It is used in semiconductor chip packaging industry aluminum wire or aluminum strip welding process of bonding equipment. At one end of the steel nozzle, the contact aluminum wire is used for welding. The contact aluminum wire end includes the edge of the joint between the bonding groove and the surface size of the key and groove on the end of the steel nozzle. When welding line process key fit, contacts the bonding grooves can be directly on the aluminium wire end friction extruded aluminum to chip, steel mouth converts electrical energy into mechanical energy, through steel mouth is passed on to the aluminum wire, aluminum wire and the chip intersect welded together. The shape can be based on different applications and can be roughly designed to be aluminum and aluminum.

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