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Brazing with induction heating

Induction brazing

EFD Induction offers brazing in various important fields such as the automotive, aviation, electrotechnical and white goods industries.
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What is induction brazing?

Brazing is a materials joining process that uses a filler metal (and usually an anti-oxidizing solvent called flux) to join two pieces of close-fitting metal together without melting the base materials. Instead, induced heat melts the filler, which is then drawn into the base materials by capillary action.


What are the benefits?

Induction brazing can join a wide range of metals, even ferrous to non-ferrous. Induction brazing is precise and quick. Only narrowly defined areas are heated, leaving adjacent areas and materials unaffected. Correctly brazed joints are strong, leak-proof and corrosion resistant. They are also very neat, usually requiring no further milling, grinding or finishing. Induction brazing is ideal for integrating into production lines.


Where is it used?

EFD Induction brazing systems can be used for virtually any brazing task. To date, our systems are typically used in the electrotechnical industry to braze generator and transfomer components like bars, strands, rings, wires and SC-rings. They also braze fuel pipes and AC and brake parts for the automotive industry. The aeronautics sector uses induction to braze fan blades, blades for casings, and fuel and hydraulic systems. In the houseware industry, our systems braze compressor components, heating elements and faucets.

 

Learn more

Induction heating for brazing
Induction brazing

What is induction brazing? Brazing produces strong, shock-resistant and visually attractive joints. But why select induction over flame brazing?

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Induction heating for brazing of short-circuit rings
Induction brazing of short-circuit rings

Induction brazing of short-circuit rings delivers several technical and cost benefits.

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Induction heating for brazing of faucets
Induction brazing of faucets

Improved throughput. Consistent quality. Easy operation. High reproducibility. A more productive working environment. These are just some of the advantages when brazing faucets with induction.

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Videos

Induction brazing

Learn about the potential and benefits of induction brazing - a technology with many advantages over traditional flame-heating.

Aluminium brazing

Brazing aluminium is a demanding task. The reason is the need for exact temperatures. EFD Induction has unrivalled expertise in this application and is the world's leading developer of induction heating solutions for aluminium brazing.

Controlled atmosphere brazing

Brazing in a controlled atmosphere is a flux-free solution being increasingly used.

Turnkey brazing machines

EFD Induction turnkey brazing machines are pre-assembled and ready-to-work. They come complete with induction heater, coil, braze material, flux, fixtures, cooling and temperature control.

Customized brazing machines

Customized brazing machines are designed for one particular type of workpiece or closely related workpieces. EFD Induction brazing machines come complete with induction heater, coil, braze material, flux, fixtures, cooling and operator control.

Images

Induction brazing of brake linings

Induction brazing of brake linings

Induction brazing of evaporator and condenser connections

Induction heating is a perfect method for high throughput brazing of evaporator and condenser connections.

Induction brazing a plough share

An EFD Induction Sinac heat generator in action brazing a plough share.

Induction brazing of aluminium parts

Induction brazing of aluminium parts

Induction heating used for brazing of aluminum

EFD Induction has unrivalled expertise in making efficient solutions for aluminium brazing

Brazing of compressor parts with induction heating

Induction brazing of compressor parts.

Brazing banjo nipples with induction heating

Induction is a high throughput, no-contact heating method. It helps ensure strong yet barely visible joints—and the outstanding aesthetics expected by today’s customers.

Protective atmosphere brazing of banjo nipples with induction heating

High-quality banjo nipples being brazed under a controlled atmosphere in a customized EFD Induction brazing machine.

Brazing support bars for sofa with induction heating

Induction brazing steel support bars for sofas.

Brazing of cable shoe with induction heating

Induction brazing of cable shoe.

Brazing of carbide tips, blades and bits with induction heating

Devising brazing systems for carbide tips, blades and bits is an EFD Induction speciality.

Brazing of evaporator and condenser connections with induction heating

Induction heating is a perfect method for high throughput brazing of evaporator and condenser connections.

Brazing of contactor with induction heating

A contactor being induction brazed

Induction heating - Controlled asmosphere induction brazing

Controlled atmosphere brazing at an EFD Induction production facility. This method is increasingly used for large-volume production of high-quality, mission-critical components.

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.

Induction brazing is fast, precise, clean, energy efficient, controllable and repeatable.

Induction brazing is fast, precise, clean, energy efficient, controllable and repeatable.

Brazing of generator windings with induction heating

Induction brazing of generator windings

Brazing heat distributor with induction heating

Induction brazing of heat distributors.

Brazing of heat distributors with induction heating

Induction brazing of heat distributors.

Brazing of heating element with induction heating

Induction brazing of heating element

Brazing of refrigerator parts with induction heating

Induction brazing of refrigerator parts. Note the convenience of our handheld heat output unit.

Brazing microphone with induction heating

Induction brazing of a microphone.

Brazing  pool windings with induction heating

Customized induction heating solution for brazing of pool windings.

Brazing short-circuit rings (SC-rings) with induction heating

Induction brazing of short-circuit rings

Brazing short-circuit rings (SC-rings) with induction heating

A stationary coil during brazing of a short-circuit ring for one of the world’s leading power generation equipment companies

Induction brazing silver filler

Bars of silver filler about to be heated for brazing bars to a short-circuit ring. Once heated to the correct temperature, the filler will appear to ‘float’ on the surface of the metal, before being distributed throughout the joint by capillary force.

Strong joints with induction brazing

Usually, the strongest joints are made by allowing just enough space for the filler metal to flow into the joint area. Wider spacing will generally result in a weaker joint.

Brazing of faucets with induction heating

Fast, precise, controllable and easy to use. Induction is perfect for faucet brazing—whether it’s tube-to-socket, tube-to-tube or thread insert brazing.

Induction brazing vs lame brazing

Brazing with an EFD Induction system. Note how the heating zone is fully visible, something that is practically impossible with flame brazing.

Brazing of stands with induction heating

Induction heating is the perfect choice for brazing of bars, strands, rings and wires in motors, generators and transformers. This photo shows brazing of strands.

Brazing of contactor with induction heating

A manual loading/unloading system for brazing of contactors.

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