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| Underwater Welding - How to Use the Underwater Arc http://choxaydung.vn/forum/viewtopic.php?f=7&t=47162 |
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| Người gửi: | aedanhall [ Thứ 4 02/09/20 18:01 ] |
| Tiêu đề bài viết: | Underwater Welding - How to Use the Underwater Arc |
Submersible arc welding (SAW) is the most popular welded arc process today. The first patent for this type of welding was issued in 1935 by an American, Arthur T. Miller. This article looks at submersible arc welding and the benefits of this welding technique. In submerged arc welding, an electrode, known as the filler rod, is immersed in a liquid to create an arc. The filler rod is then guided into the molten metal at a specific angle. The electrode is held at the correct angle due to the help of a metal guide that is placed inside the welding chamber. The weld is formed between the rod and the metal. This technique is often used for forming thin sheets of metal. It is also used to join metals together with the addition of filler rods. During this type of weld, the molten metal flows from the electrode through a liquid and then travels down the filler rod and into the chamber below. If you are welding over a hot surface, this can cause a flame to ignite the metal in the chamber. It is best to use a gas torch with a high temperature for this technique. Also, make sure that the metal being welded is pure tin or lead because if it contains lead, the flame could easily ignite it. |
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