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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 ...
The 46,000-square-foot (4,300 m 2) facility houses a chrome plating line and four injection molding presses ranging from 165 to 2,200 tons to create parts for coating and testing in the center’s on-site laboratories. The Advanced Development Center is also equipped to produce custom, limited-run parts for concept vehicles. [2] [3]
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to ASTM F1941 for zinc plating mechanical fasteners, like bolts, nuts, etc. 2019 is the current revision for ASTM B633 (superseded the revision from 2015), which raised required tensile thresholds when confronting hydrogen embrittlement issues and addressed embrittlement concerns in a new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.
That same year Autometal Minas (Brazil) was acquired, which was founded as Zanini Industria de Autopeças, Ltda. Іn 1997 and is dedicated to the injection, chrome plating and painting of plastic parts for the automotive sector. Its products include emblems, wheel covers, front grilles, access systems for the fuel tank, spoilers and body moldings.
A #7 finish is produced by polishing with a 280–320 grit belt or wheel and sisal buffing with a cut and color compound. This is a semi-bright finish that will still have some polishing lines, but they will be very dull. Carbon steel and iron are commonly polished to a #7 finish before chrome plating.
Electroless deposition is an important process in the electronic industry for metallization of substrates. Other metallization of substrates also include physical vapor deposition (PVD), chemical vapor deposition (CVD), and electroplating which produce thin metal films but require high temperature, vacuum, and a power source respectively. [20]
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