Mill Stands - Properly heated raw material first enters in first stand of the mill and is reduced by its thickness. At second stand it is further reduced to desired size. At remaining stands feeded material is given the desired shape and finally at the last stand desired finishing is provided to the material.
Quenching – Once the hot rolled bar releases from finished mill it enters to the water spray system that is known as ‘Thermex System’. The best quality tmt bars manufacturing process uses Thermex Technology that cool down the outer core rapidly and ensure the ductility of TMT Rebars. Rapid cooling hardens the outer core of the TMT Rebars to a depth optimized for each section, forming a martensitic rim while the core remains hot & Austenitic. This cooling technology is known as Quenching.
Self Tempering – Once the rebar is out of the Thermex Quenching box, the core remains hot compared to the surface allowing heat to flow from the core to the surface causing Tempering of the outer Martensite layer thus forming a structure called ‘Tempered Martensite’.
Cooling bed - Once the self temperingis over the bars get ready for atmospheric cooling. This is done on cooling bed on normal temperature. In this step the austenitic core turns as ferrite-pearlite structure. Thus the final structure consists of strong outer layer with ductile core. This process increases the tensile strength that makes it highly ductile.
Cold shearing - Shearing, also known as die cutting, is a process that cuts rebars without the formation of chips or the use of burning or melting.At shearing machine we cut the bars in required length.