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Question:

doubt on aluminium foil and flux?

1)Is aluminium foil a good conductor of electricity,more than brass sheets! what is the melting point of aluminium foils!can it be used to make PCB ,by cutting out the aluminium foil like a leads and paste it on a insulated board,and soldering the electronic components at its right place! 2)i have soldering flux,but i dont know how to use it!please can anyone teach me!

Answer:

aluminum is difficult to solder to, and requires special flux and procedures. Melting point would be well above the char point of any plastic used for the substrate. Or, in other words, if the aluminum gets hot enough to melt, you are doing something wrong. It should not even get warm. IF the thickness is the same, aluminum is a little more conductive than brass, not enough to matter, Copper is a lot better. any are good enough for PC work. Resistivities are listed below for some metals. Lower resistivity is higher conductivity. resistivity Ag 15.9e-9 Ω-m resistivity Cu 17.2e-9 Ω-m resistivity Au 22.14e-9 Ω-m resistivity Al 28.2e-9 Ω-m resistivity brass 35e-9 Ω-m

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