Automatic soldering machine works

Automatic soldering is accomplished through three physical and chemical processes: wetting, diffusion, and metallurgical bonding. The first is the principle of wetting, which means that the solder (tin wire) that has melted has flowed along the fine irregularities of the surface of the base metal and the gaps between the crystals by the capillary force to form an adhesion layer on the surface of the base material to be welded. Bring the atoms of the solder and the base metal closer to each other and reach the distance at which the atomic attraction works. Environmental conditions that cause wetting: The surface of the base metal to be welded must be clean and free of oxides or contaminants. An image metaphor for the image is: Drop water droplets on lotus leaves to form water droplets, that is, water cannot moisten lotus flowers. Drop water onto the cotton and the water penetrates into the cotton, which is water that wets the cotton.

The second is the principle of diffusion. With the progress of wetting, the interdiffusion between the solder and the parent metal atoms begins to occur. In general, the atoms are in a state of thermal vibration in the lattice, once the temperature rises. Atomic activity is intensified, so that the molten solder and the atoms in the parent metal cross each other across the contact surface into the lattice of the other party. The speed and number of atoms are determined by the heating temperature and time. This we can clearly see the re-welding process, is the phenomenon of melting of tin wire after the phenomenon of open.

Finally, the principle of metallurgical bonding, due to mutual diffusion of solder and base metal, formed an intermediate layer between the two kinds of metal --- metal compounds, in order to obtain good solder joints, metal compounds must be formed between the base material and the solder to be welded. , so that the base metal to a solid state of metallurgical bonding.

The above is the basic working principle of the automatic soldering machine. Everybody who is interested can contact the manufacturer for further consultation.