{"id":407,"date":"2026-01-30T02:25:38","date_gmt":"2026-01-30T02:25:38","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?post_type=process&p=407"},"modified":"2026-01-30T02:25:38","modified_gmt":"2026-01-30T02:25:38","slug":"plating","status":"publish","type":"process","link":"https:\/\/www.jccncmachining.com\/de\/capabilities\/plating\/","title":{"rendered":"Plating"},"content":{"rendered":"

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Key Specifications<\/h3>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nTechnical Range<\/th>\nNote<\/th>\n<\/tr>\n<\/thead>\n
Max Part Size<\/strong><\/td>\n1500 mm x 800 mm x 800 mm<\/td>\nTank size dependent<\/td>\n<\/tr>\n
Standard Materials<\/strong><\/td>\nSteel, Brass, Copper, Aluminum<\/td>\nAl requires Zincate pre-treatment<\/td>\n<\/tr>\n
Zinc Plating Thickness<\/strong><\/td>\n5 – 25 \u00b5m (0.0002″ – 0.001″)<\/td>\nSacrificial corrosion protection<\/td>\n<\/tr>\n
Nickel Thickness<\/strong><\/td>\n2 – 50 \u00b5m<\/td>\nElectroless is most uniform<\/td>\n<\/tr>\n
Chrome Thickness<\/strong><\/td>\n0.5 \u00b5m (Decorative) to 250 \u00b5m (Hard)<\/td>\nHard chrome for wear resistance<\/td>\n<\/tr>\n
Salt Spray Test<\/strong><\/td>\n24 hrs to 500+ hrs<\/td>\nDepends on chromate seal (Clear\/Yellow)<\/td>\n<\/tr>\n
Standard Lead Time<\/strong><\/td>\n3 – 5 Days<\/td>\nBatch processing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Common Plating Types<\/h3>\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nDescription<\/th>\nKey Benefits & Applications<\/th>\n<\/tr>\n<\/thead>\n
Zinc Plating<\/strong><\/td>\nThe standard for protecting steel from rust. Available with colored chromate conversions: Clear (Blue), Yellow (Iridescent), and Black.<\/td>\nBenefit:<\/strong> Cost-effective sacrificial protection (rusts before the steel does).
\nApp:<\/strong> Bolts, nuts, automotive brackets, chassis parts.<\/td>\n<\/tr>\n
Electroless Nickel (EN)<\/strong><\/td>\nDeposits nickel-phosphorus alloy chemically without electricity. Ensures perfectly uniform thickness even in deep holes.<\/td>\nBenefit:<\/strong> Uniformity on complex shapes, high hardness, excellent corrosion resistance.
\nApp:<\/strong> Precision gears, mold cavities, medical tools.<\/td>\n<\/tr>\n
Electro-Nickel<\/strong><\/td>\nUses current to deposit nickel. Tends to build up on corners (“dog-boning”). Brighter appearance than EN.<\/td>\nBenefit:<\/strong> High cosmetic brightness, magnetic.
\nApp:<\/strong> Decorative fittings, base layer for chrome.<\/td>\n<\/tr>\n
Hard Chrome<\/strong><\/td>\nThick deposition of chromium for wear resistance. Not to be confused with decorative chrome (bumpers).<\/td>\nBenefit:<\/strong> Extremely low friction, high hardness (65-70 HRC).
\nApp:<\/strong> Hydraulic cylinder rods, piston rings, rollers.<\/td>\n<\/tr>\n
Gold \/ Silver<\/strong><\/td>\nPrecious metal plating for function rather than cost.<\/td>\nBenefit:<\/strong> Superior electrical conductivity and solderability.
\nApp:<\/strong> Electrical contacts, connectors, RF components.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

\n

Design Guidelines for Plating<\/h3>\n

Dimensional Growth:<\/strong>
\nPlating adds material to the surface. For precision parts, this must be accounted for. Electroless Nickel<\/strong> is preferred for tight tolerances because it plates evenly (1:1 ratio), whereas Electroplating<\/strong> builds up on sharp external corners and thins out in internal corners.<\/p>\n

Drainage Holes:<\/strong>
\nPlating involves dipping parts into liquid tanks. Designs must include drainage holes to prevent liquid from getting trapped in blind pockets, which can cause contamination or “drag-out.”<\/p>\n

Surface Defects:<\/strong>
\nPlating does not<\/strong> hide surface defects; it highlights them. A scratch on the raw metal will be even more visible after shiny Nickel or Chrome plating. Parts should be polished prior to plating for a cosmetic finish.<\/p>\n

Thread Fitment:<\/strong>
\nPlating will change the pitch diameter of threads. For thick plating (like Hard Chrome or thick Zinc), threads may need to be machined slightly undersized or re-tapped (chased) after plating.<\/p>\n<\/div>\n

<\/p>\n

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Industry Applications<\/h3>\n

Automotive Industry<\/strong>
\nZinc-Nickel plating is standard for under-hood components to withstand high heat and salt spray corrosion tests (1000 hours).<\/p>\n

Electronics<\/strong>
\nGold plating is essential for PCB contacts and USB connectors to ensure reliable data transmission without oxidation.<\/p>\n

Oil & Gas<\/strong>
\nElectroless Nickel is widely used on valves and pumps to protect carbon steel components from harsh chemical environments.<\/p>\n

Industrial Machinery<\/strong>
\nHard Chrome is applied to shafts and linear guides to reduce friction and prevent wear over millions of cycles.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Plating is a surface covering process where a metal is deposited onto a conductive surface. Unlike anodizing (which is an oxide conversion), plating adds a new layer of material. It is essential for providing corrosion resistance (sacrificial protection), improving wear resistance, enhancing electrical conductivity, or simply for decoration.<\/p>\n

At Jucheng Precision, we manage a robust supply chain of certified plating partners to offer a wide array of finishes including Zinc, Nickel, Chrome, Silver, and Gold. We ensure all plating processes meet environmental regulations (RoHS\/REACH) and specific industrial standards like ASTM B633 (Zinc) and ASTM B733 (Electroless Nickel). Whether for automotive brackets or high-conductivity electrical contacts, we deliver parts with uniform coverage and strong adhesion.<\/p>","protected":false},"featured_media":408,"template":"","process_category":[38],"class_list":["post-407","process","type-process","status-publish","has-post-thumbnail","hentry","process_category-surface-finishes"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/de\/wp-json\/wp\/v2\/process\/407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/de\/wp-json\/wp\/v2\/process"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/de\/wp-json\/wp\/v2\/types\/process"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/de\/wp-json\/wp\/v2\/media\/408"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/de\/wp-json\/wp\/v2\/media?parent=407"}],"wp:term":[{"taxonomy":"process_category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/de\/wp-json\/wp\/v2\/process_category?post=407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}