What are the hardness testing methods for cemented carbide moulds? Cemented carbide mould hardness testing is mainly carried out using a Rockwell hardness tester to test HRA hardness values. the PHR series portable Rockwell hardness tester is very suitable for testing the hardness of cemented carbide. The instrument has the same weight accuracy as the benchtop Rockwell hardness tester and is very easy to use and carry.
Cemented carbide moulds are a metal that can reflect the differences in mechanical properties of cemented carbide materials under different chemical composition, organisational structure and heat treatment process conditions through hardness testing, therefore hardness testing is widely used in the inspection of cemented carbide properties, supervision of the correctness of the heat treatment process and research of new materials.
The hardness of carbide moulds is generally tested with a Rockwell 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 carbide. Hardness testing of cemented carbide is more adaptable to the shape and size of its test pieces and test efficiency. In addition, there is a certain correspondence between the hardness of the carbide material and other physical properties.
Therefore, their test results are fully comparable with each other. The carbide tensile test equipment is huge, complex to operate, to prepare specimens, the test efficiency is low and for many metal materials there is a conversion table available for the hardness test and the tensile test. Therefore, when testing the mechanical properties of cemented carbide materials, people are increasingly using the hardness test and less often the tensile test.
