7. Finishing treatments
They mainly concern welded joints (and heat-treated parts) which, depending on the process, may be coated with oxides. The presence of these oxides means the absence of a passive layer, and therefore greatly reduced corrosion resistance. With certain welding processes (resistance welding), the surface of the material is hardly altered at all, and brushing may suffice. Otherwise, a pickling-passivation treatment is required.
7.1 Stripping
When the welded joint or an entire part is covered with colored oxides, these must be removed to restore the alloy's passive character.
Several techniques can be used.
-
Bath stripping
The typical composition is :
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Finishing treatments
Cleaning after installation
Article included in this offer
"Studies and properties of metals"
(
160 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
