Hot Roll Forming Process

Hot - Roll Forming Process
Hot - Roll Forming process that occurs above Metalworking recrystallization. The temperature of the material. After the grain during processing disfigure them. recrystallize. Equiaxed microstructure, which treat and prevent metal from work hardening. Usually a large piece of metal substrates such as semi-finished products such as cast slabs, blooms, billets, and if these products come from the continuous casting products are often directly in plant foods at the proper roll. In smaller operations starting material at room temperature and must be heated. This is done in the pond water or gas oil used as fuel for its work for large and small pieces of heat induction is used. These materials are able to work the temperature must be checked to ensure that it remains above the temperature recrystallization. To secure the success factor is the temperature above the temperature recrystallization; This is usually 5-10 ° C (122-212 ° F) over temperature. recrystallization. If the temperature drops below this temperature the material must be heated again before it rolled more.

Hot - Roll Forming Process

Hot Roll Forming steel sheet metal in general had little in the way the mechanical properties and deformation of the force that they left. However, in some cases, non-metallic inclusions are giving directions, and some pieces of less than 20 mm (0.79 in) thick, often with some features of a trend. In addition, the cooling is not much wear Yun New forms will cause a residual force, which often occur in the shapes with irregular cross-section such as I - H - beam and the beam, while the finished product quality. Good surface is covered in a mill oxide that forms at high temperatures. It is usually removed or preserved through the process of cleaning the plane, which shows a plane [4] dimensional tolerances are usually 2 to 5% of its overall size.