1. What are the names of 3 die casting surface defects?
能否说出3种压铸件表面缺陷？
2. Which is more important for good casting surface finish, the alloy or the
metal pressure?
如果要提高压铸件表面，哪一个更重要：合金还是压力？
3. What will happen if the metal temperature is too high?
如果金属液的温度过高，会发生什么？
4. Does the gate velocity of the metal influence the die temperature?
浇口的速度是否影响模具的温度？
5. What is the minimum temperature for aluminum to get a very good
surface finish?
为了得到好的表面质量，最低的铝合金温度应该是多少？
6. What happens if the die spray time and the casting cycle time are both
increased?
如果模具的喷涂时间和压铸时间同时增加，会发生什么？
7. What changes can be made to correct cold flow defects?
用什么办法可以改善表面冷纹缺陷？
8. When other things remain the same but the gate area is reduced, what
happens to the plunger tip?
如果别的条件不改变，只减少浇口面积，压射冲头处会有什么变化？
9. What happens when the gate size, the plunger size, and the hydraulic
pressure are all increased?
当浇口面积增大，冲头直径增大，系统压力增大，会发生什么？
10.When the plunger diameter is decreased, what happens to the fill time?
当冲头的直径减少，填充时间会发生什么变化？
【PDF课件下载地址】
[点击下载]
