Are there any advanced, energy-efficient stainless steel equipment methods for acid washing and passivation?
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Given the current technological advancements, regarding the pickling and passivation of stainless steel equipment, are there any new methods for carrying out this process that are both energy-efficient and efficient?
The acid washing and passivation of stainless steel is essentially a process that aims to achieve both \"cleaning\" and \"film formation\". Liquid products are efficient but require specialized equipment, while paste-based products are more flexible and safer, making them more suitable for the needs of most industrial settings. For processing small standard parts (such as 304 tableware), use an immersion-type acid pickling and passivation solution ； When working on the welds of chemical storage tanks or building curtain walls, it is preferable to use pickling and passivation paste that meets the CB/T3595-94 standard. Be sure to confirm the stainless steel grade before use (304/316 are sensitive to acid concentration), and test it on a small area first.
Thank you, I’ve learned something. At present, our chemical storage tanks use passivation paste