OY-49 Combo degreasing and rust remover OY-49 steel rust remover is an efficient rust descaling agent, it has a long life compared with hydrochloric acid, no acid mist, micro-oil, non-hanging gray, corrosion small, hydrophilic and other advantages, comparing the cost of photogenic, and no higher than the cost of the traditional process, because life OY-49 is almost 15-20 times more than the life of hydrochloric acid. And if maintenance is good, do not like hydrochloric acid as updated cumbersome and large quantities of emissions caused by environmental pollution. OY-49 Combo degreasing descaling agent suitable for black oxide, phosphate pre-treatment areas, spraying, plating. Currently, the sulfuric acid, hydrochloric acid is easy to produce drugs, the procurement process more complicated, and therefore, the use of my company's OY-49-type steel rust remover is the best option. OY-49A and B for the basic model, based mainly in rust, OY-49C rust removal effects are very good, and longer life. First, rust-free steel pickling process parameters: Process parameters of the project scope Appearance Clear liquid solutions 1 OY-49 liquid or purified water plus 50% for heavy rust; plus 50-95% of pure water for ordinary rust; Scheme 2 for the heavy rust or greater, then you can use the following ingredients: 45-60% water, 10-15% concentrated sulfuric acid, 20-30% of concentrated hydrochloric acid, 10% of OY-49C degreasing rust combo agents, according to the above ratio by volume, particularly stubborn scale and corrosion can add about 5% of nitric acid in the above formulation. Temperature at room temperature -60 ℃ PH ≥1 time 1-15min dipping method, spray heated Teflon tube material (under normal circumstances without heating) clearance groove frequency 30 days / times two, bath management: 1. OY-49 combo steel rust remover, rust, the stronger the higher the concentration, but instead the shorter life expectancy, it is recommended to use a concentration of 1: 1-4 (tap water), temperature 30-40 ℃, this process Conditions will not be lowered efficiency, but also to extend the life of rust was considerable benefits. 2. When the next addition to the rust capability can be added, as appropriate, 10% by volume of the bath OY-49 Combo degreasing and rust remover for maintenance, so repeatedly, do not add water, if taken away a lot of the bath can be recycled water to add. 3. When adding a new OY-49 Combo degreasing and rust remover, clear action from time to time, it is recommended for slots. 4. The solution was allowed to stand and rust remover not in use, sealed with a lid. 5. Replacement solution is recommended for 3-6 months / times. Third, the product packaging: 25 kg / plastic barrel.