Heat Treatment Lines
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Heat Treatment Lines For Hot Formed Materials

TENOVA LOI THERMPROCESS Tenova LOI Thermprocess is one of the leading companies in supplying industrial furnace systems for the heat treatment of metals. Worldwide clients from the steel, aluminium and automotive industries rely on the technical solution competence and thousands of references backed by a history of over 100 years representing the entire know-how in the field of material properties and secondary metallurgy. Tenova LOI Thermprocess is a global partner represented in all major markets throughout the world. Being a driver in the transformation of the metals industry towards...

Tenova and LOI – Since 1957 Leaders in Reheating Furnace Technology CUSTOM-ENGINEERED REHEATING FURNACES FOR C STEEL, STAINLESS STEEL OR SILICON STEEL: the long histories of Italimpianti • Roller Hearth Furnaces for slabs, of reference plants in the following • Walking Hearth Furnaces, Tenova Italimpianti are the world • Pusher-Type Furnaces slabs, billets and forgings Chamber/Bogie Hearth Furnaces and LOI and confirmed by hundreds fields: leaders in industrial furnaces for the • Walking Beam Furnaces for well as for forgings. The companies’ Rotary Hearth Furnaces and for blooms or forgings...

ADVANCED HEAT TREATMENT FOR PLATES & FORGINGS New material grades and We implement projects in these • achieve homogenous increasingly stringent market trend towards leaner steel constructions. Tenova LOI Thermprocess is the world leader in industrial furnaces for the heat treatment of plates and forgings. industries throughout the world. temperature distribution mathematically optimized heating • reduce residual stress and • precisely improve material • ensure defined surface quality. and cooling systems that changes defined in TTT diagrams Many years of experience in the construction of...

Quenching and Tempering of Heavy Plates GENERAL FEATURES Everything from a single source design, automation, mathematically Numerous references been the leading company in this field since the 1990s with more than 30 quench facilities and more than 50 furnace installations throughout the world. Plates can be produced with widths up to 4.9 m, thicknesses from 2 mm up to more than Comprehensive process know-how, models, scheduling & installation as well as modernization, maintenance & service. Our Q&T technology is precisely tailored to customers’ growing requirements for process security,...

Roller Hearth Furnaces for Normalizing (NF) NORMALIZING FURNACES Tenova LOI furnaces may be heated into the furnace, or indirectly by Our normalising furnaces are Q&T lines in view of the rising demand for normalizing. influence the mechanical properties of carbon steel. For heavy plate normalizing, the process involves either by open burners firing directly radiant tubes. Our indirectly heated Roller Hearth Normalizing Furnaces (NF) provide a protective atmosphere to ensure the best possible surface quality. The use of nitrogen prevents scale formation on the steel heating to normalizing...

Stationary and Continuous Quenches  High-throughput continuous quench for heavy plates. The quenching facility is the key component of a LOI heavy plate Q&T line. Tenova LOI Thermprocess offers stationary (throughputs of up to 10 t/h) and Continuous Quench facilities (up to more than 100 t/h). A Stationary Quench can handle one plate at a time. This extremely short type of Quench can be combined for example with LOI oscillating Roller Hearth Furnaces. The key advantages of a Continous Quench are higher throughput, higher reproducibility and higher cooling uniformity. The mechanical...

With its iQuench® technology, Tenova LOI Thermprocess offers a wide variety of quenching modes and a full range of heat transfer rates combined with a unique, powerful mathematical quenching model in an overall automation concept. A patented system of slit, full and flat stream nozzles as well as full cone nozzles is arranged in a complex configuration in successive cooling sections. They are precisely controlled in plate to guarantee the best possible during treatment and model-based pressure and distance from the over a wide range of thicknesses. iQuench® technology can reach dependence...

LOI PROPRIETARY SLIT NOZZLE SYSTEM The patented LOI system of slit nozzles, arranged in a complex configuration in succeeding cooling sections results in homogenous flow rates over the entire width. The combination of precisely designed equipment with an intelligent model makes iQuench® a unique and powerful masterpiece of engineering. The cooling system parameters  are dynamically adapted during treatment to guarantee not only excellent mechanical properties but also high flatness even of thin plates. Standard market slit nozzle LOI’s optimized slit nozz

Roller Hearth Furnaces for Tempering (TF) HIGH CONVECTION TECHNOLOGY (HCT) TEMPERING FURNACES The tempering of carbon steel is the final step in the heat treatment process and influences the final material properties within a wide range. The precision of temperature control is the most important issue because there is only a small step between success and failure. Tenova LOI Thermprocess supplies Roller Hearth Tempering Furnaces (TF) with advanced heating technology for short heating time to tempering temperature and excellent The HCT consists of open-, fired burners and horizontal...

Rotary Hearth Furnaces ROTARY HEARTH FURNACES Tenova LOI Thermprocess is the world’s leading supplier of Rotary Hearth Furnaces for a variety of process applications and product types (even up to 67 m in diameter). Computerized fluid dynamic simulation and lab tests are used for the effective design of waste gas systems inside the furnace for special applications including the reheating of forgings. � Tenova LOI Thermprocess Rotary Hearth Furnace with zone separation for gas carburizing of gear parts and Q&T steels