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h1a8

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Thanks!

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- Thread starter h1a8
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- #1

h1a8

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Thanks!

- #2

mfb

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- #3

h1a8

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So a 3000 degree arc from a wielding torch could melt a certain amount of steel the same speed as a 2500 degrees arc could?

According to Newtons Law of Heating, it’s takes a certain amount of time for a medium to heat an object to a certain temperature.

- #4

mfb

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That is a different question than in your original post.it’s takes a certain amount of time for a medium to heat an object to a certain temperature

If you consider heat flow from some external heating source to the metal you'll have to consider thermal conductivity, and in general you will need numerical simulations because there is no analytic solution.

- #5

h1a8

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I seen the equationThat is a different question than in your original post.

If you consider heat flow from some external heating source to the metal you'll have to consider thermal conductivity, and in general you will need numerical simulations because there is no analytic solution.

Rate of Heat transfer = k(T1 - T2) /d

Where K is the thermal conductivity, T1 is the temperature of the object 1, T2 is the temperature of object 2,and d is the thickness of the object.

I'm basically trying to calculate how long it will take for a substance of certain size and mass to melt under a given ambient temperature.

- #6

mfb

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That works for flat objects where opposing surfaces have the same constant temperature and there is a steady flow of heat. That is not the situation you have, although that formula can be used in simulations for small mass elements and small time steps.Where K is the thermal conductivity, T1 is the temperature of the object 1, T2 is the temperature of object 2,and d is the thickness of the object.

This will likely need a numerical simulation.I'm basically trying to calculate how long it will take for a substance of certain size and mass to melt under a given ambient temperature.

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