How do you remove solder?

There are two primary methods for removing solder: using solder wick (desoldering braid) and using a solder sucker (desoldering pump).

Methods for Solder Removal

Here's a breakdown of each method:

1. Solder Wick (Desoldering Braid)

• How it works: Solder wick is a copper braid that absorbs solder through capillary action. The flux within the wick helps the solder melt and flow into it.

• Steps:

  1. Place the solder wick on top of the solder joint you want to remove.
  2. Apply a hot soldering iron to the wick, directly over the solder joint.
  3. As the solder melts, it will be drawn into the wick.
  4. Remove the soldering iron and the wick simultaneously.
  5. Cut off the used portion of the wick, exposing a fresh section for the next use.

• Advantages: Simple, relatively inexpensive, and doesn't require additional power.

• Disadvantages: Can leave some solder residue, and the wick can quickly become saturated.

2. Solder Sucker (Desoldering Pump)

• How it works: A solder sucker is a tool that creates a vacuum to suck molten solder away from a joint.

• Types: There are bulb-style and spring-loaded piston-style solder suckers.

• Steps:

  1. Melt the solder joint with a soldering iron.
  2. Position the tip of the solder sucker as close as possible to the molten solder.
  3. Activate the vacuum (squeeze the bulb or release the piston). This will quickly suck the molten solder into the tool.
  4. Clean the solder sucker periodically by ejecting the collected solder.

• Advantages: Removes solder quickly and efficiently.

• Disadvantages: Can be less precise than solder wick, requires practice to use effectively, and can sometimes damage sensitive components if used improperly.

Both methods work by applying heat to melt the solder. The solder then follows the flux from the components and is drawn into either the solder wick or the solder sucker.