I guess it will be sold only in US.
What about the European market ? What do you need to make your Silver Bullion available to Europe ?
its going to be us only at first. after that i will explore options for other parts of the world.
Topic: NXT Silver Bullion Gateway Gateway Updates and Information - page 3. (Read 12398 times)
I guess it will be sold only in US.
What about the European market ? What do you need to make your Silver Bullion available to Europe ?
its going to be us only at first. after that i will explore options for other parts of the world.
I guess it will be sold only in US.
What about the European market ? What do you need to make your Silver Bullion available to Europe ?
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
maybe anon can start by that and adjusting by experience. If anon cast many silver bar, then It only take a couple adjustment from experiment to make it right. I don't know. Is that what you plan anon?
Or you want to be right the first time?
You can use the newton method or the bissection method to adjust rapidly your experimental guess each time given the results of your previous casting.
yes its going to involve experimentation. that's inevitable. as complicated as this all sounds one has to consider additionally that the mould its self will be expanding and contracting with the heat. i hope my customers will be patient with me if my earlier bars come in at under 10 troy ounces. i will of course re-pour them for free when i get it perfect at some point in the future.
Do you have some experience in casting? or some people around you know that science? Casting at 1200-1300K is very dangerous.
no i dont not have any experience. of course that can be said for everyone who does at some point in their life. i am working with newliberty.
I suggest you go take some casting course. That would be best thing you can do. Or go visit directly some forgery and ask them questions. They are probably the best people that can help you.
To achieve 1200-1300K in a furnace, you need special equipement. And when it get out of the furnace. It is very very f**king hot around.
I don't want to get you hurt while you escrow something for me.... joking lol (only for the escrow part)
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
maybe anon can start by that and adjusting by experience. If anon cast many silver bar, then It only take a couple adjustment from experiment to make it right. I don't know. Is that what you plan anon?
Or you want to be right the first time?
You can use the newton method or the bissection method to adjust rapidly your experimental guess each time given the results of your previous casting.
yes its going to involve experimentation. that's inevitable. as complicated as this all sounds one has to consider additionally that the mould its self will be expanding and contracting with the heat. i hope my customers will be patient with me if my earlier bars come in at under 10 troy ounces. i will of course re-pour them for free when i get it perfect at some point in the future.
Do you have some experience in casting? or some people around you know that science? Casting at 1200-1300K is very dangerous.
no i dont not have any experience. of course that can be said for everyone who does at some point in their life. i am working with newliberty.
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
maybe anon can start by that and adjusting by experience. If anon cast many silver bar, then It only take a couple adjustment from experiment to make it right. I don't know. Is that what you plan anon?
Or you want to be right the first time?
You can use the newton method or the bissection method to adjust rapidly your experimental guess each time given the results of your previous casting.
yes its going to involve experimentation. that's inevitable. as complicated as this all sounds one has to consider additionally that the mould its self will be expanding and contracting with the heat. i hope my customers will be patient with me if my earlier bars come in at under 10 troy ounces. i will of course re-pour them for free when i get it perfect at some point in the future.
Do you have some experience in casting? or some people around you know that science? Casting at 1200-1300K is very dangerous.
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
maybe anon can start by that and adjusting by experience. If anon cast many silver bar, then It only take a couple adjustment from experiment to make it right. I don't know. Is that what you plan anon?
Or you want to be right the first time?
You can use the newton method or the bissection method to adjust rapidly your experimental guess each time given the results of your previous casting.
yes its going to involve experimentation. that's inevitable. as complicated as this all sounds one has to consider additionally that the mould its self will be expanding and contracting with the heat. i hope my customers will be patient with me if my earlier bars come in at under 10 troy ounces. i will of course re-pour them for free when i get it perfect at some point in the future.
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
maybe anon can start by that and adjusting by experience. If anon cast many silver bar, then It only take a couple adjustment from experiment to make it right. I don't know. Is that what you plan anon?
Or you want to be right the first time?
You can use the newton method or the bissection method to adjust rapidly your experimental guess each time given the results of your previous casting.
