I've done crimps with hammer and anvil, on occasion.
I've done crimps with hammer and anvil, on occasion.
I can't add much to what others have said comparing general crimp to solder. But lets get back to the question about Anderson Power Pole terminals. I use them extensively with my Ham equipment, operating from
13.8 volt DC power supplies and auto electrical systems.I've found that Anderson Power Pole connections get hot from contact resistance when they carry high current, say 20 Amps or so continuous. If they are soldered, I do not believe the temperature would be so high that the solder could melt. However the higher temperature might tend to cause oxidation of the solder.
Fred
The problem with lead/tin solder is that it is not a great conductor. A good crimp puts the wire in direct contact with the silver plating of the contact.
Silver solder might be a lot better, but for the 350amp contacts we used, the cost would be prohibitive. (Even lead/tin solder in the quantities we would have needed would have been expensive.)
Haven't scrutinized this whole thread... but do know in aerospace crimping is preferred in most cases, but solder is both needed and used in some situations.
As a side note...
The above poster mentions AC43.13-1b... this is a publication put out by the FAA. The 'AC' stands for 'Advisory Circular'(even though in this case the printed version is a book). PDF copies are freely available for download from the FAA website, along with hundreds if not thousands of other advisory circulars & handbooks. Even though their main focus is aircraft, they contains loads excellent BS/advertizing free information.
For more wiring/soldering/crimping info, also go to NASA's site and find a PDF of:
NASA-STD-8739.4
It's also free. (If you have trouble finding it there, just Google it... it's all over the web) Like the FAA, NASA also has a ton of technical PDF's up... look through them while your there.
Erik
Not hardly. Cat crimps and solders wire terminations, as you mentioned, on circuit boards, as well in as but splices, ring terminals and similar, military connectors, ITT Cannon (Sure Seal) connectors and a few others.
They only crimp terminations in all Deutsch connectors and some other lesser used connectors.
Due to the quantity of wires in the Deutsch connectors versus all the other terminations approx. 60% are crimped only and 40% are crimped and soldered.
Tell your future son-in-law to look at the engineering spec for soldering that is listed on all harness drawings. If that contradicts anything I've said I owe you a beer. If not, you owe me a beer. Deal?
That's why a proper soldered joint is first crimped. Solder holds and seals the connection. That's the way I was taught.
I can make some pretty poor soldering at times, but I can also use proper technique. I passed a NASA soldering school class.
Who says a solder connection does not need proper strain relief to prevent vibration failure.
I have soldered large battery cables using hundreds of watts, as well as
1.5 mm caps to boards.Greg
That's what I learned in NASA soldering school, keeping wire from wicking.
Greg
When I had a chevy cavalier, I had to redo the multiple crimped connector under the battery holder. Soldered or crimped, it's a manufacturer FAULT to put connections under batteries. Do they HEAR me ????
Greg
What job or project was that? How many quantities?
Years ago, I did use NoAlOx, on a thermostat. With .250 push on terminals. I came back a couple months later, the terminals had corroded and were useless. Changed to dielectric grease. That seemed to work better. Not sure what it is, with the grey stuff in the squirt tube.
My parents had a Chrysler Imperial LeBaron. We finally found the problem, it would go dead at random moments. The problem was the bullet connectors, to the fusible links, near the battery. Dad would get out and wiggle them, and the car would then start up and be fine for a while
In the early 1970's, the made for TV show, Emergency! had a similar problem with the squad truck, I think the episode was called "Breakdown". Wish I could go back and tell them, then, what the problem likely was.
my van had a problem with the resistor pack for the blower speed control. the connections would overheat and get flakey. after several failures i soldered the wires to the resistor bank connections.
no more troubles this repair outlasted the van
I had to do the same to several connections on both the TranSport and the Mystique. Due to crappy connectors, not due to crimped connectors.
NoAlOx is for ALUMINUM connections, not tinned prass (or bare brass either)
Since I was in the industrial battery business I'd replace or install close to 1000 connectors a year. Since Enersys itself is a world wide company they used hundreds of thousands of connectors a year...more than likely , over a million.
Working on that scale, I can imagine the solder, torch, power for the soldering iron and so on. That would add up after a while. I do a couple dozen crimps a year, and max of 15 amp rating or so. For me to get out a torch and some silver solder is no big expense.
Thanks for sharing a bit more about the, uh, "big picture" of what you were doing.
Our "radio guy" for all the state 2-way radios installs them with crimped connections as far as hooking them into the car electrical system, no soldering.
Putting aside vibration issues, I've always viewed the solder as insurance against corrosion. I have found crimps that were bad due to corrosion when used in exposed to weather areas. Never found a problem when they were soldered in such use.
Really, that must be why when they bury wires they just crimp them and call it good......
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