Leeb Hardness

Leeb Hardness

With a certain mass of tungsten carbide ball head impact body, under the action of a certain force impact specimen surface, and then rebound. Because the hardness of the material is different, the rebound rate after impact is different. The permanent magnet material is installed on the impact device. When the impact body moves up and down, the peripheral coil inducts the electromagnetic signal proportional to the speed, which is converted into the Leicester hardness value through the electronic circuit. The symbol is marked as HL.
The hardness sensor is as small as a pen and can be operated directly by hand. No matter it is large, heavy workpieces or workpieces with complex geometrical dimensions, it can be easily detected.
Another advantage of the Richter hardness is that the surface damage of the product is very light, sometimes can be used as nondestructive testing; For all directions, narrow space and special parts of the hardness test has a unique.

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