On Wed, 26 Jun 2002, M. Adam Davis wrote:

>Steel wool?  Magnesium?
>
>You might want to point out that they should use real steel - common
>'steel wool' may simply make the problem worse as its made of fine spun
>magnesium - rather flammable and difficult to put out.

In an oxygen strream - yes. Otherwise - no ;-). Common steel wool is
really steel wool. It rusts quite convincingly if wetted.

Peter

>-Adam.
>
>Peter L. Peres wrote:
>
>>On Tue, 25 Jun 2002, Spehro Pefhany wrote:
>>
>>
>>
>>>At 12:54 PM 6/25/02 -0500, you wrote:
>>>
>>>
>>>
>>>>Don't think I will try, but according to the instructor,
>>>>you can weld tanks which have already had fuel in them,
>>>>by filling them with water.
>>>>
>>>>
>>>I've heard of steam cleaning plus filling them with CO2.
>>>
>>>
>>
>>Filling with nitrogen, steam, or *COLD* engine *exhaust* gas.
>>
>>
>>
>>>People have died doing things like this.
>>>
>>>Say, anyone have any first hand knowledge of flashback arrestor design?
>>>I'm trying to cob one together for a small Hyrogen-Oxygen torch.
>>>
>>>
>>
>>Not first hand but in general small holes do that. A porous ceramic gas
>>filter and/or steel wool trapped in an inline fixture should do it.
>>
>>Peter
>>
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