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Induction heating tube and pipe

Tube and pipe

EFD Induction is a well-known name in the tube and pipe industry. The excellent reliability, efficiency and robustness of our high frequency, solid-state Weldac tube welders confirm our leading position as a provider of cost-effective, high-uptime systems.
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Some of the areas where we supply solutions are:

  • Seam annealing of longitudinal tube welds
  • Full body annealing of both magnetic and non-magnetic tube products 
  • Pre-heating and postheating of various workpieces
  • Longitudinal seam welding of tubes and pipes in dimensions from OD 3/8”-26”/10 mm –  660 mm  
  • Brazing of heat transfer tubing (boiler, refrigerator and HVAC)
  • Preheating and stress relieving of OCTG pipe ends
  • Coating and post-weld heat treatment (PWHT) of oil and gas pipes
  • Customized solutions for every dimension and alloy type

    The EFD Induction  subsidiary, EHE Consumables, delivers a comprehensive range of induction coils, impeders, ferrites, scarfing systems and other products for tube welding.

Videos

Induction welding

Induction welding is used in the tube and pipe industry for the longitudinal welding of stainless steel (magnetic and non-magnetic), aluminum, low-carbon and high-strength low-alloy (HSLA) steels and many other conductive materials.

Seam normalizing

In-line seam normalizing systems from EFD Induction—a proven way to meet oil and gas pipe standards.

Images

Tube and pipe welding with induction heating

Automated induction longitudinal welding is a reliable, high-throughput process

Induction heating for tube and pipe welding

The high-speed throughput and reliability of induction welding makes it perfect for the tube and pipe industry.

Tube and pipe welding with induction heating

Weldac can be fitted with various induction coils or with quick-lifting contact heads.

Induction heating for tube and pipe welding

The low power consumption and high efficiency of EFD Induction welding systems reduce costs.

Seam normalizing with induction heating

Advanced seam normalizing. For advanced alloys and pipe.

Seam normalizing with induction heating

EFD Induction seam normalizing systems are easy to control. They are specially designed to work with EFD Induction power sources, coils and handling mechanisms.

Seam normalizing with induction heating

One of our horizontal tracking seam normalizing systems. The induction coils are positioned above the pipe, and track the seam with the help of a specially designed tracking camera.

Brazing of a copper tube to an aluminium heat with induction heating

Brazing of a copper tube to an aluminium heat exchanger. Note the automatic filler material feeder.

Brazing of a heat exchanger with induction heating

Induction brazing of a heat exchanger.

Brazing heat distributor with induction heating

Induction brazing of heat distributors.

Brazing of heat distributors with induction heating

Induction brazing of heat distributors.

Technical Articles

Maximising output in high-frequency tube and pipe welding

The authors evaluate the parameters that influence welder performance and scrap production during changeover in the high-frequency tube and pipe welding process.

Maximizing uptime in high-frequency tube and-pipe welding

This article explains some basic principles of solid-state welder design that are crucial for maintaining operation under various conditions.

New high-frequency converter for induction heating

This paper presents a new high-frequency-converter for induction heating. The converter has a diode rectifier and automatic matching.

Weld setup, variable frequency and heat affected zones in high frequency tube and pipe welding

The article investigates the impact that geometrical changes in the weld zone have on weld frequency and the Heat Affected Zone (HAZ).

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