There are many metal bonding methods such as fusion bonding, pressure welding, brazing, etc. Piezo elements welding generally uses braze welding way. By heating solder with low melting point, make it flow and infiltrate into area between wire and piezo elements, and they are connected together after solidify. In general, bond wires on both positive and negative electrodes of piezo components, or separately bond on metal sheets and piezos. According to different requirements for large quantity and standardized piezo crystals, it can also be divided into manual bonding and automated welding by equipment.
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