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铸造外圆角(JB/ZQ 4256—1997) |
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表面的最小边尺寸 P/mm |
过 渡 尺 寸 R/mm |
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|
外 圆 角 α |
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|
≤50° |
51°~75° |
76°~105° |
106°~135° |
136°~165° |
>165° |
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≤25 |
2 |
2 |
2 |
4 |
6 |
8 |
|
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>25~60 |
2 |
4 |
4 |
6 |
10 |
16 |
|
|
>60~160 |
4 |
4 |
6 |
8 |
16 |
25 |
|
|
>160~250 |
4 |
6 |
8 |
12 |
20 |
30 |
|
|
>250~400 |
6 |
8 |
10 |
16 |
25 |
40 |
|
|
>400~600 |
6 |
8 |
12 |
20 |
30 |
50 |
|
|
>600~1000 |
8 |
12 |
16 |
25 |
40 |
60 |
|
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>1000~1600 |
10 |
16 |
20 |
30 |
50 |
80 |
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>1600~2500 |
12 |
20 |
25 |
40 |
60 |
100 |
|
|
>2500 |
16 |
25 |
30 |
50 |
80 |
120 |
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注:如果铸件按上表可选出许多不同的圆角“R”时,应尽量减少或只取一适当的“R”值以求统一。 |
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