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[Chemical Knowledge]：From "Principle of the Richter Hardness Tester" to Excellent Quality -- Discussion on Hardness Testing Technology

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Hardness testing technology is a very important work in materials science, which can evaluate the mechanical properties of materials, and is very critical for material design and manufacturing. Among them, the Richter hardness tester is an important representative of hardness testing technology, which has the advantages of high precision, intuitive reading and fast measurement speed. So, what is the "principle of the leeb hardness tester"?

"principle of the leeb hardness tester" is how to work?

leeb hardness tester is through a certain load test steel ball into the surface of the depth, and then calculate the surface hardness value. When the load size does not change, the size of the indentation is proportional to the surface hardness, and vice versa.

in the experiment, first with a diameter of 1.5875mm steel ball, with a certain pressure will be pressed into the surface of the material to be tested, and then according to the pressure (spring) back ratio directly determine the hardness of the material. The ideal indenter should be tip-shaped, taking into account the safety factors and ease of use, with a hemispherical end of the diameter of 1.5875~12.7mm alloy steel ball. The selection of the diameter of the pressure head should specifically use different steel balls. The hardness of the steel balls varies greatly. The size of the steel ball and the size of the pressure can be selected according to the hardness of the material to be tested. The commonly used pressure is selected at about 500kgf. When the stress is on the surface hardness and the deformation of the extruded sample material cannot be fully transmitted, the difference between the depth H of the lower surface of the indenter and the depth H of the surface on the indenter is measured to obtain the surface hardness

. After the above operation, the hardness value of the tested material can be obtained, thus evaluating its mechanical properties. Obviously, for material manufacturing and product design, hardness testing is crucial. How can

apply hardness testing to achieve excellent quality?

hardness testing technology plays an important role in achieving excellent quality. Through the hardness test of materials and products, we can understand the performance of compressive ability, strength and wear resistance, so as to determine the manufacturing process of materials and product design, and ensure the stability and consistency of product quality. Especially for the manufacture of important equipment or structural materials industry, hardness testing is an indispensable part.

In addition, hardness testing technology can also help companies select materials and develop new materials. After hardness testing and corresponding data analysis, companies can find the most suitable materials for their products and develop more competitive new materials.

Finally, it should be reminded that although the hardness test technology is simple and easy to implement, it needs to be cautious in operation and data processing. Factors such as different types of hardness test balls, pressure and sample preparation will affect the test results. Therefore, if you want to obtain accurate test data, you need professional personnel and high-end hardness testing equipment.

summary:

Through the introduction of this article, we understand the importance of hardness testing technology and the basic process of the Leeb hardness tester principle. It should be noted that the relevant parameters should be carefully checked when carrying out the hardness test. Hardness testing technology can help companies evaluate the mechanical properties of materials, improve product quality, and develop new materials. It is an important part of the field of materials science.