What is the hardness of carbide testing methods?

Today, Changzhou good tools Xiaobian you understand:

Carbide hardness is generally measured with Rockwell hardness tester HRA scale or Vickers hardness tester, practical people mainly use Rockwell hardness tester HRA hardness test. PHR series of portable Rockwell hardness is very suitable for testing the hardness of cemented carbide. This instrument weighs only 0.71kg, the same accuracy and desktop Rockwell hardness. In the measurement of carbide hardness, Star produced PHR series of portable Rockwell hardness tester can test the thickness or diameter of 52mm in the following carbide workpieces, you can test the diameter of small to 2.10mm carbide bearings, you can test the diameter of less than 31mm tubular cemented carbide workpiece. Can also be used in the production site, sales site or material warehouse. This instrument is used to test the hard alloy workpiece is simple, fast, lossless, can be a batch of finished or semi-finished carbide parts to do piece by piece hardness testing. The application of different hardness Carbide Carbide has a high hardness and wear resistance, commonly used in the manufacture of metal cutting tools, measuring tools, molds and so on. Usually when the material hardness is high, wear resistance is also high; bending strength is high, the impact toughness is also high. But the higher the hardness of the material, the lower the bending strength and impact toughness. High-speed steel with high bending strength and impact toughness, as well as good machinability, is still the most widely used tool material, followed by carbide. One of the hard alloy is one or several carbides (such as TiC, WC, etc.) for the hardening phase, alloy steel (such as high-speed steel, molybdenum chromium steel, etc.) made of binder powder, called steel Carbide. The hardness is between steel and cemented carbide, but the toughness is greatly improved and can be machined and heat treated. The typical hardness of this steel alloy is: after quenching - tempering hardness of 69 ~ 73HRC, high-speed steel 65%.