Characteristics
The Vickers hardness tester is a small portable instrument. It is small in size, light in weight and can be operated with one hand. It can test the hardness of materials quickly, conveniently and without damage. It does not need to be sampled and has low requirements on operational skills. It is very suitable for production at the production site. The material is tested for rapid hardness.
The disadvantage of the Vickers hardness tester is that the sensitivity is poor, the range is narrow, and the full range has only 20 scales, so usually only one or two kinds of metal materials can be tested in one instrument.
Structure
The hardness tester consists of three main components: frame, handle, and needle assembly. The pressure needle assembly includes a pressure needle, a load spring, an adjustment nut, a needle sleeve, a reset button, a return spring, a meter head, and the like. When the handle is depressed, the needle assembly moves toward the anvil as a unit.
During the pressing of the handle, the needle assembly moves toward the device under test, and the needle tip is first brought into contact with the device under test. Continue to press the handle, which will cause a part of the needle to penetrate into the DUT, and the other part will retreat into the pin sleeve and interact with the spring force of the load spring.
Application of Wechsler Hardness Tester
The Vickers hardness tester uses two different shapes of press pins, two different test forces, and their combination constitutes three different types of instruments for testing aluminum alloy, soft copper, hard copper, super hard aluminum alloy and soft. steel. The Vickers hardness tester is suitable for testing materials with two parallel faces, such as pipes, plates and profiles, up to a thickness of 13 mm.
The Vickers hardness tester is very suitable for batch-by-piece inspection of batch products at the production site. Although its sensitivity is not high, it can meet the requirements as a production control and qualified judgment instrument. For this reason, the Vickers hardness tester is The aluminum processing industry has been widely used.
The Vickers hardness tester on the market is mainly based on the W-20 series aluminum alloy Vickers hardness tester, and the Vickers hardness tester for detecting copper alloy.
National Standard "Aluminum Alloy Hardness and Strength Conversion Table" GBn 166-82
Performance test
1. Determine whether the aluminum profile has heat treatment, check the heat treatment effect, and determine whether the mechanical properties of the aluminum profile are qualified.
2. Determine whether the aluminum profile is processed by an inappropriate alloy and determine whether the aluminum profile alloy composition is acceptable.
3. Measurement of excessively long, heavy workpieces or assemblies that are inconvenient to be sent to the laboratory.
4. It is used for production inspection, acceptance inspection and quality supervision and inspection of aluminum profiles.
5. The reading is convenient and can be easily converted into other hardness values. The measuring range is mainly used to measure aluminum profiles and aluminum alloy materials, as well as copper alloy materials. Its measuring range is equivalent to: aluminum profile: 24 ~ 110HRE copper alloy: 60 ~ 90HRF
6. Can measure a variety of aluminum profiles.
7. Simple operation, operating skills have no effect on readings.
Characteristics
The Vickers hardness tester is a small portable instrument. It is small in size, light in weight and can be operated with one hand. It can test the hardness of materials quickly, conveniently and without damage. It does not need to be sampled and has low requirements on operational skills. It is very suitable for production at the production site. The material is tested for rapid hardness.
The disadvantage of the Vickers hardness tester is that the sensitivity is poor, the range is narrow, and the full range has only 20 scales, so usually only one or two kinds of metal materials can be tested in one instrument.
Structure
The hardness tester consists of three main components: frame, handle, and needle assembly. The pressure needle assembly includes a pressure needle, a load spring, an adjustment nut, a needle sleeve, a reset button, a return spring, a meter head, and the like. When the handle is depressed, the needle assembly moves toward the anvil as a unit.
During the pressing of the handle, the needle assembly moves toward the device under test, and the needle tip is first brought into contact with the device under test. Continue to press the handle, which will cause a part of the needle to penetrate into the DUT, and the other part will retreat into the pin sleeve and interact with the spring force of the load spring.
Application of Wechsler Hardness Tester
The Vickers hardness tester uses two different shapes of press pins, two different test forces, and their combination constitutes three different types of instruments for testing aluminum alloy, soft copper, hard copper, super hard aluminum alloy and soft. steel. The Vickers hardness tester is suitable for testing materials with two parallel faces, such as pipes, plates and profiles, up to a thickness of 13 mm.
The Vickers hardness tester is very suitable for batch-by-piece inspection of batch products at the production site. Although its sensitivity is not high, it can meet the requirements as a production control and qualified judgment instrument. For this reason, the Vickers hardness tester is The aluminum processing industry has been widely used.
The Vickers hardness tester on the market is mainly based on the W-20 series aluminum alloy Vickers hardness tester, and the Vickers hardness tester for detecting copper alloy.
National Standard "Aluminum Alloy Hardness and Strength Conversion Table" GBn 166-82
Performance test
1. Determine whether the aluminum profile has heat treatment, check the heat treatment effect, and determine whether the mechanical properties of the aluminum profile are qualified.
2. Determine whether the aluminum profile is processed by an inappropriate alloy and determine whether the aluminum profile alloy composition is acceptable.
3. Measurement of excessively long, heavy workpieces or assemblies that are inconvenient to be sent to the laboratory.
4. It is used for production inspection, acceptance inspection and quality supervision and inspection of aluminum profiles.
5. The reading is convenient and can be easily converted into other hardness values. The measuring range is mainly used to measure aluminum profiles and aluminum alloy materials, as well as copper alloy materials. Its measuring range is equivalent to: aluminum profile: 24 ~ 110HRE copper alloy: 60 ~ 90HRF
6. Can measure a variety of aluminum profiles.
7. Simple operation, operating skills have no effect on readings.
