Generally in the circuit maintenance, often from the PCB board assembly circuit, because the integrated circuit pin more dense, very difficult to assemble, and sometimes damage the integrated circuit and PCB board. Here are a few examples of effective integrated circuit assembly methods for your reference.
Multi-strand copper absorption tin assembly method: is the application of multi-strand copper core plastic line, remove the plastic skin, the use of multi-strand copper wire (can be used short-term). Before use, the first multi-strand copper wire rosin alcohol solution, until the electric iron will be multi-strand copper wire into the manifold lead on the heating, so that the soldering on the pin will be copper wire adsorption, suction On the part of the solder can be cut, repeated several times to be able to wear all the solder on the pin. There is a requirement that the braided wire in the shielded wire can also be used. Just put the solder suction, with tweezers or small "one" word screwdriver quietly a pry, manifold can be removed.
Increased Solder Ablation Assembly Method: This approach is an easy way to add a little solder to the assembly block pins to be assembled so that the solder joints on each column are connected so as to facilitate heat transfer and ease of assembly The When assembling, use a soldering iron to heat a row of pins with a sharp tweezers or a small "one" screwdriver to pry a pry, and the two rows of pins are rotated for cleaning until they are removed. Under normal conditions, each column of pins can be removed twice by heating.
Electric iron brush with the assembly method: the method is easy, just have a soldering iron and a small brush can be. Assembly of the first block when the electric iron heating, to be reached the tin temperature of the solder on the solder after melting, took the opportunity to use the brush to remove the dissolved solder. This allows the pin of the manifold to be separated from the PCB. The approach can be implemented separately or separately. Finally, use the tip tweezers or small "one" screwdriver to pry the manifold.
Medical hollow needle assembly method: take medical 8 to 12 hollow needle a few. It is advisable to use the inner pin of the needle when it is just to cover the manifold pin. When assembling, soldering the soldering of the pin with a soldering iron, pinching the pin with the needle in time, then removing the soldering iron and rotating the needle. After the solder is condensed, pull the needle out. So that the pin is separated from the PCB. After all the pins are done so, the manifold can be removed at will.
Suction tin suction tin assembly method: the use of suction tin assembly assembly block, which is a commonly used professional approach, the use of tools for the general suction, welding dual soldering iron, power in 35W or more. Assembly of the integrated block, just after the heating of the dual-purpose electric iron on the assembly to be assembled on the pin, to be solder after the melting of tin was sucked into the tin device, all the solder after the lead Can be removed.
