OT: Chrome plated brass shaft (blender)
Joerg
Mfg said too bad, it's just out of warranty. Bought another one, of
course from a different brand. Margaritas are back :-)
Took the old one apart and couldn't believe it: It looks like they
chrome-plated the brass shaft, chrome flaked off in some areas and then
it seized. Has anyone seen that? Is chrome-plating a shaft that becomes
part of a fast-spinning bearing kosher? In the ME classes that I
(clandestinely) attended back at the university that "technology"
certainly was not taught.
--
Regards, Joerg
http://www.analogconsultants.com/
"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
Tim Wescott
> Ok, the shaft of a Hamilton Beach blender seized. No more margarita :-(
> Mfg said too bad, it's just out of warranty. Bought another one, of
> course from a different brand. Margaritas are back :-)
>
> Took the old one apart and couldn't believe it: It looks like they
> chrome-plated the brass shaft, chrome flaked off in some areas and then
> it seized. Has anyone seen that? Is chrome-plating a shaft that becomes
> part of a fast-spinning bearing kosher? In the ME classes that I
> (clandestinely) attended back at the university that "technology"
> certainly was not taught.
>
Hard-chroming bearing journals on crank shafts is fairly common, either
to bring the journal up to size to match the bearing, or on a new part
for friction and wear control. Chrome has a very low surface energy
(think of it as metallic Teflon), and hard chrome can be very durable.
But getting chrome plating right requires that you get _all_ your ducks
in a row. Chances are they had a bad day in the plating shop, or they
sought to trim some cost out of that process in the plating shop.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
Martin Griffith
<notthis...@removethispacbell.net> wrote:
>Ok, the shaft of a Hamilton Beach blender seized. No more margarita :-(
>Mfg said too bad, it's just out of warranty. Bought another one, of
>course from a different brand. Margaritas are back :-)
>
>Took the old one apart and couldn't believe it: It looks like they
>chrome-plated the brass shaft, chrome flaked off in some areas and then
>it seized. Has anyone seen that? Is chrome-plating a shaft that becomes
>part of a fast-spinning bearing kosher? In the ME classes that I
>(clandestinely) attended back at the university that "technology"
>certainly was not taught.
http://sherline.com/lathes.htm
martin
Joerg
> Joerg wrote:
>> Ok, the shaft of a Hamilton Beach blender seized. No more margarita
>> :-( Mfg said too bad, it's just out of warranty. Bought another one,
>> of course from a different brand. Margaritas are back :-)
>>
>> Took the old one apart and couldn't believe it: It looks like they
>> chrome-plated the brass shaft, chrome flaked off in some areas and
>> then it seized. Has anyone seen that? Is chrome-plating a shaft that
>> becomes part of a fast-spinning bearing kosher? In the ME classes that
>> I (clandestinely) attended back at the university that "technology"
>> certainly was not taught.
>>
> Hard-chroming various parts to make bearings is not uncommon.
> Hard-chroming bearing journals on crank shafts is fairly common, either
> to bring the journal up to size to match the bearing, or on a new part
> for friction and wear control. Chrome has a very low surface energy
> (think of it as metallic Teflon), and hard chrome can be very durable.
>
> But getting chrome plating right requires that you get _all_ your ducks
> in a row. Chances are they had a bad day in the plating shop, or they
> sought to trim some cost out of that process in the plating shop.
>
Interesting, didn't know they used chroming. So I guess we'll just chuck
the whole thing then.
Joerg
I know, I know. Don't make me drool here ;-)
My wife won't let me buy a lathe just to fix the blender. It'll go into
the trash, we don't trust that brand anymore.
Alan Peake
Tim Wescott wrote:
> Hard-chroming various parts to make bearings is not uncommon.
I though hard-chroming was a different process to the shiny chrome seen
on motor cars etc. Sounds like the latter was what Joerg had.
Alan
Tim Wescott
> Martin Griffith wrote:
>> On Sat, 19 Jul 2008 14:16:52 -0700, in sci.electronics.design Joerg
>> <notthis...@removethispacbell.net> wrote:
>>
>>> Ok, the shaft of a Hamilton Beach blender seized. No more margarita
>>> :-( Mfg said too bad, it's just out of warranty. Bought another one,
>>> of course from a different brand. Margaritas are back :-)
>>>
>>> Took the old one apart and couldn't believe it: It looks like they
>>> chrome-plated the brass shaft, chrome flaked off in some areas and
>>> then it seized. Has anyone seen that? Is chrome-plating a shaft that
>>> becomes part of a fast-spinning bearing kosher? In the ME classes
>>> that I (clandestinely) attended back at the university that
>>> "technology" certainly was not taught.
