Forms a uniform oxide film on stainless steel, significantly reducing corrosion risk. This is a high corrosion-resistant, low-cost surface treatment technology that can accommodate complex shapes and mass-produced items.
The passivation treatment by Toyo Chemical involves chemically re-forming a stable oxide film (passivation film) on the surface of stainless steel, significantly enhancing the metal's corrosion resistance as a post-processing technology. It reconstructs the protective film that may have been temporarily lost during processing, welding, or heat treatment, preventing rust formation and improving the reliability and durability of the product.
This treatment is applicable not only to austenitic stainless steels but also to ferritic and martensitic stainless steels, with proven results in various materials including SUS304 and SUS316. It is often introduced as a subsequent process after pickling or degreasing, and when combined with electropolishing or buff polishing, it can yield further benefits in both appearance quality and functionality.
Since the passivation treatment is a non-contact process using chemical solutions, it allows for uniform treatment of internal surfaces and complex shapes without the risk of deformation. It is also capable of handling large-scale processing, enabling stable supply at low costs.
Main applications include medical devices, food manufacturing equipment, semiconductor-related components, sanitary piping, and valve parts. This treatment technology, which supports the production of rust- and corrosion-resistant products, has received high praise in environments where long-term quality maintenance is required.
- Company：東陽理化学
- Price：Other
