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　　After a series of processing, such as forming, welding and cooling, the welded steel pipe still needs to be sawed off. In this link, the length of the process ruler directly affects the quality and sales of the finished welded steel pipe, so the length of the ruler should be controlled within ± 5mm. Not only that, in actual operation, the staff must also operate in strict accordance with the following procedures:

　　It should be noted that if the API 5L Spiral Welded Steel Pipe unit needs to be stopped for a long time, the step-by-step power supply should be turned off first, and the saw blade motor stops running, which saves energy. At the same time, welded steel pipe is necessary to check the quality of the working pulse of the speed photoelectric code frequently to prevent it from hitting the encoder or immersing it in water. According to different specifications of welded pipe, adjust the position and grinding shape of flat head cutter in time. The end face of welded steel pipe after flat head shall be smooth and flat to meet the process requirements.

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