Brazing Thin Copper Tube With Induction

Brazing Thin Copper Tube With Induction  Objective: To braze a thin copper oval tube to a brass fitting at 1400 º F and to cap the other end of the copper tube with a brass plate. Material: Brass fitting - 0.875 in2 and 2.5 in long (22mm2 x 64mm) Copper tube 0.01 in (0.254mm) wall Brass plate 0.10 in (2.54mm) thick and 0.5 in X 0.25 inch Braze alloy shim and white flux Temperature: 1400 ºF (760 °C) Frequency: 300 kHz Equipment: DW-UHF-10KW induction power supply equipped with a remote heat station using two 1.32μF capacitors (total 0.66 μF) Two custom-designed induction heating coils. Process A split, f our-turn induction coil is used to deliver the heat energy into the brass fitting (Fig. 1). To prevent over heating of the edges of the brass fitting and the thin copper tube, a smaller coil diameter (Fig. 2) was added to deliver heat into the brass fitting. A braze shim preform is placed at the joint area, and is then covered with white flux. The height of the coil is adjusted to deliver proportional heat to the assembly. This setting raises the temperature of the thicker brass piece and the thin copper tube at the same rate enabling a uniform flow of the braze shim preform. The other end of the copper tube is brazed successfully using a 2-turn helical coil (Fig.3.) Results/Benefits • Preservation of the copper's mechanical properties • Minimized heat migration along both ends of the tube • Reduced heat-up time (under 60 sec.) https://dw-inductionheater.com/brazing-thin-copper-tube-with-induction.html?feed_id=252494&_unique_id=6685947e7ce60

Brazing Brass Fittings With Induction

Brazing Brass Fittings With Induction Objective :To heat brass tubing assemblies to 750°C for a brazing application. The tubing diameter varies from 3 to 8 inches (76.2 to 203.2 mm) Material: Brass tubing Brass flange Braze rings Braze flux Temperature :1382°F (750°C) Frequency 200 kHz Equipment DW-UHF-20KW, 150-500 kHz induction heating power supply, equipped with a remote heat station containing eight 1.0 μF capacitors (total 2.0 μF). A multi-turn helical coil induction heating coil designed and developed specifically for this application. Process The parts are disassembled. All connections are cleaned and braze flux is applied to the entire surface of the assembly. Before assembling the parts an induction coil is slipped over the tube. The brass coupling is placed over the brass tubes. The flux on the parts is allowed to dry before heating. The induction heating power is applied until the braze flows well at the joint. The assembly heats well to 1382°F (750°C) and melts the braze alloy all around the tube. Heating time is several minutes depending on flange diameter. Results/Benefits The coil allows heating at the best possible efficiency which reduces the cycle time and the conducted heat along the brass tubes. https://dw-inductionheater.com/brazing-brass-fittings-with-induction.html?feed_id=252426&_unique_id=6684ddcf51384

Brazing carbide shaft with induction

Brazing carbide shaft with induction Objective: Braze a carbide shaft to a steel tube Material: Carbide shaft 1/8" to 1" diameter (varying sizes) Steel tube 3/8" to 1 ¼" OD Silver solder braze Temperature: indicating paint Temperature: 1400 °F for 60 seconds Frequency300 kHz Equipment: DW-UHF-6KW-III, 150-400 kHz solid state induction heating system equipped with a remote heat station containing two 0.66 μF capacitors (total 1.32 μF) A multi-turn helical coil Process: Silver solder is applied to where the carbide shaft and steel tube meet. The clearance between the two parts is approximately .0005". A small piece of solder braze is placed on the part and then the part is heated. It takes about 60 seconds to flow the braze with the best heat migration and solder flow. Even though the part can be heated faster, optimal results are obtained at 60 seconds. Results/Benefits: Induction heating provides even, precise heat. Precise directed heat is required for the solder braze to flow evenly around the part to assure a good joint. https://dw-inductionheater.com/brazing-carbide-shaft-with-induction.html?feed_id=252358&_unique_id=6684270e9841c

Brazing Cutting Tool with Induction

Brazing Cutting Tools with Induction Objective: To braze cone and shaft for a cutting tool Material Customer supplied parts Temperature indicating paint Braze preforms Temperature 1300 - 1400 ºF (704 – 760 °C) Frequency 400 kHz Equipment: DW-UHF-6kw-I, 250-600 kHz induction heating system, including remote heat station using two 0.66 μF capacitors (total 1.32 μF) A two-position, two-turn induction heating coil designed and developed specifically for this application. Process: Two sets of parts are placed in the individual coils. Braze preforms are placed on the cone at the joint. The assembled part is placed inside the induction heating coil and heated until the braze melts. Results/Benefits: efficient coil design enables simultaneous heating of two parts on the single 2kW system. dual braze is accomplished within required process time, increasing process throughput https://dw-inductionheater.com/brazing-cutting-tools-with-induction.html?feed_id=252290&_unique_id=6683702135bed

What is Induction Brazing?

What is Induction Brazing? Induction 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? DaWei 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. What equipment is available? Our Induction brazing solutions usually include an DaWei Handheld Induction heating system. https://dw-inductionheater.com/what-is-induction-brazing.html?feed_id=252222&_unique_id=6682b9500531d