Friday 27 July 2018

Primary Parameters Of Rolling Process In A Continuous Rolling Mill

Rolling mills include a series of shaping and finishing operations, to give a final shape and dimension to the intermediate steel products. Basically, the metal slabs are heated in reheating furnaces in what is called a rolling mill process, to give a final shape by employing hot- or cold-rolling or finishing mills method. In fact, some basic products like reinforcement bars, steel plates only require hot-rolling, while some others may require hot-and cold-rolling. These products include steel for cars and white-goods.
Mechanical forces for cold rolling will produce a massive amount of force and energy needs, while hot rolling occurs more rapidly with less force; Be that as it may, there are considerable energy costs to heat the metal to near eutectic temperatures. The statistics show that in large integrated steel plants, the hot roll rolling process is the third largest consumer of energy after iron and steel making.
A typical long product continuous rolling mill is used for reheating, rolling and cooling. The main purpose of the rolling phase is to reduce the cross section of the incoming stock and to produce the planned section profile, the mechanical properties, and the product of the micro structure.

Primary parameters in the three phases of mill processing
Reheating - The input content, more often than not billet is heated in the reheating furnace to the rolling temperature. The main parameters are the heating rate, the time of heating, and temperature of reheating.
Rolling - The main parameters for rolling in the roughing, intermediate, and finishing group of stands in the rolling mill are temperature, the percentage of reduction in area, inter-pass time and strain rate.
Cooling - The main parameters after finish rolling during the rolled product, starting from the cooling rate, and the final temperature.
Conclusion
To make the conclusion, the rolling process is a continuous rolling mill that has a wide application in the construction and automotive industries. The process provides a high production rate, surface finish, as well as grain structure, this is a ideal suitable metal forming process.

No comments:

Post a Comment