Connect with us

Lead-free solder redux

Discussion in 'Electronic Design' started by Rich Grise, Nov 15, 2008.

  1. Rich Grise

    Rich Grise Guest

    I was just looking for low-melting stuff for the "bend waveguide" thread,
    and stumbled on this:
    http://www.mcmaster.com/#catalog/114/3532

    Where, if you scroll down below the bismuth, there's indium. They mention
    that the "#35 wire comes in a 105-ft. spool of 1/16" dia. wire. It's
    great for low-temperature soldering."

    And it's got no lead or cadmium! Hooray!

    But there are two drawbacks - it's like $400./pound, and it melts at 260F!
    (easy for on the bench, but I wouldn't use it under the hood of a car!)

    Cheers!
    Rich
     
  2. IanM

    IanM Guest

    Isn't that the stuff that wets glass and ceramics?
     
  3. Rich Grise

    Rich Grise Guest

    I donn't know - why don't you investigate that, and give us all a report?
    :)

    Thanks!
    Rich
     
  4. Guest

    don't know about ceramic but I have read somewhere that i can solder
    to glass and is used to make e.g. vakuum tight connections betwen
    metal and glass.

    it's called fields metal

    -Lasse
     
  5. Another drawback is that Indium is very soft: you can squeeze it with
    your fingers. I used Indium wire for gaskets: you just cut 2 pi r plus
    epsilon, overlap the ends, and squeeze tight.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-