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

1

Features of a fire assay cupellation furnace

2023

Introduction to fire assay cupellation furnace

The cupellation furnace was a method used by alchemists to test the purity of metals and refine impurities. Although modern technology has advanced to the point of using equipment for testing, the cupellation furnace holds a very important position in the minds of ancient alchemists. The benefits of the cupellation furnace lie in improving the purity and quality of metals. By testing the purity of metals, alchemists can understand the chemical properties of the metal and thus determine its applicable range. At the same time, the ability to purify impurities can also improve the quality of the metal and eliminate surface defects. In addition, the cupellation furnace can improve the skills of alchemists. Through continuous testing and purification, they can improve their skill level and continuously explore higher levels of metallurgy and chemistry. This meticulous attitude is also applied to other fields, allowing people to continuously progress and develop. In short, the benefits of the cupellation furnace lie not only in improving the quality and purity of metals, but also in representing a pursuit of excellence in attitude and spirit. The cupellation furnace is a common metal smelting device that can generate high temperatures without electricity. It also has the following advantages: By controlling the oxygen flow and combustion state inside the furnace, the temperature inside the furnace can be precisely controlled to reach the required melting point. The fuel used in the cupellation furnace is mainly

2023

Introducing the Fire Assay Cupellation Furnace

Cupellation is a traditional method for testing metal materials and determining the purity of precious metals such as gold. The principle is based on the differences in temperature and oxidation properties between precious metals and other impurity metals. First, the precious metal sample is heated to a high temperature in a furnace. Then, a certain amount of cupel (mainly composed of oxides of silver, copper, and iron) is added. Air is blown into the furnace with a blowpipe for combustion. By observing the color changes of the sample and the reaction of the cupel, the purity of the precious metal sample, as well as the types and content of impurities, can be determined. Cupellation is a tool commonly used in metal analysis laboratories. Its function is to decompose the sample at high temperature and then determine certain elements contained in it. The following points should be noted when using this tool. When using a cupellation furnace, a dedicated person must be on duty, and the laboratory must not be left during use to respond to emergencies. When using a cupellation furnace, temperature control must be carried out according to the experimental requirements to avoid high temperatures causing danger. At the same time, improper operation should be avoided during heating to prevent a sudden temperature rise. When conducting cupellation experiments, appropriate containers and reagents must be used. Using inappropriate materials can easily cause explosions and other dangers. When conducting cupellation experiments...

2023

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

< 1...11 12 13...15 >

Scan

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

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Business license

Power by:300.cn SEO Privacy Policy