You should use solder, not brazing. Brazing is used to join iron or steel products together.
You usually do not braze copper, you solder it. If you were to use brazing rod on copper, the copper would have very close to the same melting point as the brazing rod. This makes it difficult to do. As far as preheating the copper, it needs to be hot enough for the brazing to flow.
Brazing isn't welding - it's more like soldering. You use a rod made out of brass for the process of brazing.
To weld brass effectively, you should use a low-temperature brazing technique with a flux to clean the surfaces and ensure a strong bond. Heat the brass pieces evenly and apply the brazing rod to create a secure weld. Practice proper safety measures and ensure good ventilation when working with brass welding.
I am not aware of a cast iron rod for oxy acetylene welding, I am for arc welding, For cast, I use a brazing rod, a brass or copper alloy, but what do I know. If there is a cast rod available, it would be the same process, get the cast you are welding hot almost to the point of melting, bring in the rod, heat it at the same place and bring both to a melting point. Work from that point along the crack or joint you are welding. ----------------------------------------------------------------------------------------------------------------- You need not use brazing rod for case iron welding. You get arc welding electrodes for cast iron. Use appropriate grade of rod for your case iron under welding.
Yes
Copper and tin could be melted and combined as an alloy, They can also be fastened together by some form of brazing, like soldering.
To effectively use brazing to repair a damaged bike frame, follow these steps: Clean the damaged area thoroughly to remove any dirt, grease, or paint. Heat the damaged area with a torch until it reaches the appropriate temperature for the brazing rod to melt. Apply the brazing rod to the joint, allowing it to flow and bond with the metal. Allow the joint to cool and solidify before cleaning off any excess flux. Inspect the repair to ensure it is strong and secure before reassembling the bike.
Copper and brass
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.
no!!! Brass is an alloy of copper and tin; frequently other alloying elements are contained.
because brass is generally tarnish resisant so it does not discolours easily and also because brass is not such expensive as copper <<>> The pins are make of brass because it is a harder metal than copper and will wear better through use over its lifetime.
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.