Question
Download Solution PDFমাইক্রোমিটারে রুক্ষতা গ্রেড নং 'N4' এর মান কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFব্যাখ্যা:
- ISO একটি অঙ্কনের উপর পৃষ্ঠের রুক্ষতা নির্দিষ্ট করার সময় পছন্দের রুক্ষতা মান এবং সংশ্লিষ্ট রুক্ষতা গ্রেড নম্বরগুলির একটি kromer সুপারিশ করেছে।
- এই মান এবং গ্রেড সংখ্যাগুলি হল:
|
রুক্ষতা মান, Ra (μm) |
রুক্ষতা গ্রেড নম্বর |
রুক্ষতা প্রতীক |
|
50 |
N 12 |
∼ |
|
25 |
N 11 |
∇ |
|
12.5 |
N 10 |
|
|
6.3 |
N 9 |
∇∇ |
|
3.2 |
N 8 |
|
|
1.6 |
N 7 |
|
|
0.8 |
N 6 |
∇∇∇ |
|
0.4 |
N 5 |
|
|
0.2 |
N 4 |
|
|
0.1 |
N 3 |
∇∇∇∇ |
|
0.05 |
N 2 |
|
|
0.025 |
N 1 |
Last updated on Jun 26, 2025
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