• https://cdn.exportstart.com/Stick Welding vs. MIG and TIG Welding: Which One Should You Choose?

    Stick Welding vs. MIG and TIG Welding: Which One Should You Choose?

    Stick welding is a process by which you can weld two pieces of metal together. It’s sometimes called “stick” or “rod-in-tube” welding machines. The technique has been around for a long time, and it’s still used in the industry.
  • https://cdn.exportstart.com/welding rod-What are Stick Electrodes?

    welding rod-What are Stick Electrodes?

    The flux coating on the electrodes determines how it will act during the actual welding process. Some of the coating burns and the burnt flux forms smoke and acts as a shield around the welding "pool," to protect it from that air around it. Part of the flux melts and mixes with the wire and then floats the impurities to the surface. These impurities are known as "slag." A finished weld would be brittle and weak if not for the flux. When the welded joint is cooled, the slag can be removed. A chipping hammer and wire brush are used to clean and examine the weld.The metal-arc welding electrodes may be grouped as bare electrodes, light coated electrodes, and shielded arc or heavy coated electrodes. The type used depends on the specific properties required that include: corrosion resistance, ductility, high tensile strength, the type of base metal to be welded; and the position of the weld that is flat, horizontal, vertical, or overhead.
  • https://cdn.exportstart.com/electrodes-Wiring Guidelines

    electrodes-Wiring Guidelines

    Piezoceramic electrodes will be either fired silver or nickel. Silver electrodes are flat white in color while nickel electrodes are grey. Electrical connections are usually made to these electrodes by soldering, but one may also use conductive adhesive, or clips to attach wires. Soldering materials in  our kit are for soldering to nickel electrodes unless specifically requested otherwise. Silver electrodes are not recommended for high electric field DC applications where the silver is likely to migrate and bridge the two electrodes. It is often used in AC applications. Silver used as an electrode is in the form of flakes suspended in a glass frit. It is generally screened onto the ceramic and fired. The glass makes the bond between the ceramic and the silver particles. Silver is soluble in tin and a silver loaded solder should be used to prevent scavenging of silver in the electrode. Nickel has good corrosion resistance and is a good choice for both AC and DC applications. It can usually be soldered to easily with tin/lead solder. Electroless nickel, used for plating piezoceramic, contains phosphor. Sometimes the phosphor content in a plating run can make it hard to solder. Vacuum deposited nickel electrodes are usually very thin, making soldering tricky. Choice of the correct flux (to remove surface oxidation) makes soldering to electrode surfaces easy even under adverse conditions. A wire is attached to the center shim if the element is used in parallel operation. Generally, the center shim layer of a 2-Layer piezoelectric bending elements is either .004” (.1mm) thick brass or stainless steel. Shims are soldered to in the same way as the nickel electrode.



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