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2. Soldering gun - Wikipedia

   en.wikipedia.org/wiki/Soldering_gun

   A 1948 advertisement for a Weller soldering gun. Pistol-grip electrically-heated soldering tools had been used since the 1920s. In 1941 Carl E. Weller invented and later obtained U.S. patent 2,405,866 [1] for a transformer-based soldering tool which heated and cooled rapidly, [2] essentially as described in this article. Weller formed a company ...

3. Wave soldering - Wikipedia

   en.wikipedia.org/wiki/Wave_soldering

   The Restriction of Hazardous Substances Directive (RoHS) has led to an ongoing transition away from 'traditional' leaded solder in modern manufacturing in favor of lead-free alternatives. Both tin-silver-copper and tin-copper-nickel alloys are commonly used, with one common alloy (SN100C) being 99.25% tin, 0.7% copper, 0.05% nickel and <0.01% ...

4. Solder alloys - Wikipedia

   en.wikipedia.org/wiki/Solder_alloys

   Soldering copper pipes using a propane torch and a lead-free solder. Solder is a metallic material that is used to connect metal workpieces. The choice of specific solder alloys depends on their melting point, chemical reactivity, mechanical properties, toxicity, and other properties. Hence a wide range of solder alloys exist, and only major ...

5. ASARCO - Wikipedia

   en.wikipedia.org/wiki/Asarco

   ASARCO's smelting plant in El Paso, Texas, was suspended in 1999 and then demolished on April 13, 2013. Before closing, the plant produced 1,000,000,000 pounds (450,000,000 kg) of anodes each year. Refining at the mines as well as at a copper refinery in Amarillo, Texas , produce 375,000,000 pounds (170,000,000 kg) of refined copper each year.

6. Texas extreme winter cold could challenge power grid in early ...

   www.aol.com/news/texas-extreme-winter-cold-could...

   This winter is forecast to bring sudden bouts of extreme cold to Texas that could test the state's electric grid in early 2025, the grid operator's chief meteorologist said on Tuesday, reviving ...

7. Soldering - Wikipedia

   en.wikipedia.org/wiki/Soldering

   A soldering copper is a tool with a large copper head and a long handle which is heated with a small direct flame and used to apply heat to sheet metal such as tin plated steel for soldering. Typical soldering coppers have heads weighing between one and four pounds.