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Inductive heating har many applications for roads and bridges

General industry 

Heating processes are common in industrial manufacturing. Induction heating is often the preferred choice. 

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Induction heating explained

Introduction

Efficient and reliable production is critical for industries all over the world. Unplanned downtime or unexpected quality defects can quickly turn expected gains into massive losses. As induction technology is accurate, controllable, fast and repeatable, more and more industries choose induction heating over other heating alternatives such as gas. In addition, induction heating does not emit carbon dioxide and eliminates naked flames. 

  • Mobile induction heating for general tasks
  • Stationary induction heating for specific tasks
Inductin heating in the railway, shipbuilding and aviation industries

Aviation

Product quality and process consistency are obviously crucial to the aviation industry. That is why the accurate, repeatable and contact-free induction heating has become so popular with aircraft manufacturers, airlines and their suppliers.

Typical applications:

  • Induction brazing of fan blades and blades for casings
  • Induction brazing of various parts for fuel systems, e.g. fuel connections
  • Induction brazing of various components in hydraulic systems
  • Postheating of welding repairs such as in casings for jet engines 

Railway

The unrivalled accuracy, control and efficiency of induction heating makes it ideal for key tasks in the manufacture and maintenance of rolling stock and rails.

Typical applications:

  • Shrink-fitting of lock rings, ball bearings, brake pad centre hubs, steel tyres on rims, wheels on shafts, loctite connections,
  • Pre-heating of rails
  • Hardening of rails and hubs
  • Welding of rails in field

Oil and gas

ENRX has been helping oil and gas service companies since the mid 1990s.

Typical applications: 

  • Post Weld Heat Treatment
  • Pre Weld Heat Treatment
  • Pre-heating before coating
  • Tube bending
  • Soldering
  • Shrink fitting of bolts and nuts, steam valves, bearings, hubs, gears, sprockets, impellers, ompressors and retaining rings
  • Removal of rubber coatings and glued parts
  • Hardening of spray coatings
  • Straightening

Shipbuilding

ENRX provide induction heating equipment that is used in ship yards around the world for the construction, repair and maintenance of all kinds of vessels.

Typical applications are: 

  • Deck and bulkhead straightening during construction
  • Straight welding of beams in double hulls
  • Paint and coating removal
  • Brazing of copper components
  • Hardening of large gears, winches and chains
  • Heat treatment of shafts
  • Pre-heating of valves prior to welding

Metal and foundry

Our very first induction equipment items were designed and built for the metal and foundry industry. Over the past five decades, we have led the way in developing time and money saving solutions for this sector.

Typical applications: 

  • Forging of billet heaters and horizontal/vertical bar end heaters 
  • Melting of metal and glass 
  • Plasma heating of titanium and silicon 

Wire and cable

The unrivalled accuracy, control and efficiency of induction heating makes it ideal for many key tasks in the manufacture and processing of wire and cable products.

Typical applications:

  • Drying post cleaning or removing water or solvent from coatings
  • Curing of liquid or powder based coatings. Providing a superior bond strength and surface finish
  • Diffusion of metallic coating
  • Pre heating for extrusion of polymer and metallic coatings
  • Heat treatment including: stress relieving, tempering, annealing, bright annealing, hardening, patenting etc.
  • Pre-heating for hot-forming or forging, especially important for specification alloys 

Image gallery

  • The induction coating removal system is a game-changer that facilitates removal of coatings from carbon steel, structural steel and other metal substrates.

    The coating removal system is a game-changer that facilitates removal of coatings from carbon steel, structural steel and other metal substrates.

  • Induction coating removal outperforms traditional methods. No blast media. Safer, healthier working conditions. Easy clean-up of paint and coating debris. Up to 90% time-saving.

    Induction coating removal outperforms traditional methods. No blast media. Safer, healthier working conditions. Easy clean-up of paint and coating debris. Up to 90% time-saving.

  • ENRX has worked closely with customers across the globe to develop the induction coating removal system.

    ENRX has worked closely with customers across the globe to develop the coating removal system.

  • ENRX induction coating removal system is compact, light-weight and easy to move around worksites.

    The coating removal system is compact, light-weight and easy to move around worksites.

  • Much easier clean-up. The coating material peels off in flakes rather tan being pulverised.

