Surface LCD Mechatronics Digital Hardness Tester Rockwell Mitech MHRS-45A

Technical Parameters

Indication Error

Working principle
The surface rock hardness test based on the cone diameter of a cone or low-end diamond ball pushes the hardness of the sample surface. In the test, the initial police test is loaded first and the main test is loaded. After pressing the sample test surface, the main test needs to be removed according to the bending depth of the test test while maintaining the initial test test and determining the value of the surface rock hardness of the metal material you can measure.
As shown in the figure below, 0 - 0 is the situation where the diamond indenter has not yet contacted the sample. The first test test in the 1-1 indent situation is to press the depth of h1, the first test is to eliminate the surface of the sample. This is not clean, caused by the accuracy of the results of the tests. In the figure, 2-2 is the indenter situation under the total test (the test test and the main test), the depth of indentation is h2.3-3, and the indenter after removing main test force As the position of metal elastic decay produces a specific recovery, the actual pressure h3 in depth h3. The main test that causes indent plastic disagreement at h depth is h3 - h1. The value of Rockwell's hardness is determined by the size of h, and the hardness is lower because the depth is larger. On the other hand, the hardness is increasing. Press the Rockwell Surface Hardship Unit 0.001 mm. The hardness value obtained in the surface rockwell hardness value identified by the HRN symbol (T) is called.

Features

• Widely used for surface Rockwell hardness test with a variety of metal and non-metallic materials;
• Adopt large-screen LCD and LED digital dual-screen display, easy to operate, and it can visually display the test results and the measurement parameters;
• With fast test speed, small indentation of the workpiece after testing, it is the high-tech products of the mechanical and electrical integration ;
• Support the conversion among various hardness scales such as Brinell, Vickers and etc;
• Option for various specifications of the indenter, support many types of Rockwell hardness scales testing ;
• Equipped with high-speed thermal printer, quickly print out the test data;
• Diamond indenter, durable wear and accurate measurement;
• Using grating displacement sensor, and the measurement error is small;
• Consistent with EN-ISO-6508,GB/T230.1,GB/T230.2,JJG112,ASTM E18 and other relevant standards at home and abroad.

• During testing, to ensure accuracy, please make sure the distance between the adjacent indentation center and the distance from the indentation center to edge of the specimen is greater than 3mm;
• Normally, the first point is only used to offset the gap of each support surface without needing to record the test result. Record the statistical test result from the second point;
• It is strictly prohibited to turn the variable loading handwheel when the instrument load or unload the test force. Rotating the handwheel forcibly will cause the internal gear dislocation, test force in chaos and even damage the internal parts of the instrument;
• If the specimen has visible deformation marks on the back and edges, the test result would be useless. It should choose the intender or test force to test again;
• The test personnel should follow the operating procedures.Before and after the test,it should be repeated with standard block calibration equipment;
• Pay attention to palm the instrument for carrying to forbid falling across. Please fix well the measuring lever, counterweight and boom before carrying;
• 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;
• Long time after the re-enabled,it should be preheated the electrical components before test
• The hardness tester should be calibrated at least once a year to ensure its accuracy;
• Please regularly put a small amount of oil on the screw and the handwheel interface;
• Don’t disassemble the instrument without authorization, for maintenance related matters, please contact MITECH after-sale service department with 4000600280

Mitech CO.,LTD. located in Beijing, China and was founded in 2004 by a group of doctors and masters graduated from tsinghua or Peking University. It is a professional NDT testing manufacturer, we have our own R&D office for newest and highest technology.

Over ten years, Mitech has always adhered to the business philosophy,

"Technology innovation for development, high quality service as the forward boat", relying on the mastered technology and the tireless pursuit for science and technology, Mitech continuously blends in leading-edge technology to NDT instrument R&D and application, makes the product performance and technical indicators reaching to the international leading level.

From NDT portable instrument to large automatic detection system. Mitech owns intellectual property rights of core technology and it has already applied for invention patents and software copyrights and passed international certification such as EU CE certification and Russian GOST certification etc. Mitech products has been widely used in quality control and safety monitoring of aerospace, petrochemical pipeline, military industry, nuclear industry, ship, automobile, metallurgy, steel structure manufacture, boiler pressure vessel and so on, do the best working for safe operation of industrial production.

Mitech users have spread all over the world such as Japan, Korea, India, Germany, USA etc. By the best quality with competitive price, Mitech had gained a good reputation from global customers. As the professional NDT manufacturer, Mitech will insist our rule of serving for world NDT industry for best and quick development. We are looking for NDT agents from all over the world and welcome knowledgeable people to join us for development.

As professional NDT manufacturer, Mitech will supply you best quality products with competitive price. Professional business team can provide more promotion support according to local market together with our comprehensive experience to help you do professional needs analysis and market protection, launch new products continuously to create more opportunities for long cooperation. Meanwhile, we will support you strong after-sale service to solve more trouble. Any product quality problem within 3 months, we will replace a new one for free, all products with warranty up to two years and life-long maintenance. We will provide maintenance training and accessories with cost price. Mitech has sound market management system to help you manage market precisely and share customer information, establish and standardize market system for long-time win-win cooperation.

Mitech devotes to creating the value for world NDT industry as own duty, unswerving to provide perfect products to the market, providing customers with conscientious service, sincere management to create famous brand.

Mitech is willing to cooperate with world NDT colleagues and makes the efforts for more brilliant tomorrow, struggling for more secure NDT world.