1、在要求的力矩范围内扔存在漏气现象。2、超力矩上限会造成密封圈变形，

1. There is air leakage when throwing within the required torque range. <br>2. Exceeding the upper limit of the torque will cause the seal ring to deform and cause air leakage (because the seal ring is inside the seal end face, the assembly process cannot identify whether it is deformed). <br>3. When the black air tank is sprayed, there will be primer and paint slag on the thread (the air tank spray painting process cannot be avoided) <br>4. The aluminum air tank joint has rough threads and cannot guarantee air tightness

1, in the required torque range to throw the phenomenon of air leakage.<br>2, the upper limit of the moment will cause the seal ring deformation, produce leakage (because the seal ring inside the sealing end face, the assembly process can not recognize whether the deformation).<br>3, black air reservoir paint will be in the thread at the presence of primer and paint slag phenomenon, (gas cylinder painting process can not be avoided)<br>4, aluminum gas cylinder joint thread rough, can not guarantee air tightness.

1. There is air leakage in the required torque range.<br>2. If the upper limit of torque is exceeded, the sealing ring will deform and cause air leakage (as the sealing ring is inside the seal face, it is impossible to identify whether it is deformed during assembly).<br>3. When painting black air reservoir, there will be primer and paint residue on the thread (the painting process of air reservoir cannot be avoided)<br>4. Aluminum air reservoir joint thread is rough, can not guarantee air tightness<br>