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Manufacturing Process of TMT Bar

<br>The complete form of TMT Bar / Rebar is thermomechanically treated bars. We all know that TMT bars are essential for all kinds of construction purposes, but knowing how they are made is also important.<br>

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Manufacturing Process of TMT Bar

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  1. Manufacturing Process of TMT Bar

  2. The complete form of TMT Bar / Rebar is thermomechanically treated bars. We all know that TMT bars are essential for all kinds of construction purposes, but knowing how they are made is also important. • The best quality TMT bars go through a series of processes that determine their strength and flexibility. The TMT Bar manufacturing process involves a series of processes such as lamination, quenching with water, heat treatment and cooling at various stages of manufacturing.

  3. Thermo Mechanical Treatment involves 3 essential steps which are: • Temper • self-tempered • Atmospheric cooling • The quality of TMT Bar depends on three main factors • Quality of raw materials • Quality rolling mill that provides the proper and uniform shape for all rebar • Quality system for quenching and tempering

  4. Iron ore to steel • The raw materials to make the TMT bar are iron ore, coal, dolomite. In this process, the raw materials are stacked, recovered and mixed in the required proportion. • The iron ore undergoes a beneficiation process to raise the iron substance. At this point, the metal fines are brought together to form a mass of granules and sintered to improve efficiency. The coal is changed to coke for future use. • Now the limestone accompanies the existing one and unfolds in the oven. The hot air that is supplied to the furnace through its nozzle results in the melting of the raw materials and comes out of a pool that is located at the bottom of the furnace. In this process, when the limestone melts, a liquid comes out due to its impurity known as slag. It is lighter in nature, which is why it floats on the surface of the molten metal.

  5. Primary steel fabrication • During the initial stage of the manufacture of primary steel through TMT Steel Bars Manufacturers in South India, in the oxygen furnace the combination of oxygen with carbon in the iron and removing the carbon dioxide is known as pretreatment. • The steel is then passed through the EAF (electric arc furnace) again to refine the composition of the steel. • Now the molten steel from EAF (Electric Arc Furnace) is transferred to a ladle and transferred to the continuous casting machine. Liquid steel exits the ladle into the foundry ladle and then into the water-cooled mold. • Solidification begins in the mold. Continuous billets leaving the CCM are sized according to the required length.

  6. Thermo Mechanical Treatment • Cooling: Once the hot rolled bars are released from the finished mill, they enter the water spray system known as the "Thermex System". The best quality tmt bar manufacturing process uses Thermex technology that cools the outer core rapidly and ensures the ductility of TMT rebar. Rapid cooling hardens the outer core of TMT rebar to an optimized depth for each section, forming a martensitic edge while the core remains hot and austenitic. • This cooling technology is known as Quenching. • Automatic tempering - Once the rebars are out of the Thermex cooling box, the core remains hot compared to the surface, allowing heat to flow from the core to the surface, causing the tempering of the outer layer of martensite, thus forming a structure called "temperate martensite". • Atmospheric Cooling - Once self-quenching is complete, the bars are prepared for atmospheric cooling. This is done in a cooling bed at normal temperature. In this step, the austenitic core is converted into a ferrite-pearlite structure. Therefore, the final structure consists of a strong outer layer with a ductile core. This process increases the tensile strength which makes it highly ductile and weldable.

  7. The best TMT bars are always made in integrated steel plants where, as explained in this topic, from raw material manufacturing to completion, everything is done under one roof. Pulkit TMT is a renowned TMT Steel Bars Manufacturers in Indi. Due to our continuous quality control and unmatched after-sales support, it is proud to be associated with the largest construction projects in India.

  8. About Us • Pulkit TMT is one of the largest TMT and CRS bars manufacturers who believes in Creating Everlasting Relationship. Pulkit Group's prime motive is to maintain high quality of products and sustain the environment. While maintaining the highest standards in quality, it gives utmost importance to the safety and security of the employees. • Website - https://pulkittmt.in/

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