QA

Question: How To Take Solder Off

How do you remove solder without desoldering tool?

Use something called solder wick. Its a rosin flux impregnated fine copper braid – comes in several widths but it will wick the solder out of joints. Usually cut the leads of the component being removed, heat and pull the leads out, then use the wick to absorb the solder out of the holes.

Do you have to remove old solder?

Unless the solder creates short circuits or structural problems, you can heat the solder until it melts, and then push your components through. The solder will still work. You will even get a connection to it. However, if the old solder will cause problems, then you have no choice but to remove it.

How do you remove solder from a circuit board?

Tip 2: How to remove solder without heat If you want to clean solder off a circuit board without using heat, using a compressed air machine is your best alternative. The compressed air inside the can will merely blast the solder away from the circuit board using its high pressure.

How do you Desolder a solder wick?

To use solder wick, simply place the end of the wick over the solder you want to remove and then place your heated solder tip over it. The braid heats up and encourages the solder to “wick” into it. When it starts to work, you will actually be able to see the solder being pulled up into the solder wick.

What tool is used to remove solder from the PCB?

A desoldering pump, colloquially known as a solder sucker, is a manually-operated device which is used to remove solder from a printed circuit board. There are two types: the plunger style and bulb style. (An electrically-operated pump for this purpose would usually be called a vacuum pump.).

How do you remove solder without a vacuum?

Place your wick against the point where you want to remove solder, then hold your irons tip over that point. You’ll see the solder soak into the wires around the point where your iron is touching once it gets hot enough to melt.

How do you remove solder without heat?

Touch the cold flat head screwdriver to the liquid solder, and quickly remove it. If done properly, the solder should adhere to the cold screwdriver and can be removed from the surface. This process can be repeated to remove any remaining amount of solder.

Can you melt old solder?

Prime your iron by putting a dab of new solder on the tip. With the solder on the tip put it on the old solder and it should liquify.

What is desoldering wick?

Desoldering braid or “wick” is a pre-fluxed copper braid that is used to remove solder, which allows components to be replaced and excess solder (e.g. bridging) to be removed.

Do you need flux to desolder?

You will need to add your own flux as you desolder. Unfluxed wick has a part number that starts with 1830 through 1833.

How do you Desolder without an iron?

You can use anything that is able to heat a piece of metal up to the melting point of your solder (between 400°F / 200°C and 700°F / 370°C). Butane lighters work the best. But you can also use candles, oil lamps, alcohol burners, or even open camp fires.

What will dissolve solder?

Fluroboric acid (0.3M) with hydrogen peroxide (0.2M) selectively removes solder quite nicely.

Can you remove solder with a lighter?

First strip together two ends of a wire by removing their outer cover. Now take a lighter and start heating the wire ends. When its starting to melt use another thin wire or rod and rub the wires so that the wires sticks tightly. Finish when the wires are soldered perfectly.

What acid will dissolve solder?

One gram solder samples in the concentration range of 40-63 wt % tin are completely dissolved using nitric and hydrochloric acids.

Does flux remove solder?

The main purpose of using flux however is to remove oxidized metal from the surfaces to be soldered, seal out air thus preventing further oxidation, and by facilitating mixing it improves wetting characteristics of the solder.

Why can’t I get solder to melt?

Try to apply the solder wire to the joint first then introduce the hot tip for just long enough to see the tinned copper track melt the wire – not the iron itself. If the points to be soldered aren’t hot enough (briefly) you will probably get a “dry” joint which is less than bright to the eye.

How is desoldering wire used?

Desoldering braid or desoldering wick is a pre-fluxed copper braid that is used to remove solder allowing components to be replaced and excess solder (e.g., bridging) to be removed.

What is rosin flux?

Rosin (R) flux is a combination of rosin and solvent best suited for clean and easy-to-solder surfaces. Rosin is hard, not conductive, and general corrosion-resistant. Rosin flux residuals may be left on the assembly or removed with a compatible solvent.

Can you melt solder with a hair dryer?

A hair dryer would not be able to produce enough heat to melt the solder and shrink the tubing. We recommend using a heat gun with these Wirefy heat shrink solder & seal connectors.