1. Leakage at welds:

The first problem that causes the problem is the poor quality, the existence of off-weld, weld with pinholes, defects and other issues. The problem of leakage, first of all to find out the problem, welding treatment, control the leakage will be treated after the surface clean up.

2. Leakage of seals:

Seals in the connection out of the poor treatment, due to the installation of rolling, the interface can not be pressed, can not play a sealing role, is still leaking oil. The material can be bonded with the leakage proof material, or the metal shell can be bonded to achieve the purpose of leakage control.

3. Leakage at flange joint:

This is the uneven surface of the flange, and the loosening of the fastening bolts will also cause leakage. Firstly, the loose bolts are tightened, then the flange is sealed, and the bolts which may leak are also treated to achieve the goal of complete treatment. Tightening of loose bolts must be carried out strictly according to the operation process.

4. Leakage of bolts or pipe threads:

Oil-immersed transformer will produce leakage after sealing for a period of time, because of rough processing, poor sealing caused. Polymer material can be used to seal the bolt, another method is to screw the bolt out, after the surface coating material for tightening, can achieve the purpose of treatment.

5. Leakage of iron castings:

It is caused by cracks in iron castings that can be filled with cracks, and lead wires are inserted into the leak points or riveted to death by hand hammers. Then use acetone to clean the leakage point and seal it with material.

6. Radiator leakage:

The leakage of the radiator is due to the tension of the outer wall of the tube, which is caused by residual stress due to pressure inside the wall. Close the upper and lower plate valves (butterfly valves) of the radiator to isolate the oil in the radiator from the oil in the tank and reduce pressure and leakage. Proper surface treatment is carried out after determining the leakage area, and then sealed with Fushi blue material.

7. Leakage of porcelain bottles and glass oil standards:

It is caused by improper installation or sealing failure. Polymer composites can be used to bond metals, ceramics, glass and other materials to prevent leakage.