1、线性公差（MM）Linear Tolerance
尺寸范围
Dimensions |
一般公差
Normal |
特别公差
Premium |
| 0-10 |
±0.12 |
±0.1 |
| 10-15 |
±0.20 |
±0.13 |
| 15-20 |
±0.25 |
±0.15 |
| 20-30 |
±0.30 |
±0.20 |
| 30-50 |
±0.4 |
±0.25 |
| 50-75 |
±0.5 |
±0.35 |
| 75-100 |
±0.65 |
±0.45 |
| 100-125 |
±0.8 |
±0.6 |
| 125-150 |
±1 |
±0.7 |
| 150-175 |
±1.2 |
±0.8 |
| 175-200 |
±1.5 |
±0.9 |
| 200-250 |
±1.8 |
±1.1 |
| >250 |
±0.8% |
±0.5% |
2、可铸出孔槽的极限尺寸 Limit Dimension for Cast Holes and Slots
| 项目Items |
孔径范围(MM)Hole Dia. |
孔深/孔径 L/D |
 |
φ2-φ3 |
L/D≤2 |
| φ4-φ7 |
L/D≤5 |
| ≥φ8 |
L/D≤10 |
 |
φ2-φ3 |
L/D≤1 |
| φ4-φ7 |
L/D≤2.5 |
| ≥φ8 |
L/D≤3.5 |
利用水溶型芯和陶瓷型芯，我们可以铸出更深和更复杂的孔和槽。
Deeper and more complicated holes and slots can be casted by using soluble wax cores and ceramic cores. |
3、角度公差 Angle Tolerance
角度形式
Angle Type |
 |
 |
 |
| 一般公差 Normal |
±1o |
±2o |
±2o |
| 特殊公差 Premium |
±0.5o |
±1o |
±1o |
铸件结构应避免急剧变化，尽可能避免尖角，圆角应达到R0.3以上。
Avoid the quick changes of casting structure, use fillet radius on internal angle when possible, which is no less than R0.3. |
 |
4、平面度、直线度、圆度公差 Tolerance for Flatness,Straightness and Roundness
| 铸件尺寸（MM）
Dimension |
一般公差
Normal |
特殊公差
Premium |
| 0-25 |
0.2 |
0.1 |
| 25-50 |
0.4 |
0.2 |
| 50-100 |
0.6 |
0.3 |
| 100-150 |
0.8 |
0.4 |
5、大小和重量范围 Size and Weight Range
| 项目 Items |
范围 Size |
最优 Premium |
| 轮廓尺寸(mm) Outline Dimension |
1000X620X380 |
< 100 |
| 重量(Kg) Weight |
0.001-80 |
0.1-1.5 |
| 最小壁厚(mm) Main Wall Thickness |
0.5 |
5-10 |
6、表面粗糙度(Ra/µm) Surface Roughness
铸造状态
Rough Castings |
重量(Weight) > 5Kg
主要壁厚(MialWallThinckness)>12mm
|
3.2-6.3 |
我公司有能力对铸件表面作以下精整处理，对于碳钢和低合金钢，可以作发黑、镀锌、镀铬、镀镍处理；对于不锈钢，可作研磨、手工拉丝抛光及镜面抛光、电抛光、钝化处理；所有钢种可作喷砂（玻璃砂、钢玉砂、石英砂）处理。
THe surface finish for the castings we can provide with are as the following: Blacking,zine plating, chrome plating and nichel plating for the carbon steel and the low alloy steel castings; Tumbling, hand dull polishing,mirror polishing, electrolytic polishing and passivation treatment for the stainless steel castings and sandblasting, including glass bead blasting, corundum-sand blasting and quartz-sand blasting form all the steel castings.
|
重量(Weight) < 5Kg
主要壁厚(MialWallThinckness)<12mm |
1.6-3.2 |
重量(Kg)
Weight |
0.8-1.6 |
|
