Hardness testing

test method
The hardness testing of hard alloys mainly uses a Rockwell hardness tester to test the HRA hardness value. The PHR series portable Rockwell hardness tester is very suitable for testing the hardness of hard alloys. The weight accuracy of the instrument is the same as that of a desktop Rockwell hardness tester, making it very convenient to use and carry.
Hard alloy is a type of metal, and hardness testing can reflect the differences in mechanical properties of hard alloy materials under different chemical composition, organizational structure, and heat treatment process conditions. Therefore, hardness testing is widely used for inspecting the performance of hard alloys, supervising the correctness of heat treatment processes, and researching new materials.
characteristic
It belongs to non-destructive testing and the testing method is relatively simple. The hardness testing of hard alloys has strong adaptability to the shape and size of their specimens, and the testing efficiency is high. In addition, there is a certain correspondence between the hardness of hard alloy materials and other physical properties. For example, the hardness test and tensile test of hard alloys are basically tests to detect the ability of metals to resist plastic deformation, and both tests are to some extent to detect similar characteristics of metals. So, their detection results are completely comparable to each other. The tensile testing equipment for hard alloys is large, complex to operate, requires sample preparation, and has low testing efficiency. For many metal materials, there is a conversion table for hardness testing and tensile testing that can be checked. Therefore, when testing the mechanical properties of hard alloy materials, people are increasingly using hardness tests and less using tensile tests.
tool
The hardness of hard alloys is generally measured using a Rockwell hardness tester HRA scale or a Vickers hardness tester. In practice, people mainly use Rockwell hardness testers to test HRA hardness. The PHR series portable Rockwell hardness tester is very suitable for testing the hardness of hard alloys. This instrument weighs only 0.7kg and has the same accuracy as a desktop Rockwell hardness tester. When measuring the hardness of hard alloys, the PHR series portable Rockwell hardness tester produced by Tianxing Company can test hard alloy workpieces with thickness or diameter below 50mm, hard alloy workpieces with diameter as small as 2.0mm, and tubular hard alloy workpieces with inner diameter less than 30mm. It can also be used at production sites, sales sites, or material warehouses. This instrument is simple, fast, and non-destructive for testing hard alloy workpieces, and can perform hardness testing on batches of finished or semi-finished hard alloy workpieces piece by piece.