Electronics Forum | Thu Jan 29 09:18:36 EST 2015 | davef
Nichrome, manganin, phosphor bronze etc are easy to solder ... the hard part is removing the corrosion * Manganin: 86% copper, 12% manganese, 2% nickel. Often, it's used in making cryogenic measurements, due to its low heat loss. * Select a flux for
Electronics Forum | Wed Nov 02 22:06:54 EST 2005 | davef
Slaine, our intuition is the same as yours [that 100Sn should dissolve the copper faster than other solders]. Bob Gilbert's FCT data shows otherwise. Look here: http://www.fctassembly.com/newsltr/2004/0804/Aug04.htm
Electronics Forum | Wed Jan 21 12:25:45 EST 2015 | dyoungquist
Kester makes a thermocouple solder: Alloy SN10PB88AG2 Flux "44" Core 58 Diam 0.031" I have used this to solder thermocouples to pcbs when profiling for lead-free temperatures. When done you can unsolder the thermocouple and reuse it again. This g
Electronics Forum | Thu Nov 03 08:18:17 EST 2005 | fctassembly
Hello Arnold, Just to clarify the Sn100C discussion: Please note that SN100C is the Nihon Superior alloy composed of tin/.7copper/nickel. The key point in regard to SN100C is that Cu does not go directly into solution but first reacts to form an inte
Electronics Forum | Thu Feb 16 13:03:52 EST 2006 | Tom Winchell
Assuming the AL tape shorts the wires for the thermocouple, you effectively have three junctions at the business end of the wire: wire 1 to AL, wire 2 to AL, and wire 1 to wire 2. If the temperature of the junctions wire 1 to AL and wire 2 to AL are
Electronics Forum | Thu Dec 30 09:56:04 EST 1999 | Judy Forbes
Preleg wire is an epoxy coated wire. Is there an IPC standard or general rule for how Preleg wire (30 Awg) should be tacked down? Should it be tacked down every 1" as is regular wire - Or should it be tacked the whole length of the wire?
Electronics Forum | Thu Mar 11 13:09:52 EST 2021 | processman
Hello, Hoping for some help, we have Hesse BJ820 wirebond machine and after changing to new spool of wire the wire snaps after first bond. Anyone have any idea ? Wire is in date and no change in machine setup, just change spool of wire.
Electronics Forum | Tue Oct 04 20:31:16 EDT 2016 | davef
IPC-7721, Section 6.1, Jumper Wires, Jumper Wire Selection #5 states: "Recommended wire is solid, insulated, plated copper wire, 22 to 32 AWG with a heat resistant insulation. Wire with tin-lead plating may be restricted due to environmental laws."
Electronics Forum | Mon Nov 13 11:31:10 EST 2000 | John Rep
I am having a problem with wetting on some feedthru wires. The problem seems to be contamination on the wires, due to the fact that the problem seems to be wire lot dependent. I have analysed it using SEM and come up with very little. Is there ano
Electronics Forum | Fri Jun 29 09:58:19 EDT 2001 | edmentzer
We use 30 and 32 gauge PTFE wire. The insulation will not melt with normal hand soldering temps. The wire was made by Thermax/CDT. Their phone number is 800-423-5873. The only problem with the wire is that is hard to glue to the board. We use Ta
