First the pipe and cap must be dry. There can be no water the pipe that will be close enough to the joint to feel the heat.
You will need Soldering Flux, Solder, Emory Paper and a hot Torch. Turbo Torch is a good one, if you use MAPP Gas.
Sand the pipe with the Emory Cloth until it is clean and shiny all the way around. (The width of the cloth is fine.) Sand the Cap the same way. Put Flux on the copper pipe and inside the cap. Put the Cap on the pipe, push it all the way down.
Take the torch and heat the cap on it's side in one spot while holding the Solder on the opposite side at the point where the bottom of the cap and the pipe meet. When the joint is hot enough the solder will melt and start to draw into the joint. After a few more seconds remove the heat and melt solder all the way around the joint in one quick motion. You can wipe the joint with a rag if you like to make it look better before the solder hardens. Don't use Nylon or any other cloth that might melt.
Corrosion implies that the material of the pipe has already been removed, if it continues the pipe will eventually disintegrate. Therefore you can not remove "corrosion", you can only replace the pipework with new copper.You can however add chemical to prevent corrosion from happening in the first place, ot stop its progress.
With a propane torch. Heat the cap and remove all the solder and pull off the cap.
A copper pipe is a conductor :) x
Copper turns green after a while because of weathering and corrosion. It is in general the Oxygen in our atmosphere that bonds with the copper, forming a protective layer of "green" oxydation or corrosion. Further information: Many buildings have copper-roofs. It is a metal that is easy to cut and form. It is also highly corrosion resistant because the corrosion formed also protects it from further corrosion. Acid rain however is able to wash away part of the corrosion formed. This mean that in highly polluted areas, Copper is not such a good choice. The Statue of Liberty used to be the iconic copper color.
If the water's pH is more acidic (lower pH) then the effects of copper corrosion will be faster and more pronounce. If the water is less acidic (Higher pH) copper corrosion will take longer and be less pronounce.
Corrosion resistance and electrical conductivity. and its metal
Generally more than 99 %.
the green sludge is the result of copper pipe corrosion. it's a copper oxide
Any metal that is higher than iron in the electrochemical series coupled to it will speed up the corrosion. As an example, a copper pipe in contact with steel will accelerate the corrosion of the steel.
It depends on the condition of the pipe. Corrosion could cause a leak.
Corrosion or the coper item resulting in holes or structurally weakened copper. It turns very green; like the statue of liberty which is also made of copper. It should be cleaned with acid to remove corrosion.
The copper pipe is reacting with metallic elements in the ground which in turn creates oxidation in the copper, which causes corrosion, which leads to holes in the copper pipe.
Electrolysis created from two dissimilar metals touching each other. This creates corrosion and breakdown of the properties of the copper pipe. Replace the copper and place some type of sleeving around the pipe when reinstalling.
Either cut it out on the pipe with copper cutters or sweat it out with a plumbing torch.
The most common problem I encounter is copper pipe corrosion. A close second is worn seats in taps.
Sand it lightly with very fine sandpaper
yes. Copper to Galvanized must have a dielectric fitting to avoid a galvanic reaction causing corrosion and eventual leaks.
No, brass cannot be used as a dielectric union between copper and black iron pipe. Dielectric unions are typically made of materials that are not electrically conductive, such as plastic or rubber. Brass is a conductive material and would not provide insulation against galvanic corrosion between copper and black iron pipe.
corrosion