Heating requirements for spiral steel pipes

Before the steel is hot rolled, heating the raw material not only improves the plasticity of the metal, reduces the deformation force, but also facilitates rolling. In addition, during the heating process of steel, some structural defects and stress caused by Tao ingots can also be eliminated for steel ingots. Spiral steel pipe manufacturers should put forward requirements for steel heating:

1. The heating of the spiral steel pipe is uniform in temperature on the cross-section and length direction of the billet;
2. The steel temperature should meet the rolling process requirements;
3. The heating furnace of the spiral steel pipe has fewer accidents and longer service life;
4. The heating furnace of spiral steel pipe has good technical and economic indicators;
5. Reduce metal oxidation and decarburization, prevent overheating and overburning;