Should Pay Attention To When Soldering Circuit Boards?

What are the points and points that novices should pay attention to when soldering circuit boards ?

Among PCB manufacturers, circuit board soldering generally includes reflow soldering, wave soldering and electric soldering iron soldering. Reflow soldering and wave soldering are automatic soldering, which are less affected by human factors. Electric soldering iron soldering is manual soldering, which is greatly affected by human factors. , the following mainly introduces several precautions for manual soldering of the circuit board with an electric soldering iron. In the actual production process, the process and component welding will always bring some problems that cannot be simulated, which will affect the electrical performance of the circuit board proofing . Let's talk about how to manually solder the circuit board.

Points to be paid attention to when soldering circuit boards for novices

1. Choose the right welding temperature

If the soldering temperature of the soldering iron is too high or too low, it is easy to cause poor soldering.

2. Welding components follow the principle of small to large

Welding components should be welded small first, and then large.

3. Pay attention to polarity reversal

Like some capacitors, resistors, diodes and triodes, there is a polarity direction, so avoid reverse connection when welding.

4. Tin is not easy to be too much

When soldering, make sure that there is tin around the solder joints to prevent false soldering, but it is not that the more tin the better, it is best when the tin layer of the solder joints is tapered. Pay attention to ventilation when soldering circuit boards. You can choose to equip an exhaust fan to prevent the gas generated during soldering from being sucked into the human body and causing harm to the human body.

5. Make full use of double-sided panels

Each pad of the double-sided board can be used as a via hole to flexibly realize the front and back electrical connections.

6. Make the most of the space on the board

If it is a development board, you can hide the vias and small components under the large chip, but it is generally not recommended, because it is difficult to fix if there is a problem in subsequent maintenance and inspection.

How should novices solder PCB circuit boards ? The knowledge points that novices should pay attention to when soldering circuit boards. If you want to know more about circuit board proofing , you can pay attention to Lingzhuo PCBA. If you need to know more about PCB proofing, SMT patch, and PCBA processing, please leave a message Obtain!