TMT bars are considered one of the crucial components to make reinforced cement concrete. These bars are made using the Thermo Mechanical Treatment process by the manufacturers. Due to this process, TMT bars develop an inner core having a high temperature and the outer surface having a cooler temperature. This temperature gradient provides more elongation factors and flexibility to the bars. Thus, the Thermo Mechanical Treatment process helps the bars have higher durability and ductility when compared to regular, conventional steel bars.
Before you decide to procure them from the leading Tata Tiscon dealers and other reputed manufacturers, you should learn about the different stages involved in the manufacturing of TMT bars.
These are the Steps Involved in the Making of TMT Bars
The quality of bars manufactured can depend on many factors such as the quality of material used, the rolling mill used for shaping the material, the machine or equipment used for quenching, and the tempering process.
Raw Materials Used
The manufacturing process begins with the sourcing of the raw materials necessary for the entire process. Coal, iron ore, dolomite, and limestone are the key ingredients required for the production of TMT bars. After receiving all the raw materials, they are sorted and then processed using an electric arc furnace, a basic oxygen furnace, or the modern induction furnace. The ratio of the raw materials added is adjusted to develop a certain composition of steel. Based on the type of steel required for the different grades of TMT bars, certain chemicals can be added or removed from the metal. You can find the different TMT bar grades at the Tata Tiscon dealers.
Primary And Secondary Process in Steel-Making
After the iron is converted into molten steel, the next step is to make the steel billets. The molten steel is picked up with a ladle and is then transferred into a continuous casting process. In this casting process, the molten steel is poured into a mold which changes the shape of the metal into a long, rectangular form. These are called steel billets. After the steel billet is created, it is passed through the rolling mill where the thickness and length of steel are changed to meet the requirements of the different sizes of TMT bars provided by the TMT bar suppliers.
Quenching
After the hot rolled steel bar leaves the final mill stand, it is passed through a water quenching system. Here, the water is sprayed directly onto the hot rebars which causes the surface to cool down and harden rapidly. It creates a temperature gradient in the rebar where its outer surface becomes hard while the inner core remains hot and malleable. Learning about this will help you choose more suitable bars for your construction project at the Tata Tiscon dealers.
Tempering
After the steel bars have passed through the quenching system, their inner core remains hot and continues to transmit heat to the surface. This gradual flow of heat leads to the tempering of the outer martensitic layer into a structure called tempered martensite. This process is also crucial as it helps the bars available at the TMT bar suppliers develop more strength. You can procure and use the best TMT bars in Jharkhand that are made using this process to add more strength to your building structures.
Air-Cooling
It is the last stage of the Thermo Mechanical Treatment process. After tempering, the TMT bars are passed through special cooling beds which allows the entire structure to cool down to room temperature. Finally, the process is completed and the bars that are created from this can easily be considered the best TMT bars in Jharkhand.
This is the complete manufacturing process of TMT bars. Having an idea about this will help you procure better bars for your construction project.
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