The process of a pipe production is the following: a round cast workpiece is put onto a hot rolling line where it is cut, heated, stitched and rolled till a pipe of necessary size is ready.
Pipe manufacturing process consists of the following stages: hot rolling, where blank gets cut, heated and rolled till it becomes of the needed size and form.
管道的制作流程由以下几步组成：热轧，在这一步坯料被切割、加热、轧制直到尺寸和形状达到要求为止。
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The structure and installation of the pipe nozzles have important effect on the cooling process of hotrolled strip and plate.