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Posted on April 1, 2006 by Tyron Tollett | Posted under Consumer Electronics
6 Steps Manufactures Follow in Stainless Steel Pickling Passivation Processes
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To understand the process entirely, you must look at each of the individual steps to the stainless steel pickling passivation combination process. After the heating process of the item, there will be a layer that is chromium washed out area that has naturally formed on the surface which can be removed with the processes. The processes will also leave the item more corrosion resistant. This is the type of process that a manufacturer will go through when they are putting the finishing touches on a stainless steel item: 1 - They will need to make sure the item is clean. This process will not remove dirt and other surface blemishes, so it will be important that they clean the surface by hand first. One of the best solutions to use in cleaning stainless steel would be an alkaline cleaner or detergent. 2 - They will then ready their pickling solution. This will be a mixture of nitric and hydrofluoric acids. If they are using a liquid, the item will need to be dipped in the mixture. If they are using it specifically for a welded section of an item, many manufacturers will choose to use a nitric and hydrofluoric paste and smear to paste over this section. 3 - After the appropriate amount of time, they will remove the item from the liquid acid bath, or remove the paste from the item. 4 - In order to produce a film over the freshly formed item, the passivation process is performed. The manufacturer will prepare an acid bath including nitric acid. 5 -Again, the acid will either be in the form or a liquid or a paste. The item will either be dipped into the liquid and left the soak for a short while, or a paste will be spread on the item. 6 - After a short period, the item will be cleared of the acid bath or the acidic paste, and it will be polished and buffed to a shine. Because manufacturers are using very dangerous acids in their stainless steel pickling passivation combination processes, they know the precautions to take when dealing with these baths. For example, hydrofluoric acid is so powerful, it can dissolve glass. People who handle this type of acid need to be very careful when they are using it. Professionals are working at manufacturing companies and they know the dangers of these types of acid baths and are well aware of the specific steps to take when performing these processes on stainless steel items. About The Author: Tyron is a professional writer and writes about various different subjects. One of his favourite subject is stainless steel. Visit the website at http://www.stainless-steel-now.com to get more information about various different stainless steel products available in the market. |
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