一、关于损坏的磨片
1. 立即停止使用；
2. 确保没有其他人正在使用它；
3. 如果是磨片，将其分解成不同的部分，使其完全无法使用；
4. 如果是金刚石磨片，分段或连续的边缘，用钳子弯曲其分段或边缘，使其完全无法使用；
5. 扔在垃圾桶里；
切断或磨削时损坏的磨片可能会断裂。因此，在使用磨片之前，您应该经常仔细检查它是否有损坏（磨损、破裂等）。
如果磨片损坏，则停止使用，也应该确保没有人会使用它。对磨片来说，您必须将其分成不同的部分。如果它是金刚石磨片，分段或连续的边缘，您必须用钳子弯曲其部分或边缘。然后你应该把它扔进垃圾箱。
二、关于角磨机
当使用角磨机时，切割时是否应使用不同的防护装置，而不是用磨削的防护装置？
是的！FEPA建议在使用角磨机时，使用覆盖砂轮两侧的防护装置进行切断。但是在打磨时，请使用开放式防护装置。详细信息请参见下图。
建议切断
建议磨削
警告：切勿使用没有防护装置的机器，因为您受到碎屑的伤害，特别是如果砂轮断裂，您将受到严重伤害。
注：文章来源于外文网站，由工业仓Taylor Ding翻译。
原文如下：
What should I do with a damaged disc
With a damaged disc, you should
1.Stop using it immediately
2.Ensure no one else is using it
3.If it is an abrasives disc, break it in different pieces to make it totally unusable
4.If it is a diamond disc, segmented or with a continuous rim, bend the segments or the rim with pliers to make it totally unusable
5.Throw it in the garbage
A damaged disc might break while you are cutting-off or grinding. Therefore, before using an abrasives disc, you should always inspect it carefully for damages (worn out, cracks…). If the abrasives disc is damaged, you must not use it. You should also make sure that no one will use it either. In the case of an abrasives disc, you must break it in different pieces. If it is a diamond disc, segmented or with a continuous rim, you must bend the segments or the rim with pliers. You should then throw it in the garbage.
When using an angle grinder, should I use a different guard when cutting-off than the one used for grinding
Yes, FEPA recommends that a guard, covering both sides of the wheel, is used for cutting-off, when using an angle grinder. When grinding, however, use an open guard. See drawings below for details.
Warning Never use a machine without a guard, as you would not be protected from debris, especially if the wheel breaks, you would be severely injured.
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