Loudspeaker voice coil wire welding soldering flux and preparation method thereof

Abstract

The invention discloses a loudspeaker voice coil wire welding soldering flux and a preparation method thereof, and aims to solve the problems that a rosin water soldering flux for welding the voice coil wire has low soldering performance, extremely low welding productivity and dark and lusterless welding spots and that phenomena of loose welded voice coil wire, insufficient welding and cold solder easily occur after welding so as to cause a soundless loudspeaker or intermittent sound of the loudspeaker. The soldering flux comprises soldering fluid consisting of the following components: 3.8 to 4.8 weight percent of ammonium chloride, 0.07 to 0.12 weight percent of anhydrous sodium carbonate, 38 to 46 weight percent of glycerol and 50 to 58 weight percent of absolute ethyl alcohol; and thesoldering flux also comprises rosin water which accounts for 70 to 80 percent of the total weight of the soldering flux. The soldering flux has good soldering performance, high welding productivity and saturated and bright welding spots, so that the voice coil wire is welded firmly. Therefore, the stable acoustical property of a loudspeaker is guaranteed.

Description

technical field [0001] The invention relates to a flux, in particular to a flux for welding a loudspeaker voice coil wire and a preparation method thereof. Background technique [0002] The voice coil is the core component of the speaker, and the quality of the voice coil assembly has a great influence on the acoustic performance of the speaker. The voice coil includes a voice coil frame and a continuous voice coil wire wound on the voice coil frame, and the voice coil wire needs to be welded and fixed during the assembly process of the voice coil. As a commonly used auxiliary material for speaker welding, flux is widely used in the field of speaker welding. Rosin water (a mixture of rosin and absolute ethanol) is generally used as flux when welding voice coil wires. The production capacity of the welding process is extremely low, and the solder joints are gray and dull after welding. After the flux is used on the voice coil wire, it is very easy to cause the voice coil wir...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor soldering performance of pine perfume flux used in voice coil wire welding, extremely low welding productivity in the welding process, dark and dull solder joints after welding, and weak welding of voice coil wires after welding. Welding, false welding phenomenon, and then lead to silent speakers or loudspeaker sound sometimes no problem, to provide a speaker voice coil welding flux, it has good soldering performance, high productivity welding process, full solder joints after welding, bright , so that the voice coil wire is welded firmly, so as to ensure the stable acoustic performance of the speaker