Practical Micro Vickers Hardness Tester (SMHV-2000)
SMHV-1000 series is a precision micro Vickers hardness testing machine integrated the technology of optics, mechanics and computer.
SMHV-1000 series equipped with a large LCD screen, the operation is more directly and clearly.
SMHV-1000 series can display the measuring methods, testing force, indentation length, hardness value, dwell time of the testing force as well as the number of measurement.
SMHV-1000 series can save and revise the date, record the measuring results, compute the data, output the information with printer.
SMHV-1000 series hardness conversion among 17 hardness scales, and linking to PC in RS 232 interface and cable.
Principle of Vickers Test
The Vickers hardness test method consists of indenting the test material with a diamond indenter, in the form of a right pyramid with a square base and an angle of 136 degrees between opposite faces subjected to a load of 1 to 100 kgf. The full load is normally applied for 10 to 15 seconds.
The two diagonals of the indentation left in the surface of the material after removal of the load are measured using a microscope and their average calculated. The area of the sloping surface of the indentation is calculated. The Vickers hardness is the quotient obtained by dividing the kgf load by the square mm area of indentation.
When the mean diagonal of the indentation has been determined the Vickers hardness may be calculated from the formula, but is more convenient to use conversion tables.
The Vickers hardness should be reported like 800 HV/10, which means a Vickers hardness of 800, was obtained using a 10kgf force. Several different loading settings give practically identical hardness numbers on uniform material, which is much better than the arbitrary changing of scale with the other hardness testing methods.
The advantages of the Vickers hardness test are that extremely accurate readings can be taken, and just one type of indenter is used for all types of metals and surface treatments. Although thoroughly adaptable and very precise for testing the softest and hardest of materials, under varying loads, the Vickers machine is a floor standing unit that is more expensive than the Brinell or Rockwell machines.
|Product Name||Manual-Turret Micro Vickers Hardness Tester||Auto-Turret Micro Vickers Hardness Tester|
|Indentation Measurement||Digital Sensor Measurement|
|Loading Control||Automatic (Loading, Dwell, Unloading)|
|Magnification of Microscope||Observation:10x/40x; Measurement:10x/40x|
|Magnification on of Eyepiece||10x Digital Eyepiece|
|Dwell Time||Adjustable 5~60s|
|Auto Hardness Conversion||HRA, HRB, HRC, HV, HK, HBW, etc|
|X-Y Anvil||Size:100x100mm; Travel:25 x25mm; Resolution:2um|
|Illumination||Halogen Light- source (LED is optional)|
|Max. Height of Specimen||70mm|
|Dimension(LxWxH)||425 x245 x490mm|
|Packing Dimension||530 x490 x700mm|
|Execution Standard||ISO 6507,ASTM E92,JIS Z2244,GB/T4340|
|Standard Delivery||Code#||Standard Delivery||Code#||Standard Delivery||Code#|
|Vickers Indenter||823-401||Objectives 40x/10x||823-341/311||Accessories Box||823-901|
|Vickers Hardness Block HV 0.5||823-621||X-Y Anvil||823-701||Anti-dust Cover||823-911|
|Vickers Hardness Block HV 1||823-611||Mini-Printer||823-831||Level Screw||823-931|
|10x Digital Eyepiece||823-301||Power Cable||823-801||Instrument Manual||SMHV-1000|
|Optional Accessories||Code#||Optional Accessories||Code#||Optional Accessories||Code#|
|Vickers Measuring Software||823-381||Unequal Spencimen Clamp||823-741||Knoop indenter||823-411|
|25mm Digital Micrometer Head ||823-719||Filament Clamp||823-761||USB Camera USB-V1||823-473|
|Thin-piece Clamp||823-751||Flat Precision Clamp||823-711||15x Digital Eyepiece||823-351|