Contributes to the stabilization of the immobilized film! The rust resistance inherent in stainless steel is dramatically improved.
The reason stainless steel is resistant to rust is thanks to the "passivation film" that covers its surface. This thin film prevents oxygen from penetrating to the interior, protecting the material from rust and corrosion caused by oxidation. "Passivation treatment" refers to the process of artificially enhancing the passivation film that stainless steel possesses, and it occupies an important position in metal finishing alongside polishing. Additionally, there are no changes in the appearance or dimensions of the material, allowing for long-term quality maintenance. 【Features】 ■ By artificially enhancing the oxide film, the inherent rust resistance of stainless steel is dramatically improved. ■ It protects the material not only from corrosion but also from corrosion due to high oxidative environments in steam conditions. ■ There are no changes in the appearance or dimensions of the material, enabling long-term quality maintenance. *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Available Processing Materials】 ■ Stainless Steel ■ SUS304 (L) ■ SUS316 (L) *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Applications】 ■ Pharmaceutical manufacturing piping units / heat exchangers / tanks ■ Stabilization of passivation films ■ Further improvement of corrosion resistance with electro-polishing as a preceding process * For more details, please refer to the PDF document or feel free to contact us.
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Company information
Sanwa Sangyo Co., Ltd. continues to take on new challenges and engage in a diverse range of work, focusing on creating employment and generating customers in the city of Kudamatsu. Today, we have become a skilled group that is well-supported by many customers for our work in metal surface treatment, including polishing and precision cleaning, as well as equipment installation in railway vehicles. Since the 2000s, we have entered a period of rapid change. We are committed to evolving despite the ever-changing environment around us, dedicating ourselves to deepening our technology and improving and passing on our skills, striving to remain a company that is needed worldwide.