PCB Technical - Factors affecting the unsatisfactory quality of PCBA soldering

Factors affecting the unsatisfactory quality of PCBA soldering
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PCBA is an indispensable part of electronic products. The performance of PCBA affects the realization of electronic products. Therefore, the production process of circuit boards is demanding. For example, during the welding process of circuit boards, if the welding is not good, it will directly affect electronic components. The parameters of the circuit board cannot work normally. The following describes the factors that affect the welding quality of the PCB board:
1. The composition and welding performance of welding materials.
Circuit board welding mainly includes electrodes, solder and other related welding materials. The composition and performance of these materials will directly affect the quality of circuit board welding. In addition, it is also noted that the chemical reaction during the welding process is the chemical reaction during the welding process, which is the circuit board An important part of the welding process, the main function is the role of the channel connecting the circuit board.

2. Welding method.
When the circuit board is soldered, it is necessary to select the soldering method according to the specific situation. The main basis is to choose according to the difference between the melting point of the solder. Remember that you cannot choose the soldering material. During the soldering process, the soldering process that is higher than the melting point is lower. Generally speaking, we can choose white rosin and isopropanol solvent.The flux is removed by heat conduction, corroding the circuit board, and the surface wetting is soldered to the circuit board.
3. Soldering temperature.
The soldering temperature of the circuit board is also an important factor affecting the quality of soldering. If the soldering temperature is too high, the dispersion speed of the solder melt will increase, the activity will increase, and the circuit board will also accelerate the oxidation reaction of the molten solder, which will eventually lead to the circuit board soldering quality that does not meet the requirements. Require.
4. The surface of the circuit board is clean.
If the surface of the circuit board is not clean enough, there will be debris, which directly enters the tin can and becomes a tin ball, and the tin ball loses its luster. Therefore, the cleanness of the circuit board surface also directly affects the quality of soldering. Our factory is located in China. For decades, Shenzhen has been known as the world's electronics R&D and manufacturing center. Our factory and website are approved by the Chinese government, so you can skip the middlemen and buy products on our website with confidence. Because we are a direct factory, this is the reason why 100% of our old customers continue to purchase oniPCB.
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