The wear of vacuum pump transmission parts is a common problem, including bearing position, bearing seat, bearing chamber, keyway and thread. The traditional method is mainly repair welding and brush plating, but both have certain drawbacks: repair welding high temperature The generated thermal stress can not be completely eliminated, which is easy to cause material damage, resulting in bending or breakage of the parts. Brush plating is limited by the thickness of the coating and is easy to peel off. Both of the above methods use metal to repair the metal and cannot change the “hard pairâ€. The hard-fit relationship will still cause wear again under the combined action of various forces. In the contemporary Western countries, the repair methods of polymer composite materials are often used for the above problems, and the application has more comprehensive properties such as superior adhesion and excellent compressive strength. The application of polymer material repair can be dismantled and free of machining. There is no effect of repair welding thermal stress, and the repair thickness is not limited. At the same time, the metal material of the product does not have the concession, which can absorb the shock and vibration of the equipment, avoid the possibility of re-wearing, and greatly extend the service life of the equipment components. Enterprises save a lot of downtime and create huge economic value.
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