& In the process of using diamond grinding wheels, we not only need to pay attention to the usage method, but also need to replace the unusable grinding wheels in a timely manner to avoid unnecessary losses. So, what are the conditions for replacing diamond grinding wheels? What are the precautions for using diamond grinding wheels? Let's take a look together below< br> Replacement conditions:
1. Wear and tear issue
Any grinding wheel has its own wear and tear requirements, and when the wear reaches a certain level, a new grinding wheel must be replaced. It is extremely unsafe to exceed the wear and tear requirements in order to save materials. As a general rule, when the grinding wheel wears out to a diameter 10mm larger than the chuck diameter, a new grinding wheel should be replaced< br> 2. Validity issue
New grinding wheels retrieved from the warehouse may not necessarily be qualified grinding wheels, and even new grinding wheels purchased from the manufacturer may not necessarily be qualified grinding wheels. Any grinding wheel has a certain expiration date, and if used within that period, it is a qualified grinding wheel; If used beyond its expiration date, it may not necessarily be a qualified grinding wheel. The regulations stipulate that "grinding wheels should be used within their validity period, and resin and rubber bonding agent grinding wheels must undergo a rotary test after being stored for one year. Only those that pass the test can be used< br> 3. Texture issue
If cracks are found locally on the grinding wheel during use, it should be immediately stopped and replaced with a new one to avoid accidents such as wheel breakage and injury< br> Attention:
1. Side grinding issue
In the daily use of grinding machines, we often find that some operators indiscriminately use the side of the grinding wheel for grinding without distinguishing the type of grinding machine or the type of grinding wheel, which is a serious violation of safety operating procedures. According to regulations, it is not advisable to use a grinding wheel with a circular surface as the working surface for grinding. This type of grinding wheel has a high radial strength and a low axial strength. When the operator applies too much force, the grinding wheel may break and even injure people. This behavior should be prohibited in actual use< br> 2. Positive operational issues
In daily use, many operators are accustomed to operating directly in front of the grinding wheel because they can exert force in this direction. In fact, this behavior should be particularly prohibited in the operation of grinding machines. According to the operating procedures, when using a grinding wheel to grind workpieces, the operator should stand on the side of the grinding wheel and not operate on the front of the grinding wheel, in order to prevent the grinding wheel from flying out or breaking and injuring people when it malfunctions< br> 3. Force operation problem
When using a grinding machine, some operators, especially young operators, use excessive force in order to achieve fast grinding speed, which is an extremely unsafe operating behavior. Any flat grinding wheel has a certain strength, and doing so may cause the wheel to break or even fly out, which is also a behavior that should be prohibited< br> 4. Joint operation issues
In actual daily operations, there are also situations where two people share a grinding machine to operate simultaneously in order to rush production tasks and rush work time. This is a serious violation of regulations and should be strictly prohibited. When one grinding machine is not enough, the method of adding grinding machines can be used to solve the problem, and it is absolutely not allowed to share one grinding machine at the same time< br> Through the introduction, we can have a preliminary idea of when to replace the diamond grinding wheel in a timely manner, and also understand what needs to be paid attention to. It can facilitate our future use, avoid some operational errors, and reduce losses< br>