What should we know about the benchtop hardness tester?

Except for the lifting of the test bench, the benchtop hardness tester is fully automated and eliminates operation and reading errors. It is also suitable for the hardness determination of ferrous metals, non-ferrous metals, and non-metallic materials. So its convenience makes it popular. Next, I will briefly introduce some things about the benchtop hardness tester.

Here is the content list:

l What are the advantages of hardness testing?

l What are the technical requirements?

l What are the temperature conditions during use?

What are the advantages of hardness testing machine?

The benchtop hardness tester is easy to prepare and can be tested on samples of different sizes. After the test, the sample is not damaged; the benchtop hardness tester is simple in equipment, convenient to operate, and fast in measurement; there is an approximation between hardness and strength According to the measured hardness value, the strength limit value can be roughly estimated. Therefore, the benchtop hardness tester is widely used in practice.

What are the technical requirements?

1. The benchtop hardness tester should have a nameplate, and the name, specification, model, serial number, year, and month of manufacture should be indicated on the nameplate. The benchtop hardness tester should be equipped with standard hardness blocks in the usual hardness range.

2. The benchtop hardness tester should be correctly installed on a stable foundation, and its level should be adjusted to 1mm/m.

3. The indenter handle should be firmly installed in the spindle hole. The universal hardness tester should pay attention to this point.

4. The spindle, test force loading and unloading mechanism, lifting mechanism, buffer mechanism, indentation measuring device, etc. of the benchtop hardness tester should work normally and flexibly; the lead screw should not shake; the test force loading and unloading should be smooth and without impact, and should not affect the reading.The universal hardness tester should also pay attention to it.

5. The test bench should be firmly installed on the lead screw. There should be no mechanical obstacles such as blockage when the adjustment bench moves. The horizontal and longitudinal adjustment lead screw should be flexible, and the test bench surface should be flat and smooth.

6. The measuring device of the benchtop hardness tester is the effective range of use in the 60% central part of its field of view. In this range, the image quality of the indentation should be clear and the edges should be obvious. When fine-tuning the focus, the indentation should not have obvious shaking, and there should be no loss of focus after the test force is applied; the focusing handwheel should be continuous, uniform, and without obvious gaps when rotating.The universal hardness tester should pay attention to it.

What are the temperature conditions during use?

The benchtop hardness tester should be tested under environmental conditions of (23±5)℃ and relative humidity not exceeding 70%. If the verification is performed outside this temperature, the verification temperature should be indicated in the verification record or verification certificate. Otherwise, the result of the test will produce an error.

EBPU Electromechanical Equipment (Zhejiang) Co., Ltd. has developed a variety of benchtop hardness testers. The quality is guaranteed during the production process and is produced in strict accordance with the standards. If you are engaged in the benchtop hardness tester business, you can consider using our products.