>>
>>
>> http://sherline.com/lathes.htm
>>
>
> I know, I know. Don't make me drool here ;-)
>
> My wife won't let me buy a lathe just to fix the blender. It'll go into
> the trash, we don't trust that brand anymore.
>
You buy the lathe because you _want_ the lathe. Then you fix the
blender because you _want_ to fix the blender.
Sensible economics has nothing to do with it.
Tim Wescott
know how different the end product looks, although chromed car parts are
shiny because they've been carefully polished -- unpolished chrome isn't
much to write home about.
Jeff Liebermann
<notthis...@removethispacbell.net> wrote:
>Ok, the shaft of a Hamilton Beach blender seized. No more margarita :-(
>Mfg said too bad, it's just out of warranty. Bought another one, of
>course from a different brand. Margaritas are back :-)
>
>Took the old one apart and couldn't believe it: It looks like they
>chrome-plated the brass shaft, chrome flaked off in some areas and then
>it seized. Has anyone seen that? Is chrome-plating a shaft that becomes
>part of a fast-spinning bearing kosher? In the ME classes that I
>(clandestinely) attended back at the university that "technology"
>certainly was not taught.
After 9.5 years designing marine radios, I learned a few things about
corrosion and material science.
I'll assume that the brass base metal was visibly corroded. Thin
chrome plating tends to be porous and full of cracks. Acids get into
the cracks and corrodes the base metal. The usual fix is a thin
nickel plating, and then a hard chrome layer over that. Another way
is hard chrome with more than about 50 microns plating thickness,
which is usually (no guarantee) thick enough to not have the cracks go
all the way down to the base metal.
My guess(tm) is that you won't find any nickel plating and that the
chrome is the comparatively thin "decorative chrome" or more
accurately "thin dense chrome". The thin stuff runs about 5 microns
plating and will rot out fairly quickly. However, it has the huge
advantage of not requiring the secondary finishing of nickel plus hard
chrome.
If you're seeing large flakes of chrome plating, then it was probably
just a lousy plating job. You may also have an overheating problem,
where the differences in coefficients of thermal expansion between the
brass and chromium plating, is sufficiently different to cause the
rather brittle chrome to break off. Digging....
<http://www.engineeringtoolbox.com/thermal-expansion-metals-d_859.html>
brass = 11.2, chromium = 3.3 Yeah, it's possible.
You can aggravate the problem by mixing highly acidic foods in the
blender. These will cause the cracks to enlarge which will eventually
hit base metal. I suggest you abandon the kitchen chemistry
experiments and use a proper chemistry mixer, vortex mixer, magnetic
stirring suppository, or vibro shake rattle and roll table.
I'm rather surprised that Hamilton Beach chrome plated the brass
shaft. Nickel plating would have been more acid resistant, generally
better and more durable (but more expensive).
I dunno if chrome plating the shaft is a good idea. The stresses are
substantial and the brittle chrome plating is almost guaranteed to
flake off. I find it interesting that they apparently did not protect
the bearings or bushings from external crud. If they had a proper
bearing seal, it could have survived the chrome flake problem without
seizing.
--
Jeff Liebermann je...@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
mpm
wrote:
Solution - "on the rocks".
...or straight from the bottle. :)
On an absolute impulse buy, I recently purchased one of these "Magic
Bullet" things.
See: www.buythebullet.com
When, as often occurs here, folks each want a different twist on their
poison, something like this really comes in handy. I just hope it
holds up in the long run, as it actually is a pretty cool product.
IMO.
-mpm
MooseFET
> Joerg wrote:
> > Ok, the shaft of a Hamilton Beach blender seized. No more margarita :-(
> > Mfg said too bad, it's just out of warranty. Bought another one, of
> > course from a different brand. Margaritas are back :-)
>
> > Took the old one apart and couldn't believe it: It looks like they
> > chrome-plated the brass shaft, chrome flaked off in some areas and then
> > it seized. Has anyone seen that? Is chrome-plating a shaft that becomes
> > part of a fast-spinning bearing kosher? In the ME classes that I
> > (clandestinely) attended back at the university that "technology"
> > certainly was not taught.
