Rockwell Hardness Tester: Difference between revisions
From Pumping Station One
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File:Rockwell_Major_Load_Lever.JPG|Major Load Lever | File:Rockwell_Major_Load_Lever.JPG|Major Load Lever | ||
File:Rockwell_Dial.JPG|Dial | File:Rockwell_Dial.JPG|Dial | ||
File:Cold_Metals_Tan_Cabinet.JPG|Tan Cabinet | |||
</gallery> | </gallery> | ||
The indentors and hardness test blocks and spare anvils are in the tan cabinet. | The indentors and hardness test blocks and spare anvils are in the tan cabinet, fifth drawer down. | ||
=== Indentor / Penitrator Choice === | === Indentor / Penitrator Choice === | ||
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Secure the penetrator/indentor and the appropriate anvil in the tester. | Secure the penetrator/indentor and the appropriate anvil in the tester. | ||
Select correct weight, 150kg for C scale 100 kg for B scale. | Select correct weight, 150kg for C scale 100 kg for B scale. Three weights are stacked in the tester, the bottom is 60kg, next is 40kg then 50kg. With all three weights the total is 150kg, for the C scale. Remove the top weight and you have 100 kg for the B scale. | ||
3. Apply Minor Load | 3. Apply Minor Load | ||
Slowly turn the hand wheel to bring the small dial indicator hand to the line. This applies minor pressure load to the penetrator. | Slowly turn the hand wheel to bring the small dial indicator hand to the line. This applies a minor pressure load to the penetrator. | ||
4. Apply Major Load | 4. Apply Major Load | ||
