Manual electric soldering bit capable of increasing welding efficiency of lead and bonding pad and improving welding reliability of lead and bonding pad

Abstract

The invention discloses a manual electric soldering bit capable of increasing the welding efficiency of a lead and a bonding pad and improving the welding reliability of the lead and the bonding pad, which relates to a manual electric soldering bit and aims to solve the problem that a circuit board is damaged at high temperature because the preheating and welding time is prolonged by using the traditional electric soldering bit to heat the lead and the bonding pad in a thermal conduction way and the problem of welding point reliability reduction caused by long-time severe interface reaction because of differences of microstructures inside a welding line, which is caused by non-uniform temperature of a part to be welded. The manual electric soldering bit disclosed by the invention has a structure as follows: the middle part of the end of the electric soldering bit is provided with an opening with the length of 3-10mm; the right part of the opening is longer than the left part of the opening; and a welding wire is added in a space formed between the left part of the opening and the plane of the bonding pad in a welding process. The manual electric soldering bit is suitable for the field of welding engineering of electronic devices.

Description

technical field [0001] The invention relates to a manual electric soldering iron tip. Background technique [0002] Manual brazing is a commonly used brazing method, which is widely used in the field of electronic product manufacturing. During the brazing process, the solder will melt under the action of the heat carried by the electric soldering iron, and at the same time wet and spread on the surface of the material to be welded heated by the electric soldering iron. After the soldering iron is removed, the solder will cool and solidify to form a manual solder joint. When the soldering iron preheats the materials to be soldered and during the soldering process, if the heating time is too long, it may cause the burning of the circuit board and other materials that are not resistant to high temperature. In addition, the reliability of the solder joint is determined by the wetting and spreading of the solder on the surface of the metal to be welded and its internal microstru...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing electric soldering iron heats the wire and the welding pad through heat conduction, which will prolong the preheating and welding time and cause the circuit board to be damaged by high temperature, and the uneven temperature of the part to be welded will cause the microstructure inside the weld There are differences, the long-term reaction makes the interface react violently and leads to the problem that the reliability of the solder joint is reduced, and a manual electric soldering iron tip that can improve the welding efficiency and reliability of the wire and the pad is provided.

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