>
> Hard-chroming various parts to make bearings is not uncommon.
> Hard-chroming bearing journals on crank shafts is fairly common, either
> to bring the journal up to size to match the bearing, or on a new part
> for friction and wear control. Chrome has a very low surface energy
> (think of it as metallic Teflon), and hard chrome can be very durable.
>
> But getting chrome plating right requires that you get _all_ your ducks
> in a row. Chances are they had a bad day in the plating shop, or they
> sought to trim some cost out of that process in the plating shop.
It sounds to me like they got it exactly right. It lasted just a
little longer than the warranty.
BTW: Just because you think you just bought a different brand doesn't
mean you really did.
D from BC
wrote:
>On Jul 19, 4:16?pm, Joerg <notthisjoerg...@removethispacbell.net>
Geez....That link is like a late night tv infomercial... :P
D from BC
British Columbia
Canada
mpm
> On Sat, 19 Jul 2008 17:18:11 -0700 (PDT), mpm <mpmill...@aol.com>
>
> - Show quoted text -
Yep! And actually, I originally saw this on a daytime infomercial.
Then, when I was in Wal-Mart, I just couldn't help myself.....
-mpm
Michael A. Terrell
mpm wrote:
>
> Yep! And actually, I originally saw this on a daytime infomercial.
> Then, when I was in Wal-Mart, I just couldn't help myself.....
Wal-Mart? Ughhh. :( The only thing I buy there is Breakfree. I
can't find it anywhere else.
--
http://improve-usenet.org/index.html
If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm
Sporadic E is the Earth's aluminum foil beanie for the 'global warming'
sheep.
mpm
wrote:
> mpm wrote:
>
> > Yep! �And actually, I originally saw this on a daytime infomercial.
> > Then, when I was in Wal-Mart, I just couldn't help myself.....
>
> � �Wal-Mart? �Ughhh. :( �The only thing I buy there is Breakfree. I
> can't find it anywhere else.
>
>
> If you have broadband, your ISP may have a NNTP news server included in
> your account:http://www.usenettools.net/ISP.htm
>
> Sporadic E is the Earth's aluminum foil beanie for the 'global warming'
> sheep.
I hear you. I was in the store with a friend.
I really don't go to Wal-Mart that often - even though in this
economy, it's pretty stupid not to.
Still, everytime I hear the register ding, it's like another dollar to
China!
And in my heart, I know that can't be a good thing.
I challenge anyone to find something in the store (other than
groceries) that is NOT made in China. It is truly amazing. -mpm
Glen Walpert
wrote:
>Alan Peake wrote:
>>
>>
>> Tim Wescott wrote:
>>
>> > Hard-chroming various parts to make bearings is not uncommon.
>>
>> I though hard-chroming was a different process to the shiny chrome seen
>> on motor cars etc. Sounds like the latter was what Joerg had.
>> Alan
>>
>It is a different process but I think it's just in the details. I don't
>know how different the end product looks, although chromed car parts are
>shiny because they've been carefully polished -- unpolished chrome isn't
>much to write home about.
I have used industrial hard chrome on wear surfaces in the distant
past, never less than .002" finished thickness and never on any
substrate other than steel of hardness Rc 30 or greater. It makes
little sense to put hard chrome on a soft material, the substrate can
yield causing the chrome to crack. As supplied from the plater hard
chrome has a very rough surface, way beyond any possibility of
polishing, it must be ground. The cost is so high you can be 100%
sure hard chrome has never been used on any consumer blender.
---
BTW Joerg, did your leak stop? It ocurred to me that if you are using
the tightness of the old fitting as a guide for how tight it ought to
be, you are almost certainly undertightening, as the old fitting had
plenty of time to loosen up by cold flow, which occurs in all
non-reinforced plastic piping materials including PVC and CPVC. Easily
seen when you store a piece of the pipe bent; it does not take too
long to take a permanant set.
To get a good feel for proper tightening, consider buying an extra
plastic male thread adapter next time you are somepace that sells
them. Stuff a piece of pipe in the socket end to stiffen it up, wrap
with teflon tape, put it in your old valve body or another metal
fitting, tighten hand tight, mark the position, then tighten to
failure, observing rotation and torque. Tightening in the range of
1/4 to 1/2 the torque or rotation required for failure should be
enough to flow the teflon tape for a tight seal without damaging
anything.
