[SentinelAeon]

Hi, i have a few heatpipes from laptops, i would like to separate them from heatsinks, to use them at other projects. I tried with acetone, i tried boiling water, i tried fridge, nothing worked, it seems they are soldered to heatsink. I saw some guides online saying i should put them into the oven, i was wondering what temperature i can use to make sure i dont ruin the heatpipes themselves, but still separate them ?