After the gold plating process of the pins or jacks of the connector connectors is completed, the thickness of the outer surface of the plated parts has reached or exceeded the specified thickness value, but the plating of the inner holes of the wire bonding holes or jacks is still too thin or even has no gold layer. . There are various reasons for this problem, generally speaking, there are four common reasons.
One: In order to ensure that the jack of the connector has a certain elasticity when the jack is inserted and removed, most types of jacks are designed with a slit in the mouth during product design. During the electroplating process, the plated parts are constantly flipped, and some jacks are inserted into each other at the opening, so that the power lines at the plug-in parts are shielded from each other, which makes it difficult to electroplating in the jacks.
2: If the outer diameter of the pin of the connector is slightly smaller than the diameter of the wire hole in the design of the connector, some pins will be connected end to end during the electroplating process, resulting in no gold plating in the wire hole. . These two phenomena are more likely to occur when vibrating gold plating.
Three: When the connector is designed, if the blind hole diameter of its structure is less than 1 mm or even less than 0.5 mm, it is difficult for the plating solution to flow into the hole, and the plating solution flowing into the hole is difficult to flow out, which leads to It is difficult to guarantee the quality of gold plating in the hole.
Four: gold plating solution aging.
Generally speaking, for the problem of poor gold plating, it is mainly to improve the structural design and raw materials. If you find that the cooperative connector manufacturer often has poor gold plating during the procurement process, you can choose to directly replace the partner. Connector manufacturer TXGA is a professional connector manufacturer, with quality control, full inspection of shipments, sufficient inventory, and complete models. If you need high-quality connectors, please enter the [Product Center] online purchase.
