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[1] [2] [3] The RF power generator converts line power to high-frequency, high-voltage power for welding. Typical voltages are 1kVAC – 1.5kVAC at a frequency of 27.12 MHz. [1] The power needed for welding is based on the area of the weld, thickness, and the material. [2] The control unit is the system used for operating the machine.
The apparatus used for induction welding processes includes a radio frequency power generator, a heating station, the work piece material, and a cooling system. The power generator comes in either the form of solid state or vacuum tube and is used to provide an alternating current of 230-340 V or a frequency of 50–60 Hz to the system.
An induction generator is used to produce high frequency current in the range of 2 to 10 MHz. [5] The range used is regulated by the FCC to avoid interference with broadcast signals. An induction coil converts the high frequency current from the induction generator into the necessary alternating magnetic field. A single turn coil may be used ...
This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]
With speed welding, the plastic welder, similar to a soldering iron in appearance and wattage, is fitted with a feed tube for the plastic weld rod. The speed tip heats the rod and the substrate, while at the same time it presses the molten weld rod into position. A bead of softened plastic is laid into the joint, and the parts and weld rod fuse.
Holly Pond Ag teacher and FFA sponsor Rusty Roden said the school's Ag Department was steeped in more than "50 years of greatness" and hoped this new facility would be another tool which allowed ...
In 1970, the low frequency process was superseded by a high frequency ERW process which produced a higher quality weld. Over time, the welds of low frequency ERW pipe were found to be susceptible to selective seam corrosion, hook cracks, and inadequate bonding of the seams, so low frequency ERW is no longer used to manufacture pipe.
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