of melting point, melting rate, and melting performance

Melting point and melting rate are two important parameters describing the melting performance of a material: 1. Melting point: When a material absorbs heat and its temperature rises to a certain value, the temperature at which the solid transforms into a liquid is called the melting point of that material. It is an important temperature data in the material phase transition temperature, reflecting the ease of melting of the material. Materials with high melting points have stronger chemical bonds between their atoms or ions, making them more difficult to melt, and vice versa. The melting point order of common metals is: W>Mo>Ta>Nb>Ni>Co>Fe>Cu>Al>Mg>Zn>Pb>Sn>Bi. 2. Melting rate: Under a certain degree of superheat, the amount of material melted per unit time is called its melting rate. It reflects the reactivity and ease of melting of the material under melting process conditions. Melting point and melting rate are determined by many factors, mainly: (1) Temperature. The higher the temperature, the more intense the molecular motion, the faster the melting reaction rate, and the greater the melting rate. (2) Superheat. Superheat is the difference between the actual temperature and the melting point temperature, reflecting the amount of heat supplied. The greater the superheat, the faster the melting rate. (3) Raw material properties. Located in the periodic table of elements

2023

TNKRY series X-ray fluorescence detection dedicated melting point and melting rate tester, to help high-temperature laboratory equipment manufacturing

The TNKRY series X-ray fluorescence detection dedicated melting point and melting rate tester is a highly efficient laboratory device that assists laboratory researchers in conducting melting point and melting rate tests under high-temperature environments. Using this instrument significantly improves the efficiency of laboratory researchers while ensuring the accuracy of experimental results. Melting point and melting rate are crucial experimental parameters for researchers. Researchers need to accurately measure these parameters to better understand the properties and characteristics of materials. In the past, these tests typically required significant time and effort. However, with the advent of the TNKRY series X-ray fluorescence detection dedicated melting point and melting rate tester, this work has become easier and more efficient. This instrument uses advanced technology to measure the melting point and melting rate of materials. It can perform tests under high-temperature environments and measure various types of materials. Furthermore, this instrument boasts high precision and sensitivity, ensuring the accuracy and reliability of test results. The TNKRY series X-ray fluorescence detection dedicated melting point and melting rate tester is simple and convenient to use. Researchers only need to place the sample to be tested into the instrument and start the test procedure to begin testing. In addition, this instrument also features an automated control system.

2023

Main advantages of the melting point and melting rate tester

A melting point and melting rate tester is a specialized instrument used to determine the melting point and melting rate of materials or compounds. It achieves this by heating the sample and monitoring its state changes. Compared to traditional melting point determination methods, the melting point and melting rate tester has the following advantages: 1. High measurement accuracy. Using an electronic system to monitor the state changes of the sample, it can accurately capture the melting point and melting rate data, with a measurement accuracy of within 0.1°C, meeting the needs of high-requirement determinations. 2. Fast measurement speed. Using an electronic heating system, the heating rate can reach more than 20°C/min, greatly shortening the measurement cycle and improving work efficiency. 3. Simple operation. An automatic control system completes heating control, state change monitoring, and data acquisition. Simply prepare the sample and select the work program to complete the determination; operation is simple and easy. 4. High safety factor. Using a sealed heating chamber and a low-limit working temperature prevents sample oxidation and dangerous reactions, ensuring high safety performance and allowing the determination of hazardous materials and poisons. 5. Convenient storage. Measurement data can be automatically stored internally in the instrument or exported to external storage media for long-term preservation and easy access, facilitating management and application. 6. Flexible wavelength selection. Selectable incident light wavelength.

2023

Essential equipment for high-temperature laboratories: TNKRY series X-ray fluorescence detection dedicated fully automatic melting machine

In high-temperature laboratories, melting point and melting rate testers are essential equipment. The TNKRY series X-ray fluorescence detection dedicated fully automatic melting machine is an indispensable part of it. This melting machine features full automation, which can greatly improve the efficiency of laboratory work. This article will introduce the features, functions, and usage of this melting machine, and optimize it for SEO. First, let's understand the features of the TNKRY series X-ray fluorescence detection dedicated fully automatic melting machine. This melting machine adopts a fully automated design and can automatically complete the entire process of melting point and melting rate determination, from sample preparation to measurement result output, the whole process is very quick and convenient. At the same time, this melting machine is also equipped with a high-precision temperature control system and an advanced optical detection system to ensure the accuracy and reliability of the measurement results. Next, let's understand the functions of the TNKRY series X-ray fluorescence detection dedicated fully automatic melting machine. This melting machine can be used to measure the melting point and melting rate of various materials, including metals, ceramics, polymers, etc. It can meet the needs of various melting point determinations, including ordinary melting points, high-temperature melting points, and low-temperature melting points. At the same time, it can also perform thermal analysis and optical detection functions, making it convenient for users to perform

2023

Main features of fire assay cupellation

The main use of a fire assay cupel furnace is for the assaying and smelting of precious metals. Its main features are as follows: 1. High Temperature: The fire assay cupel furnace can reach temperatures above 1100°C, sufficient to melt most metals, especially suitable for melting high-melting-point precious metals such as gold and silver. 2. Automatic Insulation After Power Failure: The fire assay cupel furnace uses automatic insulation technology after power failure, maintaining a high temperature even if the power is cut off, preventing power outages from affecting assaying and smelting. 3. Energy Efficient and High Efficiency: The fire assay cupel furnace uses new insulation materials and combustion technology to achieve rapid heating and insulation, maintaining heat well and being energy efficient and highly efficient. 4. Gas-Blood Separation Technology: Using gas-blood separation technology, the airflow and firepower can be adjusted as needed, making it easier to control the temperature and achieve precise and stable temperature control. 5. Less Ash and Slag: The combustion chamber uses a special structure to minimize the production of ash and slag, reducing contamination of assaying and smelting products. 6. Safe Operation: The fire assay cupel furnace has complete safety equipment, such as overheat and oxygen excess alarms, and pressure relief valves, making the operation process safer and more reliable. 7. Easy to Operate: The fire assay cupel furnace has a simple and intuitive operating interface, using an electric push-pull handle, allowing for easy and quick operation.

2023

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Luoyang Turner High Temperature Instrument Co., Ltd.

+86-400-880-7095
Sales (same as WeChat):18695992058
Contact:+86-379-69755886
Address: South Section of Shuangxiang Road, Luoxin Industrial Cluster, Luoyang City, Henan Province
Email:tnkinstrument@163.com

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