High-frequency electromagnetic induction focusing welding device

Abstract

The invention provides a high-frequency electromagnetic induction focusing welding device comprising a welding platform, a high-frequency focusing induction heating head arranged at the upper end of the welding platform and a high-frequency electromagnetic generator arranged at the lower end of the welding platform and connected with the high-frequency focusing induction heating head. A three-dimensional movement mechanism used for driving the high-frequency electromagnetic generator to conduct three-dimensional movement is arranged above the welding platform, the high-frequency focusing electromagnetic induction heating head comprises a plurality of conical ferrites and hollow induction coils wound around the peripheries of the conical ferrites, and each hollow induction coil is filled with cooling liquid capable of flowing circularly. The high-frequency electromagnetic induction focusing welding device is simple in structure, the conical ferrites are the solid conical ferrites, a magnetic field generated by each hollow induction coil can be effectively focused on the conical tip of the corresponding conical ferrite, and therefore the magnetic flux density of the conical near-end position of each conical ferrite is greatly enhanced, and good induction heating can be achieved even in a micro-nano scale. Therefore, the purpose of micro-nano-scale welding is achieved, and the warping phenomenon of substrates can be reduced.

Description

technical field [0001] The invention relates to the field of welding devices, in particular to a high-frequency electromagnetic induction focusing welding device. Background technique [0002] Electromagnetic induction equipment applies an alternating current to the coil to excite an alternating magnetic field, causing the object to be heated to generate eddy currents to achieve the purpose of heating. However, the size of heated objects is generally too large (all greater than 1mm), and there is no corresponding electromagnetic induction equipment for the effective heating of samples with a size smaller than 1mm, especially micro-nano scale samples. In addition, although laser welding equipment and reflow ovens can also heat and weld micron-scale samples, the laser can only be welded at a single point and the excessive thermal stress of reflow soldering can easily lead to serious warping of the substrate. Contents of the invention [0003] In order to solve the problems ...

AI Technical Summary

Problems solved by technology

However, the size of the object to be heated is generally too large (all greater than 1mm), and there is no corresponding electromagnetic induction equipment for the effective heating of samples with a size smaller than 1mm, especially micro-nano scale samples.

In addition, although laser welding equipment and reflow ovens can also heat and weld micron-scale samples, the laser can only be welded at a single point and the excessive thermal stress of reflow soldering can easily lead to serious warping of the substrate

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