MITECH JMHVS-XYZ Automatic Precision Dimension Hardness Tester

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MITECH JMHVS-XYZ Automatic Precision Dimension Hardness Tester

Mitech JMHVS-XYZ presisi otomatis Vickers kekerasan tester, berdasarkan prinsip mekanik indentor berlian piramida segiempat positif ke dalam permukaan sampel untuk menghasilkan lekukan.Dengan mengukur panjang diagonal lekukan untuk mencapai kekerasan pengukuran material.

Product Description

MITECH JMHVS-XYZ Automatic Precision Dimension Hardness Tester

Mitech JMHVS-XYZ automatic precision Vickers hardness tester, based on the the mechanical principle of positive quadrilateral pyramid diamond indenter into the sample surface to produce indentation.By measuring the diagonal length of the indentation to achieve the hardness of the material measurement.Its high degree of automation, accurate measurement,integrated mechanical and electrical integration in one use photoelectric sensor system to achieve high magnification optical measurement.It is equipped with automatic turret device, high sensitivity touch screen interface, sensor closed-loop control technology, unloading, automatic indentation, microscopic auto focus measurement indentation diameter, GB/ASTM hardness automatic conversion, automatic test report and other functions,making it easy to operate,high detection efficiency, to meet the hardness of the workpiece sample quality control and qualified to assess the hardness testing requirements.It is widely used in metal processing and manufacturing industry quality control links,all kinds of metal materials failure analysis,scientific research and other fields of higher education institutions.It is the necessary professional precision testing equipment to improve the work efficiency,product qualification rate and save production costs.

Function & application

  • Quality control links in metal processing manufacturing;
  • Failure analysis test of metallic materials;
  • Research teaching experiment in universities;
  • Material hardness test of scientific research institution;
  • Quality inspection departments of quality testing links.

Working Principle

The testing principle of Micro Vickers (or Knoop) hardness is the using of regular four-pyramid diamond pressure head, the selected fixed experimental force (load) is pressed into the specimen surface and maintained for a certain length of time (Paula), and then the experimental force (unloading) is removed.A positive pyramid or Knup indentation with a square on the surface of the specimen remains.The length of the diagonal is measured by the micrometer (0.020~1.400mm) to obtain the area of the indentation and to obtain the corresponding Vickers (or Knoop) hardness value.

Usually Vickers hardness values can be converted according to the following formula:

HV = constant × test force / indentation surface area ≈0.1891 F / d2;

Note: HV: Vickers hardness symbol; F: test force (N); d: the arithmetic mean of indentation two diagonal d1, d2.

Working Conditions

  • Operating temperature: 18℃~28℃;
  • Relative Humidity: ≤65%;
  • In the absence of vibration, no corrosive media around the environment;
  • Install horizontally on a solid basis.

Features MITECH JMHVS-XYZ Automatic Precision Dimension Hardness Tester :

  • It is widely applied to the Vickers hardness test of the surface (infiltration coating) of the specimen such as micro specimen, thin specimen and heat-treatment workpiece, which can meet the needs of research institutions, precision processing manufacturing and quality inspection departments, and microhardness testing;
  • This product is the integration of High-tech innovative products, high degree of automation, accurate measurement, suitable for measuring the demand for large or high precision high-end users;
  • With high rate optical sensor system and high-precision photoelectric sensor technology, the test point positioning is accurate, the test results more accurate;
  • Automatic closed-loop pressure sensor control system can dynamically reflect the load changes in the process of loading;
  • With error correction function, hardness value of the error can be corrected through the key input, more easily meet the accuracy of the test requirements;
  • The threshold of the automatic alarm function, suitable for batch of finished products or semi-finished products workpiece by piece inspection;
  • Original environment temperature real-time display function, and it can avoid the instrument working in the too high or too low temperature for a long time.Otherwise,it will lead to the increased test errors, and the instrument service life will be reduced;
  • Using the adjustable cooling light source measurement system, the software can control the intensity of the light source;
  • Automatic turret device can convert the pressure head and the microscope eyepiece, and the test efficiency is high;
  • Support the numerical conversion among Brinell, Vickers and other hardness standards;
  • Easy to operate, and it can automatically identify indentation edge, automatic removal of Burr to achieve accurate indentation measurement, synchronous display indentation diameter and hardness value, and recorded in the list;
  • Built-in high-speed thermal printer, so it can quickly print out the test data;
  • With novel shape, strong structure, the use of diamond head, rugged wear-resistant, high reliability, reading intuitive,and accurate measurement;
  • Using electronic automatic loading system to control the main test force, eliminating the load weights, so that the operation is more convenient;
  • The use of touch screen display interface, display operation integration, simple and intuitive, make the operator has no difficult and technical requirements;
  • Using the adjustable cooling light source measurement system,and the software can control the intensity of the light source;
  • Support the numerical conversion among Brinell, Vickers and other hardness standards;
  • Meet the standards of GBT4340.1,GBT4340.2,ASTM_E92 and other relevant standards at home and abroad.

Specifications MITECH JMHVS-XYZ Automatic Precision Dimension Hardness Tester :

Test force 1.96N(0.2Kgf)、4.9N(0.5Kgf)、9.8N(1Kgf)、19.6N(2Kgf)、29.4N(3Kgf)、49N(5Kgf)、98N(10kgf)、196N(20Kgf)、294N(
Measuring range 5-2500HV
Hardness mode HV、HK
Conversion scale Other hardness values of American Standard, GB, or German standard
Effective verification of hardness value According to the measured hardness value, the minimum sample thickness, the test point and the dista
Applying way of test force Automatic (plus, loading, unloading)
Magnification of measuring microscope 100X(Observation) 200X(Measurement)
The conversion mode of the lens of the head Automatic
Image focus Automatic or manual operation
Camera (Pixel) 1.3 million/3 million
Indentation measurement Automatic or manual operation
Data statistics Automatically calculate the hardness of the average, variance, Cp, Cpk and other statistical values.
Data storage Raw measurement data, images, etc.which can be saved in the document.
Hardening curve Automatically draw the hardening curve
Display attributes High sensitive touch screen
Suitable for material edge scan Automatic (automatically scans along the edges of the test pieces and draws the edge overall diagram
XYZ Sample Table 110mm*110mm
Mobile control The direction button, keyboard direction key, input moving distance can control the moving or liftin
Measure the minimum scale value of the system 0.01μm
Maximum height of applicable materials 210mm
Maximum distance between head center and fuselage 320mm
Test report Automatically generate Word or Excel document reports in a format that can be customized (standard f
Vickers Hardness It can be set to the hardness measurement.
Loading mode and path settings Along the line, along with the angle, free-click, horizontal along, longitudinal, along the curve ma
Fracture toughness It can be set to measure indentation fracture toughness.
Power supply AC220V/50Hz
Overall dimensions 490*320*530mm
Machine weight 45kg

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