Cost of production. You can flow solder over an entire PCB in one go. And do many PCBs at the same time. Each crimp would have to be made individually, or with a machine which did several at once - and it doesn't take imagination to guess what that would cost.
Also, solder is reliable enough in this context for the design life - say about 5 years.
FWIW, the harnesses going to those PCBs will invariably have crimped plugs.
But everyone has already said often enough to use the correct tool. Because of economy of scale, they are much cheaper than other more specialised crimping tools. Somewhere between 10 and 20 quid buys a good one.
As much as the spot welder that does the pinout wires on a 25c chip perhaps?
Mmm. And all those moon rockets and NASA stuff just FULL of soldered joints?
Thanks everyone for the helpful comments, I feel more confident about tackling my first job with crimp joints now.
I'll stick to the idea of crimps rather than solder, I don't think my soldering technique for smallish electronic stuff would scale up to 2.5 & 4 mm^2 cable very well.
"Pete C" wrote | If you partly cover the intake on a hairdryer it should be hot | enough to do the heatshrink - or possibly even catch fire!
I noticed a nice violet glow from something inside the vacuum cleaner this morning.
Owain
In message , "Dave Plowman (News)" writes
Which are prone to breaking - quite a common problem in boilers
But they are not flow soldered and they are all individually inspected
Badly designed cable clamps on the connectors then and or rough handling.
Whatever the pros and cons, one thing is certain. A soldered joint is far more likely to fracture than a crimped one. A properly made crimp should hardly weaken the cable at all.
In message , "Dave Plowman (News)" writes
You don't say ...
vibration and CH fitters ...
And poorly specified cable and or connectors. Not that you're at all worried. ;-)
You are joking I trust? You and I can make perfect joints, but you should see the attempts of a novice. It takes practice and dedication. It is the lack of the latter that is the problem. Given a crimp and decent ratchet crimper all you need to do is trim the wire to the correct length and make sure it goes fully into the crimp .
Phil The uk.d-i-y FAQ is at
True. You can use an encapsulating oversleeve if that is an expected environment.
Of course.
The point being? That gibbons can do better with a cruddy soldering iron?
Phil The uk.d-i-y FAQ is at
It would also be quite hard to get crimp joint small enough to fit 468 under a pentium chip!
Phil The uk.d-i-y FAQ is at
Even that is too advanced for the average simian who does electrical installations IMHO :-)
No, that a competent D-I-Y er can.
Gibbons f*ck up everything.
We are talking about diyers competent enough to get here, not apes or monkeys.
Phil The uk.d-i-y FAQ is at
If you gave an infinite number of monkeys an infinite number of soldering irons they would eventually make an IBM PC.
So THAT'S how they do it ;-)
Odd. I rather thought that's where it all came from in the first place...
Actually, they would have evolved into IMM before they did that.
In message , "Dave Plowman (News)" writes
Not so.
E.g. last week, I sent out a Suprima pcb, and got a phone call saying it didn't work, the board keeps going into lockout just like the other one.
I sent another board out and got the first one I sent back - no problem with it
... "Ah yes, I found there was a break in the HT lead"
This wasn't an isolated example
Or the invertebrates who try and repair pcbs with plumbers solder !
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