A brazing torch is used to head up metals to a high temperature. This is helpful for welding, molding and construction which uses metals. It can be hand held for a torch.
You use an acetylene torch and special brazing rods.
A suitable source of heat for brazing is typically a torch fueled by a gas such as acetylene, propane, or natural gas. This type of torch provides a high enough temperature to melt the brazing material without melting the base metals being joined.
brazing clints head
Brazing is actually not a method of welding as it does not melt the joint metal together. Brazing is actually much closer to soldering. It is a process that (usually) uses a gas torch and a thin brass rod to bind two (or more) pieces of metal together. The torch heats the joints surface to the melting temperature of brass at which time the brass filler rod is melted into the joint to fuse them together.
You should use solder, not brazing. Brazing is used to join iron or steel products together.
A blow torch can reach temperatures of up to 3,000 degrees Fahrenheit. Its potential applications include soldering, welding, brazing, and heating materials for shaping or bending.
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.
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
the number 3.0 describes the level of shade protection in the glasses. Green safety glasses are worn when you are used to protect your eyes when you are working with metal. Specifically, 3.0 glasses should be use when you are torch brazing, torch soldering, or cutting metal.
brazing clints head
Brazing can be done with a small torch or a big soldering iron. Either electric or brazier heated. The tip on a torch should be small as you don't need the heat you use when gas welding or cutting.
How would the meaning of the excerpt be different if Kennedy had used the word idea instead of torch