Necessary raw materials for square tube production:

First of all, the straightness of the square tube must meet the piercing request, which will affect the consumption rhythm and adversely affect the production and quality of the local square tube. Secondly, the billet cutting slope of square tube will also have some adverse effects on the piercing process. The billet cutting of the square tube is too large or the ends are not uniform, which will consume the necessary raw materials of the square tube. At the same time, it will also affect the extension of the heating time of the square tube in the circular furnace. The quality of the square tube billet will directly affect the production and quality of the square tube.

In order to prevent the influence of the quality of square tube blank on the quality of square tube production, square tube blank is a necessary raw material for square tube consumption. When the bending degree exceeds the specification requirements, the square tube blank is easy to cause the piercing mill to jam, which is easy to form uneven wall thickness of perforated blank. It is necessary to strictly implement the acceptance system of square tube blank and the sawing system of square tube blank. It is necessary to timely inspect the necessary raw materials of the consumption square tube with the incoming materials and deal with the problems found in a timely manner, which will not only affect the normal perforation structure adjustment of the piercer, but also affect the dimensional accuracy of the entire square tube.