Author Topic: Out of the junk box  (Read 4088 times)

Offline doubletop

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Out of the junk box
« on: November 18, 2012, 08:24:41 AM »
I needed a piece of bronze and had something that was just the job. So I spent an hour or so making the parts and then went to the hearth to do the silver soldering.

The job went black an then this happened. (I cut off another piece to show you)

<a href="http://www.youtube.com/watch?v=jZYMv7N2aa8" target="_blank">http://www.youtube.com/watch?v=jZYMv7N2aa8</a>

I assume its something like Oilite

Using scrap isn't always the most cost effective option. I now need to remake the job.

Pete
« Last Edit: November 18, 2012, 08:31:18 AM by doubletop »
?To achieve anything in this game, you must be prepared to dabble on the boundary of disaster.? - Stirling Moss

Offline tel

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Re: Out of the junk box
« Reply #1 on: November 18, 2012, 08:34:06 AM »
Certainly not your ordinary bit of bronze.
The older I get, the better I was.
Lacerta es reptiles quisnam mos non exsisto accuso nusquam

Offline sbwhart

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Re: Out of the junk box
« Reply #2 on: November 18, 2012, 09:03:59 AM »
Can't see the picture Pete

But it could be ally bronze to check it out try a strong magnet on it if its ally bronze it will be slightly magnetic.

You have to add 50% salt to the flux to solder ally bronze never tried it though.

Stew
A little bit of clearance never got in the way

Offline b.lindsey

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Re: Out of the junk box
« Reply #3 on: November 18, 2012, 01:16:22 PM »
I would have to agree with you on it being oil impregnated bronze, else it wouldn't have stayed lit with the torch removed. Good stuff on its own, but obviously not good for silver soldering.

Bill

Offline Don1966

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Re: Out of the junk box
« Reply #4 on: November 18, 2012, 03:04:18 PM »
Looks like sintered brass Pete, probably a bushing out of an appliance. It is full of oil.

Don

Offline doubletop

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Re: Out of the junk box
« Reply #5 on: November 19, 2012, 06:00:48 AM »
Stew

Hopefully the video is working for you

Don

It was certainly full of oil but it wasn't an old bushing, it was just a piece of bar



It certainly had me thinking at the time but it seems to fit the description of Oilite  http://en.wikipedia.org/wiki/Oilite

It did get it to silver solder once the oil had burned off and I cleaned it up, but it wasn't much good as a steam valve, it leaked a bit through the metal

Pete
« Last Edit: July 16, 2017, 09:15:27 AM by doubletop »
?To achieve anything in this game, you must be prepared to dabble on the boundary of disaster.? - Stirling Moss

Offline Don1966

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Re: Out of the junk box
« Reply #6 on: November 19, 2012, 01:45:39 PM »
Sintered Brass is porous Pete and made to absorb oil.

Don

Offline Jo

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Re: Out of the junk box
« Reply #7 on: November 19, 2012, 02:26:22 PM »
Looking at the texture of the finish it does look like sintered bronze. Well worth putting in a labeled bag for when you need it.

Jo
Usus est optimum magister