Re: [請益] 硬度轉換
看板Mechanical (機械)作者horse5566lee (魅力型男★☆黃敬堯☆★)時間15年前 (2009/07/15 20:23)推噓71(71推 0噓 6→)留言77則, 76人參與討論串3/3 (看更多)
※ 引述《skyno321 (三媽)》之銘言:
: 請問一下板上的大大
: 維克式(HV)要用什麼公式 可以算成 洛式(HRE)
: 麻煩各位大大嚕
: 謝謝~~
: 感恩~~~
洛氏硬度我只聽過HRB跟HRC
但根據我一個在做逆向工程的國小同學李家宏的說法
家宏說他不知道維式轉洛式的公式
但家宏知道維式轉拉伸強度的公式
由HBN換算TS (拉伸強度)
HBN = Brinell Hardness
TS (psi) = 500 x HBN
TS (ksi) = 0.5 x HBN
TS (MPa) = 3.45 x HBN
TS (Kgf/mm2) = 0.345 x HBN
家宏說你再找找 拉伸跟洛式的轉換
因為家宏公司用的機器是維式硬度 這種實驗操作步驟對 大部分值不會差太多
反正出來的值 大於所設安全係數(或因子) 就OK了
--
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X
驚見家宏,快拜!
Y
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