Overview
The HBRVU-250 Optical inspection universal hardness gauge is a versatile hardness testing instrument that integrates Rockwell, Brinell and Vickers three hardness testing methods, providing a total of 7 levels of test power, which can meet the diverse hardness testing needs of users. The instrument has high Sensitivity and Stability, and is highly operable. It is suitable for workshop and laboratory environments.
Features
1. Integrated three test methods: support Rockwell (HRA, HRB, HRC), Brinell (HB) and Vickers (HV) hardness testing.
2. Multi-level test force: 7-level test force is provided, including Rockwell 3, Brinell 3, and Vickers 2.
3. Intuitive reading: The rockwell hardness value is directly read by the Optical inspection projection screen; the Vickers and Brinell Hardness values are obtained by looking up the table after Microscope measurement.
4. Semi-automatic control: The loading, holding and unloading process of the test force adopts semi-automatic control, and the speed is adjusted by the buffer Flow rate.
5. High Applicability: With High Sensitivity and Stability, it is suitable for a variety of scenarios such as workshops and laboratories.
Principle
The hardness gauge is formed by pressing the indenter into the surface of the sample by applying a specific test force. The rockwell hardness value directly reads the Hardness value converted by the depth difference of the Crowd through the Optical inspection projection screen. Vickers and Brinell Hardness measure the diagonal (Vickers) or diameter (Brinell) of the Crowd through the Microscope device. After taking the arithmetic average, the Hardness value is obtained by comparing the corresponding Hardness conversion table. The application process of the test force (loading, holding, unloading) is controlled by the semi-automatic system.
Applications
Workshop, laboratory
Standards
GB/T230.1, GB/T230.2, JJG112, ISO 6508-2, ASTM E18
Steps
1. Select the Rockwell, Brinell or Vickers test method and the corresponding indenter and test force according to the test requirements.
2. Place the sample on the appropriate test bench to ensure that the center of the indenter is aligned with the test point.
3. Start the instrument, and the semi-automatic system will control the test force to complete the loading, loading, and unloading process.
4. For the Rockwell test, read the Hardness value directly from the Optical inspection projection screen.
5. For the Vickers or Brinell test, use Microscope measurement Cedar size (Vickers diagonal, Brinell diameter), take the arithmetic average of the two vertical measurements.
6. According to the measured average, consult the corresponding Hardness conversion table to obtain the final Vickers or brinell hardness value.
Notice
• Please read the product instruction manual carefully before use.
• According to the test materials and methods, correctly select the indenter, test force and test bench.
• Ensure that the surface of the specimen is flat, clean, and firmly placed on the test bench.
• Pay attention to safety during operation and avoid body parts from entering the working area of the indenter.
• Regularly calibrate the instrument with standard Hardness Blocks to ensure Test accuracy.
• The instrument power supply is AC220V/50Hz, please make sure the power supply matches.
• The instrument weight is large (130kg), and safety should be paid attention to when handling and placing.
When replacing a light bulb or fuse, disconnect the power first.
• Keep instruments clean, especially Optical inspection components and rail sections.