Also the oil in pipe dope will cause some loss of strength of PVC pipe
and is not a good idea IMO. With proper application and tightening
teflon tape works really well.
Glen
Joerg
It was chrome and yes, large flakes have come off.
> You can aggravate the problem by mixing highly acidic foods in the
> blender. These will cause the cracks to enlarge which will eventually
> hit base metal. I suggest you abandon the kitchen chemistry
> experiments and use a proper chemistry mixer, vortex mixer, magnetic
> stirring suppository, or vibro shake rattle and roll table.
>
It has a seal which seems to have held up. So I salvaged that because I
am sure none of the mixer mfgs will sell that as a separate spare part,
not enough profit. Got to stockpile those items.
> I'm rather surprised that Hamilton Beach chrome plated the brass
> shaft. Nickel plating would have been more acid resistant, generally
> better and more durable (but more expensive).
>
> I dunno if chrome plating the shaft is a good idea. The stresses are
> substantial and the brittle chrome plating is almost guaranteed to
> flake off. I find it interesting that they apparently did not protect
> the bearings or bushings from external crud. If they had a proper
> bearing seal, it could have survived the chrome flake problem without
> seizing.
>
Well, we dumped it and bought an Oster mixer. None of this cheap rubber
drive anymore. Won't buy Hamilton again.
Joerg
Ours sells horse feed supplement, made in the US last time I looked. Of
course, that kinda tells you we aren't exactly located in a metropolis.
That mixer looks cool. Ok our new one doesn't have "cyclone action". But
it does make 4-5 margaritas at a time and you can store the jar in the
fridge, then put the jar back on for a few burst refreshes and it's just
like the first glass.
Joerg
I tightened it to white-knuckle torque. Still very slow leak. I will rip
the whole chebang out and build a distribution outside the house, the
way the contractors should have done it but didn't. But I've got to find
time for that. It depends a bit on how a laser setup behaves at a client
next week and how EMC goes at another.
> To get a good feel for proper tightening, consider buying an extra
> plastic male thread adapter next time you are somepace that sells
> them. Stuff a piece of pipe in the socket end to stiffen it up, wrap
> with teflon tape, put it in your old valve body or another metal
> fitting, tighten hand tight, mark the position, then tighten to
> failure, observing rotation and torque. Tightening in the range of
> 1/4 to 1/2 the torque or rotation required for failure should be
> enough to flow the teflon tape for a tight seal without damaging
> anything.
>
> Also the oil in pipe dope will cause some loss of strength of PVC pipe
> and is not a good idea IMO. With proper application and tightening
> teflon tape works really well.
>
I am certainly not going to use teflon anymore. In a plumbing forum they
told me to get "Rector Seal" at Home Depot and that it's not as runny as
the other stuff.
Joerg
That costs customer loyalty. And has, in this case. Plus the snowball
effect.
> BTW: Just because you think you just bought a different brand doesn't
> mean you really did.
That's where the Internet helps. Even if it was or later becomes the
same holding company, if divison A sells more and division B slumps then
that's where the next round of layoffs will be.
Jim Thompson
On Sun, 20 Jul 2008 09:35:57 -0700, Joerg
<notthis...@removethispacbell.net> wrote:
[snip]
>
>I am certainly not going to use teflon anymore. In a plumbing forum they
>told me to get "Rector Seal" at Home Depot and that it's not as runny as
>the other stuff.
Maybe you over-tightened? I've had really good luck with the yellow
Teflon tape.
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Liberalism is a persistent vegetative state
Tim Wescott
> On Sat, 19 Jul 2008 16:01:20 -0700, Tim Wescott <t...@seemywebsite.com>
> wrote:
>
>> Alan Peake wrote:
>>>
>>> Tim Wescott wrote:
>>>
>>> > Hard-chroming various parts to make bearings is not uncommon.
>>>
>>> I though hard-chroming was a different process to the shiny chrome seen
>>> on motor cars etc. Sounds like the latter was what Joerg had.
>>> Alan
>>>
>> It is a different process but I think it's just in the details. I don't
>> know how different the end product looks, although chromed car parts are
>> shiny because they've been carefully polished -- unpolished chrome isn't
>> much to write home about.
