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  2. Solder - Wikipedia

    en.wikipedia.org/wiki/Solder

    When lead-free solder is used in wave soldering, a slightly modified solder pot may be desirable (e.g. titanium liners or impellers) to reduce maintenance cost due to increased tin-scavenging of high-tin solder. Lead-free solder is prohibited in critical applications, such as aerospace, military and medical projects, because joints are likely ...

  3. 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 ...

  4. Soldering - Wikipedia

    en.wikipedia.org/wiki/Soldering

    Additionally, tin is a more corrosive metal, and can eventually lead to the failure of solder baths [clarification needed]. [36] Lead-free construction has also extended to components, pins, and connectors. Most of these pins used copper frames, and either lead, tin, gold or other finishes. Tin finishes are the most popular of lead-free finishes.

  5. Flux (metallurgy) - Wikipedia

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

    For example, tin-lead solder [5] attaches very well to copper metal, but poorly to its oxides, which form quickly at soldering temperatures. By preventing the formation of metal oxides, flux enables the solder to adhere to the clean metal surface, rather than forming beads, as it would on an oxidized surface.

  6. Fusible alloy - Wikipedia

    en.wikipedia.org/wiki/Fusible_alloy

    Combination with lead-tin solder may dramatically lower melting point and lead to joint failure. [10] Low-temperature eutectic solder with high strength. [11] Particularly strong, very brittle. [12] Used extensively in through-hole technology assemblies in IBM mainframe computers where low soldering temperature

  7. Solderability - Wikipedia

    en.wikipedia.org/wiki/Solderability

    Solderability when using lead-free alloys can differ significantly from solderability when using lead based alloys. Noble metals may be easy to solder but they have brittle joints. The metals in the good category require a large amount of heat therefore oxidation is an issue. To overcome this a flux is required.

  8. Dip soldering - Wikipedia

    en.wikipedia.org/wiki/Dip_soldering

    The most common dip soldering operations use zinc-aluminum and tin-lead solders. Solder pot metal: cast iron or steel, electrically heated. Bath temperature: 220 to 260 °C (for binary tin-lead alloys) or 350 to 400 °C (for lead-free alloys) Solder composition: 60% Sn, 40% Pb or eutectic alloy.

  9. Whisker (metallurgy) - Wikipedia

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

    The phenomenon was discovered by telephone companies in the late 1940s and it was later found that the addition of lead to tin solder provided mitigation. [6] The European Restriction of Hazardous Substances Directive (RoHS), which took effect on July 1, 2006, restricted the use of lead in various types of electronic and electrical equipment.

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