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Features of X-ray fluorescence melting instrument

The X-ray fluorescence fusion machine's entire sample preparation process can be fully automatically controlled, with the molten sample injected into a molding die. The heating system's heating precision of the crucible and die is completely independent, allowing for precise measurement and control of the crucible's melting temperature and direct contact with the die. The high-homogenization crucible tilts when rotating, ensuring that the molten sample is effectively stirred in a short time, allowing the molten sample to meet extremely demanding homogenization requirements.

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2021

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11

Operating procedures for a melting point and melting rate tester

According to the definition of physical chemistry, the melting point of a substance is the temperature at which the substance changes from a solid to a liquid state. In the field of organic chemistry, the determination of the melting point is a basic means of identifying the properties of a substance and is also an important method for purity testing. Therefore, melting point and melting rate measuring instruments play an important role in the chemical industry and medical research, and are indispensable instruments for the production of organic crystalline substances such as drugs, spices, and dyes.

02

2021

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11

Melting point and melting rate tester equipment introduction

Sample Preparation for Melting Point and Melting Rate Determination Instrument: Take 5-10g of slag sample. The sample to be tested should be dry and have a uniform composition. Before sample preparation, grind it in an agate mortar. After grinding, the particle size of the powder should be 180~200 mesh. Add a small amount of deionized water or anhydrous ethanol and mix well. Press the sample using a sample mold and store it in a desiccator. After the sample is demolded, regularly trim the shape of the sample with a soft brush.

18

2021

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10

Comparison of high-frequency and electric heating fusion machines

Since high-frequency melting prototypes are currently used less frequently, there are currently some major misunderstandings in their understanding. We will compare them with electric heating melting prototypes for corresponding explanations:

18

2021

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09

Characteristics of fire assay

Cupellation is not only an ancient method for enriching gold and silver, but also an important method for analyzing them. Geological, mining, and gold and silver smelting plants both at home and abroad regard cupellation as a reliable analytical method and widely apply it to production. Some countries have established cupellation as a standard method, and China has also established it as the national standard method for determining gold in gold concentrates, copper concentrates, jewelry gold, and composite gold. With the development of science and technology, more and more new technologies for analyzing gold and silver have emerged, and analytical instruments have become increasingly advanced. Compared with other methods, the operation procedure of cupellation is longer and requires certain skills. Many analysts are trying to use other analytical methods to replace it.

05

2021

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09

What is the "three-layer structure" for protecting slag?

In continuous casting production, except for small-section billets, most use protective slag (with submerged nozzle). Practice has proved that this technology is one of the important conditions to ensure the quality of slabs and normal operation. In the early 1970s, this technology was successfully applied to slab continuous casting in China, solving the problem of longitudinal cracks in slabs, and then gradually promoted. In recent years, a series of protective slags have been introduced, and some special steel continuous casting protective slags have been developed, creating the necessary conditions for the further development of continuous casting in China. In order to fully exert the five functions of mold powder, it is necessary to make the powder added to the mold form a "three-layer structure".

02

2021

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09

Features of X-ray fluorescence melting instrument

One important method in X-ray fluorescence spectrometry and sample preparation is fusion.

19

2021

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08

Overview and Applications of Lithium Metaborate

Lithium metaborate is a colorless triclinic crystal with a pearly luster. It is soluble in water and begins to decompose above 1200°C, producing lithium oxide. The octahydrate is a colorless trigonal crystal with a melting point of 47°C. It can be prepared by melting stoichiometric lithium hydroxide or lithium carbonate with boric acid.

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2021

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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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