MITECH MHBS-3000-XYZ Automatic Brinell Hardness Tester
Overview
Mitech MHBS-3000-XYZ Automatic Brinell Hardness Tester, based on
the mechanical principle of hard alloy indenter pressing into the
sample surface to produce indentation, realizing the material
hardness measurement by measuring the diameter of the indentation,
The use of photoelectric sensor system to high magnification
optical measurement, equipped with automatic turret device, high
sensitivity touch screen operation interface, can achieve automatic
loading and unloading of electronic, automatic indentation marks,
microscopic auto focus measurement indentation diameter, GB / ASTM
hardness automatic conversion, automatic test report and other
functions, easy to operate, high detection efficiency. It can meet
the hardness testing requirement for the quality control and
qualified assessment of the workpiece sample. It is widely used in
metal processing and manufacturing, various metal material’s
failure analysis and other fields like colleges and research
institutions. It’s to improve the work efficiency, product
qualification rate, saving production costs necessary professional
precision testing equipment.
Technical Parameters
Technical specifications | Technical Parameters |
The power series | 612.5N(62.5kgf),980N(100kgf),1225N(125kgf),1837.5N(187.5kgf),
2450N(250kgf),4900N(500kgf),7350N(750kgf),9800N(1000kgf),14700N(1500kgf),29400N(3000kgf) |
Test force accuracy | 0.1% higher than the average Brinell hardness of 1% (1000Kgf above) |
Measuring range | 8 – 650 HBW |
Conversion scale | GB / automatic |
Brinell scale | HBW2.5/62.5,HBW2.5/187.5,HBW5/125,HBW5/250, HBW5/750,HBW10/100,HBW10/1500,HBW10/3000, HBW10/250,HBW10/500, HBW10/1000 |
Testing Force Application Mode | Automatic (loading, holding, unloading) |
Indenter objective lens conversion mode | Automatic |
Indentation measurement | Automatic |
Image focus | Automatic or manual |
Turret | Automatic or manual |
Camera (pixel) | 1.3 million / 3 million |
Indentation measurement | Automatic or manual |
Hardness value display | Automatic |
display usage | LCD touch screen |
Test force holding time | 5~60s |
Minimum division | 0.001 mm |
Applicable material maximum height | 400mm |
Max distance from head to body | 250mm |
Test report | Automatic |
Voltage | AC 220V/50Hz |
Size | 760*320*1050mm |
Total Weight | 200kg |
Indication accuracy
Standard Block | Indicating Error%(H) | Repeatability Error |
≤125 | ±3 | 0.03`d |
125˂HBW≤225 | ±2.5 | 0.025`d |
>225 | ±2 | 0.02`d |
H:Hardness of standard block `d:Indentation diameter(average)
Working Principle
Hardness is not a simple physical quantity, but a reflection of the
material elasticity, plasticity, strength and toughness .and
hardness test is the most simple mechanical testing method to
determine the metal material performance. Also one of the important
means to judge the products quality.
Brinell hardness test: Test force(F) is on the steel ball with
certain diameter(D) , pressed on sample surface. After a period of
time, cancel the force. The indentation diameter is get by
measuring with micrometer ocular,thus to calculate the average
pressure(N/mm²).Then we can get the Brinell hardness of the sample
as below:
Tips:F:Test force on steel ball,unit:N
D:Diameter of steel ball ,unit:mm
D:Indentation diameter,unit:mm
0.102:Rule coefficient
Features
- Widely used in metal processing and manufacturing, various metal
material’s failure analysis and other fields like colleges and
research institutionsand other fields;
- High degree of automation, accurate measurement, suitable for large
demand or high precision measurement of high-end users.
- Equipped with portable high-definition USB camera, ergonomic
design, feel comfortable, delicate and durable.
- Easy to operate, can automatically identify the edge of
indentation, automatic removal of burrs to achieve accurate
indentation measurement, synchronous display.
- With threshold overrun automatic alarm function, apply to the bulk
of finished products or semi-finished pieces of paper-by-piece
detection.
- Image and the corresponding measurement data files can be set to
automatically store, open, store, print, modify, call and other
operations, generate measurement reports;
- Real-time statistical measurement data, display the maximum,
minimum, average, deviation, CP, CPK and so on.
- The automatic turret mechanism can realize the automatic switching
function between the objective lens and the indenter and improve
the detection efficiency.
