{"id":50132,"date":"2019-07-25T00:00:00","date_gmt":"2019-07-24T22:00:00","guid":{"rendered":"https:\/\/at3w.com\/blog\/differences-between-exothermic-welding-and-brazing\/"},"modified":"2019-07-25T00:00:00","modified_gmt":"2019-07-24T22:00:00","slug":"differences-between-exothermic-welding-and-brazing","status":"publish","type":"post","link":"https:\/\/at3w.com\/en\/blog\/differences-between-exothermic-welding-and-brazing\/","title":{"rendered":"Differences between Exothermic welding and Brazing"},"content":{"rendered":"

\n\tBoth exothermic welding and brazing are different methods of bonding one or more pieces of metallic conductors used in earthing systems. There are different types of welding and different forms to classify them. One of these forms is to distinguish if the pieces to be welded are actually melted or not when adding the compound material.<\/p>\n

\n\tBrazing<\/strong> is a welding process in which the conductors to be welded are not melted, instead they are heated up to a very high temperature in order to then add the compound material.<\/span><\/p>\n

\n\tDuring the bonding process, the compound material is melted by applying a source of heat using a highly volatile mixture of gases, usually oxygen-acetylene. This compound material is spread by capillarity with the materials to be welded. After the conductors cool down, the required bond of the conductors is achieved.<\/p>\n

\n\tThis type of bond is only used to join tape conductors and brings about a number of occupational risks that need to be considered.<\/p>\n

\n\tExothermic welding<\/strong> implies an actual fusion of the materials to be bonded. In this case, the compound material is cast copper, which melts the conductors involved in the bond.<\/p>\n

\n\t\"Differences<\/p>\n

\n\tDifferences and advantages of Brazing and Exothermic welding from Aplicaciones Tecnológicas<\/h2>\n

\n\tUsing this method, a perfect molecular bonding of the conductors is achieved and therefore the electrical proprieties of the conductors at the bond point are improved.<\/p>\n

\n\tThe first difference in favour of exothermic welding comes directly from the electrical properties obtained in the connection.<\/strong><\/p>\n

\n\tThe second advantage is related to the equipment needed. For brazing, we need a powerful energy source, that is a welding torch.<\/p>\n

\n\tApart from the energy consumption needed for the bond, the torch itself uses flammable materials such as acetylene (most commonly used) or combustion gases such as propane. These gases are mixed with oxygen, which means that an even higher risk is imposed. The usage of these gases gives way to a high probability in the risk of fire, explosion or certain dangers arising from its usage, transportation and storage, as reported by the Health and Safety Executive (HSE) in the United Kingdom:<\/p>\n