[physical] water tank under pressure
Very little difference since it is 2 carbon iron alloys, in other words 7.4 to 7.8 for cast iron and 7.8 for steel.
0 x
"Thinking should not it be taught in school rather than to make learning by heart the facts that are not all proven?"
"It's not because they are likely to be wrong they are right!" (Coluche)
"It's not because they are likely to be wrong they are right!" (Coluche)
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- Econologue expert
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- Registration: 12/01/07, 08:18
- x 4
Hi Harry, it's a little lighter than steel, around 7 Tons / m3.
Here is what you will like:
http://www.ilephysique.net/encyclopedie ... mique.html
Tungsten tell you? Otherwise, tantalum and uranium are reaching out to you
Here is what you will like:
http://www.ilephysique.net/encyclopedie ... mique.html
Tungsten tell you? Otherwise, tantalum and uranium are reaching out to you
0 x
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- I understand econologic
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- Gregconstruct
- Econologue expert
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- Registration: 07/11/07, 19:55
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- chatelot16
- Econologue expert
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- Registration: 11/11/07, 17:33
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- x 264
cast iron is a little bit less dense than steel
cast iron is practical for a builder who will mold his counterweight to the desired shape
I prefer to walk around a metal merchant and choose what I like: the sheet metal drops are very practical: we can stack the number of pieces it takes to make the exact weight without losing space
cast iron is practical for a builder who will mold his counterweight to the desired shape
I prefer to walk around a metal merchant and choose what I like: the sheet metal drops are very practical: we can stack the number of pieces it takes to make the exact weight without losing space
0 x
- chatelot16
- Econologue expert
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- Registration: 11/11/07, 17:33
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- x 264
in old batteries the acid is completely lost by fesing lead sulphate ...
if the battery is not old enough just pour this acid on a pile of limestone and it makes calcium sulfate = plaster therefore harmless
the problem is not acid but lead: solid lead is not polluting because it is unalterable and does not disperse: but the lead compounds which are in a battery fall in dust and disperse everywhere
no need to melt batteries to make solid lead: a very small part of the lead will melt correctly: for the rest you have to do real metallurgy ....
if the battery is not old enough just pour this acid on a pile of limestone and it makes calcium sulfate = plaster therefore harmless
the problem is not acid but lead: solid lead is not polluting because it is unalterable and does not disperse: but the lead compounds which are in a battery fall in dust and disperse everywhere
no need to melt batteries to make solid lead: a very small part of the lead will melt correctly: for the rest you have to do real metallurgy ....
0 x
Hello harry the delighted
You have another possibility, at the junkyard, they sort the metals. I have already seen a 200 liter barrel filled with carbide pellets (cutting tools for lathes and milling machines). It is a sintered "alloy" containing a very large proportion of Tungsten (density in the 19!).
For your problem, for example, you can make a composite concrete / carbide pad. By cons, no idea of the price by weight that the scrap dealer will ask you ....
A+
You have another possibility, at the junkyard, they sort the metals. I have already seen a 200 liter barrel filled with carbide pellets (cutting tools for lathes and milling machines). It is a sintered "alloy" containing a very large proportion of Tungsten (density in the 19!).
For your problem, for example, you can make a composite concrete / carbide pad. By cons, no idea of the price by weight that the scrap dealer will ask you ....
A+
0 x
Reason is the madness of the strongest. The reason for the less strong it is madness.
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
- Gregconstruct
- Econologue expert
- posts: 1781
- Registration: 07/11/07, 19:55
- Location: Amay Belgium
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