Chemical Solutions
Scale Removal
Carbon scale from heat treating, welding and annealing can cause costly rejects if not completely removed in the pretreatment process. Critical steps are as follows:
- Soak Cleaning – Strong alkaline cleaner necessary to remove baked on oils
- Electro-Cleaning – High alkalinity necessary to carry current & smut reducers to remove dark residue
- Alkaline De-Scaler – Product like Metalline D-Scale L-2005 will oxidize carbon scale and make it easy to remove in the acid pickle
- Acid Pickle – High concentration of hydrochloric acid with a detergent acid additive
- Acid Additive – Product like Metalline Ambienol C will inhibit iron build-up, extend acid life, improve carbon scale removal and reduce fuming
Categories: Chemical Solutions, Specialty Products
Description
Carbon scale could be a problem if:
- You are having to run parts through a second time to get them to come out right
- You have to extend your acid pickle time to remove dark stains on the parts
- You have to pre-clean parts to eliminate rejects
- You have to increase the concentration of your acid pickle each time you run a certain part
Scale removing chemistries, additives and strategies are available to help reduce your cleaning time and your reject rate.
