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CRACK DETECTION

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datakoll

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May 31, 2012, 7:27:10 PM5/31/12
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AHHH CRACK DETECTION.....will power...

https://www.google.com/webhp?hl=en&tab=gw#hl=en&output=search&sclient=psy-ab&q=metal+crack+identification+powder&oq=metal+crack+identification+powder&aq=f&aqi=&aql=&gs_l=hp.3...3157.10904.0.12850.33.21.0.0.0.0.0.0..0.0...0.0.EDyg5Nt2qZI&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=16a76c5f7e072d5b&biw=1152&bih=635

James

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May 31, 2012, 8:22:52 PM5/31/12
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On 01/06/12 09:27, datakoll wrote:
> AHHH CRACK DETECTION.....will power...
>
> https://www.google.com/webhp?hl=en&tab=gw#hl=en&output=search&sclient=psy-ab&q=metal+crack+identification+powder&oq=metal+crack+identification+powder&aq=f&aqi=&aql=&gs_l=hp.3...3157.10904.0.12850.33.21.0.0.0.0.0.0..0.0...0.0.EDyg5Nt2qZI&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=16a76c5f7e072d5b&biw=1152&bih=635

https://www.google.com.au/search?q=ultrasonic+crack+detection

https://www.google.com.au/search?q=eddy+current+crack+detection

Or, clean bike, open your eyes and inspect closely.

--
JS.

datakoll

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May 31, 2012, 10:34:10 PM5/31/12
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was looking for a tech DIY shade tree crack mmethod maybe 2-3 steps above looking at a highly scrubbed with detergent and CHOH, soft brush-use a soft brush or ?-cleaned piece thru a magnifier under strong light ?

anyone know of a golden hammer winner for this ?
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Ian Field

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Jun 1, 2012, 9:39:09 AM6/1/12
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"Phil W Lee" <ph...@lee-family.me.uk> wrote in message
news:d0jgs750bkbrg6bn8...@4ax.com...
> datakoll <data...@yahoo.com> considered Thu, 31 May 2012 19:34:10
> Woodstain has worked for me once when I was looking for something to
> tell if a crack was significant enough to be of concern - just paint
> on and wipe off, leaving whatever gets drawn into the cracks.
> Of course, that may not be suitable if you want to weld/braze the
> crack once you find one.
> But any dye should be effective if it is a proper dye, not a pigment.
> Select according to what further work is likely to follow.
>

There is a product for industry, but I can't remember the name.

Its a spray can of florescent dye - spray on and let dry, then illuminate
with UV lamp.

Any cracks show up so you can't miss them.


datakoll

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Jun 1, 2012, 11:47:40 AM6/1/12
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its in here:

https://www.google.com/webhp?hl=en&tab=gw#hl=en&sa=X&ei=hOLIT86KMeWA6QHcmbj1Dw&ved=0CDgQvwUoAQ&q=aluminum+crack+fluorescent+dye+-+spray+can&spell=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=16a76c5f7e072d5b&biw=1152&bih=635

there is or was a tome listing early industrial chemical compounds...like how to mix brass cleaner from what you have in the garage and yard. You know, a basic DIY approach very close to the woodstain.

What's attracted to aluminum is the next search. Film at 11.
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datakoll

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Jun 1, 2012, 12:59:14 PM6/1/12
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hmmmm I haven't tried dye on spokes or hubs or rims.

what's it look like ?

interesting photo array:

spokes dyed at new

spokes dyed at 1000 miles...

datakoll

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Jun 2, 2012, 12:38:28 PM6/2/12
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eureka !

http://www.summitracing.com/search/?keyword=dye&dds=1
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