In many manufacturing industries, rockwell hardness tester for sale is used to determine the strength and stiffness of a particular material or product. The process involves using a diamond cone or steel ball to force an indentation into the sample material, which is then measured. Various types of test methods exist, and each has its own benefits. This article will discuss the most popular hardness testing techniques to help you find a rockwell hardness tester for sale that meets your needs.
The Brinell method is a common testing technique that uses a steel ball indenter to mark the surface of the sample material. The diameter of this indentation is then measured with a microscope or other measuring device. The results of this method are more precise than those of the Rockwell method because the spherical indenter distributes the pressure evenly. However, the surface of the sample must be well prepared and clean to avoid abrasion or deformation during the testing procedure.
This method is ideal for softer samples, such as plastics and some metals. Its main advantage is that it can measure a surface’s hardness without damaging the specimen. It is also relatively fast and easy to use, which makes it a popular choice for production environments. However, it is important to remember that the results of this method are only as accurate as the quality of the contact between the indenter and the sample.
If you need to test very hard materials, the Vickers microhardness testing technique is recommended. This method utilizes a diamond-shaped indenter to produce an impression on the surface of the sample, which is then measured with a microscope. This type of testing is very precise, but it can be time consuming.
In order to ensure the accuracy of your hardness testing equipment, it is important to keep a master calibration set on hand. These sets contain both the test blocks and the indenter or penetrator that was used to calibrate it, ensuring that the two are in perfect alignment. This eliminates the possibility of a calibration error, which could lead to inaccurate test results. Master calibration sets are available from most leading hardness testing companies. They are the most affordable and convenient way to maintain a high level of accuracy in your laboratory. You can even have a set customized to suit your specific application by contacting the manufacturer of your tester.