What is hot dip galvanizing?
What is hot dip galvanizing?
(OP)
How exactly does hot dip galvanizing work? Can someone please explain me the process. Would appreciate it.
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
What is hot dip galvanizing?
|
RE: What is hot dip galvanizing?
http://en.wikipedia.org/wiki/Hot-dip_galvanizing
http:/
RE: What is hot dip galvanizing?
RE: What is hot dip galvanizing?
RE: What is hot dip galvanizing?
Take a bunch of zinc and melt it down. Add some other chemicals and then dip (hot-dip) the (cleaned) parts in the melted zinc concoction. Pull them out. Let them cool. Looks pretty!!
RE: What is hot dip galvanizing?
Record of zinc usage in construction began in 79 AD, which could be considered the origination of galvanizing. However, the first recorded history of galvanizing dates back to 1742 when a French chemist named P.J. Malouin, in a presentation to the French Royal Academy, described a method of coating iron with molten zinc.
In 1772, Luigi Galvani, galvanizing's namesake, discovered the electrochemical process that takes place between metals during an experiment with frog legs. And in 1801, Alessandro Volta furthered the research on galvanizing when he discovered the electropotential between two metals, creating a corrosion cell.
In 1829, Michael Faraday discovered zinc's sacrificial action during an experiment involving zinc, salt water, and nails. Shortly after, in 1837, French engineer Stanislaus Tranquille Modeste Sorel took out a patent for the early galvanizing process. By 1850, the British galvanizing industry was consuming 10,000 tons of zinc annually for the production of galvanized steel.
The United States, slightly behind, had its first galvanizing plant open in 1870. At the time, the steel was hand dipped in the zinc bath. Today, over 600,000 tons of zinc is consumed annually in North America to produce hot-dip galvanized steel.
http:
RE: What is hot dip galvanizing?
Regardless - she was "hot" and rich!! - dumb as a rock. Guess she didn't catch that gene. But who cares.!!
RE: What is hot dip galvanizing?
Sorry!
Maybe the tyranny of Murphy is the penalty for hubris. - http://xkcd.com/319/
RE: What is hot dip galvanizing?
RE: What is hot dip galvanizing?
RE: What is hot dip galvanizing?
Years ago we had to collect a sample of some wastewater in a 55 gallon drum. The Department of Ecology felt this was a good way to get a representative sample of that particular waste stream. I got a plastic 55 gallon drum and told the guys to cut the top off and pour the waste in that. They decided it would be a lot easier and simpler if they went and got a funnel and just poured the waste in the hole through the funnel. They got a lovely, large, galvanized funnel. The waste stream had some oxidizer and some caustic in it. When the analysis came back it showed the waste stream as being extremely high in lead and zinc. This was rather a surprise to me as we didn't use any lead or zinc.
We finally got it sorted out. But that's what makes me think there is sometimes lead in the hot tip galvanizing process.
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com
Good engineering starts with a Grainger Catalog.