All About Electroplating | Würth Knowing Episode 8
ฝัง
- เผยแพร่เมื่อ 18 ต.ค. 2024
- Learn more about electroplating, the most common of all fastener finishes, in this episode of Würth Knowing!
Randy and Aaron demonstrate the electroplating process, discuss why hexavalent chromate has largely been replaced by trivalent chromate due to environmental concerns, and how to overcome challenges with corrosion protection when utilizing this fastener finish.
Join Randy Lammers, Technical Instructor, and Aaron Keevan, Quality Engineering Manager, in Randy’s Texas workshop to discover what’s Würth Knowing.
Learn more here: hubs.ly/H0GSy-y0
Sign up to receive bi-weekly email reminders when new episodes air: hubs.ly/H0NZ7KF0
Read our Social Media Disclaimer for TH-cam here: bit.ly/3teW4xK
Visit our website: www.wurthindus...
LinkedIn: / wurth-industry-north-a...
Facebook: / wurthindustry
#WürthKnowing #FastenerEngineering #Electroplating
The zinc chromate conversion is used on carburetors. With changes in chemical restrictions / toxicity / etc. what used on bolts used for years, especially imports in the 70’s, commonly called “Yellow Zinc?” Was this created with the bad stuff?
If I walk into a plating facility on Monday morning, they have examples on wall board for those to point to and pick “Yellow Zinc.”
Question, it this coating durable or does it give up the ghost and simply fade away in a few years on a vehicles engine & body parts? Because buying new “Zinc Yellow Hexavalent” fasteners can take away points if not using OEM parts for that OEM grade at certain vehicle shows with a classic that is 55 years old. Just curious because I want the look, but the toughest finish! A brake booster Zinc Yellow plated adds to the look, but having the “Delco” stamp adds value.
Please comment if the question or request needs more info! Thanks.
DK, ASE master tech since 78
As stated in this episode, fasteners have historically had hexavalent chromate applied over electroplating. This includes clear, blue, olive and yellow. With the concerns with hexavalent, the electroplating industry is moving to trivalent chromate. Unfortunately, the trivalent chromate colors do not change the corrosion resistance like we had with hexavalent. If you want a color such as yellow be aware, it’s just a dye. Many companies are adding top coat sealants over trivalent chromate to assist with scratch resistance and higher corrosion resistances. Reference ASTM F1941 and ISO 4042 for full information on this very important issue.
- Randy
NIce Belts!!!!!!!!
It doesn't get much more Texan than a Texas flag belt buckle!
Love the Grip 6 brand!