    Much easier clean-up. The coating material peels off in flakes rather tan being pulverised.

  • Induction-brazing-of-sofa-bars

    Induction brazing steel support bars for sofas.

  • Induction-braziong-of-a-microphone

    Induction brazing of a microphone.

  • Automated, high-output solutions for bar end and partial heating.

    Automated, high-output solutions for bar end and partial heating.

  • An ENRX CHV vertical heater. Capable of heating any type of profile, including preformed components, the CHV supports manual and robot loading.

    An ENRX CHV vertical heater. Capable of heating any type of profile, including preformed components, the CHV supports manual and robot loading.

  • Induction forging uses induction to heat metal parts before they are shaped or ‘deformed’ by presses or hammers.

    A heated workpiece being ejected from a CBB horizontal heater. The CBB ejects parts in a single location – a major benefit for operators.

  • Designing unique, customised bar end solutions is an ENRX strength. Our technical capabilities let us meet virtually any customer-specific requirements.

    Designing unique, customised bar end solutions is an ENRX strength. Our technical capabilities let us meet virtually any customer-specific requirements.

  • ENRX bar end and partial heaters are field-proven systems used by many manufacturers around the world. Each system is backed by the resources and service capabilities of ENRX.

    ENRX bar end and partial heaters are field-proven systems used by many manufacturers around the world. Each system is backed by the resources and service capabilities of ENRX.

  • A new 1.200 kilo-capacity single-axis tilting furnace being installed at a bearing manufacturer’s facility.

    A new 1.200 kilo-capacity single-axis tilting furnace being installed at a bearing manufacturer’s facility.

  • An ENRX induction furnace at work. This graphite crucible contains molten brass.

    An ENRX induction furnace at work. This graphite crucible contains molten brass.

  • FIB is our range of single-axis tilting furnaces. The FIB coreless (shown here) features an innovative coil design that maximises efficiency.

    FIB is our range of single-axis tilting furnaces. The FIB coreless (shown here) features an innovative coil design that maximises efficiency.

  • ENRX furnaces maximise productivity and product quality. For example, the dedicated crucibles in moving coil furnaces eliminate inter-alloy contamination.

    ENRX furnaces maximise productivity and product quality. For example, the dedicated crucibles in moving coil furnaces eliminate inter-alloy contamination.

  • Induction melting is a process where metal is melted into liquid form in an induction furnace’s crucible. The molten metal is then poured from the crucible, usually into a cast.

    Induction melting is a process where metal is melted into liquid form in an induction furnace’s crucible. The molten metal is then poured from the crucible, usually into a cast.

  • Induction heating is a smart and proven way of melting metal and glass.

    Induction heating is a smart and proven way of melting metal and glass.

  • Induction post heating sub sea pipelaying

    Induction heating is characterized by features that make it ideal for offshore-related tasks: flameless, precise, mobile and versatile.

  • Heat treatment of oil and gas pipelines

    A Sinac being used to heat treat oil and gas pipelines

  • Induction-heating-shrink-fitting-of-motor-house

    Motor house: A semi-automated system with integrated conveyor belt for easy integration in p

  • ENRX Induction heating for post weld heat treatment PWHT

    A proven solution in a tough environment. An ENRX PWHT unit in use on advanced, corrosion-resistant alloy pipe in the Sahara deset.

  • Induction heating at offshore platform

    Mobile Minac systems bring induction solutions to offshore platforms

  • Induction shrink fitting of bearing

    An operator replaces a bearing that has been heated with an ENRX mobile Minac system

  • ENRX-induction-heating-system-used-to-pre-heat-the-weld-area

    The “Safe Concordia” accommodation and support platform. A mobile ENRX Minac system was used to pre-heat the weld area during the welding of a patch onto a crane tower.

  • Specialised induction heating systems-for-steel-strip-and-wire

    An example of induction pre-heating: the pipe is being heated prior to receiving an anti-corrosive coating.

  • Induction-preheating-pipe-is-being-heated-prior-to-receiving-an-anti-corrosive-coating.

    An induction coil specially designed and built for offshore industry requirements. Once heated by the coil (in red) the pipe can receive an anti-corrosion covering.

  • Induction preheating is a process whereby materials or workpieces are heated by induction prior to further processing.

