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One, product introduction
HB-2 hammering type Brinell hardness tester is a diameter just ball with instantaneous impact load, the ball indentation measurement, obtain the corresponding data, through measurement of indentation hungry, obtain the corresponding data, and then through the look-up table to obtain specimen hardness value. The hardness tester has the advantages of simple structure, convenient carrying, convenient use, is the industrial and mining enterprises, production workshop, workshop, warehouse and other materials materials measurement of Brinell hardness desired hardness meter.
Two, the use of methods
¡¹in the natural state or a state of the steel annealed Brinell hardness and tensile strength values ( limited to non-austenitic steel )
¡¹in refining quenching or quenching plus tempering state steel Brinell hardness and tensile strength values ( limit and non austenitic steel )
Brinell hardness of cast iron
Brass castings of the Brinell hardness value
¡¹forging brass Brinell hardness value
¡¹copper Brinell hardness value
Of the Brinell hardness value of tin bronze alloy
Aluminum alloy casting parts of the Brinell hardness value
Before trial should do the following preparation, test before the standard test block ( standard hardness test block ) large chamfering shape is inserted into the ball head and balance between embedded in the body of the balance spring head standard test block is tightly pressed on the steel ball.
On the surface of the material under test should be above the rust layer polishing to obtain a flat and smooth surface, so that the test specimen to obtain clear ball indentation, so as to obtain more accurate numerical.
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