Page 53 of 102
Posted: Wed Jan 10, 2007 3:51 pm
by Minimalist
In some of those photos it looks like a warm-up block.
Maybe the younger people had to practice?
Posted: Wed Jan 10, 2007 3:53 pm
by Charlie Hatchett
In some of those photos it looks like a warm-up block.
Not sure I understand you, Min.
I'm not real knowledgeable about metallurgy.
Posted: Wed Jan 10, 2007 4:00 pm
by Minimalist
In this shot it looks like it's been hacked at randomly.
Posted: Wed Jan 10, 2007 4:07 pm
by Charlie Hatchett
Posted: Wed Jan 10, 2007 4:09 pm
by Charlie Hatchett
In this shot it looks like it's been hacked at randomly.
The way I understand it, Min, slag is mainly silica removed, as an impurity, in the metal purification process. Is that right?
Posted: Wed Jan 10, 2007 5:03 pm
by Minimalist
Beats me.
It just looked like someone had beaten on that one pretty good.
Posted: Wed Jan 10, 2007 5:06 pm
by Charlie Hatchett
Posted: Wed Jan 10, 2007 5:09 pm
by Charlie Hatchett
Beats me.
It just looked like someone had beaten on that one pretty good.
Gotcha. It's pretty fragile stuff (think glass), so it may have been banged around before being deposited.
But certainly someone could have been screwing around with it after it cooled down...a kid, maybe?
Posted: Wed Jan 10, 2007 5:29 pm
by Forum Monk
Charlie Hatchett wrote:Gotcha. It's pretty fragile stuff (think glass), so it may have been banged around before being deposited.
But certainly someone could have been screwing around with it after it cooled down...a kid, maybe?
I been looking at this and maybe should have started reading from the beginning. I am not a metallurgist but have some experience around slags since I spent a number of years in the steel mill business. Most slags will be metal oxides but in my experience they are not particularly brittle or fragile. However the molds can be after they are used. Are you finding perhaps broken molds?
Posted: Wed Jan 10, 2007 5:57 pm
by Charlie Hatchett
I been looking at this and maybe should have started reading from the beginning. I am not a metallurgist but have some experience around slags since I spent a number of years in the steel mill business. Most slags will be metal oxides but in my experience they are not particularly brittle or fragile. However the molds can be after they are used. Are you finding perhaps broken molds?
Hey, Monk.
Thanks for the input.
Funny you should bring up the mold bit. Some of the bigger pieces appear to have chert and limestone nodules in the middle of what I think is slag. Perhaps they were molds, over which the metal was poured. The limestone might even act as a flux. Not sure about chert.
Here's a couple of photos of grey slag, from the net:
Here's a couple of hypothesized molds:
Chert nodule
http://cayman.globat.com/~bandstexas.co ... t%2010.jpg
Another chert nodule
Posted: Wed Jan 10, 2007 6:23 pm
by Charlie Hatchett
Here's a nodule of chert that appears to be covered with slag:
http://cayman.globat.com/~bandstexas.co ... %20135.jpg
From what I've been able to figure, so far, limestone would act as a flux (coke), but I'm not sure about chert.
Posted: Wed Jan 10, 2007 6:25 pm
by Minimalist
It sure as hell does not look like your hand axes.
Posted: Wed Jan 10, 2007 6:26 pm
by Charlie Hatchett
It sure as hell does not look like your hand axes.
No doubt.
Posted: Wed Jan 10, 2007 8:05 pm
by stan
Interesting, Charlie.
THis is where you need a geologist.
Where is Paul H?
Posted: Wed Jan 10, 2007 8:18 pm
by Forum Monk
Perhaps a metallurgist. Tomorrow I'll show the pictures to a good one. Don't know what he can tell by looking (without chem anaylsis and all) but you never know.
