Dongguan Zhongli Instrument Technology Co., Ltd.
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HV-5/10/30/50 Vickers Hardness Tester is a high-tech product of opto-mechanical integration. The machine is novel in shape, with good reliability, operability and intuitiveness. It adopts precision mechanical technology and optoelectronic technology. The new Vickers and Knoop hardness tester.
The machine adopts computer software programming and optical measurement system. Through soft key input, the measurement of Vickers and Knoop hardness can be selected, the strength of the measurement light source can be adjusted, the dwell time can be selected, the test method and test force can be displayed on the LCD screen, and the indentation pair can be measured through the panel input. The length of the angle line and the hardness value are directly read out on the screen, which simplifies the tediousness of looking up the table. Easy to use and high measurement accuracy.
The hardness tester is suitable for measuring the Vickers hardness of tiny, thin, surface infiltration coating specimens and Knoop hardness of glass, ceramics, agate, artificial gems and other brittle and hard materials. It is an ideal hardness testing instrument for research and testing by scientific research institutions, enterprises and quality inspection departments.
HV-5Z /10Z /30Z /50Z－ Upgraded version
Manual switching of objective lens and indenter to automatic switching function
Technical parameters:
| Type | HV－5 | HV－10 | HV－30 | HV－50 | |
| TEST FORCES | N | 2.942,4.903,9.807,19.61, | 2.942,4.903, | 9.807,29.42, | 9.807,49.03,98.07,196.1, |
| KG | 0.3,0.5,1,2,3,5 | 0.3,0.5,1,3,5,10 | 1,3,5,10,20,30 | 1,5,10,20,30,50 | |
| Carriage Control | Automatic(loading/holding-up of the load/unloading) | ||||
| HOLDING TIME | 0～60s | ||||
| Amplification of the Microscope | 100X,200X | 100X,200X | 100X | 100X | |
| Min.graduation value of the testing drum wheel | 0.25um(400X),0.5um(200X),1um(100X) | ||||
| Testing Field | 8HV~2967HV | ||||
| Lens／Indenter Switch | | ||||
| Max.Height of the Specimen | 160mm | ||||
| Max.Width of the Specimen | 135mm | ||||
| Light Source | Cold Light Source | ||||
| Power | 220V/50Hz, can be customized to/AC110AC±5% | ||||
| Objective | The objective 10x 20x and 40x can be selected according to user’s requirement | ||||
| Standard Accessories | (Thin specimen test table) | Large Test Table“V” | |||
| 10x digital micrometer eyepiece,Horizontal adjustment screw,Vicker hardness blocks | |||||
| Dimension | 520×190×650mm | ||||
| New weight | 40Kg | ||||
1. How does a Vickers hardness tester work?
The Vickers Hardness (HV) is calculated by measuring the diagonal lengths of an indent in the sample material left by introducing a diamond pyramid indenter with a given load. The diagonals of the indent are measured optically in order to determine the hardness, using a table or formula.
2. How do you check Vickers hardness?
This test consists of applying a force (also called a “load”) on the test material using a diamond indenter, to obtain an indentation. The depth of indentation on the material gives the value of hardness for the specimen. In general, the smaller the indentation, the harder the object is.
3. What is its hardness on the Vivkers scale?
Vickers hardness numbers are reported as xxxHVyy, e.g. 440HV30, or xxxHVyy/zz if duration of force differs from 10 s to 15 s, e.g. 440HV30/20, where: 440 is the hardness number, HV gives the hardness scale (Vickers), 30 indicates the load used in kgf.
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