Solder @Wikipedia
Bi58Sn42 (eutectic, 138°C, ≈280°F) alloy has a history of safe use in electronics (IBM, Unisys; wave soldering).
Then there's Rose's Metal. Heard its actual fusion temperature is between 94 and 98°C (201 to 208°F). Don't really know for what actual metal composition rates in the alloy. Wiki lists Bi50Pb28Sn22. With pure Bismuth and Pb55Sn45 or Pb60Sn40 solders it actually is easy to home cook with 50/50% ratios.
Seen it listed on eBay also, from Russia with love
: Rose's metal / Rose metal (Bismuth, Lead, Tin alloy) 75 g. LOW MELTING SOLDER @zhuykoff (Bi50Pb32Sn18 ratio)
0K, maybe most of you won't care much about this stuff but, considering its low fusion temperature and composition, I figured it would make an amazing battery interconnecting solder.
In fact, it also serves as a overheating fuse. If a battery were to be assembled interconnecting its cells with this stuff, the connecting bridges would start to detach themselves automatically at close to water boiling temperature, causing an open circuit sooner than later.
And, of course, an undue stressless battery pack could quickly be done with a standard soldering iron.
Don't you think?
Cheers
Bi58Sn42 (eutectic, 138°C, ≈280°F) alloy has a history of safe use in electronics (IBM, Unisys; wave soldering).
Then there's Rose's Metal. Heard its actual fusion temperature is between 94 and 98°C (201 to 208°F). Don't really know for what actual metal composition rates in the alloy. Wiki lists Bi50Pb28Sn22. With pure Bismuth and Pb55Sn45 or Pb60Sn40 solders it actually is easy to home cook with 50/50% ratios.
Seen it listed on eBay also, from Russia with love
: Rose's metal / Rose metal (Bismuth, Lead, Tin alloy) 75 g. LOW MELTING SOLDER @zhuykoff (Bi50Pb32Sn18 ratio)0K, maybe most of you won't care much about this stuff but, considering its low fusion temperature and composition, I figured it would make an amazing battery interconnecting solder.
In fact, it also serves as a overheating fuse. If a battery were to be assembled interconnecting its cells with this stuff, the connecting bridges would start to detach themselves automatically at close to water boiling temperature, causing an open circuit sooner than later.
And, of course, an undue stressless battery pack could quickly be done with a standard soldering iron.
Don't you think?
Cheers
