What is the purpose of pickling and washing for pre-treatment of hot-dip galvanized wire?
Release time:
2024-05-22
The purpose of pickling mainly includes the following points
The purpose of pickling mainly includes the following points:
First, it is to remove the rust layer, oxides and other dirt on the surface of the wire rod to make the surface clean, and fully prepare for the subsequent galvanizing, which is conducive to better adhesion of the zinc layer.
Second, through pickling, the surface of the wire rod can be activated and its reaction activity enhanced.
The purpose of washing is:
To rinse the acid solution and reaction products remaining on the surface of the wire rod after pickling to prevent the residual acid solution from having an adverse impact on the subsequent process and product quality, and also to provide a clean surface condition for entering subsequent links such as fluxing.
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