>
> I have used industrial hard chrome on wear surfaces in the distant
> past, never less than .002" finished thickness and never on any
> substrate other than steel of hardness Rc 30 or greater. It makes
> little sense to put hard chrome on a soft material, the substrate can
> yield causing the chrome to crack. As supplied from the plater hard
> chrome has a very rough surface, way beyond any possibility of
> polishing, it must be ground. The cost is so high you can be 100%
> sure hard chrome has never been used on any consumer blender.
>
> Glen
Eh, good to know.
Many model airplane engines use chromed brass or aluminum cylinder
liners, with a silicon-aluminum piston, to reduce friction and match
expansion rates.
I wonder if its hard chrome or regular (or, for that matter, what the
difference is -- I just know that for bearings you get 'hard chrome' and
for pretty you get 'chrome').
Michael A. Terrell
That Breakfree lubricant, a plastic half round pizza cutter, some
cast aluminum electrical boxes and food is all I can recall. I have a
Sav-A-Lot grocery store three miles away that is cheaper on most food.
Walmart is about 12 miles away, and a couple miles past that is Sam's
Club where I buy bulk food packaged for restaurants. It is a mile from
my credit union, so I usually make one visit a month. I did buy my
Fujifilm Finepix S5200 camera there, as well. I caught it when they
were closing them out, for about half the retail price.
--
Jim Thompson
>
>mpm wrote:
>>
>> On Jul 19, 11:05�pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
>> wrote:
>> > mpm wrote:
>> >
>> > > Yep! �And actually, I originally saw this on a daytime infomercial.
>> > > Then, when I was in Wal-Mart, I just couldn't help myself.....
>> >
>> > � �Wal-Mart? �Ughhh. :( �The only thing I buy there is Breakfree. I
>> > can't find it anywhere else.
>> >
>> > --http://improve-usenet.org/index.html
>> >
>> > If you have broadband, your ISP may have a NNTP news server included in
>> > your account:http://www.usenettools.net/ISP.htm
>> >
>> > Sporadic E is the Earth's aluminum foil beanie for the 'global warming'
>> > sheep.
>>
>> I hear you. I was in the store with a friend.
>> I really don't go to Wal-Mart that often - even though in this
>> economy, it's pretty stupid not to.
>>
>> Still, everytime I hear the register ding, it's like another dollar to
>> China!
>> And in my heart, I know that can't be a good thing.
>>
>> I challenge anyone to find something in the store (other than
>> groceries) that is NOT made in China. It is truly amazing. -mpm
>
>
>
> That Breakfree lubricant, a plastic half round pizza cutter, some
>cast aluminum electrical boxes and food is all I can recall. I have a
>Sav-A-Lot grocery store three miles away that is cheaper on most food.
>Walmart is about 12 miles away, and a couple miles past that is Sam's
>Club where I buy bulk food packaged for restaurants. It is a mile from
>my credit union, so I usually make one visit a month. I did buy my
>Fujifilm Finepix S5200 camera there, as well. I caught it when they
>were closing them out, for about half the retail price.
You have to be careful at Sam's Club, I often find items cheaper at
Safeway... like wine ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Al Gore is the Pied Piper of "Climate Change"
Soothing you with Bull Shit
While quietly sucking the IQ out of your head
Michael A. Terrell
Jim Thompson wrote:
>
> You have to be careful at Sam's Club, I often find items cheaper at
> Safeway... like wine ;-)
I don't drink wine. I know the prices, and sometimes it is a few cents
higher at Sam's club, but it's still cheaper than driving to somewhere
else. I buy frozen chin breasts that are restaurant supply. they are
$2.14 a pound, full breasts, and are individually frozen, with a thin
shell of ice to prevent freezer burn. I have had some for over a year,
without affecting the quality. I buy the large containers of spices &
chopped onions. My 'spice rack' is 12" deep. Some are gallon containers.
http://www.samsclub.com/shopping/navigate.do?dest=5&item=197778&pCatg=8972
http://www.samsclub.com/shopping/navigate.do?dest=5&item=183043&pCatg=8972
http://www.samsclub.com/shopping/navigate.do?dest=5&item=363424&pCatg=8972
http://www.samsclub.com/shopping/navigate.do?dest=5&item=199801&pCatg=9058
http://www.samsclub.com/shopping/navigate.do?dest=5&item=184501&pCatg=8971
http://www.samsclub.com/shopping/navigate.do?dest=5&item=205856&pCatg=8971
http://www.samsclub.com/shopping/navigate.do?dest=5&item=201731&pCatg=2556
http://www.samsclub.com/shopping/navigate.do?dest=5&item=173949&pCatg=2556
The large containers have handles, and are nice to store beans, Pasta
& crackers.
