There are many kinds of micro DC motor. Today we talk about the problem of rusting, mainly for this type of micro DC motor composed of gearbox and DC motor. A friend who often uses this motor knows that the surface of the gearbox will rust more or less after the motor has been used for a long time. Generally, it is installed inside the product. If it is not disassembled, it is OK. If it is installed outside, we will talk about the problem of rust. We don't know how to solve the problem. We can provide some ways:

Micro DC reduction motor gearbox

1. When washing the gear box of the micro DC motor, be sure to clean it.

2. The best surface adjustment is oxalic acid with concentration of 1 ~ 2.

3. Sulfuric acid can also be used for pickling. The pickling time should not be too long. Phosphoric acid is the best choice.

4. After pickling, it is best to neutralize with 1 ~ 2 sodium carbonate.

5. The upper limit of acidity shall be taken for zinc phosphating treatment, and the impregnation treatment concentration: TA: above 35. FA: 1.2ac: 8 (20cc fermentation tube).

6. Weak alkali degreasing should be selected for degreasing without flake alkali, tal should be controlled at about 15 point, and pH should not exceed 13.

For the prevention of micro DC motor gearbox rust knowledge, after you master, you can learn more about the micro DC motor some related problems, in the micro motor common problems, you can find and learn more knowledge, if you have other questions, we did not mention, you can call us.