The material and process of electroplating of electronic connector
contacts is an important part of determining the quality of the
connector. Because the plating not only protects the base metal of the
contact from corrosion, but also optimizes the mechanical and electrical
properties of the connector. Although most electrical connector contact
shrapnels are made of copper alloys that are susceptible to
environmental corrosion such as oxidation and sulfide, after
electroplating, the plating can completely seal the copper alloy to
avoid contact with the environment, thereby protecting the contacts.
Common coating treatment processes include electroplating, spraying, and hot dipping.
Electroplating
is a process that uses electrolysis to attach a metal film to the
surface of a metal or other material to prevent metal oxidation. The
electroplating of the connector contacts usually includes: full
electroplating, partial electroplating, and double electroplating. Full
electroplating means that the plating layer completely covers the
contact surface. Tin contacts are usually fully plated. For noble metal
contacts, partial plating or double plating is generally used for cost
considerations.
Sputtering refers to the mechanical bonding of
two metal contact surfaces under high pressure. There are usually three
methods: complete spraying, selective spraying and mosaic spraying.
Among them, the complete sputtering completely covers the underlying
metal. The selective spraying only selectively covers a part of the
underlying metal surface. Inlay sputtering is a special case of cladding
metal, and its contact plating material is selectively sputtered on the
underlying metal with grooves.
Hot dip treatment is abbreviated
as hot plating. It only needs to completely melt the coating material,
and then immerse the body to be coated into the coating material.
Connector contacts are usually only tinned by hot-dip plating.
In
practical applications, the coating must have the advantages of high
current conductivity, good abrasion resistance, low contact resistance,
and good adhesion to the base material. At the same time, the price of
craftsmanship and materials must also be considered. How to choose a
suitable and reasonable connector plating process? TXGA is a leader
among domestic connector manufacturers and can provide you with
professional, convenient and flexible connector procurement consulting
services. You only need to put forward the final application
requirements and budget, TXGA can provide a complete one-stop solution
to help your product development. Enter TXGA [Product Center] to learn
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