Fully Automatic Vickers Hardness Testing Machine With Motorized X-Y Anvil

Fully Automatic Vickers Hardness Testing Machine with Motorized X-Y Anvil

Technical Data Download: iqualitrol Vickers Hardness Tester iVick-479MC3

Brief Introduction:

iqualitrol fully Automatic Vickers Hardness Tester integrates with several new technologies such as optical imaging, mechanical displacement, electronic control, digital imaging, image analysis, computer processing and so on.

It controls the Vickers hardness tester and automatic test table by the computer, and displays the indentation image on the computer screen. By means of automatic reading and manual reading, it accurately measures the HV hardness, hardening depth, film thickness, distance between two points of metals and some non-metallic materials and various films.

It also can shoot metal surface morphology and taking fixed rate printing etc. This system breaks through the traditional test method, realize the hardness test of fully automatic, high precision, high repeatability, and it is the important equipment for materials analysis.

Machine Parameters:

Software Function:

System linkage: Through the communication interface it realizes the linkage between the system and the hardness tester.

Pressure linkage: When converting test force, the system percepts the test force change and displays in real time.

Turret linkage: The software controls the shifting between the objective and the indenter without manual control.

Loading linkage: The software controls the loading without manual control.

Measuring linkage: The software controls the turret, loading and directly reading the Vickers hardness value.

Light source linkage: Automatic focus.

Image acquisition: Real time display of hardness image, store and print image.

Automatic measurement: Automatically find the four vertices of indentation with fast speed and accurate data, there are many professional algorithms to be suitable for different indentation. It continuously and immediately measures at specified coordinates once loading.

Automatic point search: The system automatically finds the best vertices near the four vertices of the indentation, greatly reduce the human error.

Diagonal measurement: Click the top left and lower right corner of the indentation, you can read the hardness value.

Four point measurement: Click the four point of the indentation and you can read the hardness value.

Hardness conversion: According to the national standard, automatically convert the hardness value between Brinell, Rockwell, Vickers, Knoop, real-time display.

Graphic report: Automatic record of measurement data, automatic generation of hardness-depth curves, saving or printing the hardness-depth curves and all indentation measurements. Save or print the indentation image and the current indentation hardness value. All the reports are saved in WORD file.

Results statistics: Output the multiple measured results of indentations by EXCEL and automatically count the measurement number, maximum value, minimum value, average value, variance, etc. of hardness.

Linkage control: Through the communication interface the system percepts the test force changes, controls the turret, loads and directly reads.

Automatic displacement: Equipped with high precision X-Y automatic test table.

Automatic identification: Leading indentation automatic identification technology, read D1 / D2 and HV value in 0.3 seconds.

Stable performance: The indentation of non mirror polishing, uneven light, not in the center can be read automatically.

Powerful functions: Such as manual reading, automatic reading, hardness conversion, depth-hardness curve, indentation image, picture and text report.

Easy to use: Through the hardness block calibration, in line with the users’ habits. It can be normal used with half day training.

Automatic reading: Original algorithm of automatic reading to automatic read a variety of indentation with fast speed and high accuracy.

Good repeatability: It is automatic reading with high repeatability and can satisfy the requirement of professional users.

Automatic scanning: Can automatically scan the sample edge and shape.

Parameters:

1. Computer: Lenovo computer (2G memory, 500G hard disk, 19 inch LCD screen)

2. Ink jet printer

3. Operating system: WIN7

4. Digital imaging system

High resolution: 130 million pixel(1280×1024)

High speed acquisition: 1280×1024 resolution: 25 FPS

High definition: Black and white images and clarity is better.

Target surface size: 1/2 inch

5. X-Y automatic test table

Table size: 100×100×50 mm

Maximum travel: 50×50 mm

Minimum step: Less than 2μm

Movement speed: Adjustable

Control mode: Manual control, electric control, computer control

6. X-Y test table - computer control mode

Location movement: The test table directly moves to the software settings;

Point movement: Select any point of the sample, moved to the below of the indenter;

Directional movement: Click the eight directions to make the test table move and the moving step can be set up;

Arbitrary movement: Click any directions to make the test table move and make it easy for users to browse the specimen surface;

Variable speed movement: There are two speeds (fast and slow) when moving the test table and the speed is optional and adjustable;

Other function: Original position arbitrary setting, automatic reset, mechanical limit, and other professional features to meet various requirements.

7. Measuring method

Automatic mode——Automatic test table moving (X, Y, Z direction) + automatic reading

Manual mode 1——Automatic loading + manual eyepiece scribed line measurement

Manual mode 2——Manual test table moving + manual focus + Automatic / manual measurement

8. Automatic / manual reading

Automatic reading time: Single indentation reading time is about 300 milliseconds;

Automatic measurement precision: 0.1μm;

Automatic measurement repeatability: ±0.8%

Manual reading: Manual pick, automatic search points, 4 points measurement, 2 diagonal measurement

9. Results save / output

Save / output measurement data and experimental parameters, including D1,D2,HV,X,Y etc.;

Save / output effective hardening layer depth curve report;

Save / output image.

Standard Configuration:

The Knoop hardness test method is mostly used for small parts, thin sections, or case depth work. Knoop indentation is very small, the main application like below:

testing very thin materials like foils or measuring the surface of a part,
small parts or small areas,
measuring individual microstructures,
measuring the depth of case hardening by sectioning a part and making a series of indentations to describe a profile of the change in hardness.

The Knoop indenter is a pyramid shaped diamond is more elongated or rectangular in shape. The Knoop method is commonly used when indentations are closely spaced or very near the edge of the sample.

The width of the Knoop indentation can provide more resolution for measurement and the indentation is also less deep. Consequently, it can be used on very thin materials.
 

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.