技术指南
TECHNICAL INFORMATION |
 尺寸公差 DIMENSION TOLERANCE
线性公差 Linear Tolerance （参照德国熔模铸造公差标准 VDG Merkblad P690） |
基本尺寸（mm）
Nominal dimension
|
长*宽*高（mm）
Length*width*height |
中心距离（mm）
Centre line distances |
| D1 |
D2 |
D3 |
D1 |
D2 |
>
From |
≤
To |
公差
Tolerance |
公差带
Field |
公差
Tolerance |
公差带
Field |
公差
Tolerance |
公差带
Field |
公差
Tolerance |
公差
Tolerance |
| 0 |
6 |
±0.10 |
0.20 |
±0.08 |
0.16 |
±0.06 |
0.12 |
±0.25 |
±0.16 |
| 6 |
10 |
±0.12 |
0.24 |
±0.10 |
0.20 |
| 10 |
14 |
±0.15 |
0.30 |
±0.12 |
0.24 |
±0.09 |
0.18 |
| 14 |
18 |
±0.20 |
0.40 |
±0.14 |
0.28 |
| 18 |
24 |
±0.25 |
0.50 |
±0.17 |
0.34 |
±0.12 |
0.23 |
±0.32 |
±0.20 |
| 24 |
30 |
±0.30 |
0.60 |
±0.20 |
0.40 |
±0.14 |
0.27 |
| 30 |
40 |
±0.37 |
0.74 |
±0.25 |
0.50 |
±0.17 |
0.33 |
±0.50 |
±0.30 |
| 40 |
50 |
±0.44 |
0.88 |
±0.30 |
0.60 |
±0.20 |
0.39 |
| 50 |
65 |
±0.52 |
1.04 |
±0.38 |
0.76 |
±0.23 |
0.46 |
±0.71 |
±0.45 |
| 65 |
80 |
±0.60 |
1.20 |
±0.46 |
0.92 |
±0.27 |
0.53 |
| 80 |
100 |
±0.68 |
1.38 |
±0.53 |
1.06 |
±0.30 |
0.60 |
±0.90 |
±0.60 |
| 100 |
120 |
±0.76 |
1.52 |
±0.60 |
1.20 |
±0.33 |
0.66 |
| 120 |
140 |
±0.84 |
1.68 |
±0.65 |
1.30 |
±0.36 |
0.71 |
±1.15 |
±0.85 |
| 140 |
160 |
±0.92 |
1.84 |
±0.72 |
1.44 |
±0.38 |
0.76 |
| 160 |
180 |
±1.02 |
2.04 |
±0.80 |
1.60 |
±0.42 |
0.81 |
| 180 |
200 |
±1.12 |
2.24 |
±0.88 |
1.76 |
±0.43 |
0.86 |
±1.80 |
±1.00 |
| 200 |
225 |
±1.28 |
2.56 |
±0.95 |
1.90 |
±0.47 |
0.93 |
| 225 |
250 |
±1.44 |
2.88 |
±1.05 |
2.10 |
±0.51 |
1.02 |
| 250 |
280 |
±1.64 |
3.28 |
±1.15 |
2.30 |
±0.56 |
1.12 |
±2.20 |
±1.25 |
| 280 |
315 |
±1.84 |
3.68 |
±1.25 |
2.50 |
±0.63 |
1.26 |
| 315 |
355 |
±2.10 |
4.20 |
±1.40 |
2.60 |
±0.71 |
1.42 |
±2.60 |
±1.60 |
| 355 |
400 |
±2.40 |
4.80 |
±1.60 |
3.20 |
±0.80 |
1.60 |
|
D1：为通常使用的一般尺寸公差
D2：适用于有公差要求的重要尺寸
D3：需要采取矫正等特殊措施才能达到，
限于少数有特殊要求的尺寸 |
D1：General dimension tolerances
D2：Applicable to important dimensions requiring close tolerances
D3：Premium tolerances additional operations at extra cost,
only applied to a few special dimensions.
|
角度公差：±0.5o～±1o
直线度：每25mm误差0。127mm |
Angle Tolerance：±0.5o to ±1o
Straightness：0.005" per inch |
|
| 铸造能力范围 OUR CASTING CAPABILITIE |
| 1）铸孔深度 Depth of casting hole |
 |
通孔 Through Hole
D≤7mm: H≤2D
D>7mm: H≤3D
D>13mm: H≤4D
Dmin=2mm |
 |
盲孔 Blind Hole
D≤7mm: L≤1D
D>7mm: L≤1.5D
D>13mm: L≤2D
Dmin=2mm |
用陶瓷型芯可铸造出更深的孔，但会额外增加费用，只适宜于大批量生产。
The scope can be enlarged by the use of pre-formed ceramic cores at additional cost,only economical for large quantities. |
2） 最小壁厚 Minimum wall thickness：2mm
（小范围 1mm，1mm for small area） |
R≥0.3mm |
R≥0.5mm |
| 3） 铸造圆角 Radius of Rounds and fillets： |
| 4） 表面粗糙度 Surface Roughness：Ra6.4 |
| 5） 铸件重量 Casting Weight：5g-10kg |
| 6） 年生产能力 Annual output：500tons. |
| |
