国际标准VDG P690规定的铸件公差
线性公差
|
公称尺寸mm |
D1公差（一般尺寸） |
D2公差（一些功能尺寸） |
|
to 6 |
± 0.15 |
± 0.12 |
|
6 to 10 |
± 0.18 |
± 0.14 |
|
10 to 18 |
± 0.22 |
± 0.17 |
|
18 to 30 |
± 0.26 |
± 0.20 |
|
30 to 50 |
± 0.40 |
± 0.31 |
|
50 to 80 |
± 0.45 |
± 0.37 |
|
80 to 120 |
± 0.55 |
± 0.44 |
|
120 to 180 |
± 0.80 |
± 0.65 |
|
180 to 250 |
± 1.20 |
± 0.95 |
|
250 to 315 |
± 1.30 |
± 1.10 |
|
315 to 400 |
± 1.80 |
± 1.40 |
直线型、平面性、平行性、形状公差
|
精度等级 |
长度 |
||
|
to 25 mm |
25 to 50 mm |
up to 50 mm |
|
|
允许误差 |
|||
|
D1 |
0.15 mm |
0.25 mm |
0.6% |
|
D2 |
0.10 mm |
0.20 mm |
0.4% |
角度值与正确角度公差
|
精度等级 |
公称尺寸 |
|||
|
to 30 mm |
30 to 100 mm |
100 to 200 mm |
up to 200 mm |
|
|
D1 |
允许偏差 |
|||
|
度数 |
30 |
30 |
30 |
20 |
|
mm / 100 mm |
0.87 |
0.87 |
0.87 |
0.58 |
|
D2 |
允许偏差 |
|||
|
度数 |
30 |
20 |
15 |
15 |
|
mm / 100 mm |
0.87 |
0.58 |
0.44 |
0.44 |
表面质量按照ISO R 468, DIN 4769和VSM 10321
|
|
Ra |
Rz |
Rt |
|
N9 |
6.3 |
23-32 |
25-38 |
2020年1月2日 10:54
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