... precautions in welding with gas include: a number of one-way safety valves fitted to regulators to prevent gasses which might cause the cylinders to explode from re-entering the pipes. The pipes are colour coded to prevent any confusion between the oxygen (blue) and acetylene (red) pipes. During both processes gloves and a boiler suit should be worn and tongs used to prevent burning of the skin due to extreme temperatures of the metal and from spatter. Goggles should also be worn to stop hot pieces and infrared radiation entering the eyes during the processes using gas. Process Theory Brazing Brazing is a non-fusion type of welding used to fuse dissimilar types of metal together. It joins them by creating a metallurgical bond between the filler metal and the surfaces of the two metals being joined. It uses the combustion of a mixture of oxygen and acetylene (oxyacetylene) = (), which burns at around 2000 ...

See this essay or coursework document in full right now