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Hard chrome plating. Hard chrome, also known as industrial chrome or engineered chrome, is used to reduce friction, improve durability through abrasion tolerance and wear resistance in general, minimize galling or seizing of parts, expand chemical inertness to include a broader set of conditions (such as oxidation resistance), and bulking ...
Cylinder valves are usually machined from brass and finished with a protective and decorative layer of chrome plating. [2] A metal or plastic dip tube or valve snorkel screwed into the bottom of the valve extends into the cylinder to reduce the risk of liquid or particulate contaminants in the cylinder getting into the gas passages when the ...
Recent revisions of ASTM B633 defer to ASTM F1941 for zinc plating mechanical fasteners, like bolts, nuts, etc. 2019 is the current revision for ASTM B633 (superseded the revision from 2015), which raised required tensile thresholds when confronting hydrogen embrittlement issues and addressed embrittlement concerns in a new appendix.
The coating was further developed as a replacement for hard-chrome plated cylinder bores for Mercury Marine Racing, and Kohler Engines, and as a repair replacement for factory-chromed snowmobiles, dirt bikes, ATVs, watercraft, and automotive V8 liners/bores. Nikasil is short for nickel silicon carbide.
Disadvantages include possibly limited durability on plastic, requiring priming coats, at least two color coats, and allowing adequate cure time. Popular brands include the Japanese import Tamiya. Some beginner's level kits avoid the necessity to paint the model by adding pigments and chrome plating to the plastic.
Plating is a finishing process in which a metal is deposited on a surface. Plating has been done for hundreds of years; it is also critical for modern technology. Plating is used to decorate objects, for corrosion inhibition, to improve solderability, to harden, to improve wearability, to reduce friction, to improve paint adhesion, to alter conductivity, to improve IR reflectivity, for ...