YHY600Digital Rockwell hardness testerIntegrated casting body, no deformation or displacement, weight loading structure, stable performance, high measurement accuracy, and good repeatability. The display interface adopts a menu style structure, precision displacement sensor, 5.1-inch LCD screen display, selection of 12 Rockwell hardness scales, multiple hardness conversion functions, printing and outputting hardness test results, with good operability and intuitiveness. The structure is sturdy, rigid, accurate, user-friendly, and easy to install and debug.

Main functions:

● Precision displacement sensor,

● 5.1inchLCDScreen display, menu style structure,

● 12Selection of Rockwell hardness scale, optional plastic accessories for measuring plastic hardness,

● Multiple hardness conversion functions,

Print and output the hardness test results,

● Has good operability and intuitiveness

The structure is sturdy, with good rigidity, accuracy, and durability.

Application scope:

Determination of Rockwell hardness of ferrous metals, non-ferrous metals, etc,Quenched steel, quenched and tempered, annealed steel, cold hard castings, malleable castings, aluminum alloys, copper, bearing steel, etc.

YHY600Digital Rockwell hardness testerMain data：

Instrument principle:

At the beginning of the experiment, the pressure head of the testing machine is placed on the specimen, an initial test force is applied, and a reference point measured by the displacement measurement device is established. Because the initial test force causes the indenter to press into the specimen, the smoothness or irregularity of the surface will not affect the test. Next, the testing machine applies the main test force, which is relatively large and penetrates deeper into the specimen. Then, the main test force is removed while maintaining the initial test force. At this point, the testing machine measures the depth of the indentation relative to the established reference point. The depth of the straight line of the indentation is the basis of the Rockwell hardness value. A shallow indentation depth only indicates a higher material hardness, while a relatively deep indentation depth indicates a softer material hardness.

HRC. A＝100－n1－n0 0.002

HRB=130－n1－n0 0.002

Where:n0In the initial testing forceF0Under the action, the depth of the indenter pressing into the sample

n1Apply the total test forceF, and remove the main test forceF1However, it still maintains its initial experimental strengthF0The depth at which the pressure head is pressed into the specimen.

Hardness tester meets the standard

GB/T 230.1-2018Metallic materials Rockwell hardness test1Partial experimental methods

GB/T 230.2-2012Metallic Materials Rockwell Hardness Test2Part: Inspection and Calibration of Hardness Testers "National Standard

JJG 112-2013_Metal Rockwell hardness tester(A,B,C,D,E,F,G,H,K,N,∕Truler)Verification Regulation

ASTM E18-2015Standard Test Method for Rockwell Hardness of Metallic Materials

ASTMstandard-Metal testing methods and analysis procedures

Instrument configuration: