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Anonymous Poster

can anyone answer this???????

03/26/2009 11:17 PM

what happens when a spring is put in an acid?
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Anonymous Poster
#1

Re: can anyone answer this???????

03/26/2009 11:23 PM

What material of spring? What kind of acid? What temperature? Is the spring compressed or extended? What is the reason for the question? Is this a joke or homework?
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Sapper
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#2

Re: can anyone answer this???????

03/26/2009 11:27 PM

It dissolves....

The Springy-ness of the metal will be unaffected until enough material is corroded away that either the form of the spring develops a weakness and fails at that point or insufficient material remains to hold the shape & form of the spring.

But why would you put a spring in Acid???

The acid will effect the surface through corrosion, very unlikely to effect the Chemical structure of the material.

Regards,
Sapper.

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PWSlack
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#3

Re: can anyone answer this???????

03/27/2009 4:11 AM

It depends upon the materials of both the spring and the acid!

Google "corrosion chart"!

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cnpower
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#4

Re: can anyone answer this???????

03/27/2009 6:11 AM

haha I can solve it, no problem, what prize?
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DVader1000
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#5

Re: can anyone answer this???????

03/27/2009 11:39 AM

Why don't you find out or yourself?

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mechlover420
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#6

Re: can anyone answer this???????

03/28/2009 12:47 PM

whats u think its an place for making jock's go back to school dear its an time to attend the class ........... ha ha ha.............
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lyn
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#7
In reply to #6

Re: can anyone answer this???????

03/29/2009 11:04 AM

Can anyone translate this to English?
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Milo
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#8

Re: can anyone answer this???????

03/29/2009 10:02 PM

If the spring is steel, The acid will likely donate hydrogen, causing embrittlement. This embrittlement may occur faster than corrosion failure.

So Springs that were exposedto acid could suddenly fail at much lower cycles of use than expected.

I believe that this metallurgical/ engineering phenomenon might be what you had in mind.

As others have pointed out, Corrosion is also a major expectation, depending on the material, acid, and concentration, and springs surface coating.

milo

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Sapper
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#9
In reply to #8

Re: can anyone answer this???????

03/30/2009 8:04 PM

Milo,

I didn't realise this could happen, Is it a surface change or a full thickness change?

What sort of Time frame are we looking at for Embrittlement vs Corrosion impact?

Thanks & Regards,
Sapper

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Milo
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#10
In reply to #9

Re: can anyone answer this???????

03/30/2009 8:23 PM

I will send you a private email to get your private email so I can send you a copy of a spec/paper that discusses this. I'm away from my office at moment. basically, the pickling before plating (acid cleaning) can be enough to allow pick up of hydrogen. That is on a time scale of say 1000 seconds...Then of course, so can the generation of hydrogen durirng plating. As a result, knowledgeable manufacturers require a post plate bake out after any 'acid treatment' to facilitate diffusion of hydrogen out of the matrix.

(also, MNS which are normally found in steels can absorb/hold H2 too.)

I'll reconnect in AM.

milo

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rickwil
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#11

Re: can anyone answer this???????

04/18/2009 9:21 AM

There was an old question on this subject about springs and acid. The question was that if you compressed a spring and put it in acid and the spring disolved in it's entirety, what happened to the potential energy that was stored in the coil?
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Anonymous Poster (1); cnpower (1); DVader1000 (1); lyn (1); mechlover420 (1); Milo (2); PWSlack (1); rickwil (1); Sapper (2)

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