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One thing to be aware of: nichrome wire heats up. Solder melts with heat. So if you solder them together, and your nichrome wire gets hot enough, they will not
by Doohickey-d 1y ago
One thing to be aware of: nichrome wire heats up. Solder melts with heat. So if you solder them together, and your nichrome wire gets hot enough, they will not stay attached. Hence commercial devices use a mechanical, crimp connection.
Probably not an issue for oven or cooking temperatures, but it is if you're working on hotter things like heaters or hairdryers and such.
- CamperBob2 1y agoGood luck soldering nichrome in the first place, though, at least without using some kind of crazy acid-core solder. You'll need to crimp it.
- Arrath 1y agoThe article seems to recommend wrapping several coils of nichrome around the wire supplying electricity, and just globbing a load of tin solder on. Not ideal, I'd say.
- Aurornis 1y agoYour standard electronics solder is not going to stick to nichrome anyway. You have to seek out special brazing materials and difficult fluxes to even get that far. This article tries to use large solder blobs to mechanically trap the nichrome wire, which I don't recommend for the reasons above. You really should use a crimp connection.
- analog31 1y agoThe appliances I've opened up used spot welding.
- dlcarrier 1y agoCrimps are also far more vibration resistant than solder joints, which is especially necessary with wire-to-board connections.
- awesome_dude 1y agoJust a nit pick... but Don't all metals melt with heat...? What I think you mean to say is that (some) solders melt at the temperatures that this heating device operates at?
- mrWiz 1y agoPlenty of non-metal materials melt with heat, too. Solder is the only one relevant to the comment, which is presumably why it was the only one mentioned.
- asdefghyk 1y agoThe description in the comment Im replying to - reminded me of the replaceable element in electric jugs, which where common during 1970s. The nichrome wire was meant to be replaceable , so had a mechanical connection , not soldered. Here is a good picture of what I have attempted to describe .... https://www.lighting-gallery.net/gallery/displayimage.php?pos=-130368
- IAmBroom 1y agoThat's not why they weren't soldered, as others have mentioned.
- somat 1y agoOr spot weld it. > Probably not an issue for oven or cooking temperatures Just looked it up and it appears that most soft solder(what we commonly think of as solder) melts around 400F (200C). so I would worry about a soldered joint in the hot part of an oven as well.