    ENRX systems have been used for hot tap welding on the bed of the North Sea: Photo: Technip Norge AS.

  • Hot tap welding

    Specialist coils being tested for the Tampen subsea hot tapping procjet. Photo: Technip Norge AS

  • Induction preheating of seamless offshore pipes

    An medium-frequency ENRX Sinac pre-heats seamless offshore pipe prior to coating.

  • An ENRX induction heater preheats 170mm anode stubs.

    No dust, no fumes, no noise. An ENRX heater gets to grips with 170 mm anode stubs.

  • Expanding bolts with induction heating

    Induction heating is increasingly used to remove the giant nuts and bolts in power stations’ turbines.

  • ENRX Induction heating for wire and cables

    ENRX designs and builds specialised systems for steel strip and wire and cable pre-heating.

  • Preheating-induction-heating-used-to-perform-repairs-and-maintenance-on-oil-platform

    Minac units are frequently flown to oil platforms to perform repairs and maintenance.

  • Induction heating used for ardening of bearing and slewing rings. Shrink fitting of main shaft bearings and sleeve rings.

    Shrink-fitting of main shaft bearings and sleeve rings.

  • Induction heating for shrink fitting of rotor shaft and motor housing

    Shrink-fitting of rotor shaft and motor-housing

  • Induction heating Disassembling-and-shrink-fitting-bearing-and-lock-rings.

    Disassembling and shrink-fitting bearing and lock rings.

  • Induction heating is used for shrink fitting of bearing rings

    Bearing rings can be heated in a completely uniform manner and removed while the shaft remains cold.

  • Induction-heating-shrink-fitting-of-motor-house

    The innovative ENRX shrink-fitting system can heat any size of motor housing for electrical motors and pumps.

  • Induction heating is used for shrink fitting of gear wheels

    More and more automotive sub-contractors are opting for induction heating to shrink-fit gear wheels

  • Induction heating used for changing the shafts of an old bridge

    Induction heating used for changing the shafts of an old bridge

  • Induction-heating-solution-for-shrink-fitting-with-flexible-cable

    Shrink fitting with flexible cable

  • Induction heating is used for disassembling-and-assembling-of-bearing-rings-at-a-railway-repair-shop.

    Disassembling and assembling of bearing rings at a railway repair shop.

  • ENRX Induction heating for shrink-fitting-stator-house

    Manual solution for shrink-fitting of motor house

  • Induction-heating-shrink-fitting-of-motor-house

    Motor house: A fully automated system with robot handling.

  • Induction-heating-is-used-for-shrink-fitting-of-stator-house

    Motor house: A semi-automated system with manual loading and unloading.

  • Induction-heating-shrink-fitting-of-motor-house

    ENRX has delivered numerous solutions for shrink-fitting of stator housings.

  • Induction heating is widely used to straighten ship decks and bulkheads.

    Induction heating is widely used to straighten ship decks and bulkheads.

  • Induction straightening of heavy goods vehicles.

    Induction straightening of heavy goods vehicles.

  • An ENRX Terac system ensures failsafe operation—it makes it impossible to overheat magnetic steel.

    An ENRX Terac system ensures failsafe operation—it makes it impossible to overheat magnetic steel.

  • Terac works just as well on bulkheads and other vertical structures as it does on decks.

    Terac works just as well on bulkheads and other vertical structures as it does on decks.

  • For added ergonomic comfort, the handheld transformer can be attached to a balancer and suspended from a magnet or wire rope.

    For added ergonomic comfort, the handheld transformer can be attached to a balancer and suspended from a magnet or wire rope.

  • Operators can work with Terac within a 45m radius of the base unit. An optional extension unit lengthens the work area to 60m radius.

    Operators can work with Terac within a 45m radius of the base unit. An optional extension unit lengthens the work area to 60m radius.

  • ENRX-Deck-straightening-equipment

    ENRX Terac systems are specially designed for ship straightening. Each Terac includes a frequency converter, cooling system, operator panel and deck-heating unit.

  • Note the easy-to-use controls placed on the handle. It usually takes only a couple of hours to train an operator to use the Terac system.

    Note the easy-to-use controls placed on the handle. It usually takes only a couple of hours to train an operator to use the Terac system.

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