Preventing transverse cracking measures of cold drawn pipes (三)

- Jun 18, 2020-

Avoid rapid water cooling of capillary tubes and cold steel rolling

Control and coordinate the production rhythm, so that the barren tube stays on the stage shortly before rolling. Ensure that the final rolling temperature of the steel pipe is not lower than 850 ° C, to ensure that the internal structure of the steel pipe is uniform, reduce residual stress, moderate cooling water pressure, prevent water leakage, and avoid local rapid cooling of the steel pipe, causing local cold brittleness.