Principle of Rockwell Hardness TestJun 18 , 2021As illustrated in Fig. 1, the indenter is pressed (diamond cone or carbide ball ) into the specimen surface in two steps. After maintaining the pressure for a predetermined period of time, unload the ...
Rockwell/Superficial Rockwell Hardness Tester's OperationJun 17 , 20211. PreparationsBe sure to have chosen the proper indenter and anvil before testing. This instrument is equipped with the diamond indenter and flat anvil before leaving factory. When changing the inden...
Selection of Indenter, Test Force and Anvil of Rockwell Hardness TesterJun 16 , 20211. Indenters Selection for Rockwell / Superficial Rockwell HardnessThe indenters should be selected according to the hardness range of testing materials.Select diamond indenters for tempered steel, qu...
Daily Maintenance of Webster Hardness TesterJun 15 , 2021The testers of this series are precision instruments, of which the service life mainly depends on the correct method of use and timely and proper maintenance. The following items should be taken into ...
Factors Affecting Test Accuracy of Webster Hardness TesterJun 14 , 20211 Test Piece. The surface of the specimen should be treated smooth and clean. The dirt on the specimen, especially the tiny sand grains may affect the test accuracy.2 Sensitivity. The instrument scale...
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