What is electroplating? Simply ♠€speaking, electroplating is the p→✘rocess of depositing me↕↔tal or alloy on the s£♠urface of a workpiecוβe by electrolysis under the a✔≠ction of direct curren•★αt to form a uniform, comp₽★§act and well-bonded met<©≥§al surface. Purpose of P'→₩¥IN Needle Electroplating φ'₹∑for Connectors 1, beautiful A®✘fter electroplating, ∏♠±♦metals usually have a brighte' ¶"r appearance than mater♥£☆<ials. 2. Anti-corrosion Usual ​'ly raw materials such as copper and₩" iron are easily oxidized in the<♣✔> air. The corrosion resis•≈←αtance can be improved by®≥§ electroplating a layer←✔ of metal with strong ↓±oxidation resistance. 3. Stronαλεg electroplating adhesion (e.g. copp>☆Ω"er) For metals with p‌<oor adhesion, copper substrates are uλ✔sually used to enhance adh​€esion before plating.♠∏✔λ 4. Enhance conductivity★£≤ (e.g. gold, silver) The e←®₽lectrical conductivity of raw mat↔‌≠"erials such as iron, phosphor✘•βπus and copper is usually b¥®elow 20%. Connectors with→" low impedance requirements can not ♦ meet the requirements. Therefore, ¶↕the electrical impedance of high co₽‍♠£nductivity metals such ↓♥φas gold plating on t©↕he surface can be reduced. 5. Imp₹ rove solderability (e.g. tin, gold,₩" etc.) Because of the poor ad"∏₽δhesion of raw materials to t¶✘λin, the solderabilityδ±✔♠ of parts can be improved by plating t÷$‍←in and other substances with a certa∑$•€in thickness on the su↓₹☆rface. Generally speaking, PIN needle ✘λplating of connectors is to improve ₹↔™ the hardness and wear resistε☆ance of connectors to meet their‍σ  specific functions and life.