934-1S digital Babbitt hardness tester

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The 934-1S digital Babbitt hardness tester is a newly designed and developed indentation hardness tester. It is characterized by having a bracket rotation positioning device and a hardness value digital display device. Non dismantling hardness value calibration and adjustment device.

934-1S digital Babbitt hardness testerFeatures:

1. One handed operation, no user experience required, can be tried in any situation as long as it is within reach.

2. Digital display of hardness value to avoid errors caused by visual observation of the dial.

3. The conversion of hardness units can obtain corresponding Vickers, Rockwell, Vickers, and Brinell hardness values

4. The rear bracket rotation positioning device does not require disassembly.

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Calibration and adjustment of hardness values without disassembling the hardness tester934-1S digital Babbitt hardness tester

Purpose:The Babbitt hardness tester is mainly used to test aluminum and aluminum alloys. Testing aluminum profiles, plates, pipes, bars, aluminum alloy castings, forgings, and machined parts, testing ultra thick aluminum alloy materials and assembled aluminum alloy products(For example, aluminum alloy doors and windows, curtain walls, fire ladders, etc)Related standards:ASTM B648Test Method for Measuring the Hardness of Aluminum Alloys with Barcol Hardness Tester. Another main application of the Babbitt hardness tester is for testing fiberglass(Glass fiber reinforced plastic)And hard plastic. Most fiberglass products require testing for Babbitt hardness in their product standards. relevant standards:GB/T3854-2005Method for testing the Bakool hardness of reinforced plasticsASTM D2583-07

Test Method for Measuring the Indentation Hardness of Hard Plastics Using a Babbitt Hardness Tester.934-1S

The digital Babbitt hardness tester can be used to test very soft metals, soft plastics, leather, rubber, wood, etc934-1S digital Babbitt hardness tester

Working Principle:Brinell hardness tester(Bakool hardness tester)100It is an indentation hardness tester that uses a specific indenter to press into the surface of the specimen under the pressure of a standard spring, and characterizes the hardness of the specimen by the depth of the indentation. The Babbitt hardness tester hasNumber of divisions, each division unit represents indentation0.0076mm

The depth. The deeper the pressure, the higher the reading, and the softer the material.The formula for Babbitt hardness is:

HBa=100-L/0.0076HBa-Babbitt hardness symbol

;L -indentation depth

(mm);0.0076-The indentation depth represented by the unit hardness value

(mm)934-1S digital Babbitt hardness tester

Operation Method:When measuring hardness, the tip of the indenter and the foot of the hardness tester should be placed on the same plane as the surface being measured. To ensure accurate reading, it is necessary to ensure the area around the tip of the current pressure needle1.6mmThere is no indentation left by the previous needle inside. For0.79mm

The thickness correction plate shall not have integers on both sides. The readings obtained on the old indentation will affect the accuracy of the readings, therefore, sufficient and suitable calibration plates should be provided.

Apply force and carefully press down the handle of the hardness tester, observe the indicator reading, and pay attention to the peak value of the reading. For softer materials, there may be some drop in the peak value, which is normal and determined by the properties of the tested material. As a general rule, the recommended number of measurements should increase as the tested material becomes softer.

The pressure needle must be kept perpendicular to the surface of the pattern. To ensure verticality, the feet of the hardness tester must be in the same plane as the tip of the indenter. The two planes of the support must be connected to the same surface. Different styles of rules should be installed in a fixture to ensure verticality is maintained. For flat shaped objects, appropriate padding can be added between the hardness tester housing and the support legs to accommodate the thickness of the pattern. If the pressure needle is not perpendicular to the surface, the reading will be inaccurate.

Notes:Do not attempt to re polish the damaged indenter!

The structural dimensions of the indenter determine the accuracy of the reading, and re polishing may result in errors. To check the condition of the indenter, first visually inspect for damage, then place the hardness tester on a hard and flat surface, place a suitable calibration plate under the indenter, carefully and steadily press down on the handle of the hardness tester to avoid the indenter slipping to one side, and the reading on the indicator should be within the range indicated by the calibration plate. If not, refer to the calibration steps below to calibrate the hardness tester.934-1S digital Babbitt hardness tester

1.5 HBa

Standard configuration: 1host

Taiwan 2Standard hardness block

block 1Calibration wrench

a 2Spare pressure needle