Hastelloy thermal spraying
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Is Hastelloy too expensive for chemical corrosion applications? I’ve seen that the common anti-corrosion measure is a Teflon lining; currently, the company plans to carry out on-site repair using thermal spraying of Hastelloy. I’m not sure what the market situation is like
First, you need to understand what corrosive acids are. Metal corrosion resistance can be achieved in three ways: one is by improving thermodynamic stability, such as in nickel-based alloys that contain copper and molybdenum; the second is through metal passivation to form a dense oxide film, as in chromium alloys. Third, solid insoluble substances are formed. At room temperature and without particles, fluorinated linings have an advantage over Hastelloy.
Well, I’ve learned something. Materials are selected based on the operating conditions; however, thermal spraying can be used to apply coatings made of any alloy powder
This can be used for the anti-corrosion of shafts or pipes. The prospects for this market are very good. Or it can be used for the repair of slurry pump impellers. Currently, impeller repair relies on ceramic coatings; if one can apply any alloy through spraying, such a method has more market potential than the existing repair approaches.
Thank you. Our company is mainly engaged in the repair and spraying of papermaking equipment. Chemical companies have just started to get involved in this area
How can I get in touch upstairs? I would like to learn about thermal spraying of metals, especially the spraying of Hastelloy.
The market prospects are broad; the key lies in the film-forming properties and price. If the spraying area per unit is 50 m2, what would the approximate price be? If you have relevant materials, you can send them to my email: 13962096400@126.com
Are there any anti-erosion coating materials or processes?
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For resistance to erosion, an alloy coating with high wear resistance can be chosen