[sdiy] Trays for through hole resistors?

[Stewart Pye]

Brian,

Perhaps oxidation was not the best word to use, though oxidation is part 
of the problem. Also notice that I said *HELPS* prevent corrosion. I 
live in a subtropical environment. I'll now describe the situation at my 
home workshop, as it's not so bad where I work because it is air 
conditioned...

If I store parts in a non sealed container (eg: a parts cabinet with 
drawers), after a few years the component leads lose their shine and 
even become black. They are almost impossible to solder to. If I store 
parts in snap lock bags this does not happen. I squeeze as much air out 
of the bag as possible before sealing it. For any critical (expensive) 
parts I put a silica gel satchel in with them.

Sometimes it's more important to observe what happens in the real world, 
and react to that, rather than get hung up on semantics and science.

Regards,
Stewart.




On 8/23/2013 9:01 AM, rsdio at sounds.wa.com wrote:
> I thought my question made it clear that I wanted to know what 
> prevents oxygen from contacting the parts. Is all oxygen evacuated 
> from the bags before vacuum sealing? Most standard plastic is porous 
> to atoms like oxygen and iodine. It takes a well-controlled process 
> and very specific plastics to actually prevent oxidation.
>
> Brian
>
>
> On Aug 22, 2013, at 14:43, Kylee Kennedy wrote:
>> The lack of Oxygen perhaps?
>>
>> K
>>
>> On Thu, Aug 22, 2013 at 2:32 PM, <rsdio at sounds.wa.com> wrote:
>>> What, exactly, helps prevent oxidation?
>>>
>>> Brian
>>>
>>> On Aug 22, 2013, at 01:52, Stewart Pye wrote:
>>>> We do this at my work, but on a grander scale....
>>>>
>>>> We use 100mm x 100mm x 600mm plastic parts trays (on a 600mm deep 
>>>> shelf). The parts trays come with moveable dividers. The width is 
>>>> perfect for the snaplock bags we use. It makes it easy to arrange 
>>>> things, allows for expansion, and helps prevent oxidation. We use a 
>>>> label printer for labels for the bags (with barcodes) so you can 
>>>> easily flip through and find the different parts.
>>>>
>>>> http://www.fischerplastics.com.au/all-products/extra-long-spare-parts-tray.aspx?lv.crumb=15279 
>>>>
>>>>
>>>> Cheers,
>>>> Stew.
>
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