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From Pumping Station One
Rockwell Hardness Tester (view source)
Revision as of 23:13, 17 January 2018
, 23:13, 17 January 2018→Operation
== Operation ==
== Operation ==
Select the correct indentor - diamond for HRC other material for HRC
Select the correct indentor - diamond for HRC other material for HRC ( need identification and use of indentors ib stock)
1) Install indentor
1) Install indentor (photo ?)
2) Support load
2) Support load (how?)
3) Place component on anvil, use a specialized anvil if needed ( eg. round stock)
3) Place component on anvil, use a specialized anvil if needed ( eg. round stock)
4) Turn handwheel
4) Turn handwheel to apply the 'minor load' until needle points to indicator mark on dial. ( photo?)
5) Zero out dial.
6) Depress trip lever to apply 'major load' , allow time to settle. (where is trip lever?)
7) Release trip lever
8) Read dial for hardness. (photo example)
===Typical values===
===Typical values===
