one of the method is manually dipping the filler rod in a canister of loose flux as the weld proceeds
When Brazing copper to copper flux is normally not needed When brazing steel or copper based alloys then the flux is used to help the wetting action (Better flow of the brazing alloy) and to prevent oxidation A typical rod would be Union Carbide 25 M or check out the AWS booklet
It is closer too soldering, just more heat, tin/sliver instead of solder and brazing flux instead solder flux. More like welding as far as strength is concerned. It is very strong and is used on larger diameter pipes. however application is the same as soldering
Flux is used to keep metals from oxidizing. Solder will not bond well with copper-oxides which are formed when copper is exposed to high temperatures (ie a soldering iron) the flux prevents the oxidation. If you were to solder without flux the solder joint would be weak and possibly completely nonconductive.
brazing clints head
You should use solder, not brazing. Brazing is used to join iron or steel products together.
Common methods used for bike frame repair include welding, brazing, and bonding. Welding involves melting metal to join pieces together, brazing uses a lower temperature to join metal with a filler material, and bonding uses adhesives to connect parts. These methods can help fix cracks, dents, or other damage to a bike frame.
brazing is joining of two metals by using filler metals.to melts the filler rods only which temperature is above the melting point (>450c).initially flux metal is used to avoid the oxidation ....this process is very strongly than soldering method ...weaker than welding method..
It is generally called a flux or cleansing agent. Sometimes contained in electrode coatings and found in powdered form to use in the Oxy-fuel welding process. Primary ingredient is Borax ( yah same as in some hand cleaners). Often mixed with water to form a paste that can be applied by a brush to both the welding/brazing rod and also the base metal.
Common gases used in brazing include acetylene, propane, natural gas, and hydrogen. These gases are typically used in combination with oxygen to produce a flame with the appropriate temperature for brazing different materials.
It is used to clean impurities away from the surface to be soldered or brazed. Many times it is included in the flux. The use of acid type of fluxes is actually detrimental to good plumbing , soldering practices because if the flux is not properly cleaned the joint will eat away from the corrosive action of the acid
brazing clints head
Brazing and soldering are both methods used to join copper pipes, but they differ in the temperatures at which they are performed. Brazing involves higher temperatures and the use of a filler metal with a melting point above 840F, while soldering is done at lower temperatures using a filler metal with a melting point below 840F. Brazing creates a stronger bond than soldering, making it more suitable for high-pressure applications.