Industry News
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Rockwell Hardness Scale ：HRE HRF HRG HRH HRK
1.HRE Test Scale and Principle: · The HRE hardness test uses a 1/8-inch steel ball indenter to press into the material surface under a load of 100 kg, and the hardness value of the material is determined by measuring the indentation depth. ① Applicable material types: Mainly applicable to softer...Read more -
Rockwell Hardness Scale HRA HRB HRC HRD
The Rockwell hardness scale was invented by Stanley Rockwell in 1919 to quickly assess the hardness of metal materials. (1) HRA ① Test method and principle: ·HRA hardness test uses a diamond cone indenter to press into the material surface under a load of 60 kg, and dete...Read more -
Vickers hardness test method and precautions
1 Preparation before testing 1) The hardness tester and indenter used for Vickers hardness testing should comply with the provisions of GB/T4340.2; 2) The room temperature should generally be controlled within the range of 10~35℃. For tests with higher precision requirem...Read more -
Customized Automatic Rockwell Hardness Tester for Shaft hardness testing
Today , Let’s take a look at one special Rockwell hardness tester for shaft testing, equipped with a special transverse workbench for shaft workpieces, which can automatically move the workpiece to achieve automatic dotting and automatic measur...Read more -
Classification of various hardness of steel
The code for metal hardness is H. According to different hardness test methods, the conventional representations include Brinell (HB), Rockwell (HRC), Vickers (HV), Leeb (HL), Shore (HS) hardness, etc., among which HB and HRC are more commonly used. HB has a wider range ...Read more -
Hardness test method of fasteners
Fasteners are important elements of mechanical connection, and their hardness standard is one of the important indicators to measure their quality. According to different hardness test methods, Rockwell, Brinell and Vickers hardness test methods can be used to test the ...Read more -
Application of Shancai/Laihua Hardness Tester in Bearing Hardness Testing
Bearings are key basic parts in the field of industrial equipment manufacturing. The higher the hardness of the bearing, the more wear-resistant the bearing is, and the higher the material strength is, so as to ensure that the bearing can withs...Read more -
How to choose a hardness tester for testing tubular shape samples
1) Can Rockwell hardness tester be used to test the hardness of steel pipe wall ? The test material is SA-213M T22 steel pipe with an outer diameter of 16mm and a wall thickness of 1.65mm. The test results of Rockwell hardness tester are as follows : After removing the oxide and decarburized la...Read more -
Operation methods and precautions for the new XQ-2B metallographic inlay machine
1. Operation method: Turn on the power and wait a moment to set temperature. Adjust the handwheel so that the lower mold is parallel to the lower platform. Place the specimen with the observation surface facing down at the center of the lower...Read more -
Metallographic cutting machine Q-100B upgraded machine standard configuration
1. Features of Shandong Shancai/Laizhou Laihua Test Instruments fully automatic metallographic cutting machine: The metallographic sample cutting machine uses a high-speed rotating thin grinding wheel to cut metallographic samples. It is suita...Read more -
Several common tests of Vickers hardness tester
1. Use Vickers hardness tester of welded parts (Weld Vickers hardness test) method: Since the microstructure of the joint part of the weldment (weld seam) during welding will change during the formation process, it may form a weak link in the welded structure. The...Read more -
Select various hardness testers for testing based on material type
1. Quenched and tempered steel The hardness test of quenched and tempered steel mainly uses Rockwell hardness tester HRC scale. If the material is thin and HRC scale is not suitable, HRA scale can be used instead. If the material is thinner, surface Rockwell hardness scales HR15N, HR30N, or HR45N...Read more
