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Why Is a Portable Induction Brazing Machine in High Demand?
Induction brazing is a process in which two or more materials are joined together by a filler metal that has a lower melting point than the base materials using induction heating.
In induction heating, usually ferrous materials are heated rapidly from the electromagnetic field that is created by the alternating current from an induction coil.
Unlike traditional brazing methods that rely on a torch or flame, induction brazing is a more controlled and efficient process that can be easily adapted to various applications.
The Portable Induction Brazing Machine
A portable induction brazing machine is a compact, easy-to-use device that brings the power of induction brazing to your job site. It consists of a power supply, an induction coil, and a handheld applicator.
The machine generates an alternating current, which creates an electromagnetic field around the coil. This field induces a current in the metal parts being joined, generating heat and allowing the filler metal to flow and form a strong bond.
Advantages of Portable Induction Brazing Machine
There are specific reasons to use induction heating for industrial brazing. These include selective heating, better joint quality, reduced oxidation and acid cleaning, faster heating cycles, more consistent results and suitability for large volume production.
Selective heating
Induction heating can be targeted to provide heat to very small areas within tight production tolerances. Only those areas of the part in close proximity to the joint are heated; the rest of the part is not affected.
Since there is no direct contact with the part, there is no opportunity for breakage. The life of the fixturing is substantially increased because problems due to repeated exposure to heat (such as distortion and metal fatigue) are eliminated. This advantage becomes particularly important with high-temperature brazing processes.
With efficient coil design, careful fixturing and consistent part placement, it is possible to simultaneously provide heat in different areas of the same part.
Better quality joints
Induction heating produces clean, leak proof joints by preventing the filler from flowing in areas that it shouldn’t flow. This ability to create clean and controllable joints is one of the reasons that induction brazing is being used extensively for high-precision, high-reliability applications.
Reduced oxidation and cleaning
Flame heating in a normal atmosphere causes oxidation, scaling and carbon build-up on the parts. To clean the parts, applications of joint-weakening flux and expensive acid cleaning baths have traditionally been required.
Batch vacuum furnaces solve these problems, but have significant limitations of their own because of their large size, poor efficiency and lack of quality control. Brazing with induction reduces both oxidation and costly cleaning requirements, especially when a rapid cool-down cycle is used.
Fast heating cycles
Because the induction heating cycle is very short in comparison to flame brazing, more parts can be processed in the same amount of time, and less heat is released to the surrounding environment.
“An induction brazing system quickly delivers highly localised heat to minimize part warpage and distortion. Brazing in a controlled vacuum or in an inert protective atmosphere can significantly improve overall part quality and eliminate costly part cleaning procedures”.
Consistent results
Induction brazing is a very repeatable process because variables such as time, temperature, alloy, fixturing, and part positioning are very controllable. The internal power supply of the RF power supply can be used to control cycle time, and temperature control can be accomplished with pyrometers, visual temperature sensors or thermocouples.
Applications of Handheld Portable lnduction Brazing Machine
The portable induction brazing machine is breaking barriers and enabling innovation across multiple industries:
Toolmaking Industry
Extensively used in the production of mining, cutting, and drilling tools, including riveting bits, column bits, reamers, milling cutters, dovetail bits, carbide turning tools, tungsten steel tools, diamond tools, shearer cutting teeth, and all types of road header cutting teeth.
Hardware Industry
Applied in the manufacturing of precision molds, alloy steel components, brazed steel products, lighting accessories, hardware handles, and household tools such as egg beaters.
Medical and Dental Industry
With no open flame or emissions, the machine delivers clean, precise, and repeatable joints. It is trusted by both small laboratories and large-scale production facilities for brazing medical needles, scalpels, detectors, and a variety of other medical instruments.
Home Appliance Industry
Widely used for brazing aluminum sheets, stainless steel flat bottoms, composite pot bases, and electric heating pipelines.
Refrigeration Industry
Provides an efficient solution for brazing heating elements, compressor parts, heat distributors, air conditioning shunts, copper piping, mirrors, condensers, and other refrigeration components.
Automotive Industry
Ideal for brazing aluminum alloys and components of various geometries used in automotive heat exchangers.
Plumbing Industry
Efficiently brazes water pipe joints, faucets, tubes, couplings, adapters, and nipples.
Tips for Using a Portable Induction Brazing Machine
Prepare Properly
Clean and degrease copper pipes and fittings, and make sure all surfaces are deburred before starting the brazing process.
Select the Right Filler Metal
Choose a brazing alloy that matches the application and is compatible with the base metals being joined.
Use the Correct Coil
Pick an induction coil of the proper size and shape to ensure even heating and optimal brazing results.
Control the Temperature
Monitor joint temperature carefully so the filler metal flows smoothly and forms a strong, reliable bond.
Allow Natural Cooling
Let the joint cool at its own pace—avoid quenching or forced cooling, as it may introduce stress and weaken the joint.
Conclusion
Portable induction brazing machines offer a myriad of advantages over traditional brazing methods. Their portability, precision, energy efficiency and safety make them an invaluable tool in various industries.
Whether you’re working in aerospace, automotive, electronics, or any other field that requires reliable metal joining, portable induction brazing machines provide a versatile and efficient solution.
If you’re interested in exploring the benefits of portable induction brazing machines for your specific needs, contact us today.
As a trusted supplier, we offer a wide range of high-quality induction brazing equipment and accessories. Our team of experts is here to help you find the perfect solution for your applications, ensuring top-notch performance and reliability.
KEXIN’s induction melting furnace has higher thermal efficiency and lower energy consumption. They can produce a mild metal bath mixture, mixing a uniform alloy at a constant and uniform temperature. For these reasons, this type of furnace is the first choice for induction melting. Kexin products can flexibly meet all customer requirements.
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