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XHB-3000Z Brinell hardometer

Description:

1.    Hardness is one of the important indices of material mechanical performance. And hardness test is the important means to determine metal material or the quality of product parts. Because of the corresponding relation between metal hardness and other mechanical performance, therefore, most metal materials can be measured the hardness to approximately calculate the other mechanical performance, such as strength, fatigue, creep and wear. Brinell hardness test can satisfy the determination of all the metal material hardness by using different test forces or changing different ball indenters.

2.    The instrument adopts precise structure design with three indenter and two objectives and the load of test force is controlled by the sensor. It makes the whole structure compact and loading of test force stable and exact. The test process is controlled by CPU, using automatic switching between the objective and the indenter. The location of switching adopts mechanical and electronic double matching, makes the location precision more high. Select the scale to start, the instrument will choose the corresponding indenter and objective to realize the automatic measurement.

3.    The instrument can apply to the measurement of cast iron, nonferrous metal and alloy material, various annealing, hardening and tempering steel, especially the soft metal such as aluminum, lead, tin etc. which makes the hardness value more correct. The main function is as follows:

      This instrument has 10 level of test force, 13 Brinell hardness test scales, free to choose;

     With 1and 2two objectives, both can beinvolved in the measurement of indentation length;

     With three indenters for automatic measurement;

     Automatic switching between the objective and the indenter;

     Can preset the test force dwell time and adjust intensity of light source;

     Can show the indentation length, the hardness value and the number of measurements etc.;

     Choice of conversion between each scale of hardness values;

      The test result can be printed;

      According to the particular requirements of the client, it can be equipped with CCD indentation automatic measuring device or video measuring device.

Technical Specifications:

1. Test force:

   Totally 10 level of test force:

612.9N62.5kg

4903N500kg

980.7N100kg

7355N750kg

1226N125kg

9807N1000kg

1839N187.5kg

14710N1500kg

2452N250kg

29420N3000kg

 

 

 

 

 

 

   
Test force control: closed loop system

   Test force applying: automatic (loading / dwell/ unloading)

   Applying time of test force: 2~8s

   Dwell time: 0~60s (5 seconds as an unit)

2.  Specification of the indenter

    φ2.5mmball indenter,   φ5mmball indenter,    φ10mmball indenter

3.  Brinell hardness test scale

   Totally 13 test scales

Diameter of Indenter

Brinell Hardness Scale

10mm

HBW 10/3000

HBW 10/1500

HBW 10/1000

HBW 10/500

HBW 10/250

HBW 10/125

HBW 10/100

 

5mm

HBW 5/750

HBW 5/250

HBW 5/125

HBW5/62.5

2.5mm

HBW 2.5/187.5

HBW2.5/62.5

 

 

 









4.  Repetition and tolerance of displayed value for the hardness tester

Standard hardness test block (HBW)

Tolerance of displayed value%

Repetition of displayed value%

≤125

±3

3

125HBW≤125

±2.5

2.5

225

±2

2

 

 

 

 

 

 

 

5.  Optical system

Eyepiece

Objective

Total Amplifications

Resolution

20

1

20

1.25μm

2

40

0.625μm

 

6.  Test force carried: Automatic (loading/dwell/unloading)

7.  Shifting between the indenter and objective: Automatic

8.  Hardness reading: Measure the length of indentation, press the button to input, it automatically calculate and show the hardness value.

9.  Scale conversion: Choice of conversion between each scale of hardness values.

10.  Appearance parameters:

   Overall dimensions (H×D×W): (890×535×260) mm

   Maximum height of specimen allowed:260 mm

   Distance between the point of the indenter and the exterior panel:150 mm

   Weight:150 kg

   Power and voltage: AC 220V/110V±5%50~60 Hz