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不同硬度制加到测试结果的不同直径部件的修正值
加到洛氏C,A及D的修正值
硬度 | 凸柱表面直径 | ||||||||
读值 | 1/4 in | 3/8 in | 1/2 in | 5/8 in | 3/4 in | 7/8 in | 1 in | 1-1/4 in | 1-1/2 in |
6.4 mm | 10 mm | 13 mm | 16 mm | 19 mm | 22 mm | 25 mm | 32 mm | 38 mm | |
20 | 6.0 | 4.5 | 3.5 | 2.5 | 2.0 | 1.5 | 1.5 | 1.0 | 1.0 |
25 | 5.5 | 4.0 | 3.0 | 2.5 | 2.0 | 1.5 | 1.0 | 1.0 | 1.0 |
30 | 5.0 | 3.5 | 2.5 | 2.0 | 1.5 | 1.0 | 1.0 | 1.0 | 0.5 |
35 | 4.0 | 3.0 | 2.0 | 1.5 | 1.5 | 1.0 | 1.0 | 0.5 | 0.5 |
40 | 3.5 | 2.5 | 2.0 | 1.5 | 1.0 | 1.0 | 1.0 | 0.5 | 0.5 |
45 | 3.0 | 2.0 | 1.5 | 1.0 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 |
50 | 2.5 | 2.0 | 1.5 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 | 0.5 |
55 | 2.0 | 1.5 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 | 0.5 | 0 |
60 | 1.5 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 | 0.5 | 0 | 0 |
65 | 1.5 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 | 0.5 | 0 | 0 |
70 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0 | 0 |
75 | 1.0 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0 | 0 | 0 |
80 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0 | 0 | 0 | 0 |
85 | 0.5 | 0.5 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 |
90 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
加到洛氏B,F及G的洛氏修正值 | |||||||||
硬度 | 凸柱表面直径 | ||||||||
读值 | 1/4 in | 3/8 in | 1/2 in | 5/8 in | 3/4 in | 7/8 in | 1 in | ||
6.4 mm | 10mm | 13mm | 16 mm | 19 mm | 22 mm | 25 mm | |||
0 | 12.5 | 8.5 | 6.5 | 5.5 | 4.5 | 3.5 | 3.0 | ||
10 | 12.0 | 8.0 | 6.0 | 5.0 | 4.0 | 3.5 | 3.0 | ||
20 | 11.0 | 7.5 | 5.5 | 4.5 | 4.0 | 3.5 | 3.0 | ||
30 | 10.0 | 6.5 | 5.0 | 4.5 | 3.5 | 3.0 | 2.5 | ||
40 | 9.0 | 6.0 | 4.5 | 4.0 | 3.0 | 2.5 | 2.5 | ||
50 | 8.0 | 5.5 | 4.0 | 3.5 | 3.0 | 2.5 | 2.0 | ||
60 | 7.0 | 5.0 | 3.5 | 3.0 | 2.5 | 2.0 | 2.0 | ||
70 | 6.0 | 4.0 | 3.0 | 2.5 | 2.0 | 2.0 | 1.5 | ||
80 | 5.0 | 3.5 | 2.5 | 2.0 | 1.5 | 1.5 | 1.5 | ||
90 | 4.0 | 3.0 | 2.0 | 1.5 | 1.5 | 1.5 | 1.0 | ||
100 | 3.5 | 2.5 | 1.5 | 1.5 | 1.0 | 1.0 | 0.5 |
当测试圆柱型样本时,测试的准确性将受升降螺丝的对准线,V型样品台,压头,表面抛光度及圆柱的直线度的严重影响。这些修正值是大概的数值并代表的是平均值,小到0.5。洛氏和表面洛氏值,还需要大量的实践观察。
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