BY-200 metal pickling agent

BY-200 treatment agent is a weak acid metal descaling agent, which is more suitable for chemical cleaning before steel coating. It has two functions of degreasing and descaling, and has a certain degree of anti-rust function. According to the severity of oil stain or the thickness of scale and rust stain, moderate temperature range can be selected to effectively remove oil stain and weight on steel surface. The rust can also form a trace phosphating film on the surface to provide sufficient time for rust prevention during the process operation. The cleaning agent is a phosphate-based degreasing treatment agent. The pickling and degreasing speed is fast and uniform, almost no corrosion to the equipment, no acid mist and odor, no pollution to the surrounding working environment, sewage treatment is relatively easy, and can be recycled after removing the ferrous iron. Its stimulation and damage to human skin is much lower than that of hydrochloric acid, sulfuric acid, nitric acid and other strong acids. If the water is not washed well, the acid remaining on the working surface does not affect the subsequent phosphating, even without water washing, and the workpiece is directly coated after drying. Does not affect the adhesion and appearance of the paint film. BY-200 treatment agent is especially suitable for easy effusion, tube cavity, inner tube, hemming, folding, crimping, spot welding parts and assemblies with gaps, no need to worry about the residual acid residue after rust removal Secondary corrosion. However, the BY-200 treatment agent is not suitable for the rust cleaning of some cast sand casting steel parts, nor for the rust cleaning before plating. The ideal operating temperature is 40-80 degrees, and the operation time is 5-20 minutes. .

Example 1, the use of room temperature, is suitable for the removal of light oil and moderate to below rust and at the same time complete the phosphating passivation process. Soak the 35% BY-200 treatment solution for 0.5-1 hour, remove the white dry one and spray or spray the plastic. It is suitable for manufacturers without space or investment in equipment.

Example 2, still used for degreasing, rusting, phosphating and passivating four-in-one agent, wiping the steel working surface or brushing the working surface at room temperature until the rust is removed, drying it by dry or dry cloth, spraying after the road . The process is suitable for phosphating and painting large workpieces without heavy rust and investment in fixed site and equipment.

Example 3, heating degreasing, free acidity should be greater than 100 points, temperature 50 ~ 65 ° C

Suitable for removing heavy rust parts:

BY-200 treatment agent aqueous solution treatment; water washing; (neutralization); water washing; phosphating; water washing; painting or rust prevention.

Technical indicators:

Appearance: colorless to yellow green liquid

Density: 1.4

Matching ratio: 25%-30%

Working fluid free acidity: >100 points

Operating temperature: 55-70 degrees

Processing time: 5-15 minutes

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