过程管理——解决压铸件缺陷.ppt

Process Management过程管理 Class Objective学习目的 To familiarize operators with the process使操作者熟悉过程 To have the ability to trouble shoot the parts and machine具有解决零件及机器问题的能力 To reduce Scrap and Downtime减少废料及停机时间 To improve productivity提高生产率 What is Process什么是过程？ Definition A定义A A series of steps, actions, or operations used in making something or bringing about a desired result.一系列的步骤、行动或者操作，带来预期的结果。 Process Management过程管理 Ninety percent of all defects are made because of reasons other than machine settings, however in all die cast companies personnel tend to adjust (compensate for ) settings rather than identifying and fixing the problem. One reason for this is that there are so many variables associated with our die casting process. Sometimes the operator does not know where to start looking. 90%的产品缺陷归咎于各种非机器设置原因。但所有压铸公司的人员都宁愿调整设置，而不是分析及补救问题。原因之一是在我们压铸过程中使用到很多的变量。有时操作者甚至不知道该从哪里开始寻找原因。 One important thing to remember as you run your machine , If the process has been running OK and then suddenly you experience defects, it is unlikely that someone has adjusted settings on your machine. Therefore do not adjust any settings to correct the problem until you have checked and fixed any other problems.在操作机器时必须记得很重要的一点就是，如果过程运行顺利而你突然遭遇到废件，这就不可能是因为有人调整过你机器上的设置。因此在你检查及修理过其他问题之前不要调整任何设置。 IF ITS NOT BROKEN, DON’T FIX IT.如果机器没有坏，那么不要去修理它。 Process Management过程管理 Here at SMMP when we talk about the process it is usually understood to be the parameters used to cast a good part.在SMMP当我们谈及“过程”时，通常的理解是我们用来铸造一个好零件所用到的参数。 However the process can also be the sequence of events that the machine / cell or other equipment moves through during a cycle .但是过程也可以是机器/机床或其他设备在一个周期内移动时发生的一系列事情。 Process Management过程管理 First of all lets look at the cycle of the machine / cell and see how a process can be effected.首先让我们看一下机器/机床的运作周期，了解如何控制过程 Process Management过程管理 Tubes comes down and pours, Shot delay begins管子伸下来且倒料，压射延时开始 Shot takes place 压射发生 Intensifier fires ( if used ) and Dwell Time starts