Solder machine manufacturers of automatic soldering machine in the efficiency and accuracy has been far ahead of manual welding, computer version screw machine efficiency is very high, non-manual can be compared, even skilled welding master, can not be as long as the automation equipment high-precision, high-strength continuous welding, automatic dispensing machine is widely used in semiconductor, electronic parts, LCD manufacturing and other fields, However, when using the automatic soldering machine, you also need to master some basic skills and methods. These tips and methods can make you more familiar with the automatic welding machine, welding out the perfect product.
Welding must have good weldability, the so-called weldability refers to the function that the solder can form a good separation alloy with the metal material and solder at the appropriate temperature. Not all metals have good weldability, some metals such as chromium, molybdenum, tungsten, etc., have poor weldability, and some metals have good weldability, such as copper, brass, etc. During the welding process, due to the low welding temperature, oxide film is produced on the metal surface, which affects the weldability of metal materials. In order to improve the solderability, measures such as tin plating and silver plating can be taken to avoid the oxidation of the data surface.
2. The weldment surface must be kept clean. In order to achieve good separation between solder and weldment, the welding surface must be kept clean. Even weldability with excellent weldability, due to storage or oxidation, will also produce on the surface of the weldability harmful to wetting oxide film and oil stains. Clean the dirty film before welding, otherwise the welding quality cannot be guaranteed. The light oxide layer on the metal surface can be cleaned with flux, and the metal surface with severe oxidation should be cleaned by mechanical or chemical methods, such as stop scraping or pickling.
3, before the use of the soldering machine to tin, the specific analysis method is: put the soldering iron on the heat, to be able to melt leading to solder, coated with flux, and then evenly coated with solder on the soldering iron head, so that the soldering iron head can evenly eat a layer of tin.
The welding method of the soldering machine is to clean the pad and the pin of the part with fine sandpaper and apply the flux. Touch the solder joint with the tip of the soldering iron. After the solder on the solder joint has melted and dipped into the component lead, gently lift the tip of the solder iron along the pin of the component away from the solder joint.
5, soldering machine welding time should not be too long, otherwise easy to burn components, if necessary, the tweezers can be used to clamp the pin to help heat dissipation.
Under the above conditions, the welding spot of the automatic welding machine is smooth and bright, the welding layer is uniform and thin, the ratio of the welding pad is suitable, the outline of the welding spot is blurred and visible, the solder is sufficient, the skirt is spread, and there is no crack, pinhole and flux residue.
