Tin Plating


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Tin Plating

 

a layer of tin applied to the surface of metal objects, including radio components and cookware, to protect against oxidation. The process is usually accomplished by immersing the object in a bath of molten tin or by an electrolytic method (seeELECTROPLATING TECHNOLOGY). In tin plating used to coat cookware and similar items, the content of undesirable impurities (Pb, As) must be minimal. For cookware, the amounts tolerated are usually < 0.25 percent Pb (by weight) and ≤0.015 percent As; for food cans, ≤0.025 percent Pb and ≤ 0.01 As.

References in periodicals archive ?
The phenomenon in which a single crystal of tin extends from the plating surface (whisker) takes place in tin plating.
Matte tin plating can withstand the elevated temperatures and the long dwell times required for lead-free reflow soldering.
Matte tin plating is a process that can be used for several types of components, including those in the semiconductor industry.
This year, Samtec began shipping matte tin as standard plating on most connectors with tin plating.
In the middle of the change, Schmidt is instrumental in developing the new finishes for the components and has extensive experience with matte tin plating.
He also provides information on the specifications involved with matte tin plating as it relates to bright tin plating.
Len Vermillion: What is the difference between matte tin plating and bright tin plating?
LV: What makes matte tin plating more suitable to meeting the WEEE and RoHS directives?
The co-deposited additives required for bright tin plating systems are boiled off as the tin is melted (reflowed) and will cause voids and discoloration.