There are rust spots on the surface of the unassembled slewing bearing. How to prevent rust?
April 18, 2022
Some manufacturers have reported that the customer has a rust problem after using the slewing bearing for a period of time, and even the surface of the slewing bearing that has not been assembled already has rust spots, and the mechanical efficiency will be reduced accordingly. As a kind of bearing field, slewing bearing is called "the joint of the machine". It is mainly used in truck cranes, railway cranes, port cranes, metallurgical cranes, excavators, filling machines, as well as navigation instruments and missile launchers. , tanks, robots, and revolving restaurants.
Slewing bearing manufacturers recommend anti-rust methods 1. For slewing bearing manufacturers, there will be certain anti-rust measures during the manufacturing process. ①It is common to spray anti-rust oil on the surface of the slewing bearing, but this method must be cleaned before the next process, which is more troublesome. ②Furthermore, for small slewing bearings, the slewing bearing can be immersed in the anti-rust tank for rust prevention. This is more suitable for water-soluble rust inhibitor or water-based rust inhibitor, and it will not be affected by the slewing bearing. The grooves cause uneven surface anti-rust solution. This anti-rust operation should be carried out in accordance with the actual process on site. ③ For large-scale slewing bearings, the spray-type anti-rust process can be used. This method is relatively simple. The liquid needs to be operated with a water-soluble anti-rust agent or a water-based anti-rust agent, and the surface drying time is short, and the efficiency of the liquid is relatively high. Note: No matter which method the manufacturer uses to prevent rust on the slewing bearing, it is necessary to select a suitable rust inhibitor or rust preventive oil, and the dryness and cleanliness of the surface of the slewing bearing should be guaranteed before packaging. 2. Packaging of slewing bearing ①Use ordinary plastic film for wrapping packaging, or directly use plastic bags. ②Three layers of packaging, namely anti-rust film, bubble film and nylon braided tape. For the above two packaging methods, to improve the rust prevention period of the slewing bearing and the quality of the product. It is recommended to use anti-rust film for direct packaging of the slewing bearing, and the outer packaging can be appropriately reinforced, braided tape, etc.
