There are three main methods for cleaning blackened bolts. Follow the Special Bolt editor for a simple understanding!
1. Degreasing
During the production process, the bolt passes through several machines full of oil. Therefore, when the screw is finished, there will be oil stains on the surface, and it needs to be cleaned to restore the bolt. When cleaning, pour the special degreasing liquid for stainless steel cleaning. Rinse at room temperature for 3~8 minutes, then rinse with water to dry.

2. Deoxidize
Some of the oxide scale produced during the production of black bolts needs to be removed here to restore the bright appearance. It is the same as the degreasing method. Pour the special cleaning agent into the mechanical vibration tank at room temperature Clean the bolt mechanically for 2 to 30 minutes, and then clean and filter it again.
3. Polishing
Polishing is also a common method of bolt surface treatment. It requires the use of a machine and an abrasive to grind the surface burrs and protrusions of the blackened bolt to make it bright. After polishing, a cleaning step is required to make the surface Brighter.
In summary, the editor of Special Bolt introduced the cleaning method of blackened bolts.