TMT Bar/Rebar is an abbreviation for Thermo Mechanically Treated bars. We all know that TMT Bars are necessary for all types of construction, but it is also important to understand how they are made.
Highest Quality TMT bars are subjected to a series of processes that determine their strength and flexibility. TMT Bar manufacturing involves a number of processes such as rolling, water quenching, heat treatment, and cooling at various stages of production.
The Thermo Mechanical Treatment consists of three essential steps:
- Tempering Self-Quenching
- Cooling of the atmosphere
- TMT Bar quality is determined by three major factors.
TMT Bar quality is determined by three major factors.
- Raw material quality
- Quality rolling mill that produces a uniform and proper rebar shapes
- Quenching and tempering quality control system
TMT bars are an essential component of all types of construction. Did you know what makes TMT bars so flexible and ductile that they are considered an essential part of construction? To understand this, we must first understand how the best quality TMT bars are manufactured in Jalna.
Iron Ore to Steel
TMT bars in Jalna are made from iron ore, coal, and dolomite as raw materials. In this process, raw materials are piled, recovered, and mixed in the required proportions.
To increase the iron content, iron ore is beneficiated. At this point, metal fines are gathered to form a mass of pellets and sinter to improve efficiency. The coal is turned into coke and stored for later use. New limestone is currently being deployed to the furnace in addition to the already present limestone. Hot air is supplied to the furnace via its nozzle, melting the raw materials and erupting from a pool at the furnace’s bottom. When limestone molts, a liquid known as slag emerges as a result of its impurity. Because slag is lighter in nature, it floats on the surface of the molten metal.
Primary Steel Production
Pre-treatment is the process of combining oxygen with carbon in the iron in an oxygen furnace to eliminate carbon dioxide during the initial stage of primary steel production. The steel is then passed through the EAF (Electric Arc Furnace) once more to refine its composition.
Molten steel is now transferred from the EAF (Electric Arc Furnace) to a ladle and then to the continuous casting machine. The liquid steel flows from the ladle into the casting ladle, which is then placed in a water-cooled mold. The process of solidification begins in the mold. The length of the continuous billets coming out of the CCM is determined by the length required.
Thermo Mechanical Treatment
This is the final manufacturing process for TMT steel rebars.
Rolling – The heated billet passes through three stands in a reduction mill: roughing, intermediate, and finishing, where the rolling mill reduces the thickness and lengthens the overall length.
Quenching – When the hot rolled bar exits the final finishing rolling stand, it is immediately passed through a water quenching system, where water sprays cause the rebars’ surfaces to cool and harden quickly. While the surface hardens as a result of the rapid cooling, the inner core remains hot and malleable.
Self-Tempering – After passing through the quenching system, the core remains hot and continues to transfer heat to the outer surface; this is known as self-tempering, and it transforms the outer layer into Tempered Martensite.
Atmospheric cooling – Finally, the steel bars are placed on a cooling bed and allowed to cool naturally. This allows the soft, inner austenitic core to be transformed into a ferrite-pearlite structure. As a result, the finished product has a tough hard order layer and a ductile core.
Conclusion:
OMSAIRAM STEELS & ALLOYS PVT LTD is the TMT bar manufacturer in Jalna as it provides a free testing facility where you can check the quality of the bars before purchasing them.
Omsairam Steels & Alloys Pvt.Ltd is one of the few reputable companies that manufacture high-quality reinforcement steel using world-renowned QST (TMT) technology and the purest raw materials. Omsairam Steels & Alloys Pvt. Ltd.’s Rolling division adopted cutting-edge technologies, a high-speed rolling mill, a loop scanner, and twin channels to ensure and foster trust for all quality-related metrics. For more details on the best TMT Bars in Jalna
Visit us on our website – www.umasteels.com