- Using touch screen display interface, display operation
integration, simple and intuitive, the technical requirements of
the operator is not high;
- Equipped with excellent performance of the carbide indenter, high
hardness, wear resistance, good toughness, while high temperature,
corrosion resistance, to ensure that the instrument measured
standard, stable and reliable;
- Equipped with high-speed thermal printer, you can quickly print out
the test data;
- According to ASTM_E140, DIN 50150, GBT_1172 and other different
standards for hardness conversion;
- Diameter measurement accuracy of up to 0.001mm, meet ASTM E 10, GBT
231, ISO-6506 and other standards;
Applied condition
- Cast iron, steel, non-ferrous metals, soft alloy of metal material
(please see table below);
- Hard plastic, bakelite and some nonmetallic material.
Materials | Brinell hardness | 0.102F/D2 |
Steel | | 30 |
Steel and cast iron | <140 | 10 |
≥140 | 30 |
Copper and copper alloys | <35 | 5 |
35~130 | 10 |
>130 | 30 |
Light metals and their alloys | <35 | 2.5 |
35~80 | 5,10 |
>80 | 10 |
F:Test force(k) D:Head diameter(mm) |
Application field
- Metal processing industry quality control links
- Universities teaching and demonstration test
- The failure test of metal material
- The material hardness test of scientific research institutions
Working conditions
- Working Temperature:18℃~28℃;
- Relative Humidity:≤65%;
- Clean environment, no vibration;
- No corrosive media around.
Configuration
Standard Configuration | No. | Item | Quantity | Note |
1 | Main body | 1 | |
2 | Automatic Brinell Hardness Measure System | 1 | |
3 | φ2.5mm ball | 1 | |
4 | φ5mm ball | 1 | |
5 | φ10mm ball | 1 | |
6 | Small testing table | | Diameter 80mm |
7 | Large testing table | 1 | Diameter 200mm |
8 | V-shape testing table | 1 | For cylindrical sample |
9 | Standard Hardness Block HBW/3000/10(150-250) | 1 | |
10 | Standard Hardness Block HBW/1000/10(75~125) | 1 | |
11 | Standard Hardness Block HBW/187.5/2.5(150-250) | 1 | |
12 | Industrial digital camera | 1 | |
13 | Automatic measurement and image processing system | 1 | |
14 | Fuse wire(2A) | 3 | |
15 | Power line | 1 | |
16 | Plastic dust cover | 1 | |
17 | Attached files | 1 | |
18 | Instrument case | 1 | |
Maintenance and care
- Each technical requirement of the instrument has already reached
the national standards before leaving factory. But its disassembly,
transportation or voltage after delivery might cause some data in
the instrument changed. So to make the electronic component in
normal operation to reduce the testing error, you can use test
force of 29400N(3000kgf) pressing times before starting the
instrument to eliminate the instrument deformation.
- The anti-interference component has been installed in the circuit
to ensure the transmission of the loading or unloading single of
the test force at all levels. At the same time, make sure no strong
interference source around when using the instrument, and power off
the instrument after finished the testing.
- All the screws and the caps have been fasten tightly before the
instrument leaving factory. However, the screw and cap may become
less crowded because that the screw lever for loading and unloading
are rotating all the time. If there is irregular noise, when the
screw lever rotating, please check and tightened the screw and cap
as the below figure shown.
Pulley and cap
- If there is some slight noise during loading or unloading, it is
the loading mechanism making adjustment automatically, which is a
normal phenomenon.
- Hardness of the use of a period of one year, two adjacent
indentation or indentation center to the edge of the distance of
not less than 3mm, too close will affect the measured results;
- The instrument screw level and other movable surface should be
lubricated regular.
- When not in use for a long time, please cover the dust cover to
prevent dust into the instrument interior. And the hardness block,
indenter should be coated with antirust oil to prevent rusting
after using.
- Start using again after long time idling, please make testing after
preheating the electrical components.
- The accuracy of the reading microscope has been adjusted before
leaving factory. It is prohibited to disassembly without
authorization. Otherwise, it will reduce the reading accuracy of
the micro eyepiece.
- The storage and using of the reading microscope should avoid dust,
damp and corrosive gas environment;
- If there is dirt on the surface of the reading microscope lens,
please wipe it with soft absorbent cotton or lens paper. If there
is oil pollution, please wipe it slightly by the absorbent cotton
with industrial alcohol or ether.
- Don’t disassemble the instrument without authorization, maintenance
related matter, please contact MITECH after-sale service department
with 4000600280