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
if there happens that liquid -> solid change, then the volume change is more (11.3 %),
according to those densities http://en.wikipedia.org/wiki/Silver
anon: I'm pretty sure your calculation of 5.5% difference is correct, you used the formulas and values correctly.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
a temperature difference of about 900 degrees is pretty severe, I think a shrinking of 5% is absolutely possible.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
Maybe chanc3r's solid/liquid numbers are the most useful (depending on your accuracy requirements)...
until someone finds the nonlinear coefficients for silver
density of solid silver at room temperature = 10.49gcm^-3
density of liquid silver at melting point= 9.320gcm^-3
perhaps this is a simpler - the ratio of the densities will give you a volume change between liquid silver and room temperature solid silver.
density of liquid silver at melting point= 9.320gcm^-3
perhaps this is a simpler - the ratio of the densities will give you a volume change between liquid silver and room temperature solid silver.
good point. the mean between those values would be a good estimation.
if just calculating with an example, 1000 g of silver:
liquid : V = 1000 g / 9.3 g/cm3 = 107.5268 cm3
solid: V = 1000 g / 10.49 g/cm3 = 95.328 cm3
Volume change X % is broadly 11.3 %.
(if you need more accurate, then it needs equation
V1 - (V1/100*X) = V2
NXT Logo and silver -the ideas are unlimited. Great project Anon.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
do you plan to cast silver yourself? That is pretty complicated.
yes i do and yes i know. what we are talking about right now is just part of the complications
I assume that you cast at 1 atm, so the process is roughtly at constant pressure.
For a good approximation, I believe you need to use integral formula with alpha(T) function of temperature. I don
it doesn't need to be that accurate. its good practice to cast at a little over the denomination anyway.
Depending on accuracy you don'T have to use integral, but only do stair approximation of the curve. and compute 100*dV/V for a certain number of dT interval. After which you sum up each 100*dV/V computed.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
do you plan to cast silver yourself? That is pretty complicated.
yes i do and yes i know. what we are talking about right now is just part of the complications
I assume that you cast at 1 atm, so the process is roughtly at constant pressure.
For a good approximation, I believe you need to use integral formula with alpha(T) function of temperature. I don
it doesn't need to be that accurate. its good practice to cast at a little over the denomination anyway.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
do you plan to cast silver yourself? That is pretty complicated.
yes i do and yes i know. what we are talking about right now is just part of the complications
I assume that you cast at 1 atm, so the process is roughtly at constant pressure.
For a good approximation, I believe you need to use integral formula with alpha(T) function of temperature. I don
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
Maybe chanc3r's solid/liquid numbers are the most useful (depending on your accuracy requirements)...
until someone finds the nonlinear coefficients for silver
density of solid silver at room temperature = 10.49gcm^-3
density of liquid silver at melting point= 9.320gcm^-3
perhaps this is a simpler - the ratio of the densities will give you a volume change between liquid silver and room temperature solid silver.
density of liquid silver at melting point= 9.320gcm^-3
perhaps this is a simpler - the ratio of the densities will give you a volume change between liquid silver and room temperature solid silver.
good point. the mean between those values would be a good estimation.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
Maybe chanc3r's solid/liquid numbers are the most useful (depending on your accuracy requirements)...
until someone finds the nonlinear coefficients for silver
density of solid silver at room temperature = 10.49gcm^-3
density of liquid silver at melting point= 9.320gcm^-3
perhaps this is a simpler - the ratio of the densities will give you a volume change between liquid silver and room temperature solid silver.
density of liquid silver at melting point= 9.320gcm^-3
perhaps this is a simpler - the ratio of the densities will give you a volume change between liquid silver and room temperature solid silver.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
do you plan to cast silver yourself? That is pretty complicated.
yes i do and yes i know. what we are talking about right now is just part of the complications
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
do you plan to cast silver yourself? That is pretty complicated.
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
ok well that's really going to go out of my league. can any of you smart guys tell me how much the volume would change when cooling from 1234K to 300K?
BUT I don't think solid to liquid volume change can be calculated using a constant - so your 5% may be wrong because you have a 'state change'
yes, the coefficients are not constant, they depend on the temperature and the pressure
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