Some other bulk packed foods are good deals, too. Bulk reduces the
packaging waste, and lets me set the serving sizes to my needs.
--
mpm
Web-Site.com> wrote:
> You have to be careful at Sam's Club, I often find items cheaper at
> Safeway... like wine ;-)
>
We don't have Safeways here (I don't think?).
But for some reason when I hear Safeway, I think of wine in screw-top
bottles, or ones you have to add water to and mix yourself. (I'm just
weird, I guess.?? Or too much RF over the years.)
That said, if you have happen to have a Total Wine store nearby,
definitely check it out!
Ours in only a mile or so. 8,000 wines in stock -and a cursory walk
through the store seems to confirm that claim. www.totalwine.com
-mpm
Jim Thompson
On Sun, 20 Jul 2008 17:40:36 -0700 (PDT), mpm <mpmi...@aol.com>
wrote:
>On Jul 20, 1:10?pm, Jim Thompson <To-Email-Use-The-Envelope-I...@My-
>Web-Site.com> wrote:
>
>
>> You have to be careful at Sam's Club, I often find items cheaper at
>> Safeway... like wine ;-)
>>
>
>We don't have Safeways here (I don't think?).
Just another version of Kroger.
>But for some reason when I hear Safeway, I think of wine in screw-top
>bottles, or ones you have to add water to and mix yourself. (I'm just
>weird, I guess.?? Or too much RF over the years.)
You have to go to the 7-11 to get screw-cap Thunderbird... though most
wines are heading toward screw-caps due to the cost of cork.
>
>That said, if you have happen to have a Total Wine store nearby,
>definitely check it out!
>Ours in only a mile or so. 8,000 wines in stock -and a cursory walk
>through the store seems to confirm that claim. www.totalwine.com
>
>-mpm
We have a BevMo here. Can't go in the place without dropping $300 ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Glen Walpert
wrote:
While there are a lot of variables platers can tweak to get the
desired results I think that the main differences are that decorative
chrome is deposited on a smooth surface at low current density for a
few minutes, and hard chrome is deposited on a relatively rough
surface (for improved bond strength) at high current density for hours
rather than minutes.
I don't know what they use on model airplane engines, but my guess is
a thinner than typical hard chrome, just thick enough to hold up to
honing.
Tim Williams
news:05e334a6-4c1f-42de...@d1g2000hsg.googlegroups.com...
> I really don't go to Wal-Mart that often - even though in this
> economy, it's pretty stupid not to.
>
> Still, everytime I hear the register ding, it's like another dollar to
> China!
> And in my heart, I know that can't be a good thing.
>
> I challenge anyone to find something in the store (other than
> groceries) that is NOT made in China. It is truly amazing. -mpm
Ironically, go to China. The Wal-Mart they have there is surprisingly
upscale, featuring quality products from -- gasp, the U.S.A. and abroad!
Not that "made in China" everyday crap they have to put up with.
I know it's fact, 'cuz I saw it on TV... actually it was on the last Koppel
on Discovery...
http://dsc.discovery.com/convergence/koppel/highlights/highlights.html
Tim
--
Deep Friar: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms
Tim Williams
> economy, it's pretty stupid not to.
>
> Still, everytime I hear the register ding, it's like another dollar to
> China!
> And in my heart, I know that can't be a good thing.
>
> I challenge anyone to find something in the store (other than
> groceries) that is NOT made in China. It is truly amazing. -mpm
Ironically, go to China. The Wal-Mart they have there is surprisingly
Tim Williams
> economy, it's pretty stupid not to.
>
> Still, everytime I hear the register ding, it's like another dollar to
> China!
> And in my heart, I know that can't be a good thing.
>
> I challenge anyone to find something in the store (other than
> groceries) that is NOT made in China. It is truly amazing. -mpm
Ironically, go to China. The Wal-Mart they have there is surprisingly
Richard The Dreaded Libertarian
>
> Still, everytime I hear the register ding, it's like another dollar to
> China!
> And in my heart, I know that can't be a good thing.
>
Oh, it's a wonderful thing! It graphically demonstrates the power of the
Free Market!
Cheers!
Rich