Should the screw after installation be coated with manganese dibromide?
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What should be done with the bolts and nuts after installation? Is it necessary to apply manganese dichloride? Should it be coated on the screw?
The question posed by the original poster is too vague What installation? Equipment? Pipes? Process conditions? Usage environment? And even for corrosion and rust prevention, “manganese dichloride” isn’t used; it should be molybdenum disulfide, right? Please re-edit the question so that everyone can help answer it! !
I’ve learned it.* After installing the bolts here, we don’t apply anything other than a little oil
Carbon steel bolts used in pipeline installation are usually coated with molybdenum disulfide to facilitate future removal
:Handshake: When installing our bolts, molybdenum disulfide is applied mainly to the threaded part; it is generally not applied to the shank of the bolt, and this practice is mainly used for carbon steel bolts.
For outdoor installations, the exposed portion of the screw after tightening the nut should be coated with molybdenum disulfide to prevent difficulty in removal due to rust.
But applying molybdenum disulfide often makes it easier for dust to stick, which makes it harder to remove the bolts later on
Apply anti-corrosion treatment for easy disassembly during maintenance
For outdoor installations, the exposed portion of the screw after tightening the nut should be coated with molybdenum disulfide to prevent difficulty in removal due to rust.