#131
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So Long Tubulars?
On Tuesday, July 16, 2019 at 3:54:46 PM UTC+2, Tom Kunich wrote:
On Tuesday, July 16, 2019 at 5:14:55 AM UTC-7, wrote: On Tuesday, July 16, 2019 at 1:19:36 AM UTC+2, John B. wrote: As for Trump, he certainly isn't an idiot as his use of the media during the campaign was masterful. This only 'works' if the recipient end 'cooperates'. Lou Does it make you feel bad that Hillary lost by 2/3rds of the electoral college? Don't care about Hillary, but I'm worried that someone with no social intelligence can be elected president of the USA; probably twice. Please don't reply. Lou |
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#132
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So Long Tubulars?
On Tue, 16 Jul 2019 08:10:14 -0400, Duane
wrote: On 15/07/2019 6:40 p.m., John B. wrote: On Mon, 15 Jul 2019 09:04:22 -0400, Duane wrote: On 15/07/2019 8:57 a.m., AMuzi wrote: MUCH SNIPPED They go from the sharpening service directly to the vapor deposition house. It's titanium nitride of few microns or so about $30 per piece. Beyond that for a higher fee you can buy other even harder coatings now. typical example: http://www.praxairsurfacetechnologie...por-deposition It's more case hardening than plating. Google "Nitriding White Layer" I'm not sure as the original use of the term "case hardening" described the hardening of the outer surface of an object by adding carbon to the parent material, specifically iron or steel, while what Andrew described seems to be the adding of a layer on the surface of the parent material, sort of like galvanizing or even painting. -- cheers, John B. The question was about Nitriding. Not carburizing. As for "adding the layer" it's not adding a layer exactly. Gas Nitriding typically uses ammonia (NH3) heated to the point where it dissociates forcing N2 into the outer layer. Titanium presents some problems that require a thinner layer so lower temperature and is often costly. Note I was replying to the post that said " It's more case hardening than plating. Google "Nitriding White Layer" Saying that case hardening was a process that added carbon to the iron from which an item was made and literally converted the outer layer to steel, i.e. an alloy of iron and carbon. However after reading up on "nitrating" I see that they do describe it as a "case hardening process" so I'll squirm sideways, like some do, and change the subject :-) -- cheers, John B. |
#133
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So Long Tubulars?
On Tue, 16 Jul 2019 05:14:53 -0700 (PDT), wrote:
On Tuesday, July 16, 2019 at 1:19:36 AM UTC+2, John B. wrote: As for Trump, he certainly isn't an idiot as his use of the media during the campaign was masterful. This only 'works' if the recipient end 'cooperates'. Lou But they did. Trump would say something outrageous and get several minutes of TV coverage that evening. He did it over and over so I assume that it must have been deliberate. https://fortune.com/2016/12/09/hilla...aign-spending/ The final FEC report showed the extent of the Trump advertising splurge. The campaign spent nearly $39 million on last-minute TV ads and another $29 million on digital advertising and consulting work done by Parscale's firm. Clinton's campaign placed a far greater emphasis than Trump on television advertising, a more traditional way of reaching swaths of voters. She spent $72 million on TV ads and about $16 million on Internet ads in the final weeks. As the old saying has it. "20 million dollars ain't hay" :-) -- cheers, John B. |
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