strong heterogeneous Welding
with copper or silver to make a weld heterogeneous strong base of copper or silver, proceed the same way as with soldering, the molten metal will run between the parts by capillary action. Previously, degrease the parts to be assembled by sanding with fine grit paper, then coat it with a fluid antioxidant.
Torch Cartridge the cartridge torch flame is produced by combustion of a mixture of butane or propane with oxygen from the air. This flame is less potent than bottles acetylene torch (see below), but the temperature generated can reach 700 ° C.
adjustment: the adjustment of the torch cartridge is easy. The strength of the flame varies with the gas flow. The adjustment of oxygen intake allows for a powerful blue flame. One rule to keep in mind: a weak flame and red indicates a lack of oxygen.
Warming: now hot metal: copper, until it turns dark red, iron and steel to be light red. While the tin solder to assemble elements should be kept under the flame, even during the application of welding, the brazing is not.
Aplicació or welding n: near the welding verilla slightly tilted without exposure to flame. Generally, the amount to apply is equal to one and half times the diameter of the tube. When the alloy has been dealt, turn off heat and let cool. Remove the surplus.
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