洛氏B，F及G的洛氏修正值
来源：
作者：ndt 人气： 发布时间：2024-04-25
摘要：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
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，最小到0.5。洛氏和表面洛氏值，还需要大量的实践观察。 无损检测资源网
|
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