1, raw meal is mainly used to seal the gap of threaded connection, and how many turns is appropriate cannot be specified in advance. Because of the tolerance bandwidth of threaded connection, the loose thread must be wound several times, and vice versa. According to experience, feelings can be sealed.
2. The raw material belt is directional and should be wound along the direction of the line. After fastening, the adhesive tape should be squeezed into the thread gap. If the raw material belt is found to be squeezed, it must be removed and rewound.