plating, anodizing, & finishing Q&As since 1989
RUST forms between each manufacturing operation
We are manufacturing parts for printing presses. The materials used are MS, EN8, EN9, EN24 and EN32. Our biggest problem is that in between machining processes (like between turning & grinding or between milling and surface grinding), our parts start rusting. We have a huge rusting problem if we store the parts for more than a week. Is there a coating we can do on the parts in between the various machining processes (like maybe apply a coat of oil - makes it very messy). Could there be a problem in the cutting oil? We use Castrol cutting oils. Help us get rid of this rust !Amit [last name deleted for privacy by Editor]
- Delhi, India
Try to apply Castrol Make DWX 30 or higher level of Rust Preventive Oil in a Dewatering Tank. A Dewatering Tank is one which has a tank with a provision of draining at the bottom. The components are immersed in a mesh inside the tank. The water content will sediment at the tank's bottom. This water is to be periodically drained. Also recommended concentration of Coolant is to be maintained.
- Coimbatore, India
Use zinc phosphating coating for rust prevention.This is most widely used by industries like you have.Manish Chandra
Blackodise your components in between.
1. It doesn't make any dimensional difference.
2. It will prevent rusting for at least few weeks.
Please note that all toolholders & high tensile nuts & bolts are blackodised.
Please use semi synthetic coolant of the type which gives in-house corrosion protection of machined parts without oil also.Ashok Konduskar
- Navi Mumbai, India
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