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|    rec.crafts.metalworking    |    Metal working and metallurgy    |    215,319 messages    |
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|    Message 214,876 of 215,319    |
|    Jim Wilkins to All    |
|    Re: Lead pots    |
|    13 Oct 25 22:44:06    |
      From: muratlanne@gmail.com              "David Billington" wrote in message news:10cjatc$2b93d$1@dont-email.me...              Stratotherm crimps IIRC, I've used some for wiring in kilns with high       temperature wiring. I managed to get the correct crimpers 2nd hand off       ebay, the new price would make your eyes water. Any recommendations for       alternatives to the intended crimper.              -------------------------------              I snatch up used crimpers at flea markets and use whatever fits best. If       they have calibration specs they no longer meet, like pulling tight on a       certain size of drill bit shank, I shim under the dies. For home use a       perfect crimp that properly strain relieves the insulation isn't as       important as for a machine that will be jolted in the back of a       cross-country truck.              The old Stanley 84-203 crimps tight enough to pass a pull test on most       everything.       https://www.ebay.com/itm/226842087604              https://nepp.nasa.gov/files/27631/nstd87394a.pdf       Table 12-1 on p.54 gives the pass/fail limits.              "For those contact-conductor crimp connections not contained in Table 12-1,       the       tensile strength of the crimp connection shall be no less than 60 percent of       the tensile       strength of the wire. Reference the manufacturer’s datasheet for wire       tensile strength."              Straightening solid copper wire by pulling it past its yield point gives a       good feel for wire strength. I've seen the pull force test machine but never       anyone using it, an experienced tug by hand was enough.              At work the company bought the proper tools, which cost as if they were       hand-crafted by Swiss watchmakers.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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