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  2. Soldering - Wikipedia

    en.wikipedia.org/wiki/Soldering

    With silver soldering, small pieces of solder wire are placed onto the metal prior to heating. A flux, often made of boric acid and denatured alcohol, is used to keep the metal and solder clean and to prevent the solder from moving before it melts. When silver solder melts, it tends to flow towards the area of greatest heat.

  3. Solder - Wikipedia

    en.wikipedia.org/wiki/Solder

    Solder (UK: / ˈ s ɒ l d ə, ˈ s ə ʊ l d ə /; [1] NA: / ˈ s ɒ d ər /) [2] is a fusible metal alloy used to create a permanent bond between metal workpieces. Solder is melted in order to wet the parts of the joint, where it adheres to and connects the pieces after cooling.

  4. Solderability - Wikipedia

    en.wikipedia.org/wiki/Solderability

    Both quantitative and qualitative tests for solderability exist. [6] The two most common testing methods are the 'dip and look' method and wetting balance analysis.In both of these tests, the soldered pieces undergo an accelerated aging process before being tested for solderability, to take into consideration the time a component was in storage prior to mounting to final assembly.

  5. 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.

  6. Tin-silver-copper - Wikipedia

    en.wikipedia.org/wiki/Tin-silver-copper

    Tin-silver-copper (Sn-Ag-Cu, also known as SAC), is a lead-free alloy commonly used for electronic solder. It is the main choice for lead-free surface-mount technology (SMT) assembly in the industry, [ 1 ] as it is near eutectic , with adequate thermal fatigue properties, strength, and wettability. [ 2 ]

  7. Sterling silver - Wikipedia

    en.wikipedia.org/wiki/Sterling_silver

    Sterling silver is an alloy composed by weight of 92.5% silver and 7.5% other metals, ... meaning 'strong' or ... sealing the gaps with a solder of 80 wt% silver and ...

  8. How to Spot The Best Vintage Jewelry in Thrift Stores ... - AOL

    www.aol.com/spot-best-vintage-jewelry-thrift...

    For example, 10k, 14k, and 18k mean 10-carat, 14-carat, and 18-carat gold, and 925 indicates sterling silver. You may also see a maker’s mark, which provides information on who made the piece ...

  9. Whisker (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Whisker_(metallurgy)

    Silver whiskers growing out of surface-mount resistors Metal whiskering is a phenomenon that occurs in electrical devices when metals form long whisker-like projections over time. Tin whiskers were noticed and documented in the vacuum tube era of electronics early in the 20th century in equipment that used pure, or almost pure, tin solder in ...