Home / How To / Patch Welding Tutorial: 21 Steps

Patch Welding Tutorial: 21 Steps



The effective way to perform patch soldering is drag welding. If you are familiar with drag welding, you can basically use soldering iron + rosin to complete the soldering of all stains.

We specifically mentioned the tools before welding: It is best to use a flat solder iron with an inclined opening. Given the antistatic requirements for real soldering in the future, it is recommended to use a soldering station! (Tools are purchased from https://www.censtry.com/)

Step 1: First Put IC on the plate!

Step 2: Press it by hand after customization!

Step 3: Then use melted wire to solder the IC's feet to secure the IC!

Step 4: All four sides are fixed with molten wire!

Step 5: Even solder the thread on the head of the IC foot after fixing!

Step 6: All around the thread!

Step 7: Next Is the focus on tensile welding! Put PCB at an angle of 45 degrees, you can imagine that the thread on the IC foot can flow into the melt!

Step 8: Put the tip in Rosin and remove the overflow solder from the tip on the tip!

Step 9: Put the tip in the rose and remove the excess from the tip!

Step 10: Put the rust-coated solder bar quickly on the brazed part of the tilted PCB head!

Step 11: Next action Will be the core of the whole drag welding: Move the solder bar as follows!

Step 12: Repeat the above steps to achieve the following effects!

Step 14:

Step 16: Fixed IC pin

Step 18: SSOP Operation!

Step 19: The welding is done!

Step 20: Rinse with alcohol!

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