10 21 16 Metal Finishing - Quickly and Easily Electroless Nickel Plating Rust Proofing скачать в хорошем качестве

10 21 16 Metal Finishing - Quickly and Easily Electroless Nickel Plating Rust Proofing

   • 4 5 25 Sakura Cherry-blossom viewing Shaku...      • 9 3 24 "Deadly Poison" I bought New High Q...      • 1 1 24 Happy New Year - Cheep dinner of we...      • 12 29 23 Must-see Deep spot Marginal villa...      • 9 9 23 Individually Wrapped Dried Fruit TO...      • 8 20 23 I feel sorry.…　Underpopulated area...      • 8 5 23 Walk around the Ikouzan Houmyouji T...      • 4 2 20 Metal Finishing - Quickly and Easil...      • 2 22 17 Metal Finishing - Hot Black Oxide ...      • 12 22 16 Metal Finishing - Quickly and Eas...      • 12 22 16 Metal Finishing - Quickly and Eas...      • 4 21 16 Metal Finishing - Hot Black Oxide ...   #rustproofing Electroless nickel plating (EN) is an auto-catalytic chemical technique used to deposit a layer of nickel-phosphorus or nickel-boronalloy on a solid workpiece, such as metal orplastic. The process relies on the presence of a reducing agent, for example hydratedsodium hypophosphite (NaPO2H2·H2O) which reacts with the metal ions to deposit metal. The alloys with different percentage of phosphorus, ranging from 2-5 (low phosphorus) to up to 11-14 (high phosphorus) are possible. The metallurgical properties of alloys depend on the percentage of phosphorus. Electroless nickel plating is an auto-catalytic reaction used to deposit a coating of nickel on a substrate. Unlike electroplating, it is not necessary to pass an electric current through the solution to form a deposit. This plating technique is to prevent corrosion and wear. EN techniques can also be used to manufacture composite coatings by suspending powder in the bath. Electroless nickel plating has several advantages versus electroplating. Free from flux-density and power supply issues, it provides an even deposit regardless of workpiece geometry, and with the proper pre-plate catalyst, can deposit on non-conductive surfaces.