Knowledge

1. Turn off the power of the hardness tester and lower the test bench to the lowest point. 2. Add the hydraulic oil to the hardness tester to the spec

Permanent indentation: Using 3000kg test force and 10mm ball, the indentation can accurately reflect the true hardness of coarse grain materials such

Brinell hardness tester can be used to test castings, forgings, steel in the delivery state, non-ferrous metals and semi-finished steel workpieces tha

The temperature cannot be changed. An increase in the temperature of the Vickers hardness tester will cause the measured hardness value to be lower, a

1) Different properties 1. Rockwell hardness is an index that determines the hardness value based on the depth of plastic deformation of indentation.

1. Turn on the power of Vickers hardness tester, adjust the strength according to the type of sample. The brightness, pressure time, and unit can also

The Vickers hardness tester is a new type of Vickers and Knoop hardness testing instrument that uses precision mechanical technology, photoelectric te

(1) When the hardness tester is not used for a long time, the machine should be covered with a dust cover. (2) Regularly inject a small amount of engi

(1) Regularly inject a small amount of engine oil into the contact surface between the screw and the handwheel. (2) Before using the hardness tester,

(1) Clean the top surface of the screw and the upper and lower end surfaces of the workbench, and place the workbench on the screw table. (2) Wipe the

A scale: used to measure metals with a hardness exceeding 70HRC (such as tungsten carbide, cemented carbide, etc.). It can also measure hard sheet mat

Divided by application: general Rockwell hardness tester, surface Rockwell hardness tester, comprehensive Rockwell hardness tester. According to the o