How to remove rust from the inner surface of the tank
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There are currently two new tanks. Due to long-term use, there is a layer of floating rust on the inner surface. Please tell me.: How to remove floating rust is the easiest and most effective method. How much does it cost per square meter?
If you install oil directly after removing the floating rust, it is best to use an electric wire brush to remove the floating rust. It is quick, clean and not expensive.； If anti-corrosion is required after rust removal, the following two methods can be used: 1 It is the sandblasting rust removal mentioned above. Because it is inside the tank, sandblasting is more troublesome and the cost will be high, but the effect will be very good. ； 2. Use an electric sand disc to remove rust and then apply anti-corrosion coating. The cost is lower than sand blasting, and the anti-corrosion effect is better than using wire brushing. Under normal circumstances, this should be done more often. The specific cost needs to take into account the size of the tank, its location, and various other requirements.
It is best to use sandblasting, but you can negotiate with the construction unit to charge for power rust removal.
common practice: Wire brush electric grinding to remove rust. If the tank is large, consider sandblasting to remove rust.
Just use power tools to remove rust and reach St3 level, which saves labor and is relatively low cost!
How much does it cost per square meter to remove rust from power tools?
Sandblasting is the most direct and effective. If you consider the cost, angle grinder can also be used, but the efficiency is low.
Pickling costs only 10 yuan per square meter
Does the rust removal you are talking about mean complete rust removal? Although sandblasting is faster, it will rust again after rust removal. Spraying technology may be very practical.
Just power rust removal, ST3 level, even without anti-corrosion, it only costs 25 yuan per square meter.
It depends on what your purpose is for rust removal. If it is the preliminary preparation for anti-corrosion, pickling is not feasible. Only manual electric rust removal and sandblasting are feasible. For rust removal in the tank, sandblasting is obviously better.
This is related to the process parameters of the medium and the anti-corrosion coating you choose. Different anti-corrosion coatings are used for different medium parameters. This has different requirements for rust removal on the vessel wall.